Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 | // SPDX-License-Identifier: GPL-2.0 /* * imx274.c - IMX274 CMOS Image Sensor driver * * Copyright (C) 2017, Leopard Imaging, Inc. * * Leon Luo <leonl@leopardimaging.com> * Edwin Zou <edwinz@leopardimaging.com> * Luca Ceresoli <luca@lucaceresoli.net> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/v4l2-mediabus.h> #include <linux/videodev2.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> /* * See "SHR, SVR Setting" in datasheet */ #define IMX274_DEFAULT_FRAME_LENGTH (4550) #define IMX274_MAX_FRAME_LENGTH (0x000fffff) /* * See "Frame Rate Adjustment" in datasheet */ #define IMX274_PIXCLK_CONST1 (72000000) #define IMX274_PIXCLK_CONST2 (1000000) /* * The input gain is shifted by IMX274_GAIN_SHIFT to get * decimal number. The real gain is * (float)input_gain_value / (1 << IMX274_GAIN_SHIFT) */ #define IMX274_GAIN_SHIFT (8) #define IMX274_GAIN_SHIFT_MASK ((1 << IMX274_GAIN_SHIFT) - 1) /* * See "Analog Gain" and "Digital Gain" in datasheet * min gain is 1X * max gain is calculated based on IMX274_GAIN_REG_MAX */ #define IMX274_GAIN_REG_MAX (1957) #define IMX274_MIN_GAIN (0x01 << IMX274_GAIN_SHIFT) #define IMX274_MAX_ANALOG_GAIN ((2048 << IMX274_GAIN_SHIFT)\ / (2048 - IMX274_GAIN_REG_MAX)) #define IMX274_MAX_DIGITAL_GAIN (8) #define IMX274_DEF_GAIN (20 << IMX274_GAIN_SHIFT) #define IMX274_GAIN_CONST (2048) /* for gain formula */ /* * 1 line time in us = (HMAX / 72), minimal is 4 lines */ #define IMX274_MIN_EXPOSURE_TIME (4 * 260 / 72) #define IMX274_MAX_WIDTH (3840) #define IMX274_MAX_HEIGHT (2160) #define IMX274_MAX_FRAME_RATE (120) #define IMX274_MIN_FRAME_RATE (5) #define IMX274_DEF_FRAME_RATE (60) /* * register SHR is limited to (SVR value + 1) x VMAX value - 4 */ #define IMX274_SHR_LIMIT_CONST (4) /* * Min and max sensor reset delay (microseconds) */ #define IMX274_RESET_DELAY1 (2000) #define IMX274_RESET_DELAY2 (2200) /* * shift and mask constants */ #define IMX274_SHIFT_8_BITS (8) #define IMX274_SHIFT_16_BITS (16) #define IMX274_MASK_LSB_2_BITS (0x03) #define IMX274_MASK_LSB_3_BITS (0x07) #define IMX274_MASK_LSB_4_BITS (0x0f) #define IMX274_MASK_LSB_8_BITS (0x00ff) #define DRIVER_NAME "IMX274" /* * IMX274 register definitions */ #define IMX274_SHR_REG_MSB 0x300D /* SHR */ #define IMX274_SHR_REG_LSB 0x300C /* SHR */ #define IMX274_SVR_REG_MSB 0x300F /* SVR */ #define IMX274_SVR_REG_LSB 0x300E /* SVR */ #define IMX274_HTRIM_EN_REG 0x3037 #define IMX274_HTRIM_START_REG_LSB 0x3038 #define IMX274_HTRIM_START_REG_MSB 0x3039 #define IMX274_HTRIM_END_REG_LSB 0x303A #define IMX274_HTRIM_END_REG_MSB 0x303B #define IMX274_VWIDCUTEN_REG 0x30DD #define IMX274_VWIDCUT_REG_LSB 0x30DE #define IMX274_VWIDCUT_REG_MSB 0x30DF #define IMX274_VWINPOS_REG_LSB 0x30E0 #define IMX274_VWINPOS_REG_MSB 0x30E1 #define IMX274_WRITE_VSIZE_REG_LSB 0x3130 #define IMX274_WRITE_VSIZE_REG_MSB 0x3131 #define IMX274_Y_OUT_SIZE_REG_LSB 0x3132 #define IMX274_Y_OUT_SIZE_REG_MSB 0x3133 #define IMX274_VMAX_REG_1 0x30FA /* VMAX, MSB */ #define IMX274_VMAX_REG_2 0x30F9 /* VMAX */ #define IMX274_VMAX_REG_3 0x30F8 /* VMAX, LSB */ #define IMX274_HMAX_REG_MSB 0x30F7 /* HMAX */ #define IMX274_HMAX_REG_LSB 0x30F6 /* HMAX */ #define IMX274_ANALOG_GAIN_ADDR_LSB 0x300A /* ANALOG GAIN LSB */ #define IMX274_ANALOG_GAIN_ADDR_MSB 0x300B /* ANALOG GAIN MSB */ #define IMX274_DIGITAL_GAIN_REG 0x3012 /* Digital Gain */ #define IMX274_VFLIP_REG 0x301A /* VERTICAL FLIP */ #define IMX274_TEST_PATTERN_REG 0x303D /* TEST PATTERN */ #define IMX274_STANDBY_REG 0x3000 /* STANDBY */ #define IMX274_TABLE_WAIT_MS 0 #define IMX274_TABLE_END 1 /* regulator supplies */ static const char * const imx274_supply_names[] = { "vddl", /* IF (1.2V) supply */ "vdig", /* Digital Core (1.8V) supply */ "vana", /* Analog (2.8V) supply */ }; #define IMX274_NUM_SUPPLIES ARRAY_SIZE(imx274_supply_names) /* * imx274 I2C operation related structure */ struct reg_8 { u16 addr; u8 val; }; static const struct regmap_config imx274_regmap_config = { .reg_bits = 16, .val_bits = 8, .cache_type = REGCACHE_RBTREE, }; /* * Parameters for each imx274 readout mode. * * These are the values to configure the sensor in one of the * implemented modes. * * @init_regs: registers to initialize the mode * @wbin_ratio: width downscale factor (e.g. 3 for 1280; 3 = 3840/1280) * @hbin_ratio: height downscale factor (e.g. 3 for 720; 3 = 2160/720) * @min_frame_len: Minimum frame length for each mode (see "Frame Rate * Adjustment (CSI-2)" in the datasheet) * @min_SHR: Minimum SHR register value (see "Shutter Setting (CSI-2)" in the * datasheet) * @max_fps: Maximum frames per second * @nocpiop: Number of clocks per internal offset period (see "Integration Time * in Each Readout Drive Mode (CSI-2)" in the datasheet) */ struct imx274_mode { const struct reg_8 *init_regs; u8 wbin_ratio; u8 hbin_ratio; int min_frame_len; int min_SHR; int max_fps; int nocpiop; }; /* * imx274 test pattern related structure */ enum { TEST_PATTERN_DISABLED = 0, TEST_PATTERN_ALL_000H, TEST_PATTERN_ALL_FFFH, TEST_PATTERN_ALL_555H, TEST_PATTERN_ALL_AAAH, TEST_PATTERN_VSP_5AH, /* VERTICAL STRIPE PATTERN 555H/AAAH */ TEST_PATTERN_VSP_A5H, /* VERTICAL STRIPE PATTERN AAAH/555H */ TEST_PATTERN_VSP_05H, /* VERTICAL STRIPE PATTERN 000H/555H */ TEST_PATTERN_VSP_50H, /* VERTICAL STRIPE PATTERN 555H/000H */ TEST_PATTERN_VSP_0FH, /* VERTICAL STRIPE PATTERN 000H/FFFH */ TEST_PATTERN_VSP_F0H, /* VERTICAL STRIPE PATTERN FFFH/000H */ TEST_PATTERN_H_COLOR_BARS, TEST_PATTERN_V_COLOR_BARS, }; static const char * const tp_qmenu[] = { "Disabled", "All 000h Pattern", "All FFFh Pattern", "All 555h Pattern", "All AAAh Pattern", "Vertical Stripe (555h / AAAh)", "Vertical Stripe (AAAh / 555h)", "Vertical Stripe (000h / 555h)", "Vertical Stripe (555h / 000h)", "Vertical Stripe (000h / FFFh)", "Vertical Stripe (FFFh / 000h)", "Vertical Color Bars", "Horizontal Color Bars", }; /* * All-pixel scan mode (10-bit) * imx274 mode1(refer to datasheet) register configuration with * 3840x2160 resolution, raw10 data and mipi four lane output */ static const struct reg_8 imx274_mode1_3840x2160_raw10[] = { {0x3004, 0x01}, {0x3005, 0x01}, {0x3006, 0x00}, {0x3007, 0xa2}, {0x3018, 0xA2}, /* output XVS, HVS */ {0x306B, 0x05}, {0x30E2, 0x01}, {0x30EE, 0x01}, {0x3342, 0x0A}, {0x3343, 0x00}, {0x3344, 0x16}, {0x3345, 0x00}, {0x33A6, 0x01}, {0x3528, 0x0E}, {0x3554, 0x1F}, {0x3555, 0x01}, {0x3556, 0x01}, {0x3557, 0x01}, {0x3558, 0x01}, {0x3559, 0x00}, {0x355A, 0x00}, {0x35BA, 0x0E}, {0x366A, 0x1B}, {0x366B, 0x1A}, {0x366C, 0x19}, {0x366D, 0x17}, {0x3A41, 0x08}, {IMX274_TABLE_END, 0x00} }; /* * Horizontal/vertical 2/2-line binning * (Horizontal and vertical weightedbinning, 10-bit) * imx274 mode3(refer to datasheet) register configuration with * 1920x1080 resolution, raw10 data and mipi four lane output */ static const struct reg_8 imx274_mode3_1920x1080_raw10[] = { {0x3004, 0x02}, {0x3005, 0x21}, {0x3006, 0x00}, {0x3007, 0xb1}, {0x3018, 0xA2}, /* output XVS, HVS */ {0x306B, 0x05}, {0x30E2, 0x02}, {0x30EE, 0x01}, {0x3342, 0x0A}, {0x3343, 0x00}, {0x3344, 0x1A}, {0x3345, 0x00}, {0x33A6, 0x01}, {0x3528, 0x0E}, {0x3554, 0x00}, {0x3555, 0x01}, {0x3556, 0x01}, {0x3557, 0x01}, {0x3558, 0x01}, {0x3559, 0x00}, {0x355A, 0x00}, {0x35BA, 0x0E}, {0x366A, 0x1B}, {0x366B, 0x1A}, {0x366C, 0x19}, {0x366D, 0x17}, {0x3A41, 0x08}, {IMX274_TABLE_END, 0x00} }; /* * Vertical 2/3 subsampling binning horizontal 3 binning * imx274 mode5(refer to datasheet) register configuration with * 1280x720 resolution, raw10 data and mipi four lane output */ static const struct reg_8 imx274_mode5_1280x720_raw10[] = { {0x3004, 0x03}, {0x3005, 0x31}, {0x3006, 0x00}, {0x3007, 0xa9}, {0x3018, 0xA2}, /* output XVS, HVS */ {0x306B, 0x05}, {0x30E2, 0x03}, {0x30EE, 0x01}, {0x3342, 0x0A}, {0x3343, 0x00}, {0x3344, 0x1B}, {0x3345, 0x00}, {0x33A6, 0x01}, {0x3528, 0x0E}, {0x3554, 0x00}, {0x3555, 0x01}, {0x3556, 0x01}, {0x3557, 0x01}, {0x3558, 0x01}, {0x3559, 0x00}, {0x355A, 0x00}, {0x35BA, 0x0E}, {0x366A, 0x1B}, {0x366B, 0x19}, {0x366C, 0x17}, {0x366D, 0x17}, {0x3A41, 0x04}, {IMX274_TABLE_END, 0x00} }; /* * Vertical 2/8 subsampling horizontal 3 binning * imx274 mode6(refer to datasheet) register configuration with * 1280x540 resolution, raw10 data and mipi four lane output */ static const struct reg_8 imx274_mode6_1280x540_raw10[] = { {0x3004, 0x04}, /* mode setting */ {0x3005, 0x31}, {0x3006, 0x00}, {0x3007, 0x02}, /* mode setting */ {0x3018, 0xA2}, /* output XVS, HVS */ {0x306B, 0x05}, {0x30E2, 0x04}, /* mode setting */ {0x30EE, 0x01}, {0x3342, 0x0A}, {0x3343, 0x00}, {0x3344, 0x16}, {0x3345, 0x00}, {0x33A6, 0x01}, {0x3528, 0x0E}, {0x3554, 0x1F}, {0x3555, 0x01}, {0x3556, 0x01}, {0x3557, 0x01}, {0x3558, 0x01}, {0x3559, 0x00}, {0x355A, 0x00}, {0x35BA, 0x0E}, {0x366A, 0x1B}, {0x366B, 0x1A}, {0x366C, 0x19}, {0x366D, 0x17}, {0x3A41, 0x04}, {IMX274_TABLE_END, 0x00} }; /* * imx274 first step register configuration for * starting stream */ static const struct reg_8 imx274_start_1[] = { {IMX274_STANDBY_REG, 0x12}, /* PLRD: clock settings */ {0x3120, 0xF0}, {0x3121, 0x00}, {0x3122, 0x02}, {0x3129, 0x9C}, {0x312A, 0x02}, {0x312D, 0x02}, {0x310B, 0x00}, /* PLSTMG */ {0x304C, 0x00}, /* PLSTMG01 */ {0x304D, 0x03}, {0x331C, 0x1A}, {0x331D, 0x00}, {0x3502, 0x02}, {0x3529, 0x0E}, {0x352A, 0x0E}, {0x352B, 0x0E}, {0x3538, 0x0E}, {0x3539, 0x0E}, {0x3553, 0x00}, {0x357D, 0x05}, {0x357F, 0x05}, {0x3581, 0x04}, {0x3583, 0x76}, {0x3587, 0x01}, {0x35BB, 0x0E}, {0x35BC, 0x0E}, {0x35BD, 0x0E}, {0x35BE, 0x0E}, {0x35BF, 0x0E}, {0x366E, 0x00}, {0x366F, 0x00}, {0x3670, 0x00}, {0x3671, 0x00}, /* PSMIPI */ {0x3304, 0x32}, /* PSMIPI1 */ {0x3305, 0x00}, {0x3306, 0x32}, {0x3307, 0x00}, {0x3590, 0x32}, {0x3591, 0x00}, {0x3686, 0x32}, {0x3687, 0x00}, {IMX274_TABLE_END, 0x00} }; /* * imx274 second step register configuration for * starting stream */ static const struct reg_8 imx274_start_2[] = { {IMX274_STANDBY_REG, 0x00}, {0x303E, 0x02}, /* SYS_MODE = 2 */ {IMX274_TABLE_END, 0x00} }; /* * imx274 third step register configuration for * starting stream */ static const struct reg_8 imx274_start_3[] = { {0x30F4, 0x00}, {0x3018, 0xA2}, /* XHS VHS OUTPUT */ {IMX274_TABLE_END, 0x00} }; /* * imx274 register configuration for stopping stream */ static const struct reg_8 imx274_stop[] = { {IMX274_STANDBY_REG, 0x01}, {IMX274_TABLE_END, 0x00} }; /* * imx274 disable test pattern register configuration */ static const struct reg_8 imx274_tp_disabled[] = { {0x303C, 0x00}, {0x377F, 0x00}, {0x3781, 0x00}, {0x370B, 0x00}, {IMX274_TABLE_END, 0x00} }; /* * imx274 test pattern register configuration * reg 0x303D defines the test pattern modes */ static const struct reg_8 imx274_tp_regs[] = { {0x303C, 0x11}, {0x370E, 0x01}, {0x377F, 0x01}, {0x3781, 0x01}, {0x370B, 0x11}, {IMX274_TABLE_END, 0x00} }; /* nocpiop happens to be the same number for the implemented modes */ static const struct imx274_mode imx274_modes[] = { { /* mode 1, 4K */ .wbin_ratio = 1, /* 3840 */ .hbin_ratio = 1, /* 2160 */ .init_regs = imx274_mode1_3840x2160_raw10, .min_frame_len = 4550, .min_SHR = 12, .max_fps = 60, .nocpiop = 112, }, { /* mode 3, 1080p */ .wbin_ratio = 2, /* 1920 */ .hbin_ratio = 2, /* 1080 */ .init_regs = imx274_mode3_1920x1080_raw10, .min_frame_len = 2310, .min_SHR = 8, .max_fps = 120, .nocpiop = 112, }, { /* mode 5, 720p */ .wbin_ratio = 3, /* 1280 */ .hbin_ratio = 3, /* 720 */ .init_regs = imx274_mode5_1280x720_raw10, .min_frame_len = 2310, .min_SHR = 8, .max_fps = 120, .nocpiop = 112, }, { /* mode 6, 540p */ .wbin_ratio = 3, /* 1280 */ .hbin_ratio = 4, /* 540 */ .init_regs = imx274_mode6_1280x540_raw10, .min_frame_len = 2310, .min_SHR = 4, .max_fps = 120, .nocpiop = 112, }, }; /* * struct imx274_ctrls - imx274 ctrl structure * @handler: V4L2 ctrl handler structure * @exposure: Pointer to expsure ctrl structure * @gain: Pointer to gain ctrl structure * @vflip: Pointer to vflip ctrl structure * @test_pattern: Pointer to test pattern ctrl structure */ struct imx274_ctrls { struct v4l2_ctrl_handler handler; struct v4l2_ctrl *exposure; struct v4l2_ctrl *gain; struct v4l2_ctrl *vflip; struct v4l2_ctrl *test_pattern; }; /* * struct stim274 - imx274 device structure * @sd: V4L2 subdevice structure * @pad: Media pad structure * @client: Pointer to I2C client * @ctrls: imx274 control structure * @crop: rect to be captured * @compose: compose rect, i.e. output resolution * @format: V4L2 media bus frame format structure * (width and height are in sync with the compose rect) * @frame_rate: V4L2 frame rate structure * @regmap: Pointer to regmap structure * @reset_gpio: Pointer to reset gpio * @supplies: List of analog and digital supply regulators * @inck: Pointer to sensor input clock * @lock: Mutex structure * @mode: Parameters for the selected readout mode */ struct stimx274 { struct v4l2_subdev sd; struct media_pad pad; struct i2c_client *client; struct imx274_ctrls ctrls; struct v4l2_rect crop; struct v4l2_mbus_framefmt format; struct v4l2_fract frame_interval; struct regmap *regmap; struct gpio_desc *reset_gpio; struct regulator_bulk_data supplies[IMX274_NUM_SUPPLIES]; struct clk *inck; struct mutex lock; /* mutex lock for operations */ const struct imx274_mode *mode; }; #define IMX274_ROUND(dim, step, flags) \ ((flags) & V4L2_SEL_FLAG_GE \ ? roundup((dim), (step)) \ : ((flags) & V4L2_SEL_FLAG_LE \ ? rounddown((dim), (step)) \ : rounddown((dim) + (step) / 2, (step)))) /* * Function declaration */ static int imx274_set_gain(struct stimx274 *priv, struct v4l2_ctrl *ctrl); static int imx274_set_exposure(struct stimx274 *priv, int val); static int imx274_set_vflip(struct stimx274 *priv, int val); static int imx274_set_test_pattern(struct stimx274 *priv, int val); static int imx274_set_frame_interval(struct stimx274 *priv, struct v4l2_fract frame_interval); static inline void msleep_range(unsigned int delay_base) { usleep_range(delay_base * 1000, delay_base * 1000 + 500); } /* * v4l2_ctrl and v4l2_subdev related operations */ static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) { return &container_of(ctrl->handler, struct stimx274, ctrls.handler)->sd; } static inline struct stimx274 *to_imx274(struct v4l2_subdev *sd) { return container_of(sd, struct stimx274, sd); } /* * Writing a register table * * @priv: Pointer to device * @table: Table containing register values (with optional delays) * * This is used to write register table into sensor's reg map. * * Return: 0 on success, errors otherwise */ static int imx274_write_table(struct stimx274 *priv, const struct reg_8 table[]) { struct regmap *regmap = priv->regmap; int err = 0; const struct reg_8 *next; u8 val; int range_start = -1; int range_count = 0; u8 range_vals[16]; int max_range_vals = ARRAY_SIZE(range_vals); for (next = table;; next++) { if ((next->addr != range_start + range_count) || (next->addr == IMX274_TABLE_END) || (next->addr == IMX274_TABLE_WAIT_MS) || (range_count == max_range_vals)) { if (range_count == 1) err = regmap_write(regmap, range_start, range_vals[0]); else if (range_count > 1) err = regmap_bulk_write(regmap, range_start, &range_vals[0], range_count); else err = 0; if (err) return err; range_start = -1; range_count = 0; /* Handle special address values */ if (next->addr == IMX274_TABLE_END) break; if (next->addr == IMX274_TABLE_WAIT_MS) { msleep_range(next->val); continue; } } val = next->val; if (range_start == -1) range_start = next->addr; range_vals[range_count++] = val; } return 0; } static inline int imx274_write_reg(struct stimx274 *priv, u16 addr, u8 val) { int err; err = regmap_write(priv->regmap, addr, val); if (err) dev_err(&priv->client->dev, "%s : i2c write failed, %x = %x\n", __func__, addr, val); else dev_dbg(&priv->client->dev, "%s : addr 0x%x, val=0x%x\n", __func__, addr, val); return err; } /** * imx274_read_mbreg - Read a multibyte register. * * Uses a bulk read where possible. * * @priv: Pointer to device structure * @addr: Address of the LSB register. Other registers must be * consecutive, least-to-most significant. * @val: Pointer to store the register value (cpu endianness) * @nbytes: Number of bytes to read (range: [1..3]). * Other bytes are zet to 0. * * Return: 0 on success, errors otherwise */ static int imx274_read_mbreg(struct stimx274 *priv, u16 addr, u32 *val, size_t nbytes) { __le32 val_le = 0; int err; err = regmap_bulk_read(priv->regmap, addr, &val_le, nbytes); if (err) { dev_err(&priv->client->dev, "%s : i2c bulk read failed, %x (%zu bytes)\n", __func__, addr, nbytes); } else { *val = le32_to_cpu(val_le); dev_dbg(&priv->client->dev, "%s : addr 0x%x, val=0x%x (%zu bytes)\n", __func__, addr, *val, nbytes); } return err; } /** * imx274_write_mbreg - Write a multibyte register. * * Uses a bulk write where possible. * * @priv: Pointer to device structure * @addr: Address of the LSB register. Other registers must be * consecutive, least-to-most significant. * @val: Value to be written to the register (cpu endianness) * @nbytes: Number of bytes to write (range: [1..3]) */ static int imx274_write_mbreg(struct stimx274 *priv, u16 addr, u32 val, size_t nbytes) { __le32 val_le = cpu_to_le32(val); int err; err = regmap_bulk_write(priv->regmap, addr, &val_le, nbytes); if (err) dev_err(&priv->client->dev, "%s : i2c bulk write failed, %x = %x (%zu bytes)\n", __func__, addr, val, nbytes); else dev_dbg(&priv->client->dev, "%s : addr 0x%x, val=0x%x (%zu bytes)\n", __func__, addr, val, nbytes); return err; } /* * Set mode registers to start stream. * @priv: Pointer to device structure * * Return: 0 on success, errors otherwise */ static int imx274_mode_regs(struct stimx274 *priv) { int err = 0; err = imx274_write_table(priv, imx274_start_1); if (err) return err; err = imx274_write_table(priv, priv->mode->init_regs); return err; } /* * imx274_start_stream - Function for starting stream per mode index * @priv: Pointer to device structure * * Return: 0 on success, errors otherwise */ static int imx274_start_stream(struct stimx274 *priv) { int err = 0; err = __v4l2_ctrl_handler_setup(&priv->ctrls.handler); if (err) { dev_err(&priv->client->dev, "Error %d setup controls\n", err); return err; } /* * Refer to "Standby Cancel Sequence when using CSI-2" in * imx274 datasheet, it should wait 10ms or more here. * give it 1 extra ms for margin */ msleep_range(11); err = imx274_write_table(priv, imx274_start_2); if (err) return err; /* * Refer to "Standby Cancel Sequence when using CSI-2" in * imx274 datasheet, it should wait 7ms or more here. * give it 1 extra ms for margin */ msleep_range(8); err = imx274_write_table(priv, imx274_start_3); if (err) return err; return 0; } /* * imx274_reset - Function called to reset the sensor * @priv: Pointer to device structure * @rst: Input value for determining the sensor's end state after reset * * Set the senor in reset and then * if rst = 0, keep it in reset; * if rst = 1, bring it out of reset. * */ static void imx274_reset(struct stimx274 *priv, int rst) { gpiod_set_value_cansleep(priv->reset_gpio, 0); usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); gpiod_set_value_cansleep(priv->reset_gpio, !!rst); usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); } static int imx274_power_on(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct stimx274 *imx274 = to_imx274(sd); int ret; /* keep sensor in reset before power on */ imx274_reset(imx274, 0); ret = clk_prepare_enable(imx274->inck); if (ret) { dev_err(&imx274->client->dev, "Failed to enable input clock: %d\n", ret); return ret; } ret = regulator_bulk_enable(IMX274_NUM_SUPPLIES, imx274->supplies); if (ret) { dev_err(&imx274->client->dev, "Failed to enable regulators: %d\n", ret); goto fail_reg; } udelay(2); imx274_reset(imx274, 1); return 0; fail_reg: clk_disable_unprepare(imx274->inck); return ret; } static int imx274_power_off(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct stimx274 *imx274 = to_imx274(sd); imx274_reset(imx274, 0); regulator_bulk_disable(IMX274_NUM_SUPPLIES, imx274->supplies); clk_disable_unprepare(imx274->inck); return 0; } static int imx274_regulators_get(struct device *dev, struct stimx274 *imx274) { unsigned int i; for (i = 0; i < IMX274_NUM_SUPPLIES; i++) imx274->supplies[i].supply = imx274_supply_names[i]; return devm_regulator_bulk_get(dev, IMX274_NUM_SUPPLIES, imx274->supplies); } /** * imx274_s_ctrl - This is used to set the imx274 V4L2 controls * @ctrl: V4L2 control to be set * * This function is used to set the V4L2 controls for the imx274 sensor. * * Return: 0 on success, errors otherwise */ static int imx274_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sd(ctrl); struct stimx274 *imx274 = to_imx274(sd); int ret = -EINVAL; if (!pm_runtime_get_if_in_use(&imx274->client->dev)) return 0; dev_dbg(&imx274->client->dev, "%s : s_ctrl: %s, value: %d\n", __func__, ctrl->name, ctrl->val); switch (ctrl->id) { case V4L2_CID_EXPOSURE: dev_dbg(&imx274->client->dev, "%s : set V4L2_CID_EXPOSURE\n", __func__); ret = imx274_set_exposure(imx274, ctrl->val); break; case V4L2_CID_GAIN: dev_dbg(&imx274->client->dev, "%s : set V4L2_CID_GAIN\n", __func__); ret = imx274_set_gain(imx274, ctrl); break; case V4L2_CID_VFLIP: dev_dbg(&imx274->client->dev, "%s : set V4L2_CID_VFLIP\n", __func__); ret = imx274_set_vflip(imx274, ctrl->val); break; case V4L2_CID_TEST_PATTERN: dev_dbg(&imx274->client->dev, "%s : set V4L2_CID_TEST_PATTERN\n", __func__); ret = imx274_set_test_pattern(imx274, ctrl->val); break; } pm_runtime_put(&imx274->client->dev); return ret; } static int imx274_binning_goodness(struct stimx274 *imx274, int w, int ask_w, int h, int ask_h, u32 flags) { struct device *dev = &imx274->client->dev; const int goodness = 100000; int val = 0; if (flags & V4L2_SEL_FLAG_GE) { if (w < ask_w) val -= goodness; if (h < ask_h) val -= goodness; } if (flags & V4L2_SEL_FLAG_LE) { if (w > ask_w) val -= goodness; if (h > ask_h) val -= goodness; } val -= abs(w - ask_w); val -= abs(h - ask_h); dev_dbg(dev, "%s: ask %dx%d, size %dx%d, goodness %d\n", __func__, ask_w, ask_h, w, h, val); return val; } /** * __imx274_change_compose - Helper function to change binning and set both * compose and format. * * We have two entry points to change binning: set_fmt and * set_selection(COMPOSE). Both have to compute the new output size * and set it in both the compose rect and the frame format size. We * also need to do the same things after setting cropping to restore * 1:1 binning. * * This function contains the common code for these three cases, it * has many arguments in order to accommodate the needs of all of * them. * * Must be called with imx274->lock locked. * * @imx274: The device object * @sd_state: The subdev state we are editing for TRY requests * @which: V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY from the caller * @width: Input-output parameter: set to the desired width before * the call, contains the chosen value after returning successfully * @height: Input-output parameter for height (see @width) * @flags: Selection flags from struct v4l2_subdev_selection, or 0 if not * available (when called from set_fmt) */ static int __imx274_change_compose(struct stimx274 *imx274, struct v4l2_subdev_state *sd_state, u32 which, u32 *width, u32 *height, u32 flags) { struct device *dev = &imx274->client->dev; const struct v4l2_rect *cur_crop; struct v4l2_mbus_framefmt *tgt_fmt; unsigned int i; const struct imx274_mode *best_mode = &imx274_modes[0]; int best_goodness = INT_MIN; if (which == V4L2_SUBDEV_FORMAT_TRY) { cur_crop = &sd_state->pads->try_crop; tgt_fmt = &sd_state->pads->try_fmt; } else { cur_crop = &imx274->crop; tgt_fmt = &imx274->format; } for (i = 0; i < ARRAY_SIZE(imx274_modes); i++) { u8 wratio = imx274_modes[i].wbin_ratio; u8 hratio = imx274_modes[i].hbin_ratio; int goodness = imx274_binning_goodness( imx274, cur_crop->width / wratio, *width, cur_crop->height / hratio, *height, flags); if (goodness >= best_goodness) { best_goodness = goodness; best_mode = &imx274_modes[i]; } } *width = cur_crop->width / best_mode->wbin_ratio; *height = cur_crop->height / best_mode->hbin_ratio; if (which == V4L2_SUBDEV_FORMAT_ACTIVE) imx274->mode = best_mode; dev_dbg(dev, "%s: selected %ux%u binning\n", __func__, best_mode->wbin_ratio, best_mode->hbin_ratio); tgt_fmt->width = *width; tgt_fmt->height = *height; tgt_fmt->field = V4L2_FIELD_NONE; return 0; } /** * imx274_get_fmt - Get the pad format * @sd: Pointer to V4L2 Sub device structure * @sd_state: Pointer to sub device state structure * @fmt: Pointer to pad level media bus format * * This function is used to get the pad format information. * * Return: 0 on success */ static int imx274_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct stimx274 *imx274 = to_imx274(sd); mutex_lock(&imx274->lock); fmt->format = imx274->format; mutex_unlock(&imx274->lock); return 0; } /** * imx274_set_fmt - This is used to set the pad format * @sd: Pointer to V4L2 Sub device structure * @sd_state: Pointer to sub device state information structure * @format: Pointer to pad level media bus format * * This function is used to set the pad format. * * Return: 0 on success */ static int imx274_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *fmt = &format->format; struct stimx274 *imx274 = to_imx274(sd); int err = 0; mutex_lock(&imx274->lock); err = __imx274_change_compose(imx274, sd_state, format->which, &fmt->width, &fmt->height, 0); if (err) goto out; /* * __imx274_change_compose already set width and height in the * applicable format, but we need to keep all other format * values, so do a full copy here */ fmt->field = V4L2_FIELD_NONE; if (format->which == V4L2_SUBDEV_FORMAT_TRY) sd_state->pads->try_fmt = *fmt; else imx274->format = *fmt; out: mutex_unlock(&imx274->lock); return err; } static int imx274_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct stimx274 *imx274 = to_imx274(sd); const struct v4l2_rect *src_crop; const struct v4l2_mbus_framefmt *src_fmt; int ret = 0; if (sel->pad != 0) return -EINVAL; if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) { sel->r.left = 0; sel->r.top = 0; sel->r.width = IMX274_MAX_WIDTH; sel->r.height = IMX274_MAX_HEIGHT; return 0; } if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { src_crop = &sd_state->pads->try_crop; src_fmt = &sd_state->pads->try_fmt; } else { src_crop = &imx274->crop; src_fmt = &imx274->format; } mutex_lock(&imx274->lock); switch (sel->target) { case V4L2_SEL_TGT_CROP: sel->r = *src_crop; break; case V4L2_SEL_TGT_COMPOSE_BOUNDS: sel->r.top = 0; sel->r.left = 0; sel->r.width = src_crop->width; sel->r.height = src_crop->height; break; case V4L2_SEL_TGT_COMPOSE: sel->r.top = 0; sel->r.left = 0; sel->r.width = src_fmt->width; sel->r.height = src_fmt->height; break; default: ret = -EINVAL; } mutex_unlock(&imx274->lock); return ret; } static int imx274_set_selection_crop(struct stimx274 *imx274, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct v4l2_rect *tgt_crop; struct v4l2_rect new_crop; bool size_changed; /* * h_step could be 12 or 24 depending on the binning. But we * won't know the binning until we choose the mode later in * __imx274_change_compose(). Thus let's be safe and use the * most conservative value in all cases. */ const u32 h_step = 24; new_crop.width = min_t(u32, IMX274_ROUND(sel->r.width, h_step, sel->flags), IMX274_MAX_WIDTH); /* Constraint: HTRIMMING_END - HTRIMMING_START >= 144 */ if (new_crop.width < 144) new_crop.width = 144; new_crop.left = min_t(u32, IMX274_ROUND(sel->r.left, h_step, 0), IMX274_MAX_WIDTH - new_crop.width); new_crop.height = min_t(u32, IMX274_ROUND(sel->r.height, 2, sel->flags), IMX274_MAX_HEIGHT); new_crop.top = min_t(u32, IMX274_ROUND(sel->r.top, 2, 0), IMX274_MAX_HEIGHT - new_crop.height); sel->r = new_crop; if (sel->which == V4L2_SUBDEV_FORMAT_TRY) tgt_crop = &sd_state->pads->try_crop; else tgt_crop = &imx274->crop; mutex_lock(&imx274->lock); size_changed = (new_crop.width != tgt_crop->width || new_crop.height != tgt_crop->height); /* __imx274_change_compose needs the new size in *tgt_crop */ *tgt_crop = new_crop; /* if crop size changed then reset the output image size */ if (size_changed) __imx274_change_compose(imx274, sd_state, sel->which, &new_crop.width, &new_crop.height, sel->flags); mutex_unlock(&imx274->lock); return 0; } static int imx274_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct stimx274 *imx274 = to_imx274(sd); if (sel->pad != 0) return -EINVAL; if (sel->target == V4L2_SEL_TGT_CROP) return imx274_set_selection_crop(imx274, sd_state, sel); if (sel->target == V4L2_SEL_TGT_COMPOSE) { int err; mutex_lock(&imx274->lock); err = __imx274_change_compose(imx274, sd_state, sel->which, &sel->r.width, &sel->r.height, sel->flags); mutex_unlock(&imx274->lock); /* * __imx274_change_compose already set width and * height in set->r, we still need to set top-left */ if (!err) { sel->r.top = 0; sel->r.left = 0; } return err; } return -EINVAL; } static int imx274_apply_trimming(struct stimx274 *imx274) { u32 h_start; u32 h_end; u32 hmax; u32 v_cut; s32 v_pos; u32 write_v_size; u32 y_out_size; int err; h_start = imx274->crop.left + 12; h_end = h_start + imx274->crop.width; /* Use the minimum allowed value of HMAX */ /* Note: except in mode 1, (width / 16 + 23) is always < hmax_min */ /* Note: 260 is the minimum HMAX in all implemented modes */ hmax = max_t(u32, 260, (imx274->crop.width) / 16 + 23); /* invert v_pos if VFLIP */ v_pos = imx274->ctrls.vflip->cur.val ? (-imx274->crop.top / 2) : (imx274->crop.top / 2); v_cut = (IMX274_MAX_HEIGHT - imx274->crop.height) / 2; write_v_size = imx274->crop.height + 22; y_out_size = imx274->crop.height; err = imx274_write_mbreg(imx274, IMX274_HMAX_REG_LSB, hmax, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_HTRIM_EN_REG, 1, 1); if (!err) err = imx274_write_mbreg(imx274, IMX274_HTRIM_START_REG_LSB, h_start, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_HTRIM_END_REG_LSB, h_end, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_VWIDCUTEN_REG, 1, 1); if (!err) err = imx274_write_mbreg(imx274, IMX274_VWIDCUT_REG_LSB, v_cut, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_VWINPOS_REG_LSB, v_pos, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_WRITE_VSIZE_REG_LSB, write_v_size, 2); if (!err) err = imx274_write_mbreg(imx274, IMX274_Y_OUT_SIZE_REG_LSB, y_out_size, 2); return err; } /** * imx274_g_frame_interval - Get the frame interval * @sd: Pointer to V4L2 Sub device structure * @fi: Pointer to V4l2 Sub device frame interval structure * * This function is used to get the frame interval. * * Return: 0 on success */ static int imx274_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct stimx274 *imx274 = to_imx274(sd); fi->interval = imx274->frame_interval; dev_dbg(&imx274->client->dev, "%s frame rate = %d / %d\n", __func__, imx274->frame_interval.numerator, imx274->frame_interval.denominator); return 0; } /** * imx274_s_frame_interval - Set the frame interval * @sd: Pointer to V4L2 Sub device structure * @fi: Pointer to V4l2 Sub device frame interval structure * * This function is used to set the frame intervavl. * * Return: 0 on success */ static int imx274_s_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct stimx274 *imx274 = to_imx274(sd); struct v4l2_ctrl *ctrl = imx274->ctrls.exposure; int min, max, def; int ret; ret = pm_runtime_resume_and_get(&imx274->client->dev); if (ret < 0) return ret; mutex_lock(&imx274->lock); ret = imx274_set_frame_interval(imx274, fi->interval); if (!ret) { fi->interval = imx274->frame_interval; /* * exposure time range is decided by frame interval * need to update it after frame interval changes */ min = IMX274_MIN_EXPOSURE_TIME; max = fi->interval.numerator * 1000000 / fi->interval.denominator; def = max; ret = __v4l2_ctrl_modify_range(ctrl, min, max, 1, def); if (ret) { dev_err(&imx274->client->dev, "Exposure ctrl range update failed\n"); goto unlock; } /* update exposure time accordingly */ imx274_set_exposure(imx274, ctrl->val); dev_dbg(&imx274->client->dev, "set frame interval to %uus\n", fi->interval.numerator * 1000000 / fi->interval.denominator); } unlock: mutex_unlock(&imx274->lock); pm_runtime_put(&imx274->client->dev); return ret; } /** * imx274_load_default - load default control values * @priv: Pointer to device structure * * Return: 0 on success, errors otherwise */ static void imx274_load_default(struct stimx274 *priv) { /* load default control values */ priv->frame_interval.numerator = 1; priv->frame_interval.denominator = IMX274_DEF_FRAME_RATE; priv->ctrls.exposure->val = 1000000 / IMX274_DEF_FRAME_RATE; priv->ctrls.gain->val = IMX274_DEF_GAIN; priv->ctrls.vflip->val = 0; priv->ctrls.test_pattern->val = TEST_PATTERN_DISABLED; } /** * imx274_s_stream - It is used to start/stop the streaming. * @sd: V4L2 Sub device * @on: Flag (True / False) * * This function controls the start or stop of streaming for the * imx274 sensor. * * Return: 0 on success, errors otherwise */ static int imx274_s_stream(struct v4l2_subdev *sd, int on) { struct stimx274 *imx274 = to_imx274(sd); int ret = 0; dev_dbg(&imx274->client->dev, "%s : %s, mode index = %td\n", __func__, on ? "Stream Start" : "Stream Stop", imx274->mode - &imx274_modes[0]); mutex_lock(&imx274->lock); if (on) { ret = pm_runtime_resume_and_get(&imx274->client->dev); if (ret < 0) { mutex_unlock(&imx274->lock); return ret; } /* load mode registers */ ret = imx274_mode_regs(imx274); if (ret) goto fail; ret = imx274_apply_trimming(imx274); if (ret) goto fail; /* * update frame rate & exposure. if the last mode is different, * HMAX could be changed. As the result, frame rate & exposure * are changed. * gain is not affected. */ ret = imx274_set_frame_interval(imx274, imx274->frame_interval); if (ret) goto fail; /* start stream */ ret = imx274_start_stream(imx274); if (ret) goto fail; } else { /* stop stream */ ret = imx274_write_table(imx274, imx274_stop); if (ret) goto fail; pm_runtime_put(&imx274->client->dev); } mutex_unlock(&imx274->lock); dev_dbg(&imx274->client->dev, "%s : Done\n", __func__); return 0; fail: pm_runtime_put(&imx274->client->dev); mutex_unlock(&imx274->lock); dev_err(&imx274->client->dev, "s_stream failed\n"); return ret; } /* * imx274_get_frame_length - Function for obtaining current frame length * @priv: Pointer to device structure * @val: Pointer to obtained value * * frame_length = vmax x (svr + 1), in unit of hmax. * * Return: 0 on success */ static int imx274_get_frame_length(struct stimx274 *priv, u32 *val) { int err; u32 svr; u32 vmax; err = imx274_read_mbreg(priv, IMX274_SVR_REG_LSB, &svr, 2); if (err) goto fail; err = imx274_read_mbreg(priv, IMX274_VMAX_REG_3, &vmax, 3); if (err) goto fail; *val = vmax * (svr + 1); return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } static int imx274_clamp_coarse_time(struct stimx274 *priv, u32 *val, u32 *frame_length) { int err; err = imx274_get_frame_length(priv, frame_length); if (err) return err; if (*frame_length < priv->mode->min_frame_len) *frame_length = priv->mode->min_frame_len; *val = *frame_length - *val; /* convert to raw shr */ if (*val > *frame_length - IMX274_SHR_LIMIT_CONST) *val = *frame_length - IMX274_SHR_LIMIT_CONST; else if (*val < priv->mode->min_SHR) *val = priv->mode->min_SHR; return 0; } /* * imx274_set_digital gain - Function called when setting digital gain * @priv: Pointer to device structure * @dgain: Value of digital gain. * * Digital gain has only 4 steps: 1x, 2x, 4x, and 8x * * Return: 0 on success */ static int imx274_set_digital_gain(struct stimx274 *priv, u32 dgain) { u8 reg_val; reg_val = ffs(dgain); if (reg_val) reg_val--; reg_val = clamp(reg_val, (u8)0, (u8)3); return imx274_write_reg(priv, IMX274_DIGITAL_GAIN_REG, reg_val & IMX274_MASK_LSB_4_BITS); } /* * imx274_set_gain - Function called when setting gain * @priv: Pointer to device structure * @val: Value of gain. the real value = val << IMX274_GAIN_SHIFT; * @ctrl: v4l2 control pointer * * Set the gain based on input value. * The caller should hold the mutex lock imx274->lock if necessary * * Return: 0 on success */ static int imx274_set_gain(struct stimx274 *priv, struct v4l2_ctrl *ctrl) { int err; u32 gain, analog_gain, digital_gain, gain_reg; gain = (u32)(ctrl->val); dev_dbg(&priv->client->dev, "%s : input gain = %d.%d\n", __func__, gain >> IMX274_GAIN_SHIFT, ((gain & IMX274_GAIN_SHIFT_MASK) * 100) >> IMX274_GAIN_SHIFT); if (gain > IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN) gain = IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN; else if (gain < IMX274_MIN_GAIN) gain = IMX274_MIN_GAIN; if (gain <= IMX274_MAX_ANALOG_GAIN) digital_gain = 1; else if (gain <= IMX274_MAX_ANALOG_GAIN * 2) digital_gain = 2; else if (gain <= IMX274_MAX_ANALOG_GAIN * 4) digital_gain = 4; else digital_gain = IMX274_MAX_DIGITAL_GAIN; analog_gain = gain / digital_gain; dev_dbg(&priv->client->dev, "%s : digital gain = %d, analog gain = %d.%d\n", __func__, digital_gain, analog_gain >> IMX274_GAIN_SHIFT, ((analog_gain & IMX274_GAIN_SHIFT_MASK) * 100) >> IMX274_GAIN_SHIFT); err = imx274_set_digital_gain(priv, digital_gain); if (err) goto fail; /* convert to register value, refer to imx274 datasheet */ gain_reg = (u32)IMX274_GAIN_CONST - (IMX274_GAIN_CONST << IMX274_GAIN_SHIFT) / analog_gain; if (gain_reg > IMX274_GAIN_REG_MAX) gain_reg = IMX274_GAIN_REG_MAX; err = imx274_write_mbreg(priv, IMX274_ANALOG_GAIN_ADDR_LSB, gain_reg, 2); if (err) goto fail; if (IMX274_GAIN_CONST - gain_reg == 0) { err = -EINVAL; goto fail; } /* convert register value back to gain value */ ctrl->val = (IMX274_GAIN_CONST << IMX274_GAIN_SHIFT) / (IMX274_GAIN_CONST - gain_reg) * digital_gain; dev_dbg(&priv->client->dev, "%s : GAIN control success, gain_reg = %d, new gain = %d\n", __func__, gain_reg, ctrl->val); return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } /* * imx274_set_coarse_time - Function called when setting SHR value * @priv: Pointer to device structure * @val: Value for exposure time in number of line_length, or [HMAX] * * Set SHR value based on input value. * * Return: 0 on success */ static int imx274_set_coarse_time(struct stimx274 *priv, u32 *val) { int err; u32 coarse_time, frame_length; coarse_time = *val; /* convert exposure_time to appropriate SHR value */ err = imx274_clamp_coarse_time(priv, &coarse_time, &frame_length); if (err) goto fail; err = imx274_write_mbreg(priv, IMX274_SHR_REG_LSB, coarse_time, 2); if (err) goto fail; *val = frame_length - coarse_time; return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } /* * imx274_set_exposure - Function called when setting exposure time * @priv: Pointer to device structure * @val: Variable for exposure time, in the unit of micro-second * * Set exposure time based on input value. * The caller should hold the mutex lock imx274->lock if necessary * * Return: 0 on success */ static int imx274_set_exposure(struct stimx274 *priv, int val) { int err; u32 hmax; u32 coarse_time; /* exposure time in unit of line (HMAX)*/ dev_dbg(&priv->client->dev, "%s : EXPOSURE control input = %d\n", __func__, val); /* step 1: convert input exposure_time (val) into number of 1[HMAX] */ err = imx274_read_mbreg(priv, IMX274_HMAX_REG_LSB, &hmax, 2); if (err) goto fail; if (hmax == 0) { err = -EINVAL; goto fail; } coarse_time = (IMX274_PIXCLK_CONST1 / IMX274_PIXCLK_CONST2 * val - priv->mode->nocpiop) / hmax; /* step 2: convert exposure_time into SHR value */ /* set SHR */ err = imx274_set_coarse_time(priv, &coarse_time); if (err) goto fail; priv->ctrls.exposure->val = (coarse_time * hmax + priv->mode->nocpiop) / (IMX274_PIXCLK_CONST1 / IMX274_PIXCLK_CONST2); dev_dbg(&priv->client->dev, "%s : EXPOSURE control success\n", __func__); return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } /* * imx274_set_vflip - Function called when setting vertical flip * @priv: Pointer to device structure * @val: Value for vflip setting * * Set vertical flip based on input value. * val = 0: normal, no vertical flip * val = 1: vertical flip enabled * The caller should hold the mutex lock imx274->lock if necessary * * Return: 0 on success */ static int imx274_set_vflip(struct stimx274 *priv, int val) { int err; err = imx274_write_reg(priv, IMX274_VFLIP_REG, val); if (err) { dev_err(&priv->client->dev, "VFLIP control error\n"); return err; } dev_dbg(&priv->client->dev, "%s : VFLIP control success\n", __func__); return 0; } /* * imx274_set_test_pattern - Function called when setting test pattern * @priv: Pointer to device structure * @val: Variable for test pattern * * Set to different test patterns based on input value. * * Return: 0 on success */ static int imx274_set_test_pattern(struct stimx274 *priv, int val) { int err = 0; if (val == TEST_PATTERN_DISABLED) { err = imx274_write_table(priv, imx274_tp_disabled); } else if (val <= TEST_PATTERN_V_COLOR_BARS) { err = imx274_write_reg(priv, IMX274_TEST_PATTERN_REG, val - 1); if (!err) err = imx274_write_table(priv, imx274_tp_regs); } else { err = -EINVAL; } if (!err) dev_dbg(&priv->client->dev, "%s : TEST PATTERN control success\n", __func__); else dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } /* * imx274_set_frame_length - Function called when setting frame length * @priv: Pointer to device structure * @val: Variable for frame length (= VMAX, i.e. vertical drive period length) * * Set frame length based on input value. * * Return: 0 on success */ static int imx274_set_frame_length(struct stimx274 *priv, u32 val) { int err; u32 frame_length; dev_dbg(&priv->client->dev, "%s : input length = %d\n", __func__, val); frame_length = (u32)val; err = imx274_write_mbreg(priv, IMX274_VMAX_REG_3, frame_length, 3); if (err) goto fail; return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } /* * imx274_set_frame_interval - Function called when setting frame interval * @priv: Pointer to device structure * @frame_interval: Variable for frame interval * * Change frame interval by updating VMAX value * The caller should hold the mutex lock imx274->lock if necessary * * Return: 0 on success */ static int imx274_set_frame_interval(struct stimx274 *priv, struct v4l2_fract frame_interval) { int err; u32 frame_length, req_frame_rate; u32 svr; u32 hmax; dev_dbg(&priv->client->dev, "%s: input frame interval = %d / %d", __func__, frame_interval.numerator, frame_interval.denominator); if (frame_interval.numerator == 0 || frame_interval.denominator == 0) { frame_interval.denominator = IMX274_DEF_FRAME_RATE; frame_interval.numerator = 1; } req_frame_rate = (u32)(frame_interval.denominator / frame_interval.numerator); /* boundary check */ if (req_frame_rate > priv->mode->max_fps) { frame_interval.numerator = 1; frame_interval.denominator = priv->mode->max_fps; } else if (req_frame_rate < IMX274_MIN_FRAME_RATE) { frame_interval.numerator = 1; frame_interval.denominator = IMX274_MIN_FRAME_RATE; } /* * VMAX = 1/frame_rate x 72M / (SVR+1) / HMAX * frame_length (i.e. VMAX) = (frame_interval) x 72M /(SVR+1) / HMAX */ err = imx274_read_mbreg(priv, IMX274_SVR_REG_LSB, &svr, 2); if (err) goto fail; dev_dbg(&priv->client->dev, "%s : register SVR = %d\n", __func__, svr); err = imx274_read_mbreg(priv, IMX274_HMAX_REG_LSB, &hmax, 2); if (err) goto fail; dev_dbg(&priv->client->dev, "%s : register HMAX = %d\n", __func__, hmax); if (hmax == 0 || frame_interval.denominator == 0) { err = -EINVAL; goto fail; } frame_length = IMX274_PIXCLK_CONST1 / (svr + 1) / hmax * frame_interval.numerator / frame_interval.denominator; err = imx274_set_frame_length(priv, frame_length); if (err) goto fail; priv->frame_interval = frame_interval; return 0; fail: dev_err(&priv->client->dev, "%s error = %d\n", __func__, err); return err; } static int imx274_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { if (code->index > 0) return -EINVAL; /* only supported format in the driver is Raw 10 bits SRGGB */ code->code = MEDIA_BUS_FMT_SRGGB10_1X10; return 0; } static const struct v4l2_subdev_pad_ops imx274_pad_ops = { .enum_mbus_code = imx274_enum_mbus_code, .get_fmt = imx274_get_fmt, .set_fmt = imx274_set_fmt, .get_selection = imx274_get_selection, .set_selection = imx274_set_selection, }; static const struct v4l2_subdev_video_ops imx274_video_ops = { .g_frame_interval = imx274_g_frame_interval, .s_frame_interval = imx274_s_frame_interval, .s_stream = imx274_s_stream, }; static const struct v4l2_subdev_ops imx274_subdev_ops = { .pad = &imx274_pad_ops, .video = &imx274_video_ops, }; static const struct v4l2_ctrl_ops imx274_ctrl_ops = { .s_ctrl = imx274_s_ctrl, }; static const struct of_device_id imx274_of_id_table[] = { { .compatible = "sony,imx274" }, { } }; MODULE_DEVICE_TABLE(of, imx274_of_id_table); static const struct i2c_device_id imx274_id[] = { { "IMX274", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, imx274_id); static int imx274_fwnode_parse(struct device *dev) { struct fwnode_handle *endpoint; /* Only CSI2 is supported */ struct v4l2_fwnode_endpoint ep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; int ret; endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); if (!endpoint) { dev_err(dev, "Endpoint node not found\n"); return -EINVAL; } ret = v4l2_fwnode_endpoint_parse(endpoint, &ep); fwnode_handle_put(endpoint); if (ret == -ENXIO) { dev_err(dev, "Unsupported bus type, should be CSI2\n"); return ret; } else if (ret) { dev_err(dev, "Parsing endpoint node failed %d\n", ret); return ret; } /* Check number of data lanes, only 4 lanes supported */ if (ep.bus.mipi_csi2.num_data_lanes != 4) { dev_err(dev, "Invalid data lanes: %d\n", ep.bus.mipi_csi2.num_data_lanes); return -EINVAL; } return 0; } static int imx274_probe(struct i2c_client *client) { struct v4l2_subdev *sd; struct stimx274 *imx274; struct device *dev = &client->dev; int ret; /* initialize imx274 */ imx274 = devm_kzalloc(dev, sizeof(*imx274), GFP_KERNEL); if (!imx274) return -ENOMEM; mutex_init(&imx274->lock); ret = imx274_fwnode_parse(dev); if (ret) return ret; imx274->inck = devm_clk_get_optional(dev, "inck"); if (IS_ERR(imx274->inck)) return PTR_ERR(imx274->inck); ret = imx274_regulators_get(dev, imx274); if (ret) { dev_err(dev, "Failed to get power regulators, err: %d\n", ret); return ret; } /* initialize format */ imx274->mode = &imx274_modes[0]; imx274->crop.width = IMX274_MAX_WIDTH; imx274->crop.height = IMX274_MAX_HEIGHT; imx274->format.width = imx274->crop.width / imx274->mode->wbin_ratio; imx274->format.height = imx274->crop.height / imx274->mode->hbin_ratio; imx274->format.field = V4L2_FIELD_NONE; imx274->format.code = MEDIA_BUS_FMT_SRGGB10_1X10; imx274->format.colorspace = V4L2_COLORSPACE_SRGB; imx274->frame_interval.numerator = 1; imx274->frame_interval.denominator = IMX274_DEF_FRAME_RATE; /* initialize regmap */ imx274->regmap = devm_regmap_init_i2c(client, &imx274_regmap_config); if (IS_ERR(imx274->regmap)) { dev_err(dev, "regmap init failed: %ld\n", PTR_ERR(imx274->regmap)); ret = -ENODEV; goto err_regmap; } /* initialize subdevice */ imx274->client = client; sd = &imx274->sd; v4l2_i2c_subdev_init(sd, client, &imx274_subdev_ops); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; /* initialize subdev media pad */ imx274->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &imx274->pad); if (ret < 0) { dev_err(dev, "%s : media entity init Failed %d\n", __func__, ret); goto err_regmap; } /* initialize sensor reset gpio */ imx274->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(imx274->reset_gpio)) { ret = dev_err_probe(dev, PTR_ERR(imx274->reset_gpio), "Reset GPIO not setup in DT\n"); goto err_me; } /* power on the sensor */ ret = imx274_power_on(dev); if (ret < 0) { dev_err(dev, "%s : imx274 power on failed\n", __func__); goto err_me; } /* initialize controls */ ret = v4l2_ctrl_handler_init(&imx274->ctrls.handler, 4); if (ret < 0) { dev_err(dev, "%s : ctrl handler init Failed\n", __func__); goto err_power_off; } imx274->ctrls.handler.lock = &imx274->lock; /* add new controls */ imx274->ctrls.test_pattern = v4l2_ctrl_new_std_menu_items( &imx274->ctrls.handler, &imx274_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(tp_qmenu) - 1, 0, 0, tp_qmenu); imx274->ctrls.gain = v4l2_ctrl_new_std( &imx274->ctrls.handler, &imx274_ctrl_ops, V4L2_CID_GAIN, IMX274_MIN_GAIN, IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN, 1, IMX274_DEF_GAIN); imx274->ctrls.exposure = v4l2_ctrl_new_std( &imx274->ctrls.handler, &imx274_ctrl_ops, V4L2_CID_EXPOSURE, IMX274_MIN_EXPOSURE_TIME, 1000000 / IMX274_DEF_FRAME_RATE, 1, IMX274_MIN_EXPOSURE_TIME); imx274->ctrls.vflip = v4l2_ctrl_new_std( &imx274->ctrls.handler, &imx274_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); imx274->sd.ctrl_handler = &imx274->ctrls.handler; if (imx274->ctrls.handler.error) { ret = imx274->ctrls.handler.error; goto err_ctrls; } /* load default control values */ imx274_load_default(imx274); /* register subdevice */ ret = v4l2_async_register_subdev(sd); if (ret < 0) { dev_err(dev, "%s : v4l2_async_register_subdev failed %d\n", __func__, ret); goto err_ctrls; } pm_runtime_set_active(dev); pm_runtime_enable(dev); pm_runtime_idle(dev); dev_info(dev, "imx274 : imx274 probe success !\n"); return 0; err_ctrls: v4l2_ctrl_handler_free(&imx274->ctrls.handler); err_power_off: imx274_power_off(dev); err_me: media_entity_cleanup(&sd->entity); err_regmap: mutex_destroy(&imx274->lock); return ret; } static void imx274_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct stimx274 *imx274 = to_imx274(sd); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) imx274_power_off(&client->dev); pm_runtime_set_suspended(&client->dev); v4l2_async_unregister_subdev(sd); v4l2_ctrl_handler_free(&imx274->ctrls.handler); media_entity_cleanup(&sd->entity); mutex_destroy(&imx274->lock); } static const struct dev_pm_ops imx274_pm_ops = { SET_RUNTIME_PM_OPS(imx274_power_off, imx274_power_on, NULL) }; static struct i2c_driver imx274_i2c_driver = { .driver = { .name = DRIVER_NAME, .pm = &imx274_pm_ops, .of_match_table = imx274_of_id_table, }, .probe_new = imx274_probe, .remove = imx274_remove, .id_table = imx274_id, }; module_i2c_driver(imx274_i2c_driver); MODULE_AUTHOR("Leon Luo <leonl@leopardimaging.com>"); MODULE_DESCRIPTION("IMX274 CMOS Image Sensor driver"); MODULE_LICENSE("GPL v2"); |