Loading...
Qualcomm APQ8064 TLMM block Required properties: - compatible: "qcom,apq8064-pinctrl" - reg: Should be the base address and length of the TLMM block. - interrupts: Should be the parent IRQ of the TLMM block. - interrupt-controller: Marks the device node as an interrupt controller. - #interrupt-cells: Should be two. - gpio-controller: Marks the device node as a GPIO controller. - #gpio-cells : Should be two. The first cell is the gpio pin number and the second cell is used for optional parameters. - gpio-ranges: see ../gpio/gpio.txt Optional properties: - gpio-reserved-ranges: see ../gpio/gpio.txt Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for a general description of GPIO and interrupt bindings. Please refer to pinctrl-bindings.txt in this directory for details of the common pinctrl bindings used by client devices, including the meaning of the phrase "pin configuration node". Qualcomm's pin configuration nodes act as a container for an arbitrary number of subnodes. Each of these subnodes represents some desired configuration for a pin, a group, or a list of pins or groups. This configuration can include the mux function to select on those pin(s)/group(s), and various pin configuration parameters, such as pull-up, drive strength, etc. The name of each subnode is not important; all subnodes should be enumerated and processed purely based on their content. Each subnode only affects those parameters that are explicitly listed. In other words, a subnode that lists a mux function but no pin configuration parameters implies no information about any pin configuration parameters. Similarly, a pin subnode that describes a pullup parameter implies no information about e.g. the mux function. The following generic properties as defined in pinctrl-bindings.txt are valid to specify in a pin configuration subnode: pins, function, bias-disable, bias-pull-down, bias-pull-up, drive-strength, output-low, output-high. Non-empty subnodes must specify the 'pins' property. Valid values for pins are: gpio0-gpio89 Valid values for function are: cam_mclk, codec_mic_i2s, codec_spkr_i2s, gp_clk_0a, gp_clk_0b, gp_clk_1a, gp_clk_1b, gp_clk_2a, gp_clk_2b, gpio, gsbi1, gsbi2, gsbi3, gsbi4, gsbi4_cam_i2c, gsbi5, gsbi5_spi_cs1, gsbi5_spi_cs2, gsbi5_spi_cs3, gsbi6, gsbi6_spi_cs1, gsbi6_spi_cs2, gsbi6_spi_cs3, gsbi7, gsbi7_spi_cs1, gsbi7_spi_cs2, gsbi7_spi_cs3, gsbi_cam_i2c, hdmi, mi2s, riva_bt, riva_fm, riva_wlan, sdc2, sdc4, slimbus, spkr_i2s, tsif1, tsif2, usb2_hsic, ps_hold Example: msmgpio: pinctrl@800000 { compatible = "qcom,apq8064-pinctrl"; reg = <0x800000 0x4000>; gpio-controller; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; interrupts = <0 16 0x4>; pinctrl-names = "default"; pinctrl-0 = <&gsbi5_uart_default>; gpio-ranges = <&msmgpio 0 0 90>; gsbi5_uart_default: gsbi5_uart_default { mux { pins = "gpio51", "gpio52"; function = "gsbi5"; }; tx { pins = "gpio51"; drive-strength = <4>; bias-disable; }; rx { pins = "gpio52"; drive-strength = <2>; bias-pull-up; }; }; }; |