mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
a0e27f51ba
A misspelled 'arbitrary' propagated to quite a few locations in the DT binding documentation for pin-controllers. Fixing by: git grep abitrary | cut -f1 -d: | xargs sed -i 's/abitrary/arbitrary/' Reported-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Rob Herring <robh@kernel.org>
89 lines
2.9 KiB
Plaintext
89 lines
2.9 KiB
Plaintext
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.
|
|
|
|
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, 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>;
|
|
|
|
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;
|
|
};
|
|
};
|
|
};
|