Commit 4276d7d2 authored by Kumar Gala's avatar Kumar Gala Committed by Anas Nashif
Browse files

pinmux: hsdk: Convert ARC HSDK pinmux to be devicetree based 



Add a simple pinctrl node for the CREG GPIO MUX register to be used
by the pinmux driver.

Signed-off-by: default avatarKumar Gala <kumar.gala@linaro.org>
parent 147bb6b9

boards/arc/hsdk/pinmux.c

+3 −4
Original line number Diff line number Diff line
@@ -12,11 +12,10 @@ static int board_pinmux_init(const struct device *device) 
{

	ARG_UNUSED(device);



	const struct device *pinmux = device_get_binding(CONFIG_PINMUX_NAME);

	const struct device *pinmux = DEVICE_DT_GET(DT_NODELABEL(pinctrl));



	__ASSERT_NO_MSG(device_is_ready(pinmux));



	if (pinmux == NULL) {

		return -ENXIO;

	}

	/*

	 * to do configuration for each sel,

	 * please refer the doc for hsdk board.

drivers/pinmux/Kconfig

+0 −6
Original line number Diff line number Diff line
@@ -11,12 +11,6 @@ menuconfig PINMUX 


if PINMUX



config PINMUX_NAME

	string "Pinmux driver name"

	default "PINMUX"

	help

	  The name of the pinmux driver.



config PINMUX_INIT_PRIORITY

	int "Init priority"

	default 45

drivers/pinmux/pinmux_hsdk.c

+4 −2
Original line number Diff line number Diff line
@@ -4,12 +4,14 @@ 
 * SPDX-License-Identifier: Apache-2.0

 */



#define DT_DRV_COMPAT snps_creg_gpio_mux_hsdk



#include <errno.h>

#include <device.h>

#include <drivers/pinmux.h>

#include <soc.h>



#define creg_gpio_mux_reg	(*(volatile uint32_t *)CREG_GPIO_MUX_BASE_ADDR)

#define creg_gpio_mux_reg	(*(volatile uint32_t *)DT_INST_REG_ADDR(0))



void _arc_sync(void)

{
@@ -68,7 +70,7 @@ static const struct pinmux_driver_api pinmux_hsdk_driver_api = { 
	.input = pinmux_hsdk_input,

};



DEVICE_DEFINE(pinmux_hsdk, CONFIG_PINMUX_NAME,

DEVICE_DT_INST_DEFINE(0,

		&pinmux_hsdk_init, device_pm_control_nop, NULL, NULL,

		PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,

		&pinmux_hsdk_driver_api);

dts/arc/arc_hsdk.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -66,6 +66,11 @@ 
			reg = <0x90000000 0x50000000>;

		};



		pinctrl: pinctrl@f0001484 {

			compatible = "snps,creg-gpio-mux-hsdk";

			reg = <0xf0001484 0x4>;

		};



		uart0: uart@f0005000 {

			compatible = "ns16550";

			clock-frequency = <33333333>;

dts/bindings/pinctrl/snps,creg-gpio-mux-hsdk.yaml

0 → 100644
+17 −0
Original line number Diff line number Diff line 
# Copyright (c) 2021, Linaro Limited

# SPDX-License-Identifier: Apache-2.0



description: |

  Synopsys CREG HSDK GPIO pin mux



compatible: "snps,creg-gpio-mux-hsdk"



include: base.yaml



properties:

    reg:

      required: true



pinmux-cells:

  - pin

  - function

CRA Git | Maintained and supported by SUSTech CRA and CCSE