Commit b6d213fb authored by Linus Walleij's avatar Linus Walleij Committed by Lee Jones
Browse files

mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table 



This converts the DaVinci DM355EVM LEDs to use GPIO descriptor look-ups.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 0f1b1b89

drivers/mfd/dm355evm_msp.c

+50 −26
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <linux/module.h>

#include <linux/err.h>

#include <linux/gpio.h>

#include <linux/gpio/machine.h>

#include <linux/leds.h>

#include <linux/i2c.h>

#include <linux/mfd/dm355evm_msp.h>
@@ -116,6 +117,54 @@ static const u8 msp_gpios[] = { 
	MSP_GPIO(4, SDMMC), MSP_GPIO(3, SDMMC),	/* mmc1 WP, nCD */

};



static struct gpio_led evm_leds[] = {

	{ .name = "dm355evm::ds14",

	  .default_trigger = "heartbeat", },

	{ .name = "dm355evm::ds15",

	  .default_trigger = "mmc0", },

	{ .name = "dm355evm::ds16",

	  /* could also be a CE-ATA drive */

	  .default_trigger = "mmc1", },

	{ .name = "dm355evm::ds17",

	  .default_trigger = "nand-disk", },

	{ .name = "dm355evm::ds18", },

	{ .name = "dm355evm::ds19", },

	{ .name = "dm355evm::ds20", },

	{ .name = "dm355evm::ds21", },

};



static struct gpio_led_platform_data evm_led_data = {

	.num_leds	= ARRAY_SIZE(evm_leds),

	.leds		= evm_leds,

};



static struct gpiod_lookup_table evm_leds_gpio_table = {

	.dev_id = "leds-gpio",

	.table = {

		/*

		 * These GPIOs are on the dm355evm_msp

		 * GPIO chip at index 0..7

		 */

		GPIO_LOOKUP_IDX("dm355evm_msp", 0, NULL,

				0, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 1, NULL,

				1, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 2, NULL,

				2, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 3, NULL,

				3, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 4, NULL,

				4, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 5, NULL,

				5, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 6, NULL,

				6, GPIO_ACTIVE_LOW),

		GPIO_LOOKUP_IDX("dm355evm_msp", 7, NULL,

				7, GPIO_ACTIVE_LOW),

		{ },

	},

};



#define MSP_GPIO_REG(offset)	(msp_gpios[(offset)] >> 3)

#define MSP_GPIO_MASK(offset)	BIT(msp_gpios[(offset)] & 0x07)
@@ -260,32 +309,7 @@ static int add_children(struct i2c_client *client) 


	/* LED output */

	if (msp_has_leds()) {

#define GPIO_LED(l)	.name = l, .active_low = true

		static struct gpio_led evm_leds[] = {

			{ GPIO_LED("dm355evm::ds14"),

				.default_trigger = "heartbeat", },

			{ GPIO_LED("dm355evm::ds15"),

				.default_trigger = "mmc0", },

			{ GPIO_LED("dm355evm::ds16"),

				/* could also be a CE-ATA drive */

				.default_trigger = "mmc1", },

			{ GPIO_LED("dm355evm::ds17"),

				.default_trigger = "nand-disk", },

			{ GPIO_LED("dm355evm::ds18"), },

			{ GPIO_LED("dm355evm::ds19"), },

			{ GPIO_LED("dm355evm::ds20"), },

			{ GPIO_LED("dm355evm::ds21"), },

		};

#undef GPIO_LED



		struct gpio_led_platform_data evm_led_data = {

			.num_leds	= ARRAY_SIZE(evm_leds),

			.leds		= evm_leds,

		};



		for (i = 0; i < ARRAY_SIZE(evm_leds); i++)

			evm_leds[i].gpio = i + dm355evm_msp_gpio.base;



		gpiod_add_lookup_table(&evm_leds_gpio_table);

		/* NOTE:  these are the only fully programmable LEDs

		 * on the board, since GPIO-61/ds22 (and many signals

		 * going to DC7) must be used for AEMIF address lines

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