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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: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Linus Walleij 2020-08-26 22:21:49 +02:00 committed by Lee Jones
parent 0f1b1b8995
commit b6d213fb0b
1 changed files with 50 additions and 26 deletions
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76
drivers/mfd/dm355evm_msp.c
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@ -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