From: Linus Walleij <linus.walleij@linaro.org>
To: Sekhar Nori <nsekhar@ti.com>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: davinci: dm644x: Convert LEDs to GPIO descriptor table
Date: Mon, 27 Jul 2020 09:03:42 +0200 [thread overview]
Message-ID: <20200727070342.185436-1-linus.walleij@linaro.org> (raw)
This converts the DaVinci DM644x 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>
---
arch/arm/mach-davinci/board-dm644x-evm.c | 46 +++++++++++++++---------
1 file changed, 30 insertions(+), 16 deletions(-)
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index a5d3708fedf6..69f799e8036a 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -319,17 +319,14 @@ static struct platform_device rtc_dev = {
/* U2 -- LEDs */
static struct gpio_led evm_leds[] = {
- { .name = "DS8", .active_low = 1,
- .default_trigger = "heartbeat", },
- { .name = "DS7", .active_low = 1, },
- { .name = "DS6", .active_low = 1, },
- { .name = "DS5", .active_low = 1, },
- { .name = "DS4", .active_low = 1, },
- { .name = "DS3", .active_low = 1, },
- { .name = "DS2", .active_low = 1,
- .default_trigger = "mmc0", },
- { .name = "DS1", .active_low = 1,
- .default_trigger = "disk-activity", },
+ { .name = "DS8", .default_trigger = "heartbeat", },
+ { .name = "DS7", },
+ { .name = "DS6", },
+ { .name = "DS5", },
+ { .name = "DS4", },
+ { .name = "DS3", },
+ { .name = "DS2", .default_trigger = "mmc0", },
+ { .name = "DS1", .default_trigger = "disk-activity", },
};
static const struct gpio_led_platform_data evm_led_data = {
@@ -337,18 +334,35 @@ static const struct gpio_led_platform_data evm_led_data = {
.leds = evm_leds,
};
+static struct gpiod_lookup_table evm_leds_gpio_table = {
+ .dev_id = "leds-gpio.0",
+ .table = {
+ /*
+ * These GPIOs are on a PCF8574 GPIO expander, which
+ * is in turn named after the I2C device name. This is
+ * device "u2" on I2C bus 1 with address 0x38.
+ */
+ GPIO_LOOKUP_IDX("1-0038", 0, NULL, 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 1, NULL, 1, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 2, NULL, 2, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 3, NULL, 3, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 4, NULL, 4, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 5, NULL, 5, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 6, NULL, 6, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("1-0038", 7, NULL, 7, GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
static struct platform_device *evm_led_dev;
static int
evm_led_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
{
- struct gpio_led *leds = evm_leds;
int status;
- while (ngpio--) {
- leds->gpio = gpio++;
- leds++;
- }
+ /* Add the lookup table */
+ gpiod_add_lookup_table(&evm_leds_gpio_table);
/* what an extremely annoying way to be forced to handle
* device unregistration ...
--
2.26.2
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next reply other threads:[~2020-07-27 7:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 7:03 Linus Walleij [this message]
2020-08-03 19:47 ` [PATCH] ARM: davinci: dm644x: Convert LEDs to GPIO descriptor table Bartosz Golaszewski
2020-08-26 14:30 Linus Walleij
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