2023-05-24 13:02:39

by Henning Schild

Subject: [PATCH v4 2/4] leds: simatic-ipc-leds-gpio: move two extra gpio pins into another table

There are two special pins needed to init the LEDs. We used to have them
at the end of the gpiod_lookup table to give to "leds-gpio". A cleaner
way is to have a dedicated table for the special pins.

Signed-off-by: Henning Schild <[email protected]>
---
drivers/leds/simple/simatic-ipc-leds-gpio.c | 28 ++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)

diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio.c b/drivers/leds/simple/simatic-ipc-leds-gpio.c
index 1a1cfdad6218..0f1fde44e8d9 100644
--- a/drivers/leds/simple/simatic-ipc-leds-gpio.c
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio.c
@@ -16,6 +16,7 @@
#include <linux/platform_data/x86/simatic-ipc-base.h>

static struct gpiod_lookup_table *simatic_ipc_led_gpio_table;
+static struct gpiod_lookup_table *simatic_ipc_led_gpio_table_extra;

static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e = {
.dev_id = "leds-gpio",
@@ -26,6 +27,13 @@ static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e = {
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 58, NULL, 3, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 60, NULL, 4, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 5, GPIO_ACTIVE_LOW),
+ {} /* Terminating entry */
+ },
+};
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e_extra = {
+ .dev_id = NULL, /* Filled during initialization */
+ .table = {
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 56, NULL, 6, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 59, NULL, 7, GPIO_ACTIVE_HIGH),
{} /* Terminating entry */
@@ -41,10 +49,17 @@ static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g = {
GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 3, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-f7188x-2", 4, NULL, 4, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-f7188x-2", 5, NULL, 5, GPIO_ACTIVE_LOW),
+ {} /* Terminating entry */
+ },
+};
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g_extra = {
+ .dev_id = NULL, /* Filled during initialization */
+ .table = {
GPIO_LOOKUP_IDX("gpio-f7188x-3", 6, NULL, 6, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-f7188x-3", 7, NULL, 7, GPIO_ACTIVE_HIGH),
{} /* Terminating entry */
- }
+ },
};

static const struct gpio_led simatic_ipc_gpio_leds[] = {
@@ -66,6 +81,7 @@ static struct platform_device *simatic_leds_pdev;
static int simatic_ipc_leds_gpio_remove(struct platform_device *pdev)
{
gpiod_remove_lookup_table(simatic_ipc_led_gpio_table);
+ gpiod_remove_lookup_table(simatic_ipc_led_gpio_table_extra);
platform_device_unregister(simatic_leds_pdev);

return 0;
@@ -74,6 +90,7 @@ static int simatic_ipc_leds_gpio_remove(struct platform_device *pdev)
static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
{
const struct simatic_ipc_platform *plat = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
struct gpio_desc *gpiod;
int err;

@@ -82,12 +99,14 @@ static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
if (!IS_ENABLED(CONFIG_PINCTRL_BROXTON))
return -ENODEV;
simatic_ipc_led_gpio_table = &simatic_ipc_led_gpio_table_127e;
+ simatic_ipc_led_gpio_table_extra = &simatic_ipc_led_gpio_table_127e_extra;
break;
case SIMATIC_IPC_DEVICE_227G:
if (!IS_ENABLED(CONFIG_GPIO_F7188X))
return -ENODEV;
request_module("gpio-f7188x");
simatic_ipc_led_gpio_table = &simatic_ipc_led_gpio_table_227g;
+ simatic_ipc_led_gpio_table_extra = &simatic_ipc_led_gpio_table_227g_extra;
break;
default:
return -ENODEV;
@@ -103,8 +122,11 @@ static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
goto out;
}

+ simatic_ipc_led_gpio_table_extra->dev_id = dev_name(dev);
+ gpiod_add_lookup_table(simatic_ipc_led_gpio_table_extra);
+
/* PM_BIOS_BOOT_N */
- gpiod = gpiod_get_index(&simatic_leds_pdev->dev, NULL, 6, GPIOD_OUT_LOW);
+ gpiod = gpiod_get_index(dev, NULL, 6, GPIOD_OUT_LOW);
if (IS_ERR(gpiod)) {
err = PTR_ERR(gpiod);
goto out;
@@ -112,7 +134,7 @@ static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
gpiod_put(gpiod);

/* PM_WDT_OUT */
- gpiod = gpiod_get_index(&simatic_leds_pdev->dev, NULL, 7, GPIOD_OUT_LOW);
+ gpiod = gpiod_get_index(dev, NULL, 7, GPIOD_OUT_LOW);
if (IS_ERR(gpiod)) {
err = PTR_ERR(gpiod);
goto out;
--
2.39.3

2023-06-08 17:39:14

by Lee Jones

Subject: Re: [PATCH v4 2/4] leds: simatic-ipc-leds-gpio: move two extra gpio pins into another table

On Wed, 24 May 2023, Henning Schild wrote:

> There are two special pins needed to init the LEDs. We used to have them
> at the end of the gpiod_lookup table to give to "leds-gpio". A cleaner
> way is to have a dedicated table for the special pins.
>
> Signed-off-by: Henning Schild <[email protected]>
> ---
> drivers/leds/simple/simatic-ipc-leds-gpio.c | 28 ++++++++++++++++++---
> 1 file changed, 25 insertions(+), 3 deletions(-)

Applied, thanks

--
Lee Jones [李琼斯]