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drm/panel: s6e8aa0: Update calls to gpiod_get*()

PATCH Applied Alexandre Courbot 4 participants 7 messages Oct 23, 2014 – Nov 6, 2014

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#0 lore raw

PATCH 1/1 drm/panel: s6e8aa0: Update calls to gpiod_get*()

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

---
 drivers/gpu/drm/panel/panel-s6e8aa0.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
drivers/gpu/drm/panel/panel-s6e8aa0.c +1 -6
index b5217fe37f02..6427aa187735 100644
@@ -1019,17 +1019,12 @@ static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
 		return ret;
 	}
 
-	ctx->reset_gpio = devm_gpiod_get(dev, "reset");
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(ctx->reset_gpio)) {
 		dev_err(dev, "cannot get reset-gpios %ld\n",
 			PTR_ERR(ctx->reset_gpio));
 		return PTR_ERR(ctx->reset_gpio);
 	}
-	ret = gpiod_direction_output(ctx->reset_gpio, 1);
-	if (ret < 0) {
-		dev_err(dev, "cannot configure reset-gpios %d\n", ret);
-		return ret;
-	}
 
 	ctx->brightness = GAMMA_LEVEL_NUM - 1;
 
Signature · 1 line
2.1.2
#1 lore raw

PATCH 1/1 drm/panel: simple: Update calls to gpiod_get*()

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

---
 drivers/gpu/drm/panel/panel-simple.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)
drivers/gpu/drm/panel/panel-simple.c +2 -9
index 23de22f8c820..83d93062930d 100644
@@ -247,21 +247,14 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
 	if (IS_ERR(panel->supply))
 		return PTR_ERR(panel->supply);
 
-	panel->enable_gpio = devm_gpiod_get_optional(dev, "enable");
+	panel->enable_gpio = devm_gpiod_get_optional(dev, "enable",
+						     GPIOD_OUT_LOW);
 	if (IS_ERR(panel->enable_gpio)) {
 		err = PTR_ERR(panel->enable_gpio);
 		dev_err(dev, "failed to request GPIO: %d\n", err);
 		return err;
 	}
 
-	if (panel->enable_gpio) {
-		err = gpiod_direction_output(panel->enable_gpio, 0);
-		if (err < 0) {
-			dev_err(dev, "failed to setup GPIO: %d\n", err);
-			return err;
-		}
-	}
-
 	backlight = of_parse_phandle(dev->of_node, "backlight", 0);
 	if (backlight) {
 		panel->backlight = of_find_backlight_by_node(backlight);
Signature · 1 line
2.1.2
#2 lore raw

Re: [PATCH] drm/panel: simple: Update calls to gpiod_get*()

Quoted 10 lines · Alexandre Courbot

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

Thierry, are you ok with this patch?

#3 lore raw

Re: [PATCH] drm/panel: simple: Update calls to gpiod_get*()

In reply to Alexandre Courbot
Quoted 9 lines · Alexandre Courbot

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

Quoted 4 lines
---
 drivers/gpu/drm/panel/panel-simple.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

Applied, thanks.

Thierry

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Acked-by on v1 1/1
#4 lore raw
In reply to Alexandre Courbot
Quoted 10 lines · Alexandre Courbot

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

It needs patch "gpio: Fix gpio direction flags not getting set" to work correctly. It is not yet present in drm-next. Beside this:

--
Regards
Andrzej

Quoted 28 lines
---
 drivers/gpu/drm/panel/panel-s6e8aa0.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
drivers/gpu/drm/panel/panel-s6e8aa0.c +1 -6
index b5217fe37f02..6427aa187735 100644
@@ -1019,17 +1019,12 @@ static int s6e8aa0_probe(struct mipi_dsi_device *dsi)
 		return ret;
 	}
 
-	ctx->reset_gpio = devm_gpiod_get(dev, "reset");
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(ctx->reset_gpio)) {
 		dev_err(dev, "cannot get reset-gpios %ld\n",
 			PTR_ERR(ctx->reset_gpio));
 		return PTR_ERR(ctx->reset_gpio);
 	}
-	ret = gpiod_direction_output(ctx->reset_gpio, 1);
-	if (ret < 0) {
-		dev_err(dev, "cannot configure reset-gpios %d\n", ret);
-		return ret;
-	}
 
 	ctx->brightness = GAMMA_LEVEL_NUM - 1;
 
#5 lore raw
Quoted 10 lines · Andrzej Hajda
Quoted 9 lines · Alexandre Courbot

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

Quoted 6 lines
Quoted 1 line

It needs patch "gpio: Fix gpio direction flags not getting set" to work correctly. It is not yet present in drm-next. Beside this:

The required patch is now merged, can we go on with this patch?

#6 lore raw
In reply to Alexandre Courbot
Quoted 9 lines · Alexandre Courbot

Add the new flags argument to calls of (devm_)gpiod_get*() and remove any direction setting code afterwards.

Currently both forms (with or without the flags argument) are valid thanks to transitional macros in <linux/gpio/consumer.h>. These macros will be removed once all consumers are updated and the flags argument will become compulsary.

Quoted 4 lines
---
 drivers/gpu/drm/panel/panel-s6e8aa0.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

Applied, thanks.

Thierry

_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel