linux-kernel - [PATCH RESEND 11/13] omapfb: panel-lgphilips-lb035q02: remove backlight GPIO handling

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Message-Id: <20221103-omapfb-gpiod-v1-11-cba1fae5a77c@gmail.com>
Date:   Thu,  3 Nov 2022 20:16:40 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Helge Deller <deller@....de>, Tony Lindgren <tony@...mide.com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Sebastian Reichel <sre@...nel.org>
Cc:     linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-omap@...r.kernel.org, linux-fbdev@...r.kernel.org
Subject: [PATCH RESEND 11/13] omapfb: panel-lgphilips-lb035q02: remove backlight GPIO handling

With f048e8c1d169 ("omapfb: panel-lgphilips-lb035q02: Remove legacy boot
support") it is no longer possible to specify GPIO to control the
backlight. Remove code trying to request and toggle it.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 .../omapfb/displays/panel-lgphilips-lb035q02.c      | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
index 3ce1f9d2e7c4..e69856cb62d5 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
@@ -11,7 +11,7 @@
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/mutex.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <video/omapfb_dss.h>
 
@@ -46,9 +46,6 @@ struct panel_drv_data {
 
 	struct omap_video_timings videomode;
 
-	/* used for non-DT boot, to be removed */
-	int backlight_gpio;
-
 	struct gpio_desc *enable_gpio;
 };
 
@@ -166,9 +163,6 @@ static int lb035q02_enable(struct omap_dss_device *dssdev)
 	if (ddata->enable_gpio)
 		gpiod_set_value_cansleep(ddata->enable_gpio, 1);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 1);
-
 	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 
 	return 0;
@@ -185,9 +179,6 @@ static void lb035q02_disable(struct omap_dss_device *dssdev)
 	if (ddata->enable_gpio)
 		gpiod_set_value_cansleep(ddata->enable_gpio, 0);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 0);
-
 	in->ops.dpi->disable(in);
 
 	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
@@ -250,8 +241,6 @@ static int lb035q02_probe_of(struct spi_device *spi)
 
 	ddata->enable_gpio = gpio;
 
-	ddata->backlight_gpio = -ENOENT;
-
 	in = omapdss_of_find_source_for_first_ep(node);
 	if (IS_ERR(in)) {
 		dev_err(&spi->dev, "failed to find video source\n");
@@ -284,13 +273,6 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
 	if (r)
 		return r;
 
-	if (gpio_is_valid(ddata->backlight_gpio)) {
-		r = devm_gpio_request_one(&spi->dev, ddata->backlight_gpio,
-				GPIOF_OUT_INIT_LOW, "panel backlight");
-		if (r)
-			goto err_gpio;
-	}
-
 	ddata->videomode = lb035q02_timings;
 
 	dssdev = &ddata->dssdev;
@@ -310,7 +292,6 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
 	return 0;
 
 err_reg:
-err_gpio:
 	omap_dss_put_device(ddata->in);
 	return r;
 }

-- 
b4 0.11.0-dev-28747