OMAPDSS: panel-lgphilips-lb035q02: use gpiod for enable gpio

The new gpiod API supports automatic handling of active-high/active-low
with DT. To make it possible to use that when booting with DT, change
the driver's handling of the enable GPIO to use gpiod.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 18 insertions, 14 deletions

diff --git a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
index 2e6b513222d9..6e6acd696a70 100644
--- a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
@@ -50,9 +50,10 @@ struct panel_drv_data {
 
         struct omap_video_timings videomode;
 
-        int reset_gpio;
+        /* used for non-DT boot, to be removed */
         int backlight_gpio;
-        int enable_gpio;
+
+        struct gpio_desc *enable_gpio;
 };
 
 #define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
@@ -165,8 +166,8 @@ static int lb035q02_enable(struct omap_dss_device *dssdev)
         if (r)
                 return r;
 
-        if (gpio_is_valid(ddata->enable_gpio))
-                gpio_set_value_cansleep(ddata->enable_gpio, 1);
+        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);
@@ -184,8 +185,8 @@ static void lb035q02_disable(struct omap_dss_device *dssdev)
         if (!omapdss_device_is_enabled(dssdev))
                 return;
 
-        if (gpio_is_valid(ddata->enable_gpio))
-                gpio_set_value_cansleep(ddata->enable_gpio, 0);
+        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);
@@ -243,6 +244,7 @@ static int lb035q02_probe_pdata(struct spi_device *spi)
         const struct panel_lb035q02_platform_data *pdata;
         struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
         struct omap_dss_device *dssdev, *in;
+        int r;
 
         pdata = dev_get_platdata(&spi->dev);
 
@@ -260,10 +262,19 @@ static int lb035q02_probe_pdata(struct spi_device *spi)
         dssdev = &ddata->dssdev;
         dssdev->name = pdata->name;
 
-        ddata->enable_gpio = pdata->enable_gpio;
+        r = devm_gpio_request_one(&spi->dev, pdata->enable_gpio,
+                                        GPIOF_OUT_INIT_LOW, "panel enable");
+        if (r)
+                goto err_gpio;
+
+        ddata->enable_gpio = gpio_to_desc(pdata->enable_gpio);
+
         ddata->backlight_gpio = pdata->backlight_gpio;
 
         return 0;
+err_gpio:
+        omap_dss_put_device(ddata->in);
+        return r;
 }
 
 static int lb035q02_panel_spi_probe(struct spi_device *spi)
@@ -288,13 +299,6 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
                 return -ENODEV;
         }
 
-        if (gpio_is_valid(ddata->enable_gpio)) {
-                r = devm_gpio_request_one(&spi->dev, ddata->enable_gpio,
-                                GPIOF_OUT_INIT_LOW, "panel enable");
-                if (r)
-                        goto err_gpio;
-        }
-
         if (gpio_is_valid(ddata->backlight_gpio)) {
                 r = devm_gpio_request_one(&spi->dev, ddata->backlight_gpio,
                                 GPIOF_OUT_INIT_LOW, "panel backlight");