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Message-Id: <20221103-omapfb-gpiod-v1-8-c3d53ca7988f@gmail.com>
Date: Thu, 3 Nov 2022 15:46:51 -0700
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
Helge Deller <deller@....de>, Tony Lindgren <tony@...mide.com>,
Sebastian Reichel <sre@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH 08/13] omapfb: panel-dpi: remove support for platform data
There are no users of panel_dpi_platform_data in the mainline
kernel so support for it can be removed from the panel driver.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
.../video/fbdev/omap2/omapfb/displays/panel-dpi.c | 83 ++--------------------
include/video/omap-panel-data.h | 21 ------
2 files changed, 7 insertions(+), 97 deletions(-)
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
index ff3d1e8e1e7b..9790053c5877 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-dpi.c
@@ -6,15 +6,13 @@
* Author: Tomi Valkeinen <tomi.valkeinen@...com>
*/
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/of.h>
-#include <linux/of_gpio.h>
#include <video/omapfb_dss.h>
-#include <video/omap-panel-data.h>
#include <video/of_display_timing.h>
struct panel_drv_data {
@@ -25,9 +23,6 @@ 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;
};
@@ -77,9 +72,6 @@ static int panel_dpi_enable(struct omap_dss_device *dssdev)
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;
@@ -93,9 +85,6 @@ static void panel_dpi_disable(struct omap_dss_device *dssdev)
if (!omapdss_device_is_enabled(dssdev))
return;
- if (gpio_is_valid(ddata->backlight_gpio))
- gpio_set_value_cansleep(ddata->backlight_gpio, 0);
-
gpiod_set_value_cansleep(ddata->enable_gpio, 0);
in->ops.dpi->disable(in);
@@ -146,49 +135,6 @@ static struct omap_dss_driver panel_dpi_ops = {
.get_resolution = omapdss_default_get_resolution,
};
-static int panel_dpi_probe_pdata(struct platform_device *pdev)
-{
- const struct panel_dpi_platform_data *pdata;
- struct panel_drv_data *ddata = platform_get_drvdata(pdev);
- struct omap_dss_device *dssdev, *in;
- struct videomode vm;
- int r;
-
- pdata = dev_get_platdata(&pdev->dev);
-
- in = omap_dss_find_output(pdata->source);
- if (in == NULL) {
- dev_err(&pdev->dev, "failed to find video source '%s'\n",
- pdata->source);
- return -EPROBE_DEFER;
- }
-
- ddata->in = in;
-
- ddata->data_lines = pdata->data_lines;
-
- videomode_from_timing(pdata->display_timing, &vm);
- videomode_to_omap_video_timings(&vm, &ddata->videomode);
-
- dssdev = &ddata->dssdev;
- dssdev->name = pdata->name;
-
- r = devm_gpio_request_one(&pdev->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 panel_dpi_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
@@ -205,8 +151,6 @@ static int panel_dpi_probe_of(struct platform_device *pdev)
ddata->enable_gpio = gpio;
- ddata->backlight_gpio = -ENOENT;
-
r = of_get_display_timing(node, "panel-timing", &timing);
if (r) {
dev_err(&pdev->dev, "failed to get video timing\n");
@@ -233,30 +177,18 @@ static int panel_dpi_probe(struct platform_device *pdev)
struct omap_dss_device *dssdev;
int r;
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (ddata == NULL)
return -ENOMEM;
platform_set_drvdata(pdev, ddata);
- if (dev_get_platdata(&pdev->dev)) {
- r = panel_dpi_probe_pdata(pdev);
- if (r)
- return r;
- } else if (pdev->dev.of_node) {
- r = panel_dpi_probe_of(pdev);
- if (r)
- return r;
- } else {
- return -ENODEV;
- }
-
- if (gpio_is_valid(ddata->backlight_gpio)) {
- r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio,
- GPIOF_OUT_INIT_LOW, "panel backlight");
- if (r)
- goto err_gpio;
- }
+ r = panel_dpi_probe_of(pdev);
+ if (r)
+ return r;
dssdev = &ddata->dssdev;
dssdev->dev = &pdev->dev;
@@ -275,7 +207,6 @@ static int panel_dpi_probe(struct platform_device *pdev)
return 0;
err_reg:
-err_gpio:
omap_dss_put_device(ddata->in);
return r;
}
diff --git a/include/video/omap-panel-data.h b/include/video/omap-panel-data.h
index b7733150b55c..18172d7b97d0 100644
--- a/include/video/omap-panel-data.h
+++ b/include/video/omap-panel-data.h
@@ -31,25 +31,4 @@ struct connector_atv_platform_data {
bool invert_polarity;
};
-/**
- * panel_dpi platform data
- * @name: name for this display entity
- * @source: name of the display entity used as a video source
- * @data_lines: number of DPI datalines
- * @display_timing: timings for this panel
- * @backlight_gpio: gpio to enable/disable the backlight (or -1)
- * @enable_gpio: gpio to enable/disable the panel (or -1)
- */
-struct panel_dpi_platform_data {
- const char *name;
- const char *source;
-
- int data_lines;
-
- const struct display_timing *display_timing;
-
- int backlight_gpio;
- int enable_gpio;
-};
-
#endif /* __OMAP_PANEL_DATA_H */
--
b4 0.11.0-dev-5166b
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