Instead of duplicating common code from panel-simple, use the panel-common
helpers.
Signed-off-by: Sean Paul <seanp...@chromium.org>
---
drivers/gpu/drm/panel/Kconfig | 1 +
drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 79 +++++++------------------
2 files changed, 24 insertions(+), 56 deletions(-)
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index be8590724042..98db78d22a13 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -73,6 +73,7 @@ config DRM_PANEL_SHARP_LQ101R1SX01
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
+ select DRM_PANEL_COMMON
help
Say Y here if you want to enable support for Sharp LQ101R1SX01
TFT-LCD modules. The panel has a 2560x1600 resolution and uses
diff --git a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
index 3cce3ca19601..fb2bf67449ab 100644
--- a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
+++ b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c
@@ -6,11 +6,8 @@
* published by the Free Software Foundation.
*/
-#include <linux/backlight.h>
-#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/regulator/consumer.h>
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
@@ -19,17 +16,17 @@
#include <video/mipi_display.h>
+#include "panel-common.h"
+
struct sharp_panel {
struct drm_panel base;
+ struct panel_common common;
+
/* the datasheet refers to them as DSI-LINK1 and DSI-LINK2 */
struct mipi_dsi_device *link1;
struct mipi_dsi_device *link2;
- struct backlight_device *backlight;
- struct regulator *supply;
-
bool prepared;
- bool enabled;
const struct drm_display_mode *mode;
};
@@ -93,17 +90,7 @@ static int sharp_panel_disable(struct drm_panel *panel)
{
struct sharp_panel *sharp = to_sharp_panel(panel);
- if (!sharp->enabled)
- return 0;
-
- if (sharp->backlight) {
- sharp->backlight->props.power = FB_BLANK_POWERDOWN;
- backlight_update_status(sharp->backlight);
- }
-
- sharp->enabled = false;
-
- return 0;
+ return panel_common_disable(&sharp->common, 0);
}
static int sharp_panel_unprepare(struct drm_panel *panel)
@@ -126,11 +113,13 @@ static int sharp_panel_unprepare(struct drm_panel *panel)
msleep(120);
- regulator_disable(sharp->supply);
+ err = panel_common_unprepare(&sharp->common, 0);
+ if (err < 0)
+ dev_err(panel->dev, "failed common unprepare: %d\n", err);
sharp->prepared = false;
- return 0;
+ return err;
}
static int sharp_setup_symmetrical_split(struct mipi_dsi_device *left,
@@ -176,17 +165,15 @@ static int sharp_panel_prepare(struct drm_panel *panel)
if (sharp->prepared)
return 0;
- err = regulator_enable(sharp->supply);
- if (err < 0)
- return err;
-
/*
* According to the datasheet, the panel needs around 10 ms to fully
* power up. At least another 120 ms is required before exiting sleep
* mode to make sure the panel is ready. Throw in another 20 ms for
* good measure.
*/
- msleep(150);
+ err = panel_common_prepare(&sharp->common, 150);
+ if (err < 0)
+ return err;
err = mipi_dsi_dcs_exit_sleep_mode(sharp->link1);
if (err < 0) {
@@ -252,7 +239,7 @@ static int sharp_panel_prepare(struct drm_panel *panel)
return 0;
poweroff:
- regulator_disable(sharp->supply);
+ panel_common_unprepare(&sharp->common, 0);
return err;
}
@@ -260,17 +247,7 @@ static int sharp_panel_enable(struct drm_panel *panel)
{
struct sharp_panel *sharp = to_sharp_panel(panel);
- if (sharp->enabled)
- return 0;
-
- if (sharp->backlight) {
- sharp->backlight->props.power = FB_BLANK_UNBLANK;
- backlight_update_status(sharp->backlight);
- }
-
- sharp->enabled = true;
-
- return 0;
+ return panel_common_enable(&sharp->common, 0);
}
static const struct drm_display_mode default_mode = {
@@ -324,23 +301,15 @@ MODULE_DEVICE_TABLE(of, sharp_of_match);
static int sharp_panel_add(struct sharp_panel *sharp)
{
- struct device_node *np;
int err;
sharp->mode = &default_mode;
+ sharp->prepared = false;
- sharp->supply = devm_regulator_get(&sharp->link1->dev, "power");
- if (IS_ERR(sharp->supply))
- return PTR_ERR(sharp->supply);
-
- np = of_parse_phandle(sharp->link1->dev.of_node, "backlight", 0);
- if (np) {
- sharp->backlight = of_find_backlight_by_node(np);
- of_node_put(np);
-
- if (!sharp->backlight)
- return -EPROBE_DEFER;
- }
+ err = panel_common_init(&sharp->link1->dev, &sharp->common, "supply",
+ "gpio", "backlight");
+ if (err < 0)
+ return err;
drm_panel_init(&sharp->base);
sharp->base.funcs = &sharp_panel_funcs;
@@ -348,13 +317,12 @@ static int sharp_panel_add(struct sharp_panel *sharp)
err = drm_panel_add(&sharp->base);
if (err < 0)
- goto put_backlight;
+ goto err_panel;
return 0;
-put_backlight:
- if (sharp->backlight)
- put_device(&sharp->backlight->dev);
+err_panel:
+ panel_common_fini(&sharp->common);
return err;
}
@@ -364,8 +332,7 @@ static void sharp_panel_del(struct sharp_panel *sharp)
if (sharp->base.dev)
drm_panel_remove(&sharp->base);
- if (sharp->backlight)
- put_device(&sharp->backlight->dev);
+ panel_common_fini(&sharp->common);
if (sharp->link2)
put_device(&sharp->link2->dev);
--
2.12.0.367.g23dc2f6d3c-goog
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