lkml.org 
[lkml]   [2018]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v18 04/10] drm/tinydrm: Replace tinydrm_of_find_backlight with of_find_backlight
Remove tinydrm_of_find_backlight from tinydrm-helpers.c. We now have
a generic of_find_backlight defined in backlight.c. Let the callers
of tinydrm_of_find_backlight call of_find_backlight. Also, remove
select BACKLIGHT_LCD_SUPPORT and select BACKLIGHT_CLASS_DEVICE from
tinydrm/Kconfig as it is a hack that is no longer needed.

Signed-off-by: Meghana Madhyastha <meghana.madhyastha@gmail.com>
---
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sean Paul<seanpaul@chromium.org>

drivers/gpu/drm/tinydrm/Kconfig | 2 --
drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c | 40 --------------------------
drivers/gpu/drm/tinydrm/mi0283qt.c | 3 +-
drivers/gpu/drm/tinydrm/st7735r.c | 3 +-
include/drm/tinydrm/tinydrm-helpers.h | 2 --
5 files changed, 4 insertions(+), 46 deletions(-)

diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig
index b0e567d41..13339be84 100644
--- a/drivers/gpu/drm/tinydrm/Kconfig
+++ b/drivers/gpu/drm/tinydrm/Kconfig
@@ -3,8 +3,6 @@ menuconfig DRM_TINYDRM
depends on DRM
select DRM_KMS_HELPER
select DRM_KMS_CMA_HELPER
- select BACKLIGHT_LCD_SUPPORT
- select BACKLIGHT_CLASS_DEVICE
help
Choose this option if you have a tinydrm supported display.
If M is selected the module will be called tinydrm.
diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
index 7326e1758..d1c3ce9ab 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c
@@ -236,46 +236,6 @@ void tinydrm_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
}
EXPORT_SYMBOL(tinydrm_xrgb8888_to_gray8);

-/**
- * tinydrm_of_find_backlight - Find backlight device in device-tree
- * @dev: Device
- *
- * This function looks for a DT node pointed to by a property named 'backlight'
- * and uses of_find_backlight_by_node() to get the backlight device.
- * Additionally if the brightness property is zero, it is set to
- * max_brightness.
- *
- * Returns:
- * NULL if there's no backlight property.
- * Error pointer -EPROBE_DEFER if the DT node is found, but no backlight device
- * is found.
- * If the backlight device is found, a pointer to the structure is returned.
- */
-struct backlight_device *tinydrm_of_find_backlight(struct device *dev)
-{
- struct backlight_device *backlight;
- struct device_node *np;
-
- np = of_parse_phandle(dev->of_node, "backlight", 0);
- if (!np)
- return NULL;
-
- backlight = of_find_backlight_by_node(np);
- of_node_put(np);
-
- if (!backlight)
- return ERR_PTR(-EPROBE_DEFER);
-
- if (!backlight->props.brightness) {
- backlight->props.brightness = backlight->props.max_brightness;
- DRM_DEBUG_KMS("Backlight brightness set to %d\n",
- backlight->props.brightness);
- }
-
- return backlight;
-}
-EXPORT_SYMBOL(tinydrm_of_find_backlight);
-
#if IS_ENABLED(CONFIG_SPI)

/**
diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c b/drivers/gpu/drm/tinydrm/mi0283qt.c
index 79cb5af5a..a8aafce36 100644
--- a/drivers/gpu/drm/tinydrm/mi0283qt.c
+++ b/drivers/gpu/drm/tinydrm/mi0283qt.c
@@ -9,6 +9,7 @@
* (at your option) any later version.
*/

+#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
@@ -195,7 +196,7 @@ static int mi0283qt_probe(struct spi_device *spi)
if (IS_ERR(mipi->regulator))
return PTR_ERR(mipi->regulator);

- mipi->backlight = tinydrm_of_find_backlight(dev);
+ mipi->backlight = of_find_backlight(dev);
if (IS_ERR(mipi->backlight))
return PTR_ERR(mipi->backlight);

diff --git a/drivers/gpu/drm/tinydrm/st7735r.c b/drivers/gpu/drm/tinydrm/st7735r.c
index 08b4fb18e..2e6b7b8ec 100644
--- a/drivers/gpu/drm/tinydrm/st7735r.c
+++ b/drivers/gpu/drm/tinydrm/st7735r.c
@@ -5,6 +5,7 @@
* Copyright 2017 David Lechner <david@lechnology.com>
*/

+#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/dma-buf.h>
#include <linux/gpio/consumer.h>
@@ -163,7 +164,7 @@ static int st7735r_probe(struct spi_device *spi)
return PTR_ERR(dc);
}

- mipi->backlight = tinydrm_of_find_backlight(dev);
+ mipi->backlight = of_find_backlight(dev);
if (IS_ERR(mipi->backlight))
return PTR_ERR(mipi->backlight);

diff --git a/include/drm/tinydrm/tinydrm-helpers.h b/include/drm/tinydrm/tinydrm-helpers.h
index f54fae03e..0a4ddbc04 100644
--- a/include/drm/tinydrm/tinydrm-helpers.h
+++ b/include/drm/tinydrm/tinydrm-helpers.h
@@ -46,8 +46,6 @@ void tinydrm_xrgb8888_to_rgb565(u16 *dst, void *vaddr,
void tinydrm_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb,
struct drm_clip_rect *clip);

-struct backlight_device *tinydrm_of_find_backlight(struct device *dev);
-
size_t tinydrm_spi_max_transfer_size(struct spi_device *spi, size_t max_len);
bool tinydrm_spi_bpw_supported(struct spi_device *spi, u8 bpw);
int tinydrm_spi_transfer(struct spi_device *spi, u32 speed_hz,
--
2.11.0
\
 
 \ /
  Last update: 2018-01-22 15:52    [W:0.167 / U:5.288 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site