The backlight support is updated to utilise newly added macros and
functions thus simplifying the code.
- Introduced backlight_set_brightness() that can be called with a
NULL backlight_device
- backlight_update_status() can be called with a NULL backlight_device.
Benefit from this by removing helper that otherwise was iffed'ed out
- Use DECLARE_BACKLIGHT_INIT_PLATFORM() when creating backlight devices
- Replace direct access to backlight_properties with get/set methods
No functional changes, but a nice reduction in complexity and code.
v2:
- Use backlight_update_brightness() (Daniel)
-
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Patrik Jakobsson <patrik.r.jakobsson@xxxxxxxxx>
---
drivers/gpu/drm/gma500/backlight.c | 34 +++++-------------------
drivers/gpu/drm/gma500/cdv_device.c | 24 +++++++----------
drivers/gpu/drm/gma500/mdfld_device.c | 9 ++-----
drivers/gpu/drm/gma500/oaktrail_device.c | 10 ++-----
drivers/gpu/drm/gma500/opregion.c | 2 +-
drivers/gpu/drm/gma500/psb_device.c | 10 ++-----
drivers/gpu/drm/gma500/psb_drv.c | 7 +----
7 files changed, 24 insertions(+), 72 deletions(-)
diff --git a/drivers/gpu/drm/gma500/backlight.c b/drivers/gpu/drm/gma500/backlight.c
index 35600d070cb5..40b96d1277be 100644
--- a/drivers/gpu/drm/gma500/backlight.c
+++ b/drivers/gpu/drm/gma500/backlight.c
@@ -13,48 +13,27 @@
#include "intel_bios.h"
#include "power.h"
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-static void do_gma_backlight_set(struct drm_device *dev)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- backlight_update_status(dev_priv->backlight_device);
-}
-#endif
-
void gma_backlight_enable(struct drm_device *dev)
{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
struct drm_psb_private *dev_priv = dev->dev_private;
dev_priv->backlight_enabled = true;
- if (dev_priv->backlight_device) {
- dev_priv->backlight_device->props.brightness = dev_priv->backlight_level;
- do_gma_backlight_set(dev);
- }
-#endif
+ backlight_update_brightness(dev_priv->backlight_device,
+ dev_priv->backlight_level);
}
void gma_backlight_disable(struct drm_device *dev)
{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
struct drm_psb_private *dev_priv = dev->dev_private;
dev_priv->backlight_enabled = false;
- if (dev_priv->backlight_device) {
- dev_priv->backlight_device->props.brightness = 0;
- do_gma_backlight_set(dev);
- }
-#endif
+ backlight_update_brightness(dev_priv->backlight_device, 0);
}
void gma_backlight_set(struct drm_device *dev, int v)
{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
struct drm_psb_private *dev_priv = dev->dev_private;
dev_priv->backlight_level = v;
- if (dev_priv->backlight_device && dev_priv->backlight_enabled) {
- dev_priv->backlight_device->props.brightness = v;
- do_gma_backlight_set(dev);
- }
-#endif
+ if (dev_priv->backlight_enabled)
+ backlight_update_brightness(dev_priv->backlight_device, v);
}
int gma_backlight_init(struct drm_device *dev)
@@ -73,8 +52,7 @@ void gma_backlight_exit(struct drm_device *dev)
#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
struct drm_psb_private *dev_priv = dev->dev_private;
if (dev_priv->backlight_device) {
- dev_priv->backlight_device->props.brightness = 0;
- backlight_update_status(dev_priv->backlight_device);
+ backlight_update_brightness(dev_priv->backlight_device, 0);
backlight_device_unregister(dev_priv->backlight_device);
}
#endif
diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 4d216a0205f2..52ec1b427bf8 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -111,7 +111,7 @@ static int cdv_get_brightness(struct backlight_device *bd)
static int cdv_set_brightness(struct backlight_device *bd)
{
struct drm_device *dev = bl_get_data(bd);
- int level = bd->props.brightness;
+ int level = backlight_get_brightness(bd);
u32 blc_pwm_ctl;
/* Percentage 1-100% being valid */
@@ -145,21 +145,17 @@ static const struct backlight_ops cdv_ops = {
static int cdv_backlight_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
- struct backlight_properties props;
+ DECLARE_BACKLIGHT_INIT_PLATFORM(props, 0, 100);
+ struct backlight_device *bl;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = 100;
- props.type = BACKLIGHT_PLATFORM;
+ bl = backlight_device_register("psb-bl",
+ NULL, (void *)dev, &cdv_ops, &props);
+ if (IS_ERR(bl))
+ return PTR_ERR(bl);
- cdv_backlight_device = backlight_device_register("psb-bl",
- NULL, (void *)dev, &cdv_ops, &props);
- if (IS_ERR(cdv_backlight_device))
- return PTR_ERR(cdv_backlight_device);
-
- cdv_backlight_device->props.brightness =
- cdv_get_brightness(cdv_backlight_device);
- backlight_update_status(cdv_backlight_device);
- dev_priv->backlight_device = cdv_backlight_device;
+ cdv_backlight_device = bl;
+ backlight_update_brightness(bl, cdv_get_brightness(bl));
+ dev_priv->backlight_device = bl;
dev_priv->backlight_enabled = true;
return 0;
}
diff --git a/drivers/gpu/drm/gma500/mdfld_device.c b/drivers/gpu/drm/gma500/mdfld_device.c
index b718efccdcf2..674e6e619d9a 100644
--- a/drivers/gpu/drm/gma500/mdfld_device.c
+++ b/drivers/gpu/drm/gma500/mdfld_device.c
@@ -42,7 +42,7 @@ int mdfld_set_brightness(struct backlight_device *bd)
struct drm_device *dev =
(struct drm_device *)bl_get_data(mdfld_backlight_device);
struct drm_psb_private *dev_priv = dev->dev_private;
- int level = bd->props.brightness;
+ int level = backlight_get_brightness(bd);
DRM_DEBUG_DRIVER("backlight level set to %d\n", level);
@@ -113,12 +113,9 @@ static int device_backlight_init(struct drm_device *dev)
static int mdfld_backlight_init(struct drm_device *dev)
{
- struct backlight_properties props;
+ DECLARE_BACKLIGHT_INIT_PLATFORM(props, BRIGHTNESS_MAX_LEVEL, BRIGHTNESS_MAX_LEVEL);
int ret = 0;
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = BRIGHTNESS_MAX_LEVEL;
- props.type = BACKLIGHT_PLATFORM;
mdfld_backlight_device = backlight_device_register("mdfld-bl",
NULL, (void *)dev, &mdfld_ops, &props);
@@ -129,8 +126,6 @@ static int mdfld_backlight_init(struct drm_device *dev)
if (ret)
return ret;
- mdfld_backlight_device->props.brightness = BRIGHTNESS_MAX_LEVEL;
- mdfld_backlight_device->props.max_brightness = BRIGHTNESS_MAX_LEVEL;
backlight_update_status(mdfld_backlight_device);
return 0;
}
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index ade7e2416a66..52c0f1a35d3f 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -55,7 +55,7 @@ static int oaktrail_set_brightness(struct backlight_device *bd)
{
struct drm_device *dev = bl_get_data(oaktrail_backlight_device);
struct drm_psb_private *dev_priv = dev->dev_private;
- int level = bd->props.brightness;
+ int level = backlight_get_brightness(bd);
u32 blc_pwm_ctl;
u32 max_pwm_blc;
@@ -136,13 +136,9 @@ static const struct backlight_ops oaktrail_ops = {
static int oaktrail_backlight_init(struct drm_device *dev)
{
+ DECLARE_BACKLIGHT_INIT_PLATFORM(props, 100, 100);
struct drm_psb_private *dev_priv = dev->dev_private;
int ret;
- struct backlight_properties props;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = 100;
- props.type = BACKLIGHT_PLATFORM;
oaktrail_backlight_device = backlight_device_register("oaktrail-bl",
NULL, (void *)dev, &oaktrail_ops, &props);
@@ -155,8 +151,6 @@ static int oaktrail_backlight_init(struct drm_device *dev)
backlight_device_unregister(oaktrail_backlight_device);
return ret;
}
- oaktrail_backlight_device->props.brightness = 100;
- oaktrail_backlight_device->props.max_brightness = 100;
backlight_update_status(oaktrail_backlight_device);
dev_priv->backlight_device = oaktrail_backlight_device;
return 0;
diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
index eab6d889bde9..68587cdf6206 100644
--- a/drivers/gpu/drm/gma500/opregion.c
+++ b/drivers/gpu/drm/gma500/opregion.c
@@ -163,7 +163,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
if (bclp > 255)
return ASLE_BACKLIGHT_FAILED;
- gma_backlight_set(dev, bclp * bd->props.max_brightness / 255);
+ gma_backlight_set(dev, bclp * backlight_get_max_brightness(bd) / 255);
asle->cblv = (bclp * 0x64) / 0xff | ASLE_CBLV_VALID;
diff --git a/drivers/gpu/drm/gma500/psb_device.c b/drivers/gpu/drm/gma500/psb_device.c
index ece994c4c21a..857681b860c4 100644
--- a/drivers/gpu/drm/gma500/psb_device.c
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -92,7 +92,7 @@ static int psb_backlight_setup(struct drm_device *dev)
static int psb_set_brightness(struct backlight_device *bd)
{
struct drm_device *dev = bl_get_data(psb_backlight_device);
- int level = bd->props.brightness;
+ int level = backlight_get_brightness(bd);
/* Percentage 1-100% being valid */
if (level < 1)
@@ -110,13 +110,9 @@ static const struct backlight_ops psb_ops = {
static int psb_backlight_init(struct drm_device *dev)
{
+ DECLARE_BACKLIGHT_INIT_PLATFORM(props, 100, 100);
struct drm_psb_private *dev_priv = dev->dev_private;
int ret;
- struct backlight_properties props;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = 100;
- props.type = BACKLIGHT_PLATFORM;
psb_backlight_device = backlight_device_register("psb-bl",
NULL, (void *)dev, &psb_ops, &props);
@@ -129,8 +125,6 @@ static int psb_backlight_init(struct drm_device *dev)
psb_backlight_device = NULL;
return ret;
}
- psb_backlight_device->props.brightness = 100;
- psb_backlight_device->props.max_brightness = 100;
backlight_update_status(psb_backlight_device);
dev_priv->backlight_device = psb_backlight_device;
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 2411eb9827b8..f13d9861e571 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -398,12 +398,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
static inline void get_brightness(struct backlight_device *bd)
{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
- if (bd) {
- bd->props.brightness = bd->ops->get_brightness(bd);
- backlight_update_status(bd);
- }
-#endif
+ backlight_update_brightness(bd, backlight_get_actual_brightness(bd));
}
static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
--
2.25.1
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