Re: [PATCH 1/5] drm: Include <linux/backlight.h> where needed

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Am 09.01.23 um 11:12 schrieb Thomas Zimmermann:
Include <linux/backlight.h> in source files that need it. Some of
DRM's source code gets the backlight header via drm_crtc_helper.h
and <linux/fb.h>, which can leed to unnecessary recompilation. If
possible, do not include drm_crtc_helper.h any longer.

Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx> for the amdgpu parts.

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c          | 2 +-
  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
  drivers/gpu/drm/gma500/backlight.c                | 2 ++
  drivers/gpu/drm/radeon/radeon_acpi.c              | 2 +-
  4 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 57b5e11446c6..f29c1d0ad4c1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -24,6 +24,7 @@
#include <linux/pci.h>
  #include <linux/acpi.h>
+#include <linux/backlight.h>
  #include <linux/slab.h>
  #include <linux/power_supply.h>
  #include <linux/pm_runtime.h>
@@ -31,7 +32,6 @@
  #include <acpi/video.h>
  #include <acpi/actbl.h>
-#include <drm/drm_crtc_helper.h>
  #include "amdgpu.h"
  #include "amdgpu_pm.h"
  #include "amdgpu_display.h"
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 1b7f20a9d4ae..55a845eb0c6d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -67,6 +67,7 @@
  #include "ivsrcid/ivsrcid_vislands30.h"
#include "i2caux_interface.h"
+#include <linux/backlight.h>
  #include <linux/module.h>
  #include <linux/moduleparam.h>
  #include <linux/types.h>
diff --git a/drivers/gpu/drm/gma500/backlight.c b/drivers/gpu/drm/gma500/backlight.c
index 577a4987b193..8711a7a5b8da 100644
--- a/drivers/gpu/drm/gma500/backlight.c
+++ b/drivers/gpu/drm/gma500/backlight.c
@@ -7,6 +7,8 @@
   * Authors: Eric Knopp
   */
+#include <linux/backlight.h>
+
  #include <acpi/video.h>
#include "psb_drv.h"
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c
index b603c0b77075..5771d1fcb073 100644
--- a/drivers/gpu/drm/radeon/radeon_acpi.c
+++ b/drivers/gpu/drm/radeon/radeon_acpi.c
@@ -22,6 +22,7 @@
   */
#include <linux/acpi.h>
+#include <linux/backlight.h>
  #include <linux/pci.h>
  #include <linux/pm_runtime.h>
  #include <linux/power_supply.h>
@@ -30,7 +31,6 @@
  #include <acpi/acpi_bus.h>
  #include <acpi/video.h>
-#include <drm/drm_crtc_helper.h>
  #include <drm/drm_probe_helper.h>
#include "atom.h"




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