drm/bochs: Drop fake gamma support

Only really needed for fbdev emulation at 8bpp. And bochs doesn't do
that. And either way bochs only does 32bit rgb, so this is all pretty
much wasted dead code.

The only consideration is that we need to not set up any gamma size
either.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459331485-28376-5-git-send-email-daniel.vetter@ffwll.ch

diff --git a/drivers/gpu/drm/bochs/bochs_fbdev.c b/drivers/gpu/drm/bochs/bochs_fbdev.c
index 7520bf81fc253387c00c1621cfa0e885ae5e6940..369f11f10c72df5eff55e3cfbfa7be34bf9bdccb 100644 (file)
--- a/drivers/gpu/drm/bochs/bochs_fbdev.c
+++ b/drivers/gpu/drm/bochs/bochs_fbdev.c
@@ -162,22 +162,7 @@ static int bochs_fbdev_destroy(struct bochs_device *bochs)
        return 0;
 }
 
-void bochs_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
-                       u16 blue, int regno)
-{
-}
-
-void bochs_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
-                       u16 *blue, int regno)
-{
-       *red   = regno;
-       *green = regno;
-       *blue  = regno;
-}
-
 static const struct drm_fb_helper_funcs bochs_fb_helper_funcs = {
-       .gamma_set = bochs_fb_gamma_set,
-       .gamma_get = bochs_fb_gamma_get,
        .fb_probe = bochsfb_create,
 };
 

diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index 96926f09e0c9cdcdcaed085edcd7ccf8ebb971ca..89adfd916a7c5b1a78e6a1ec2a9ad2f5e9f4cd48 100644 (file)
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -93,11 +93,6 @@ static void bochs_crtc_commit(struct drm_crtc *crtc)
 {
 }
 
-static void bochs_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
-                                u16 *blue, uint32_t start, uint32_t size)
-{
-}
-
 static int bochs_crtc_page_flip(struct drm_crtc *crtc,
                                struct drm_framebuffer *fb,
                                struct drm_pending_vblank_event *event,
@@ -120,7 +115,6 @@ static int bochs_crtc_page_flip(struct drm_crtc *crtc,
 
 /* These provide the minimum set of functions required to handle a CRTC */
 static const struct drm_crtc_funcs bochs_crtc_funcs = {
-       .gamma_set = bochs_crtc_gamma_set,
        .set_config = drm_crtc_helper_set_config,
        .destroy = drm_crtc_cleanup,
        .page_flip = bochs_crtc_page_flip,
@@ -140,7 +134,6 @@ static void bochs_crtc_init(struct drm_device *dev)
        struct drm_crtc *crtc = &bochs->crtc;
 
        drm_crtc_init(dev, crtc, &bochs_crtc_funcs);
-       drm_mode_crtc_set_gamma_size(crtc, 256);
        drm_crtc_helper_add(crtc, &bochs_helper_funcs);
 }