drm: Nuke fb->bits_per_pixel
Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8.
Less duplicated information is a good thing.
Note that I didn't put parens around the cpp*8 in the below cocci script,
on account of not wanting spurious parens all over the place. Instead I
did the unsafe way, and tried to look over the entire diff to spot if
any dangerous expressions were produced. I didn't see any.
There are some cases where previously the code did X*bpp/8, so the
division happened after the multiplication. Those are now just X*cpp
so the division effectively happens before the multiplication,
but that is perfectly fine since bpp is always a multiple of 8.
@@
struct drm_framebuffer *FB;
expression E;
@@
drm_helper_mode_fill_fb_struct(...) {
...
- FB->bits_per_pixel = E;
...
}
@@
struct drm_framebuffer *FB;
expression E;
@@
i9xx_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}
@@
struct drm_framebuffer *FB;
expression E;
@@
ironlake_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}
@@
struct drm_framebuffer *FB;
expression E;
@@
skylake_get_initial_plane_config(...) {
...
- FB->bits_per_pixel = E;
...
}
@@
struct drm_framebuffer FB;
expression E;
@@
(
- E * FB.bits_per_pixel / 8
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel / 8
+ FB.format->cpp[0]
|
- E * FB.bits_per_pixel >> 3
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel >> 3
+ FB.format->cpp[0]
|
- (FB.bits_per_pixel + 7) / 8
+ FB.format->cpp[0]
|
- FB.bits_per_pixel
+ FB.format->cpp[0] * 8
|
- FB.format->cpp[0] * 8 != 8
+ FB.format->cpp[0] != 1
)
@@
struct drm_framebuffer *FB;
expression E;
@@
(
- E * FB->bits_per_pixel / 8
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel / 8
+ FB->format->cpp[0]
|
- E * FB->bits_per_pixel >> 3
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel >> 3
+ FB->format->cpp[0]
|
- (FB->bits_per_pixel + 7) / 8
+ FB->format->cpp[0]
|
- FB->bits_per_pixel
+ FB->format->cpp[0] * 8
|
- FB->format->cpp[0] * 8 != 8
+ FB->format->cpp[0] != 1
)
@@
struct drm_plane_state *state;
expression E;
@@
(
- E * state->fb->bits_per_pixel / 8
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel / 8
+ state->fb->format->cpp[0]
|
- E * state->fb->bits_per_pixel >> 3
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel >> 3
+ state->fb->format->cpp[0]
|
- (state->fb->bits_per_pixel + 7) / 8
+ state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel
+ state->fb->format->cpp[0] * 8
|
- state->fb->format->cpp[0] * 8 != 8
+ state->fb->format->cpp[0] != 1
)
@@
@@
- (8 * 8)
+ 8 * 8
@@
struct drm_framebuffer FB;
@@
- (FB.format->cpp[0])
+ FB.format->cpp[0]
@@
struct drm_framebuffer *FB;
@@
- (FB->format->cpp[0])
+ FB->format->cpp[0]
@@
@@
struct drm_framebuffer {
...
- int bits_per_pixel;
...
};
v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent)
v3: Adjusted the semantic patch a bit and regenerated due to code
changes
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index e70364a..606cb40f 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -85,7 +85,7 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
bool check_sync;
struct ast_vbios_enhtable *best = NULL;
- switch (fb->bits_per_pixel) {
+ switch (fb->format->cpp[0] * 8) {
case 8:
vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
color_index = VGAModeIndex - 1;
@@ -208,7 +208,8 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
if (vbios_mode->enh_table->flags & NewModeInfo) {
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
- ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, fb->bits_per_pixel);
+ ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92,
+ fb->format->cpp[0] * 8);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
@@ -400,7 +401,7 @@ static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode
const struct drm_framebuffer *fb = crtc->primary->fb;
u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
- switch (fb->bits_per_pixel) {
+ switch (fb->format->cpp[0] * 8) {
case 8:
jregA0 = 0x70;
jregA3 = 0x01;
@@ -457,7 +458,7 @@ static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode
{
const struct drm_framebuffer *fb = crtc->primary->fb;
- switch (fb->bits_per_pixel) {
+ switch (fb->format->cpp[0] * 8) {
case 8:
break;
default: