diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-26 09:49:47 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-02-23 11:13:11 +1000 |
| commit | b1f559ecdc6026ef783ccadc62a61e7da906fcb4 (patch) | |
| tree | 0191b560a045c6490c326ef0c027797ba9886ffa /drivers/gpu/drm/drm_edid.c | |
| parent | 60b212f8ddcdbbfa8595f40300756b9ea8dd387e (diff) | |
drm: Mark constant arrays of drm_display_mode const
... and fixup some methods to accept the constant argument.
Now that constant module arrays are loaded into read-only memory, using
const appropriately has some benefits beyond warning the programmer
about likely mistakes.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index a245d17165a..af60d9be963 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -449,12 +449,11 @@ static void edid_fixup_preferred(struct drm_connector *connector, struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, int vsize, int fresh) { + struct drm_display_mode *mode = NULL; int i; - struct drm_display_mode *ptr, *mode; - mode = NULL; for (i = 0; i < drm_num_dmt_modes; i++) { - ptr = &drm_dmt_modes[i]; + const struct drm_display_mode *ptr = &drm_dmt_modes[i]; if (hsize == ptr->hdisplay && vsize == ptr->vdisplay && fresh == drm_mode_vrefresh(ptr)) { @@ -885,7 +884,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, } static bool -mode_is_rb(struct drm_display_mode *mode) +mode_is_rb(const struct drm_display_mode *mode) { return (mode->htotal - mode->hdisplay == 160) && (mode->hsync_end - mode->hdisplay == 80) && @@ -894,7 +893,8 @@ mode_is_rb(struct drm_display_mode *mode) } static bool -mode_in_hsync_range(struct drm_display_mode *mode, struct edid *edid, u8 *t) +mode_in_hsync_range(const struct drm_display_mode *mode, + struct edid *edid, u8 *t) { int hsync, hmin, hmax; @@ -910,7 +910,8 @@ mode_in_hsync_range(struct drm_display_mode *mode, struct edid *edid, u8 *t) } static bool -mode_in_vsync_range(struct drm_display_mode *mode, struct edid *edid, u8 *t) +mode_in_vsync_range(const struct drm_display_mode *mode, + struct edid *edid, u8 *t) { int vsync, vmin, vmax; @@ -941,7 +942,7 @@ range_pixel_clock(struct edid *edid, u8 *t) } static bool -mode_in_range(struct drm_display_mode *mode, struct edid *edid, +mode_in_range(const struct drm_display_mode *mode, struct edid *edid, struct detailed_timing *timing) { u32 max_clock; @@ -1472,7 +1473,7 @@ int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay) { int i, count, num_modes = 0; - struct drm_display_mode *mode, *ptr; + struct drm_display_mode *mode; struct drm_device *dev = connector->dev; count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode); @@ -1482,7 +1483,7 @@ int drm_add_modes_noedid(struct drm_connector *connector, vdisplay = 0; for (i = 0; i < count; i++) { - ptr = &drm_dmt_modes[i]; + const struct drm_display_mode *ptr = &drm_dmt_modes[i]; if (hdisplay && vdisplay) { /* * Only when two are valid, they will be used to check |