From: Ville Syrjälä ville.syrjala@linux.intel.com
drm_mode_equal_no_clocks() is like drm_mode_equal() except it doesn't compare the clock or vrefresh values. drm_mode_equal() is now implemented by first doing the clock checks, and then calling drm_mode_equal_no_clocks().
v2: Add missing EXPORT_SYMBOL()
Reviewed-by: Paulo Zanoni paulo.r.zanoni@intel.com Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/drm_modes.c | 22 +++++++++++++++++++++- include/drm/drm_crtc.h | 1 + 2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 04fa6f1..f264d08 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -848,6 +848,26 @@ bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_displ } else if (mode1->clock != mode2->clock) return false;
+ return drm_mode_equal_no_clocks(mode1, mode2); +} +EXPORT_SYMBOL(drm_mode_equal); + +/** + * drm_mode_equal_no_clocks - test modes for equality + * @mode1: first mode + * @mode2: second mode + * + * LOCKING: + * None. + * + * Check to see if @mode1 and @mode2 are equivalent, but + * don't check the pixel clocks. + * + * RETURNS: + * True if the modes are equal, false otherwise. + */ +bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2) +{ if (mode1->hdisplay == mode2->hdisplay && mode1->hsync_start == mode2->hsync_start && mode1->hsync_end == mode2->hsync_end && @@ -863,7 +883,7 @@ bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_displ
return false; } -EXPORT_SYMBOL(drm_mode_equal); +EXPORT_SYMBOL(drm_mode_equal_no_clocks);
/** * drm_mode_validate_size - make sure modes adhere to size constraints diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index b85575b..836438d 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -922,6 +922,7 @@ extern void drm_mode_config_reset(struct drm_device *dev); extern void drm_mode_config_cleanup(struct drm_device *dev); extern void drm_mode_set_name(struct drm_display_mode *mode); extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2); +extern bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2); extern int drm_mode_width(const struct drm_display_mode *mode); extern int drm_mode_height(const struct drm_display_mode *mode);