From 8cc3f23caf4066880f54f636beb3e30b4d383eca Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Wed, 24 Apr 2013 19:07:16 +0300 Subject: drm: Add drm_mode_equal_no_clocks() 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 Signed-off-by: Ville Syrjälä Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_modes.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/drm_modes.c') diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 04fa6f1808d1..f264d08062f0 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 -- cgit v1.2.3-55-g7522