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authorVille Syrjälä <ville.syrjala@linux.intel.com>2013-04-24 20:07:16 +0400
committerDave Airlie <airlied@redhat.com>2013-04-26 04:25:09 +0400
commit8cc3f23caf4066880f54f636beb3e30b4d383eca (patch)
tree2c66a755d1f2c17d6c774aec84b277f632fc82a8 /drivers/gpu/drm/drm_modes.c
parent67af116e4ac0ebbb3d7849a1d3e2344e289dd76d (diff)
downloadlinux-8cc3f23caf4066880f54f636beb3e30b4d383eca.tar.xz
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 <paulo.r.zanoni@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
-rw-r--r--drivers/gpu/drm/drm_modes.c22
1 files changed, 21 insertions, 1 deletions
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