From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Let's just calculate the hsync rate on demand. No point in wasting
space storing it and risking the cached value getting out of sync
with reality.
v2: Move drm_mode_hsync() next to its only users
Drop the TODO
Reviewed-by: Emil Velikov <emil.velikov@xxxxxxxxxxxxx> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
Documentation/gpu/todo.rst | 12 ---------
drivers/gpu/drm/drm_edid.c | 8 ++++++
drivers/gpu/drm/drm_modes.c | 26 --------------------
drivers/gpu/drm/i915/display/intel_display.c | 1 -
include/drm/drm_modes.h | 11 ---------
5 files changed, 8 insertions(+), 50 deletions(-)
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 439656f55c5d..658b52f7ffc6 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -347,18 +347,6 @@ Contact: Sean Paul
Level: Starter
-Remove drm_display_mode.hsync
------------------------------
-
-We have drm_mode_hsync() to calculate this from hsync_start/end, since drivers
-shouldn't/don't use this, remove this member to avoid any temptations to use it
-in the future. If there is any debug code using drm_display_mode.hsync, convert
-it to use drm_mode_hsync() instead.
-
-Contact: Sean Paul
-
-Level: Starter
-
connector register/unregister fixes
-----------------------------------
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 43b6ca364daa..3bd95c4b02eb 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2380,6 +2380,14 @@ bad_std_timing(u8 a, u8 b)
(a == 0x20 && b == 0x20);
}
+static int drm_mode_hsync(const struct drm_display_mode *mode)
+{
+ if (mode->htotal <= 0)
+ return 0;
+
+ return DIV_ROUND_CLOSEST(mode->clock, mode->htotal);
+}
+
/**
* drm_mode_std - convert standard mode info (width, height, refresh) into mode
* @connector: connector of for the EDID block
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index d4d64518e11b..fec1c33b3045 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -747,32 +747,6 @@ void drm_mode_set_name(struct drm_display_mode *mode)
}
EXPORT_SYMBOL(drm_mode_set_name);
-/**
- * drm_mode_hsync - get the hsync of a mode
- * @mode: mode
- *
- * Returns:
- * @modes's hsync rate in kHz, rounded to the nearest integer. Calculates the
- * value first if it is not yet set.
- */
-int drm_mode_hsync(const struct drm_display_mode *mode)
-{
- unsigned int calc_val;
-
- if (mode->hsync)
- return mode->hsync;
-
- if (mode->htotal <= 0)
- return 0;
-
- calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
- calc_val += 500; /* round to 1000Hz */
- calc_val /= 1000; /* truncate to kHz */
-
- return calc_val;
-}
-EXPORT_SYMBOL(drm_mode_hsync);
-
/**
* drm_mode_vrefresh - get the vrefresh of a mode
* @mode: mode
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 70ec301fe6e3..5ebb2df5f1f4 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8870,7 +8870,6 @@ void intel_mode_from_pipe_config(struct drm_display_mode *mode,
mode->clock = pipe_config->hw.adjusted_mode.crtc_clock;
- mode->hsync = drm_mode_hsync(mode);
mode->vrefresh = drm_mode_vrefresh(mode);
drm_mode_set_name(mode);
}
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index 99134d4f35eb..730fc31de4fb 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -390,16 +390,6 @@ struct drm_display_mode {
*/
int vrefresh;
- /**
- * @hsync:
- *
- * Horizontal refresh rate, for debug output in human readable form. Not
- * used in a functional way.
- *
- * This value is in kHz.
- */
- int hsync;
-
/**
* @picture_aspect_ratio:
*
@@ -493,7 +483,6 @@ int of_get_drm_display_mode(struct device_node *np,
int index);
void drm_mode_set_name(struct drm_display_mode *mode);
-int drm_mode_hsync(const struct drm_display_mode *mode);
int drm_mode_vrefresh(const struct drm_display_mode *mode);
void drm_mode_get_hv_timing(const struct drm_display_mode *mode,
int *hdisplay, int *vdisplay);
--
2.24.1
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