linux-kernel - [PATCH v2] drm: Clean up the 1366x768 fixup codes

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Date:   Tue, 17 Jan 2017 17:43:29 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     dri-devel@...ts.freedesktop.org
Cc:     Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>, Daniel Vetter <daniel@...ll.ch>,
        Gustavo Padovan <gustavo@...ovan.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm: Clean up the 1366x768 fixup codes

This is just a cleanup, no functional change.

The fixup code for 1366x768 in drm_mode_create_from_cmdline_mode() is
basically a copy of the existing code in drm_edid.c.  Make the latter
code public so that it can be called from the former function.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
v1->v2: Fix the wrong line removal of drm_mode_set_crtcinfo() call

 drivers/gpu/drm/drm_crtc_internal.h | 3 +++
 drivers/gpu/drm/drm_edid.c          | 6 +++---
 drivers/gpu/drm/drm_modes.c         | 8 ++------
 3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index cdf6860c9d22..01bde7103ad6 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -199,3 +199,6 @@ int drm_mode_cursor2_ioctl(struct drm_device *dev,
 			   void *data, struct drm_file *file_priv);
 int drm_mode_page_flip_ioctl(struct drm_device *dev,
 			     void *data, struct drm_file *file_priv);
+
+/* drm_edid.c */
+void drm_mode_fixup_1366x768(struct drm_display_mode *mode);
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 336be31ff3de..739a19cb27d9 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2152,7 +2152,7 @@ drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
 /* fix up 1366x768 mode from 1368x768;
  * GFT/CVT can't express 1366 width which isn't dividable by 8
  */
-static void fixup_mode_1366x768(struct drm_display_mode *mode)
+void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
 {
 	if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
 		mode->hdisplay = 1366;
@@ -2176,7 +2176,7 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
 		if (!newmode)
 			return modes;
 
-		fixup_mode_1366x768(newmode);
+		drm_mode_fixup_1366x768(newmode);
 		if (!mode_in_range(newmode, edid, timing) ||
 		    !valid_inferred_mode(connector, newmode)) {
 			drm_mode_destroy(dev, newmode);
@@ -2205,7 +2205,7 @@ drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
 		if (!newmode)
 			return modes;
 
-		fixup_mode_1366x768(newmode);
+		drm_mode_fixup_1366x768(newmode);
 		if (!mode_in_range(newmode, edid, timing) ||
 		    !valid_inferred_mode(connector, newmode)) {
 			drm_mode_destroy(dev, newmode);
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index e6b19bc9021a..35bb993ebc39 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1461,12 +1461,8 @@ drm_mode_create_from_cmdline_mode(struct drm_device *dev,
 
 	mode->type |= DRM_MODE_TYPE_USERDEF;
 	/* fix up 1368x768: GFT/CVT can't express 1366 width due to alignment */
-	if (cmd->xres == 1366 && mode->hdisplay == 1368) {
-		mode->hdisplay = 1366;
-		mode->hsync_start--;
-		mode->hsync_end--;
-		drm_mode_set_name(mode);
-	}
+	if (cmd->xres == 1366)
+		drm_mode_fixup_1366x768(mode);
 	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 	return mode;
 }
-- 
2.11.0