linux-kernel - [PATCH 06/12] drm/amd/display: Constify 'struct edid' in parsing functions

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Message-Id: <20240818-amdgpu-drm_edid-v1-6-aea66c1f7cf4@weissschuh.net>
Date: Sun, 18 Aug 2024 12:43:30 +0200
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Harry Wentland <harry.wentland@....com>, Leo Li <sunpeng.li@....com>, 
 Rodrigo Siqueira <Rodrigo.Siqueira@....com>, 
 Alex Deucher <alexander.deucher@....com>, 
 Christian König <christian.koenig@....com>, 
 Xinhui Pan <Xinhui.Pan@....com>, David Airlie <airlied@...il.com>, 
 Daniel Vetter <daniel@...ll.ch>, jinzh <jinzh@...hub.amd.com>, 
 Aric Cyr <Aric.Cyr@....com>, Alan Liu <HaoPing.Liu@....com>, 
 Tony Cheng <Tony.Cheng@....com>, 
 Andrey Grodzovsky <Andrey.Grodzovsky@....com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, 
 linux-kernel@...r.kernel.org, Harry Wentland <Harry.Wentland@....com>, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 06/12] drm/amd/display: Constify 'struct edid' in parsing
 functions

The parsing functions do not modify their edid argument.
Mark the const to reflect this to the caller.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 +++++++-------
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7d999e352df3..4e7f40481379 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -11834,7 +11834,7 @@ static bool parse_edid_cea(struct amdgpu_dm_connector *aconnector,
 }
 
 static void parse_edid_displayid_vrr(struct drm_connector *connector,
-		struct edid *edid)
+		const struct edid *edid)
 {
 	u8 *edid_ext = NULL;
 	int i;
@@ -11877,7 +11877,7 @@ static void parse_edid_displayid_vrr(struct drm_connector *connector,
 }
 
 static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector,
-			  struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
+			  const struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
 {
 	u8 *edid_ext = NULL;
 	int i;
@@ -11912,7 +11912,7 @@ static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector,
 }
 
 static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
-		struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
+		const struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
 {
 	u8 *edid_ext = NULL;
 	int i;
@@ -11954,12 +11954,12 @@ static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
  * FreeSync parameters.
  */
 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
-				    struct edid *edid)
+				    const struct edid *edid)
 {
 	int i = 0;
-	struct detailed_timing *timing;
-	struct detailed_non_pixel *data;
-	struct detailed_data_monitor_range *range;
+	const struct detailed_timing *timing;
+	const struct detailed_non_pixel *data;
+	const struct detailed_data_monitor_range *range;
 	struct amdgpu_dm_connector *amdgpu_dm_connector =
 			to_amdgpu_dm_connector(connector);
 	struct dm_connector_state *dm_con_state = NULL;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index 2d7755e2b6c3..27c0017707dd 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -951,7 +951,7 @@ void dm_restore_drm_connector_state(struct drm_device *dev,
 				    struct drm_connector *connector);
 
 void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
-					struct edid *edid);
+					const struct edid *edid);
 
 void amdgpu_dm_trigger_timing_sync(struct drm_device *dev);
 

-- 
2.46.0