* Re: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
@ 2025-02-12 3:08 kernel test robot
0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2025-02-12 3:08 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20250209225843.7412-1-mwen@igalia.com>
References: <20250209225843.7412-1-mwen@igalia.com>
TO: Melissa Wen <mwen@igalia.com>
TO: harry.wentland@amd.com
TO: sunpeng.li@amd.com
TO: Rodrigo.Siqueira@amd.com
TO: alexander.deucher@amd.com
TO: christian.koenig@amd.com
TO: Xinhui.Pan@amd.com
TO: airlied@gmail.com
TO: simona@ffwll.ch
TO: alex.hung@amd.com
TO: mwen@igalia.com
TO: mario.limonciello@amd.com
CC: amd-gfx@lists.freedesktop.org
CC: dri-devel@lists.freedesktop.org
CC: kernel-dev@igalia.com
Hi Melissa,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-exynos/exynos-drm-next]
[also build test WARNING on linus/master drm/drm-next v6.14-rc2 next-20250210]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Melissa-Wen/drm-amd-display-restore-edid-reading-from-a-given-i2c-adapter/20250210-070016
base: https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next
patch link: https://lore.kernel.org/r/20250209225843.7412-1-mwen%40igalia.com
patch subject: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: x86_64-randconfig-161-20250211 (https://download.01.org/0day-ci/archive/20250212/202502121000.EBCEdoo9-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202502121000.EBCEdoo9-lkp@intel.com/
New smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7201 amdgpu_dm_connector_funcs_force() warn: variable dereferenced before check 'dc_link' (see line 7187)
Old smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5767 fill_dc_dirty_rects() warn: iterator 'i' not incremented
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:12110 parse_edid_displayid_vrr() warn: variable dereferenced before check 'edid_ext' (see line 12106)
vim +/dc_link +7201 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c
14f04fa4834a515 Alex Deucher 2020-02-04 7178
dae343b343ff741 Arnd Bergmann 2023-05-01 7179 static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
0ba4a784a14592a Alex Hung 2023-04-05 7180 {
0ba4a784a14592a Alex Hung 2023-04-05 7181 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
0ba4a784a14592a Alex Hung 2023-04-05 7182 struct dc_link *dc_link = aconnector->dc_link;
0ba4a784a14592a Alex Hung 2023-04-05 7183 struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
48edb2a4256eedf Melissa Wen 2024-09-27 7184 const struct drm_edid *drm_edid;
be1aae525741575 Melissa Wen 2025-02-09 7185 struct i2c_adapter *ddc;
0ba4a784a14592a Alex Hung 2023-04-05 7186
be1aae525741575 Melissa Wen 2025-02-09 @7187 if (dc_link->aux_mode)
be1aae525741575 Melissa Wen 2025-02-09 7188 ddc = &aconnector->dm_dp_aux.aux.ddc;
be1aae525741575 Melissa Wen 2025-02-09 7189 else
be1aae525741575 Melissa Wen 2025-02-09 7190 ddc = &aconnector->i2c->base;
be1aae525741575 Melissa Wen 2025-02-09 7191
be1aae525741575 Melissa Wen 2025-02-09 7192 drm_edid = drm_edid_read_ddc(connector, ddc);
48edb2a4256eedf Melissa Wen 2024-09-27 7193 drm_edid_connector_update(connector, drm_edid);
48edb2a4256eedf Melissa Wen 2024-09-27 7194 if (!drm_edid) {
0e859faf8670a78 Alex Hung 2023-08-25 7195 DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
0ba4a784a14592a Alex Hung 2023-04-05 7196 return;
0e859faf8670a78 Alex Hung 2023-08-25 7197 }
0ba4a784a14592a Alex Hung 2023-04-05 7198
48edb2a4256eedf Melissa Wen 2024-09-27 7199 aconnector->drm_edid = drm_edid;
0ba4a784a14592a Alex Hung 2023-04-05 7200 /* Update emulated (virtual) sink's EDID */
0ba4a784a14592a Alex Hung 2023-04-05 @7201 if (dc_em_sink && dc_link) {
48edb2a4256eedf Melissa Wen 2024-09-27 7202 // FIXME: Get rid of drm_edid_raw()
48edb2a4256eedf Melissa Wen 2024-09-27 7203 const struct edid *edid = drm_edid_raw(drm_edid);
48edb2a4256eedf Melissa Wen 2024-09-27 7204
0ba4a784a14592a Alex Hung 2023-04-05 7205 memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps));
48edb2a4256eedf Melissa Wen 2024-09-27 7206 memmove(dc_em_sink->dc_edid.raw_edid, edid,
48edb2a4256eedf Melissa Wen 2024-09-27 7207 (edid->extensions + 1) * EDID_LENGTH);
0ba4a784a14592a Alex Hung 2023-04-05 7208 dm_helpers_parse_edid_caps(
0ba4a784a14592a Alex Hung 2023-04-05 7209 dc_link,
0ba4a784a14592a Alex Hung 2023-04-05 7210 &dc_em_sink->dc_edid,
0ba4a784a14592a Alex Hung 2023-04-05 7211 &dc_em_sink->edid_caps);
0ba4a784a14592a Alex Hung 2023-04-05 7212 }
0ba4a784a14592a Alex Hung 2023-04-05 7213 }
0ba4a784a14592a Alex Hung 2023-04-05 7214
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
@ 2025-02-09 22:50 Melissa Wen
2025-02-10 22:18 ` Mario Limonciello
2025-02-12 8:08 ` Dan Carpenter
0 siblings, 2 replies; 5+ messages in thread
From: Melissa Wen @ 2025-02-09 22:50 UTC (permalink / raw)
To: harry.wentland, sunpeng.li, Rodrigo.Siqueira, alexander.deucher,
christian.koenig, Xinhui.Pan, airlied, simona, alex.hung, mwen,
mario.limonciello
Cc: amd-gfx, dri-devel, kernel-dev
When switching to drm_edid, we slightly changed how to get edid by
removing the possibility of getting them from dc_link when in aux
transaction mode. As MST doesn't initialize the connector with
`drm_connector_init_with_ddc()`, restore the original behavior to avoid
functional changes.
Fixes: 48edb2a4256e ("drm/amd/display: switch amdgpu_dm_connector to use struct drm_edid")
Signed-off-by: Melissa Wen <mwen@igalia.com>
---
Hi,
So far, there is no reports about an issue related to this but I noticed
this potential functional change when investigating the previous
freesync problem. I'm not 100% clear if MST takes this path without
initializating connector->ddc, but I propose here to restore the
original behavior to avoid regressions.
Melissa
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 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 a8421c07b160..0cd22a6686a3 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7269,8 +7269,14 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
struct dc_link *dc_link = aconnector->dc_link;
struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
const struct drm_edid *drm_edid;
+ struct i2c_adapter *ddc;
- drm_edid = drm_edid_read(connector);
+ if (dc_link->aux_mode)
+ ddc = &aconnector->dm_dp_aux.aux.ddc;
+ else
+ ddc = &aconnector->i2c->base;
+
+ drm_edid = drm_edid_read_ddc(connector, ddc);
drm_edid_connector_update(connector, drm_edid);
if (!drm_edid) {
DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
@@ -7315,14 +7321,21 @@ static int get_modes(struct drm_connector *connector)
static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
{
struct drm_connector *connector = &aconnector->base;
+ struct dc_link *dc_link = aconnector->dc_link;
struct dc_sink_init_data init_params = {
.link = aconnector->dc_link,
.sink_signal = SIGNAL_TYPE_VIRTUAL
};
const struct drm_edid *drm_edid;
const struct edid *edid;
+ struct i2c_adapter *ddc;
- drm_edid = drm_edid_read(connector);
+ if (dc_link->aux_mode)
+ ddc = &aconnector->dm_dp_aux.aux.ddc;
+ else
+ ddc = &aconnector->i2c->base;
+
+ drm_edid = drm_edid_read_ddc(connector, ddc);
drm_edid_connector_update(connector, drm_edid);
if (!drm_edid) {
DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
--
2.47.2
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
2025-02-09 22:50 Melissa Wen
@ 2025-02-10 22:18 ` Mario Limonciello
2025-02-10 22:53 ` Alex Hung
2025-02-12 8:08 ` Dan Carpenter
1 sibling, 1 reply; 5+ messages in thread
From: Mario Limonciello @ 2025-02-10 22:18 UTC (permalink / raw)
To: Wang, Yu (Charlie)
Cc: amd-gfx, dri-devel, kernel-dev, Melissa Wen, harry.wentland,
sunpeng.li, alexander.deucher, christian.koenig, Xinhui.Pan,
airlied, simona, alex.hung
On 2/9/2025 16:50, Melissa Wen wrote:
> When switching to drm_edid, we slightly changed how to get edid by
> removing the possibility of getting them from dc_link when in aux
> transaction mode. As MST doesn't initialize the connector with
> `drm_connector_init_with_ddc()`, restore the original behavior to avoid
> functional changes.
>
> Fixes: 48edb2a4256e ("drm/amd/display: switch amdgpu_dm_connector to use struct drm_edid")
> Signed-off-by: Melissa Wen <mwen@igalia.com>
> ---
>
>
> Hi,
>
> So far, there is no reports about an issue related to this but I noticed
> this potential functional change when investigating the previous
> freesync problem. I'm not 100% clear if MST takes this path without
> initializating connector->ddc, but I propose here to restore the
> original behavior to avoid regressions.
>
> Melissa
I think this looks reasonable.
Charlie,
Can this get included in this week's promotion tests?
Thanks,
>
>
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 17 +++++++++++++++--
> 1 file changed, 15 insertions(+), 2 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 a8421c07b160..0cd22a6686a3 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -7269,8 +7269,14 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
> struct dc_link *dc_link = aconnector->dc_link;
> struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
> const struct drm_edid *drm_edid;
> + struct i2c_adapter *ddc;
>
> - drm_edid = drm_edid_read(connector);
> + if (dc_link->aux_mode)
> + ddc = &aconnector->dm_dp_aux.aux.ddc;
> + else
> + ddc = &aconnector->i2c->base;
> +
> + drm_edid = drm_edid_read_ddc(connector, ddc);
> drm_edid_connector_update(connector, drm_edid);
> if (!drm_edid) {
> DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
> @@ -7315,14 +7321,21 @@ static int get_modes(struct drm_connector *connector)
> static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
> {
> struct drm_connector *connector = &aconnector->base;
> + struct dc_link *dc_link = aconnector->dc_link;
> struct dc_sink_init_data init_params = {
> .link = aconnector->dc_link,
> .sink_signal = SIGNAL_TYPE_VIRTUAL
> };
> const struct drm_edid *drm_edid;
> const struct edid *edid;
> + struct i2c_adapter *ddc;
>
> - drm_edid = drm_edid_read(connector);
> + if (dc_link->aux_mode)
> + ddc = &aconnector->dm_dp_aux.aux.ddc;
> + else
> + ddc = &aconnector->i2c->base;
> +
> + drm_edid = drm_edid_read_ddc(connector, ddc);
> drm_edid_connector_update(connector, drm_edid);
> if (!drm_edid) {
> DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
2025-02-10 22:18 ` Mario Limonciello
@ 2025-02-10 22:53 ` Alex Hung
0 siblings, 0 replies; 5+ messages in thread
From: Alex Hung @ 2025-02-10 22:53 UTC (permalink / raw)
To: Mario Limonciello, Wang, Yu (Charlie)
Cc: amd-gfx, dri-devel, kernel-dev, Melissa Wen, harry.wentland,
sunpeng.li, alexander.deucher, christian.koenig, Xinhui.Pan,
airlied, simona, Roman Li
On 2/10/25 15:18, Mario Limonciello wrote:
> On 2/9/2025 16:50, Melissa Wen wrote:
>> When switching to drm_edid, we slightly changed how to get edid by
>> removing the possibility of getting them from dc_link when in aux
>> transaction mode. As MST doesn't initialize the connector with
>> `drm_connector_init_with_ddc()`, restore the original behavior to avoid
>> functional changes.
>>
>> Fixes: 48edb2a4256e ("drm/amd/display: switch amdgpu_dm_connector to
>> use struct drm_edid")
>> Signed-off-by: Melissa Wen <mwen@igalia.com>
>> ---
>>
>>
>> Hi,
>>
>> So far, there is no reports about an issue related to this but I noticed
>> this potential functional change when investigating the previous
>> freesync problem. I'm not 100% clear if MST takes this path without
>> initializating connector->ddc, but I propose here to restore the
>> original behavior to avoid regressions.
>>
>> Melissa
>
> I think this looks reasonable.
>
> Charlie,
>
> Can this get included in this week's promotion tests?
I just shared this patch to this week's promoter, Roman, and this patch
will be included in promotion test.
>
> Thanks,
>
>>
>>
>> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 17 +++++++++++++++--
>> 1 file changed, 15 insertions(+), 2 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 a8421c07b160..0cd22a6686a3 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -7269,8 +7269,14 @@ static void
>> amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
>> struct dc_link *dc_link = aconnector->dc_link;
>> struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
>> const struct drm_edid *drm_edid;
>> + struct i2c_adapter *ddc;
>> - drm_edid = drm_edid_read(connector);
>> + if (dc_link->aux_mode)
>> + ddc = &aconnector->dm_dp_aux.aux.ddc;
>> + else
>> + ddc = &aconnector->i2c->base;
>> +
>> + drm_edid = drm_edid_read_ddc(connector, ddc);
>> drm_edid_connector_update(connector, drm_edid);
>> if (!drm_edid) {
>> DRM_ERROR("No EDID found on connector: %s.\n", connector-
>> >name);
>> @@ -7315,14 +7321,21 @@ static int get_modes(struct drm_connector
>> *connector)
>> static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
>> {
>> struct drm_connector *connector = &aconnector->base;
>> + struct dc_link *dc_link = aconnector->dc_link;
>> struct dc_sink_init_data init_params = {
>> .link = aconnector->dc_link,
>> .sink_signal = SIGNAL_TYPE_VIRTUAL
>> };
>> const struct drm_edid *drm_edid;
>> const struct edid *edid;
>> + struct i2c_adapter *ddc;
>> - drm_edid = drm_edid_read(connector);
>> + if (dc_link->aux_mode)
>> + ddc = &aconnector->dm_dp_aux.aux.ddc;
>> + else
>> + ddc = &aconnector->i2c->base;
>> +
>> + drm_edid = drm_edid_read_ddc(connector, ddc);
>> drm_edid_connector_update(connector, drm_edid);
>> if (!drm_edid) {
>> DRM_ERROR("No EDID found on connector: %s.\n", connector-
>> >name);
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
2025-02-09 22:50 Melissa Wen
2025-02-10 22:18 ` Mario Limonciello
@ 2025-02-12 8:08 ` Dan Carpenter
1 sibling, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2025-02-12 8:08 UTC (permalink / raw)
To: oe-kbuild, Melissa Wen, harry.wentland, sunpeng.li,
Rodrigo.Siqueira, alexander.deucher, christian.koenig, Xinhui.Pan,
airlied, simona, alex.hung, mario.limonciello
Cc: lkp, oe-kbuild-all, amd-gfx, dri-devel, kernel-dev
Hi Melissa,
kernel test robot noticed the following build warnings:
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Melissa-Wen/drm-amd-display-restore-edid-reading-from-a-given-i2c-adapter/20250210-070016
base: https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git exynos-drm-next
patch link: https://lore.kernel.org/r/20250209225843.7412-1-mwen%40igalia.com
patch subject: [PATCH] drm/amd/display: restore edid reading from a given i2c adapter
config: x86_64-randconfig-161-20250211 (https://download.01.org/0day-ci/archive/20250212/202502121000.EBCEdoo9-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
| Closes: https://lore.kernel.org/r/202502121000.EBCEdoo9-lkp@intel.com/
New smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7201 amdgpu_dm_connector_funcs_force() warn: variable dereferenced before check 'dc_link' (see line 7187)
Old smatch warnings:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:12110 parse_edid_displayid_vrr() warn: variable dereferenced before check 'edid_ext' (see line 12106)
vim +/dc_link +7201 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c
dae343b343ff741 Arnd Bergmann 2023-05-01 7179 static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
0ba4a784a14592a Alex Hung 2023-04-05 7180 {
0ba4a784a14592a Alex Hung 2023-04-05 7181 struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
0ba4a784a14592a Alex Hung 2023-04-05 7182 struct dc_link *dc_link = aconnector->dc_link;
0ba4a784a14592a Alex Hung 2023-04-05 7183 struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
48edb2a4256eedf Melissa Wen 2024-09-27 7184 const struct drm_edid *drm_edid;
be1aae525741575 Melissa Wen 2025-02-09 7185 struct i2c_adapter *ddc;
0ba4a784a14592a Alex Hung 2023-04-05 7186
be1aae525741575 Melissa Wen 2025-02-09 @7187 if (dc_link->aux_mode)
^^^^^^^^^^^^^^^^^
Unchecked dereference
be1aae525741575 Melissa Wen 2025-02-09 7188 ddc = &aconnector->dm_dp_aux.aux.ddc;
be1aae525741575 Melissa Wen 2025-02-09 7189 else
be1aae525741575 Melissa Wen 2025-02-09 7190 ddc = &aconnector->i2c->base;
be1aae525741575 Melissa Wen 2025-02-09 7191
be1aae525741575 Melissa Wen 2025-02-09 7192 drm_edid = drm_edid_read_ddc(connector, ddc);
48edb2a4256eedf Melissa Wen 2024-09-27 7193 drm_edid_connector_update(connector, drm_edid);
48edb2a4256eedf Melissa Wen 2024-09-27 7194 if (!drm_edid) {
0e859faf8670a78 Alex Hung 2023-08-25 7195 DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
0ba4a784a14592a Alex Hung 2023-04-05 7196 return;
0e859faf8670a78 Alex Hung 2023-08-25 7197 }
0ba4a784a14592a Alex Hung 2023-04-05 7198
48edb2a4256eedf Melissa Wen 2024-09-27 7199 aconnector->drm_edid = drm_edid;
0ba4a784a14592a Alex Hung 2023-04-05 7200 /* Update emulated (virtual) sink's EDID */
0ba4a784a14592a Alex Hung 2023-04-05 @7201 if (dc_em_sink && dc_link) {
^^^^^^^
This code assumes dc_link can be NULL
48edb2a4256eedf Melissa Wen 2024-09-27 7202 // FIXME: Get rid of drm_edid_raw()
48edb2a4256eedf Melissa Wen 2024-09-27 7203 const struct edid *edid = drm_edid_raw(drm_edid);
48edb2a4256eedf Melissa Wen 2024-09-27 7204
0ba4a784a14592a Alex Hung 2023-04-05 7205 memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps));
48edb2a4256eedf Melissa Wen 2024-09-27 7206 memmove(dc_em_sink->dc_edid.raw_edid, edid,
48edb2a4256eedf Melissa Wen 2024-09-27 7207 (edid->extensions + 1) * EDID_LENGTH);
0ba4a784a14592a Alex Hung 2023-04-05 7208 dm_helpers_parse_edid_caps(
0ba4a784a14592a Alex Hung 2023-04-05 7209 dc_link,
0ba4a784a14592a Alex Hung 2023-04-05 7210 &dc_em_sink->dc_edid,
0ba4a784a14592a Alex Hung 2023-04-05 7211 &dc_em_sink->edid_caps);
0ba4a784a14592a Alex Hung 2023-04-05 7212 }
0ba4a784a14592a Alex Hung 2023-04-05 7213 }
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 5+ messages in thread
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2025-02-12 3:08 [PATCH] drm/amd/display: restore edid reading from a given i2c adapter kernel test robot
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2025-02-09 22:50 Melissa Wen
2025-02-10 22:18 ` Mario Limonciello
2025-02-10 22:53 ` Alex Hung
2025-02-12 8:08 ` Dan Carpenter
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