Hi,
Sorry, my email client removed every tab. I will send the v2 in a new
thread.
Thanks.
Matthieu
On Thu, Jul 14 2022 at 11:23:10 AM -0300, André Almeida
<andrealmeid@xxxxxxxxxx> wrote:
Hi Matthieu,
Thanks for your patch.
Às 11:58 de 06/07/22, Matthieu CHARETTE escreveu:
Loading an EDID using drm.edid_firmware parameter makes resume to
fail
after firmware cache is being cleaned. This is because edid_load()
use a
temporary device to request the firmware. This cause the EDID
firmware
not to be cached from suspend. And, requesting the EDID firmware
return
an error during resume.
So the request_firmware() call should use a permanent device for
each
connector. Also, we should cache the EDID even if no monitor is
connected, in case it's plugged while suspended.
Signed-off-by: Matthieu CHARETTE <matthieu.charette@xxxxxxxxx>
---
drivers/gpu/drm/drm_connector.c | 9 ++++
drivers/gpu/drm/drm_edid_load.c | 81
++++++++++++++++++++++++++++-----
include/drm/drm_connector.h | 12 +++++
include/drm/drm_edid.h | 3 ++
4 files changed, 94 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/drm_connector.c
b/drivers/gpu/drm/drm_connector.c
index 1c48d162c77e..e8819ebf1c4b 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -31,6 +31,7 @@
#include <drm/drm_privacy_screen_consumer.h>
#include <drm/drm_sysfs.h>
+#include <linux/platform_device.h>
#include <linux/uaccess.h>
#include "drm_crtc_internal.h"
@@ -289,6 +290,9 @@ int drm_connector_init(struct drm_device *dev,
drm_connector_get_cmdline_mode(connector);
+ connector->edid_load_pdev = NULL;
+ drm_cache_edid_firmware(connector);
+
/* We should add connectors at the end to avoid upsetting the
connector
* index too much.
*/
@@ -473,6 +477,11 @@ void drm_connector_cleanup(struct drm_connector
*connector)
connector->tile_group = NULL;
}
+ if (connector->edid_load_pdev) {
+ platform_device_unregister(connector->edid_load_pdev);
+ connector->edid_load_pdev = NULL;
+ }
+
The indentation of your patch is wrong in different places, like in
this
if here. It should be like
+ if (connector->edid_load_pdev) {
+ platform_device_unregister(connector->edid_load_pdev);
+ connector->edid_load_pdev = NULL;
+ }
./scripts/checkpatch.pl can help you detect those issues for your v2
Thanks,
André
