diff options
| author | Rohit Visavalia <rohit.visavalia@amd.com> | 2024-02-16 15:40:43 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2024-02-29 12:46:19 +0300 |
| commit | be318d01a90366029e181068e8857c6252e1fadc (patch) | |
| tree | ec1367e38d693e2c2ab9423ec10f270087bd178e /drivers | |
| parent | bf0390e2c95bf630b22dddc7cde5f83762b658e5 (diff) | |
| download | linux-be318d01a90366029e181068e8857c6252e1fadc.tar.xz | |
drm: xlnx: dp: Reset DisplayPort IP
Assert DisplayPort reset signal before deasserting,
it is to clear out any registers programmed before booting kernel.
Signed-off-by: Rohit Visavalia <rohit.visavalia@amd.com>
Reviewed-by: Vishal Sagar <vishal.sagar@amd.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240216124043.1226713-1-rohit.visavalia@amd.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dp.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 1846c4971fd8..5a40aa1d4283 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -1714,6 +1714,10 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) goto err_free; } + ret = zynqmp_dp_reset(dp, true); + if (ret < 0) + return ret; + ret = zynqmp_dp_reset(dp, false); if (ret < 0) goto err_free; |