Re: [RFC PATCH v2 4/9] drm/panel: nv3052c: Wait before entering sleep mode

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 9/18/2023 5:58 AM, John Watts wrote:
The panel needs us to wait 120ms between exiting and entering sleep.
Guarantee that by always waiting 150ms before entering sleep mode.

Hi John,

Same question as the last patch -- is this a fix for something?

Thanks,

Jessica Zhang


Signed-off-by: John Watts <contact@xxxxxxxxxx>
---
  drivers/gpu/drm/panel/panel-newvision-nv3052c.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
index 2526b123b1f5..307335d0f1fc 100644
--- a/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3052c.c
@@ -289,6 +289,9 @@ static int nv3052c_unprepare(struct drm_panel *panel)
  	struct mipi_dbi *dbi = &priv->dbi;
  	int err;
+ /* Wait 150ms in case we just exited sleep mode */
+	msleep(150);
+
  	err = mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE);
  	if (err)
  		dev_err(priv->dev, "Unable to enter sleep mode: %d\n", err);
--
2.42.0




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux