samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

disp: msm: dsi: add new function to cleanup post command transfer

Browse Source 
Currently we are always doing command transfer cleanup which includes
disabling command engine, clocks, gdsc and unmasking overflow interrupt
as part of post command transfer function only after CMD DMA wait is
done. Cleanup should also be done if an ESD failure happens before
kickoff of a batch command. Organize code so that command transfer
cleanup can be done irrespective of whether command kickoff is done
or not.

Change-Id: Ieb92daa7f5da62c16c71f1b23ceff20adfbf3621
Signed-off-by: Srihitha Tangudu <quic_tangudu@quicinc.com>
This commit is contained in:
Srihitha Tangudu
2022-12-06 14:29:02 +05:30
committed by Gerrit - the friendly Code Review server
parent 8ef80f7cf4
commit ddb854d52d
3 changed files with 52 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
msm/dsi/dsi_display.c
View File

@@ -3399,7 +3399,8 @@ static int dsi_host_detach(struct mipi_dsi_host *host,
int dsi_host_transfer_sub(struct mipi_dsi_host *host, struct dsi_cmd_desc *cmd)
{
struct dsi_display *display;
int rc = 0;
struct dsi_display_ctrl *ctrl;
int i, rc = 0;
if (!host || !cmd) {
DSI_ERR("Invalid params\n");
@@ -3414,6 +3415,16 @@ int dsi_host_transfer_sub(struct mipi_dsi_host *host, struct dsi_cmd_desc *cmd)
/* Avoid sending DCS commands when ESD recovery is pending */
if (atomic_read(&display->panel->esd_recovery_pending)) {
DSI_DEBUG("ESD recovery pending\n");
display_for_each_ctrl(i, display) {
ctrl = &display->ctrl[i];
if ((!ctrl) || (!ctrl->ctrl))
continue;
if ((ctrl->ctrl->pending_cmd_flags & DSI_CTRL_CMD_FETCH_MEMORY) &&
ctrl->ctrl->cmd_len != 0) {
dsi_ctrl_transfer_cleanup(ctrl->ctrl);
ctrl->ctrl->cmd_len = 0;
}
}
return 0;
}