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Merge "disp: msm: dsi: add warning message for rx debugfs commands during suspend"

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This commit is contained in:
qctecmdr
2021-06-30 21:31:16 -07:00
committed by Gerrit - the friendly Code Review server
parent fada9dc2ca 38a94cc558
commit bb76263607
1 changed files with 16 additions and 2 deletions
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18
msm/dsi/dsi_display.c
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@@ -998,13 +998,17 @@ static int dsi_display_ctrl_get_host_init_state(struct dsi_display *dsi_display,
{ {
struct dsi_display_ctrl *ctrl; struct dsi_display_ctrl *ctrl;
int i, rc = -EINVAL; int i, rc = -EINVAL;
bool final_state = true;
display_for_each_ctrl(i, dsi_display) { display_for_each_ctrl(i, dsi_display) {
bool ctrl_state = false;
ctrl = &dsi_display->ctrl[i]; ctrl = &dsi_display->ctrl[i];
rc = dsi_ctrl_get_host_engine_init_state(ctrl->ctrl, state); rc = dsi_ctrl_get_host_engine_init_state(ctrl->ctrl, &ctrl_state);
if (rc) final_state &= ctrl_state;
if ((rc) || !(final_state))
break; break;
} }
*state = final_state;
return rc; return rc;
} }
@@ -1201,6 +1205,16 @@ int dsi_display_cmd_receive(void *display, const char *cmd_buf,
} }
rc = dsi_display_ctrl_get_host_init_state(dsi_display, &state); rc = dsi_display_ctrl_get_host_init_state(dsi_display, &state);
/**
* Handle scenario where a command transfer is initiated through
* sysfs interface when device is in suspend state.
*/
if (!rc && !state) {
pr_warn_ratelimited("Command xfer attempted while device is in suspend state\n");
rc = -EPERM;
goto end;
}
if (rc || !state) { if (rc || !state) {
DSI_ERR("[DSI] Invalid host state = %d rc = %d\n", DSI_ERR("[DSI] Invalid host state = %d rc = %d\n",
state, rc); state, rc);