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

msm/dsi/dsi_ctrl.c

@@ -429,10 +429,7 @@ static void dsi_ctrl_clear_dma_status(struct dsi_ctrl *dsi_ctrl)
 
 static void dsi_ctrl_post_cmd_transfer(struct dsi_ctrl *dsi_ctrl)
 {
-	int rc = 0;
 	struct dsi_ctrl_hw_ops dsi_hw_ops = dsi_ctrl->hw.ops;
-	struct dsi_clk_ctrl_info clk_info;
-	u32 mask = BIT(DSI_FIFO_OVERFLOW);
 
 	mutex_lock(&dsi_ctrl->ctrl_lock);
 
@@ -451,26 +448,9 @@ static void dsi_ctrl_post_cmd_transfer(struct dsi_ctrl *dsi_ctrl)
 		dsi_hw_ops.reset_trig_ctrl(&dsi_ctrl->hw,
 				&dsi_ctrl->host_config.common_config);
 
-	/* Command engine disable, unmask overflow, remove vote on clocks and gdsc */
-	rc = dsi_ctrl_set_cmd_engine_state(dsi_ctrl, DSI_CTRL_ENGINE_OFF, false);
-	if (rc)
-		DSI_CTRL_ERR(dsi_ctrl, "failed to disable command engine\n");
-
-	if (!(dsi_ctrl->pending_cmd_flags & DSI_CTRL_CMD_READ))
-		dsi_ctrl_mask_error_status_interrupts(dsi_ctrl, mask, false);
-
 	mutex_unlock(&dsi_ctrl->ctrl_lock);
 
-	clk_info.client = DSI_CLK_REQ_DSI_CLIENT;
+	dsi_ctrl_transfer_cleanup(dsi_ctrl);
-	clk_info.clk_type = DSI_ALL_CLKS;
-	clk_info.clk_state = DSI_CLK_OFF;
-
-	rc = dsi_ctrl->clk_cb.dsi_clk_cb(dsi_ctrl->clk_cb.priv, clk_info);
-	if (rc)
-		DSI_CTRL_ERR(dsi_ctrl, "failed to disable clocks\n");
-
-	(void)pm_runtime_put_sync(dsi_ctrl->drm_dev->dev);
-
 }
 
 static void dsi_ctrl_post_cmd_transfer_work(struct work_struct *work)
@@ -3524,6 +3504,37 @@ int dsi_ctrl_cmd_transfer(struct dsi_ctrl *dsi_ctrl, struct dsi_cmd_desc *cmd)
 	return rc;
 }
 
+void dsi_ctrl_transfer_cleanup(struct dsi_ctrl *dsi_ctrl)
+{
+	int rc = 0;
+	struct dsi_clk_ctrl_info clk_info;
+	u32 mask = BIT(DSI_FIFO_OVERFLOW);
+
+	mutex_lock(&dsi_ctrl->ctrl_lock);
+
+	SDE_EVT32(SDE_EVTLOG_FUNC_ENTRY, dsi_ctrl->cell_index, dsi_ctrl->pending_cmd_flags);
+
+	/* Command engine disable, unmask overflow, remove vote on clocks and gdsc */
+	rc = dsi_ctrl_set_cmd_engine_state(dsi_ctrl, DSI_CTRL_ENGINE_OFF, false);
+	if (rc)
+		DSI_CTRL_ERR(dsi_ctrl, "failed to disable command engine\n");
+
+	if (!(dsi_ctrl->pending_cmd_flags & DSI_CTRL_CMD_READ))
+		dsi_ctrl_mask_error_status_interrupts(dsi_ctrl, mask, false);
+
+	mutex_unlock(&dsi_ctrl->ctrl_lock);
+
+	clk_info.client = DSI_CLK_REQ_DSI_CLIENT;
+	clk_info.clk_type = DSI_ALL_CLKS;
+	clk_info.clk_state = DSI_CLK_OFF;
+
+	rc = dsi_ctrl->clk_cb.dsi_clk_cb(dsi_ctrl->clk_cb.priv, clk_info);
+	if (rc)
+		DSI_CTRL_ERR(dsi_ctrl, "failed to disable clocks\n");
+
+	(void)pm_runtime_put_sync(dsi_ctrl->drm_dev->dev);
+}
+
 /**
  * dsi_ctrl_transfer_unprepare() - Clean up post a command transfer
  * @dsi_ctrl:                 DSI controller handle.
@@ -3540,13 +3551,13 @@ void dsi_ctrl_transfer_unprepare(struct dsi_ctrl *dsi_ctrl, u32 flags)
 	if (!dsi_ctrl)
 		return;
 
+	dsi_ctrl->pending_cmd_flags = flags;
+
 	if (!(flags & DSI_CTRL_CMD_LAST_COMMAND))
 		return;
 
 	SDE_EVT32(SDE_EVTLOG_FUNC_ENTRY, dsi_ctrl->cell_index, flags);
 
-	dsi_ctrl->pending_cmd_flags = flags;
-
 	if (flags & DSI_CTRL_CMD_ASYNC_WAIT) {
 		dsi_ctrl->post_tx_queued = true;
 		queue_work(dsi_ctrl->post_cmd_tx_workq, &dsi_ctrl->post_cmd_tx_work);

msm/dsi/dsi_ctrl.h

@@ -946,4 +946,10 @@ int dsi_ctrl_get_io_resources(struct msm_io_res *io_res);
  * dsi_ctrl_toggle_error_interrupt_status() - Toggles error interrupt status
  */
 void dsi_ctrl_toggle_error_interrupt_status(struct dsi_ctrl *dsi_ctrl, bool enable);
+
+/**
+ * dsi_ctrl_transfer_cleanup() - Clean up post command transfer
+ * @dsi_ctrl:                 DSI controller handle.
+ */
+void dsi_ctrl_transfer_cleanup(struct dsi_ctrl *dsi_ctrl);
 #endif /* _DSI_CTRL_H_ */

msm/dsi/dsi_display.c

@@ -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;
 	}