Merge branch 'topic/renesas' into for-linus

Author: Vinod Koul

Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt

@@ -18,6 +18,7 @@ Required Properties:
 	      Examples with soctypes are:
 		- "renesas,dmac-r8a7743" (RZ/G1M)
 		- "renesas,dmac-r8a7745" (RZ/G1E)
+		- "renesas,dmac-r8a77470" (RZ/G1C)
 		- "renesas,dmac-r8a7790" (R-Car H2)
 		- "renesas,dmac-r8a7791" (R-Car M2-W)
 		- "renesas,dmac-r8a7792" (R-Car V2H)
@@ -26,6 +27,7 @@ Required Properties:
 		- "renesas,dmac-r8a7795" (R-Car H3)
 		- "renesas,dmac-r8a7796" (R-Car M3-W)
 		- "renesas,dmac-r8a77970" (R-Car V3M)
+		- "renesas,dmac-r8a77980" (R-Car V3H)
 
 - reg: base address and length of the registers block for the DMAC
 

Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt

@@ -11,6 +11,7 @@ Required Properties:
 	  - "renesas,r8a7794-usb-dmac" (R-Car E2)
 	  - "renesas,r8a7795-usb-dmac" (R-Car H3)
 	  - "renesas,r8a7796-usb-dmac" (R-Car M3-W)
+	  - "renesas,r8a77965-usb-dmac" (R-Car M3-N)
 - reg: base address and length of the registers block for the DMAC
 - interrupts: interrupt specifiers for the DMAC, one for each entry in
   interrupt-names.

drivers/dma/sh/rcar-dmac.c

@@ -1301,8 +1301,17 @@ static unsigned int rcar_dmac_chan_get_residue(struct rcar_dmac_chan *chan,
 	 * If the cookie doesn't correspond to the currently running transfer
 	 * then the descriptor hasn't been processed yet, and the residue is
 	 * equal to the full descriptor size.
+	 * Also, a client driver is possible to call this function before
+	 * rcar_dmac_isr_channel_thread() runs. In this case, the "desc.running"
+	 * will be the next descriptor, and the done list will appear. So, if
+	 * the argument cookie matches the done list's cookie, we can assume
+	 * the residue is zero.
 	 */
 	if (cookie != desc->async_tx.cookie) {
+		list_for_each_entry(desc, &chan->desc.done, node) {
+			if (cookie == desc->async_tx.cookie)
+				return 0;
+		}
 		list_for_each_entry(desc, &chan->desc.pending, node) {
 			if (cookie == desc->async_tx.cookie)
 				return desc->size;
@@ -1677,8 +1686,8 @@ static const struct dev_pm_ops rcar_dmac_pm = {
 	 *   - Wait for the current transfer to complete and stop the device,
 	 *   - Resume transfers, if any.
 	 */
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-				     pm_runtime_force_resume)
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				      pm_runtime_force_resume)
 	SET_RUNTIME_PM_OPS(rcar_dmac_runtime_suspend, rcar_dmac_runtime_resume,
 			   NULL)
 };