usb: host: xhci: rcar: add a new firmware version for r8a7796

This patch adds a new firmware version "V3" for r8a7796. This patch
also adds explanation of each version's information.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index 0e4535e632ec9e147b075438bb2ba79c79b44e37..ced4a76330ce3e3ec851f6d72bea168af7ebfbb5 100644 (file)
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -19,6 +19,8 @@
 #include "xhci-rcar.h"
 
 /*
+* - The V3 firmware is for r8a7796 (with good performance).
+* - The V2 firmware can be used on both r8a7795 (es1.x) and r8a7796.
 * - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes
 *   performance degradation. So, this driver continues to use the V1 if R-Car
 *   Gen2.
@@ -26,6 +28,7 @@
 */
 MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V1);
 MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2);
+MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V3);
 
 /*** Register Offset ***/
 #define RCAR_USB3_INT_ENA      0x224   /* Interrupt Enable */

diff --git a/drivers/usb/host/xhci-rcar.h b/drivers/usb/host/xhci-rcar.h
index 2941a25cfe9895f60d167a161ac2d983c7c7213d..d2ffe20401cf9f372bbcc0be4a7443e0e3b92b60 100644 (file)
--- a/drivers/usb/host/xhci-rcar.h
+++ b/drivers/usb/host/xhci-rcar.h
@@ -13,6 +13,7 @@
 
 #define XHCI_RCAR_FIRMWARE_NAME_V1     "r8a779x_usb3_v1.dlmem"
 #define XHCI_RCAR_FIRMWARE_NAME_V2     "r8a779x_usb3_v2.dlmem"
+#define XHCI_RCAR_FIRMWARE_NAME_V3     "r8a779x_usb3_v3.dlmem"
 
 #if IS_ENABLED(CONFIG_USB_XHCI_RCAR)
 void xhci_rcar_start(struct usb_hcd *hcd);