usb: host: xhci: rcar: Add firmware_name selection by soc_device_match()
This patch adds firmware_name selection by soc_device_match() to
use other firmware name in the future. (For now, using the firmware
is the same as before.)
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 0727822..8f78d04 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -13,6 +13,7 @@
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/usb/phy.h>
+#include <linux/sys_soc.h>
#include "xhci.h"
#include "xhci-plat.h"
@@ -67,6 +68,22 @@
#define RCAR_USB3_RX_POL_VAL BIT(21)
#define RCAR_USB3_TX_POL_VAL BIT(4)
+/* For soc_device_attribute */
+#define RCAR_XHCI_FIRMWARE_V2 BIT(0) /* FIRMWARE V2 */
+#define RCAR_XHCI_FIRMWARE_V3 BIT(1) /* FIRMWARE V3 */
+
+static const struct soc_device_attribute rcar_quirks_match[] = {
+ {
+ .soc_id = "r8a7795", .revision = "ES1.*",
+ .data = (void *)RCAR_XHCI_FIRMWARE_V2,
+ },
+ {
+ .soc_id = "r8a7796",
+ .data = (void *)RCAR_XHCI_FIRMWARE_V3,
+ },
+ { /* sentinel */ },
+};
+
static void xhci_rcar_start_gen2(struct usb_hcd *hcd)
{
/* LCLK Select */
@@ -122,9 +139,23 @@
int retval, index, j, time;
int timeout = 10000;
u32 data, val, temp;
+ u32 quirks = 0;
+ const struct soc_device_attribute *attr;
+ const char *firmware_name;
+
+ attr = soc_device_match(rcar_quirks_match);
+ if (attr)
+ quirks = (uintptr_t)attr->data;
+
+ if (quirks & RCAR_XHCI_FIRMWARE_V2)
+ firmware_name = XHCI_RCAR_FIRMWARE_NAME_V2;
+ else if (quirks & RCAR_XHCI_FIRMWARE_V3)
+ firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3;
+ else
+ firmware_name = priv->firmware_name;
/* request R-Car USB3.0 firmware */
- retval = request_firmware(&fw, priv->firmware_name, dev);
+ retval = request_firmware(&fw, firmware_name, dev);
if (retval)
return retval;