In devices using ehci-sh, initialization of the PHY may be necessary.
This adds platform data to ehci-sh and provide function to initialize PHY.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@xxxxxxxxxxx>
CC: Shimoda, Yoshihiro <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
drivers/usb/host/ehci-sh.c | 12 ++++++++++++
include/linux/usb/ehci-sh.h | 29 +++++++++++++++++++++++++++++
2 files changed, 41 insertions(+), 0 deletions(-)
create mode 100644 include/linux/usb/ehci-sh.h
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index 9d9cf47..787b07e 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -11,6 +11,7 @@
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/usb/ehci-sh.h>
struct ehci_sh_priv {
struct clk *iclk, *fclk;
@@ -100,6 +101,7 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
const struct hc_driver *driver = &ehci_sh_hc_driver;
struct resource *res;
struct ehci_sh_priv *priv;
+ struct ehci_sh_platdata *pdata;
struct usb_hcd *hcd;
int irq, ret;
@@ -124,6 +126,13 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
goto fail_create_hcd;
}
+ if (pdev->dev.platform_data == NULL) {
+ dev_err(&pdev->dev, "no platform data\n");
+ ret = -ENODEV;
+ goto fail_create_hcd;
+ }
+ pdata = pdev->dev.platform_data;
+
/* initialize hcd */
hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
@@ -168,6 +177,9 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
clk_enable(priv->fclk);
clk_enable(priv->iclk);
+ if (pdata->phy_init)
+ pdata->phy_init(pdata->clkmode);
+
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to add hcd");
diff --git a/include/linux/usb/ehci-sh.h b/include/linux/usb/ehci-sh.h
new file mode 100644
index 0000000..73a2307
--- /dev/null
+++ b/include/linux/usb/ehci-sh.h
@@ -0,0 +1,29 @@
+/*
+ * EHCI SuperH driver platform data
+ *
+ * Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@xxxxxxxxxxx>
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __LINUX_USB_EHCI_SH_H
+#define __LINUX_USB_EHCI_SH_H
+
+struct ehci_sh_platdata {
+ void (*phy_init)(int); /* Phy init function */
+ int clkmode; /* Set clock mode / 0: internal, 1: external */
+};
+
+#endif /* __LINUX_USB_EHCI_SH_H */
--
1.7.9.1
--
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