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usb: ehci-sh: Add PHY init function with platform data

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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@renesas.com>
CC: Shimoda, Yoshihiro <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nobuhiro Iwamatsu 2012-04-12 15:48:49 +09:00 committed by Greg Kroah-Hartman
parent 7af395922a
commit 3e0c70d050
2 changed files with 36 additions and 0 deletions
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8
drivers/usb/host/ehci-sh.c
View File

@ -11,6 +11,7 @@
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/platform_data/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 +126,9 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
goto fail_create_hcd;
}
if (pdev->dev.platform_data != NULL)
pdata = pdev->dev.platform_data;
/* initialize hcd */
hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev,
dev_name(&pdev->dev));
@ -168,6 +173,9 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
clk_enable(priv->fclk);
clk_enable(priv->iclk);
if (pdata && pdata->phy_init)
pdata->phy_init();
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to add hcd");

28
include/linux/platform_data/ehci-sh.h Normal file
View File

@ -0,0 +1,28 @@
/*
* EHCI SuperH driver platform data
*
* Copyright (C) 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* 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 __USB_EHCI_SH_H
#define __USB_EHCI_SH_H
struct ehci_sh_platdata {
void (*phy_init)(void); /* Phy init function */
};
#endif /* __USB_EHCI_SH_H */