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ARM: shmobile: r8a7778: add usb phy power control function

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USB phy initialisation function is needed from not only
USB Host but also USB Function too.
This patch adds usb phy common control function.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Kuninori Morimoto 2013-08-04 17:43:01 -07:00 committed by Simon Horman
parent 84ea52885e
commit f39d35fcc2
2 changed files with 28 additions and 11 deletions
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2
arch/arm/mach-shmobile/include/mach/r8a7778.h
View File

@ -35,4 +35,6 @@ extern void r8a7778_clock_init(void);
extern void r8a7778_init_irq_extpin(int irlm);
extern void r8a7778_pinmux_init(void);
extern int r8a7778_usb_phy_power(bool enable);
#endif /* __ASM_R8A7778_H__ */

37
arch/arm/mach-shmobile/setup-r8a7778.c
View File

@ -95,29 +95,46 @@ static struct sh_timer_config sh_tmu1_platform_data __initdata = {
&sh_tmu##idx##_platform_data, \
sizeof(sh_tmu##idx##_platform_data))
/* USB */
static struct usb_phy *phy;
int r8a7778_usb_phy_power(bool enable)
{
static struct usb_phy *phy = NULL;
int ret = 0;
if (!phy)
phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (IS_ERR(phy)) {
pr_err("kernel doesn't have usb phy driver\n");
return PTR_ERR(phy);
}
if (enable)
ret = usb_phy_init(phy);
else
usb_phy_shutdown(phy);
return ret;
}
/* USB */
static int usb_power_on(struct platform_device *pdev)
{
if (IS_ERR(phy))
return PTR_ERR(phy);
int ret = r8a7778_usb_phy_power(true);
if (ret)
return ret;
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
usb_phy_init(phy);
return 0;
}
static void usb_power_off(struct platform_device *pdev)
{
if (IS_ERR(phy))
if (r8a7778_usb_phy_power(false))
return;
usb_phy_shutdown(phy);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
}
@ -353,8 +370,6 @@ void __init r8a7778_add_standard_devices(void)
void __init r8a7778_init_late(void)
{
phy = usb_get_phy(USB_PHY_TYPE_USB2);
platform_device_register_full(&ehci_info);
platform_device_register_full(&ohci_info);
}