redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

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);
}