提交 3063a12b 编写于 作者: F Felipe Balbi

usb: musb: fix PHY power on/off

commi 30a70b02 (usb: musb: fix obex in g_nokia.ko
causing kernel panic) removed phy_power_on()
and phy_power_off() calls from runtime PM callbacks
but it failed to note that the driver depended
on pm_runtime_get_sync() calls to power up the PHY,
thus leaving some platforms without any means to
have a working PHY.

Fix that by enabling the phy during omap2430_musb_init()
and killing it in omap2430_musb_exit().

Fixes: 30a70b02 (usb: musb: fix obex in g_nokia.ko causing kernel panic)
Cc: <stable@vger.kernel.org> # v3.14
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Reported-by: NMichael Scott <hashcode0f@gmail.com>
Tested-by: NMichael Scott <hashcode0f@gmail.com>
Tested-by: NStefan Roese <sr@denx.de>
Reported-by: NRabin Vincent <rabin@rab.in>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
上级 c9eaa447
......@@ -416,6 +416,7 @@ static int omap2430_musb_init(struct musb *musb)
omap_musb_set_mailbox(glue);
phy_init(musb->phy);
phy_power_on(musb->phy);
pm_runtime_put_noidle(musb->controller);
return 0;
......@@ -478,6 +479,7 @@ static int omap2430_musb_exit(struct musb *musb)
del_timer_sync(&musb_idle_timer);
omap2430_low_level_exit(musb);
phy_power_off(musb->phy);
phy_exit(musb->phy);
return 0;
......
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