diff options
| author | Hema HK <hemahk@ti.com> | 2011-09-07 09:19:24 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-12-12 11:51:40 +0200 |
| commit | e25bec160158abe86c276d7d206264afc3646281 (patch) | |
| tree | 3d2286ff2932971b6950207fde1c8f522da2a46e /drivers/usb/musb | |
| parent | ea737554451d9fae1207e84a3d2c495bbfcd3f08 (diff) | |
| download | talos-obmc-linux-e25bec160158abe86c276d7d206264afc3646281.tar.gz talos-obmc-linux-e25bec160158abe86c276d7d206264afc3646281.zip | |
usb: musb: omap2+: save and restore OTG_INTERFSEL
we need to save and restore OTG_INTERFSEL register
else we will be unable to function on resume after
OFF mode.
Reported-by: Devaraj Rangasamy <dev@ti.com>
Signed-off-by: Hema HK <hemahk@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 1 | ||||
| -rw-r--r-- | drivers/usb/musb/omap2430.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index b3c065ab9dbc..3259a6bbaba3 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -311,6 +311,7 @@ struct musb_context_registers { u8 index, testmode; u8 devctl, busctl, misc; + u32 otg_interfsel; struct musb_csr_regs index_regs[MUSB_C_NUM_EPS]; }; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index ba85f273e487..78eb13a33796 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -491,6 +491,9 @@ static int omap2430_runtime_suspend(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); + musb->context.otg_interfsel = musb_readl(musb->mregs, + OTG_INTERFSEL); + omap2430_low_level_exit(musb); otg_set_suspend(musb->xceiv, 1); @@ -503,6 +506,9 @@ static int omap2430_runtime_resume(struct device *dev) struct musb *musb = glue_to_musb(glue); omap2430_low_level_init(musb); + musb_writel(musb->mregs, OTG_INTERFSEL, + musb->context.otg_interfsel); + otg_set_suspend(musb->xceiv, 0); return 0; |
