From: Hema HK <[email protected]> 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 <[email protected]> Signed-off-by: Hema HK <[email protected]> Signed-off-by: Kishon Vijay Abraham I <[email protected]> Signed-off-by: Vikram Pandita <[email protected]> --- drivers/usb/musb/musb_core.h | 1 + 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 b3c065a..3259a6b 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 ba85f27..78eb13a 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; -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
