From e25bec160158abe86c276d7d206264afc3646281 Mon Sep 17 00:00:00 2001 From: Hema HK Date: Wed, 7 Sep 2011 09:19:24 -0700 Subject: [PATCH] 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 Signed-off-by: Hema HK Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Vikram Pandita Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_core.h | 1 + drivers/usb/musb/omap2430.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index b3c065ab9db..3259a6bbaba 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 ba85f273e48..78eb13a3379 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; -- 2.39.5