Ajay/Felipe Off usb list not to interfere with your merge req to Gregkh >-----Original Message----- >From: linux-usb-owner@xxxxxxxxxxxxxxx [mailto:linux-usb-owner@xxxxxxxxxxxxxxx] On Behalf Of Felipe >Balbi >Sent: Thursday, January 21, 2010 7:34 AM >To: Greg KH >Cc: Linux USB Mailing List; Linux OMAP Mailing List; Gupta, Ajay Kumar; Gadiyar, Anand; Felipe Balbi >Subject: [PATCH 1/7] usb: musb: Add context save and restore support >Importance: High > >From: Ajay Kumar Gupta <ajay.gupta@xxxxxx> > >Adding support for MUSB register save and restore during system >suspend and resume. > >Changes: > - Added musb_save/restore_context() functions > - Added platform specific musb_platform_save/restore_context() > to handle platform specific jobs. > - Maintaining BlackFin compatibility by adding read/write > functions for registers which are not available in BlackFin > >Tested system suspend and resume on OMAP3EVM board. > >Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx> >Signed-off-by: Ajay Kumar Gupta <ajay.gupta@xxxxxx> >Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxx> >--- > drivers/usb/musb/musb_core.c | 146 ++++++++++++++++++++++++++++++++++++++++++ > drivers/usb/musb/musb_core.h | 39 +++++++++++ > drivers/usb/musb/musb_regs.h | 90 ++++++++++++++++++++++++++ > drivers/usb/musb/omap2430.c | 16 +++++ > 4 files changed, 291 insertions(+), 0 deletions(-) > <snip> >diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c >index 83beeac..15a3f27 100644 >--- a/drivers/usb/musb/omap2430.c >+++ b/drivers/usb/musb/omap2430.c >@@ -255,6 +255,22 @@ int __init musb_platform_init(struct musb *musb) > return 0; > } > >+#ifdef CONFIG_PM >+void musb_platform_save_context(struct musb_context_registers >+ *musb_context) >+{ >+ musb_context->otg_sysconfig = omap_readl(OTG_SYSCONFIG); >+ musb_context->otg_forcestandby = omap_readl(OTG_FORCESTDBY); Any reason not to store: OTG_INTERFSEL Depending on reset value is not a good idea. >+} >+ >+void musb_platform_restore_context(struct musb_context_registers >+ *musb_context) >+{ >+ omap_writel(musb_context->otg_sysconfig, OTG_SYSCONFIG); >+ omap_writel(musb_context->otg_forcestandby, OTG_FORCESTDBY); >+} >+#endif >+ > int musb_platform_suspend(struct musb *musb) > { > u32 l; >-- >1.6.6.rc0 > >-- >To unsubscribe from this list: send the line "unsubscribe linux-usb" in >the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
