usb: musb: Remove platform context save/restore API

For OMAP3 and OMAP4 for offmode and retention support, musb
sysconfig is configured to force idle and standby with ENABLE_FORCE bit
of OTG_FORCESTNDBY set.
And on wakeup configure to no ilde/standby with resetting the ENABLE_FORCE
bit. There is not need to save and restore of this register anymore
so removed omap2430_save_context/omap2430_restore_context functions.
and also removed otg_forcestandby member of musb_context_registers
structure

Signed-off-by: Hema HK <hemahk@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 5216729..5cb50f8 100644 (file)
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -358,10 +358,6 @@ struct musb_csr_regs {
 
 struct musb_context_registers {
 
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
-    defined(CONFIG_ARCH_OMAP4)
-       u32 otg_forcestandby;
-#endif
        u8 power;
        u16 intrtxe, intrrxe;
        u8 intrusbe;

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 64cf243..b6dcc7e 100644 (file)
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -488,15 +488,6 @@ static int __exit omap2430_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static void omap2430_save_context(struct musb *musb)
-{
-       musb->context.otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
-}
-
-static void omap2430_restore_context(struct musb *musb)
-{
-       musb_writel(musb->mregs, OTG_FORCESTDBY, musb->context.otg_forcestandby);
-}
 
 static int omap2430_suspend(struct device *dev)
 {
@@ -505,7 +496,6 @@ static int omap2430_suspend(struct device *dev)
 
        omap2430_low_level_exit(musb);
        otg_set_suspend(musb->xceiv, 1);
-       omap2430_save_context(musb);
 
        if (!pm_runtime_suspended(dev) && dev->bus && dev->bus->pm &&
                        dev->bus->pm->runtime_suspend)
@@ -524,7 +514,6 @@ static int omap2430_resume(struct device *dev)
                dev->bus->pm->runtime_resume(dev);
 
        omap2430_low_level_init(musb);
-       omap2430_restore_context(musb);
        otg_set_suspend(musb->xceiv, 0);
 
        return 0;