usb: musb: drop musb_platform_save/restore_context

... that can be easily folded into the
musb_platform_suspend/resume calls.
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/am35x.c

@@ -462,19 +462,19 @@ static int am35x_musb_exit(struct musb *musb)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-void musb_platform_save_context(struct musb *musb,
-	struct musb_context_registers *musb_context)
+static int am35x_musb_suspend(struct musb *musb)
 {
 	phy_off();
+
+	return 0;
 }
 
-void musb_platform_restore_context(struct musb *musb,
-	struct musb_context_registers *musb_context)
+static int am35x_musb_resume(struct musb *musb)
 {
 	phy_on();
+
+	return 0;
 }
-#endif
 
 /* AM35x supports only 32bit read operation */
 void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
@@ -516,6 +516,9 @@ static const struct musb_platform_ops am35x_ops = {
 	.set_mode	= am35x_musb_set_mode,
 	.try_idle	= am35x_musb_try_idle,
 
+	.suspend	= am35x_musb_suspend,
+	.resume		= am35x_musb_resume,
+
 	.set_vbus	= am35x_musb_set_vbus,
 };
 

drivers/usb/musb/blackfin.c

@@ -406,9 +406,7 @@ static int bfin_musb_init(struct musb *musb)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-void musb_platform_save_context(struct musb *musb,
-			struct musb_context_registers *musb_context)
+static int bfin_musb_suspend(struct musb *musb)
 {
 	if (is_host_active(musb))
 		/*
@@ -418,14 +416,16 @@ void musb_platform_save_context(struct musb *musb,
 		 * wakeup event.
 		 */
 		gpio_set_value(musb->config->gpio_vrsel, 0);
+
+	return 0;
 }
 
-void musb_platform_restore_context(struct musb *musb,
-			struct musb_context_registers *musb_context)
+static int bfin_musb_resume(struct musb *musb)
 {
 	bfin_musb_reg_init(musb);
+
+	return 0;
 }
-#endif
 
 static int bfin_musb_exit(struct musb *musb)
 {
@@ -446,6 +446,9 @@ static const struct musb_platform_ops bfin_ops = {
 	.set_mode	= bfin_musb_set_mode,
 	.try_idle	= bfin_musb_try_idle,
 
+	.suspend	= bfin_musb_suspend,
+	.resume		= bfin_musb_resume,
+
 	.vbus_status	= bfin_musb_vbus_status,
 	.set_vbus	= bfin_musb_set_vbus,
 };

drivers/usb/musb/musb_core.c

@@ -2307,7 +2307,7 @@ void musb_save_context(struct musb *musb)
 		}
 	}
 
-	musb_platform_save_context(musb, &musb->context);
+	musb_platform_suspend(musb);
 }
 
 void musb_restore_context(struct musb *musb)
@@ -2317,7 +2317,7 @@ void musb_restore_context(struct musb *musb)
 	void __iomem *ep_target_regs;
 	void __iomem *epio;
 
-	musb_platform_restore_context(musb, &musb->context);
+	musb_platform_resume(musb);
 
 	if (is_host_enabled(musb)) {
 		musb_writew(musb_base, MUSB_FRAME, musb->context.frame);

drivers/usb/musb/musb_core.h

@@ -603,20 +603,6 @@ extern irqreturn_t musb_interrupt(struct musb *);
 
 extern void musb_hnp_stop(struct musb *musb);
 
-#ifdef CONFIG_PM
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
-    defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_BLACKFIN)
-extern void musb_platform_save_context(struct musb *musb,
-		struct musb_context_registers *musb_context);
-extern void musb_platform_restore_context(struct musb *musb,
-		struct musb_context_registers *musb_context);
-#else
-#define musb_platform_save_context(m, x)	do {} while (0)
-#define musb_platform_restore_context(m, x)	do {} while (0)
-#endif
-
-#endif
-
 static inline void musb_platform_set_vbus(struct musb *musb, int is_on)
 {
 	if (musb->ops->set_vbus)

drivers/usb/musb/omap2430.c

@@ -258,21 +258,17 @@ static int omap2430_musb_init(struct musb *musb)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-void musb_platform_save_context(struct musb *musb,
-		struct musb_context_registers *musb_context)
+static void omap2430_save_context(struct musb *musb)
 {
-	musb_context->otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG);
-	musb_context->otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
+	musb->context.otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG);
+	musb->context.otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
 }
 
-void musb_platform_restore_context(struct musb *musb,
-		struct musb_context_registers *musb_context)
+static void omap2430_restore_context(struct musb *musb)
 {
-	musb_writel(musb->mregs, OTG_SYSCONFIG, musb_context->otg_sysconfig);
-	musb_writel(musb->mregs, OTG_FORCESTDBY, musb_context->otg_forcestandby);
+	musb_writel(musb->mregs, OTG_SYSCONFIG, musb->context.otg_sysconfig);
+	musb_writel(musb->mregs, OTG_FORCESTDBY, musb->context.otg_forcestandby);
 }
-#endif
 
 static int omap2430_musb_suspend(struct musb *musb)
 {
@@ -287,6 +283,8 @@ static int omap2430_musb_suspend(struct musb *musb)
 	l |= ENABLEWAKEUP;	/* enable wakeup */
 	musb_writel(musb->mregs, OTG_SYSCONFIG, l);
 
+	omap2430_save_context(musb);
+
 	otg_set_suspend(musb->xceiv, 1);
 
 	return 0;
@@ -298,6 +296,8 @@ static int omap2430_musb_resume(struct musb *musb)
 
 	otg_set_suspend(musb->xceiv, 0);
 
+	omap2430_restore_context(musb);
+
 	l = musb_readl(musb->mregs, OTG_SYSCONFIG);
 	l &= ~ENABLEWAKEUP;	/* disable wakeup */
 	musb_writel(musb->mregs, OTG_SYSCONFIG, l);