usb: musb: Change to direct addr in context save/restore

Since not all platforms are using the same offset 0x10 in
musb_save/restore_context() eg Blackfin the offset is 0x40,
Change the indexed address to direct.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 540c766..d4f18bb 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2266,6 +2266,7 @@ void musb_save_context(struct musb *musb)
 {
        int i;
        void __iomem *musb_base = musb->mregs;
+       void __iomem *epio;
 
        if (is_host_enabled(musb)) {
                musb_context.frame = musb_readw(musb_base, MUSB_FRAME);
@@ -2279,16 +2280,16 @@ void musb_save_context(struct musb *musb)
        musb_context.index = musb_readb(musb_base, MUSB_INDEX);
        musb_context.devctl = musb_readb(musb_base, MUSB_DEVCTL);
 
-       for (i = 0; i < MUSB_C_NUM_EPS; ++i) {
-               musb_writeb(musb_base, MUSB_INDEX, i);
+       for (i = 0; i < musb->config->num_eps; ++i) {
+               epio = musb->endpoints[i].regs;
                musb_context.index_regs[i].txmaxp =
-                       musb_readw(musb_base, 0x10 + MUSB_TXMAXP);
+                       musb_readw(epio, MUSB_TXMAXP);
                musb_context.index_regs[i].txcsr =
-                       musb_readw(musb_base, 0x10 + MUSB_TXCSR);
+                       musb_readw(epio, MUSB_TXCSR);
                musb_context.index_regs[i].rxmaxp =
-                       musb_readw(musb_base, 0x10 + MUSB_RXMAXP);
+                       musb_readw(epio, MUSB_RXMAXP);
                musb_context.index_regs[i].rxcsr =
-                       musb_readw(musb_base, 0x10 + MUSB_RXCSR);
+                       musb_readw(epio, MUSB_RXCSR);
 
                if (musb->dyn_fifo) {
                        musb_context.index_regs[i].txfifoadd =
@@ -2302,13 +2303,13 @@ void musb_save_context(struct musb *musb)
                }
                if (is_host_enabled(musb)) {
                        musb_context.index_regs[i].txtype =
-                               musb_readb(musb_base, 0x10 + MUSB_TXTYPE);
+                               musb_readb(epio, MUSB_TXTYPE);
                        musb_context.index_regs[i].txinterval =
-                               musb_readb(musb_base, 0x10 + MUSB_TXINTERVAL);
+                               musb_readb(epio, MUSB_TXINTERVAL);
                        musb_context.index_regs[i].rxtype =
-                               musb_readb(musb_base, 0x10 + MUSB_RXTYPE);
+                               musb_readb(epio, MUSB_RXTYPE);
                        musb_context.index_regs[i].rxinterval =
-                               musb_readb(musb_base, 0x10 + MUSB_RXINTERVAL);
+                               musb_readb(epio, MUSB_RXINTERVAL);
 
                        musb_context.index_regs[i].txfunaddr =
                                musb_read_txfunaddr(musb_base, i);
@@ -2326,8 +2327,6 @@ void musb_save_context(struct musb *musb)
                }
        }
 
-       musb_writeb(musb_base, MUSB_INDEX, musb_context.index);
-
        musb_platform_save_context(musb, &musb_context);
 }
 
@@ -2336,6 +2335,7 @@ void musb_restore_context(struct musb *musb)
        int i;
        void __iomem *musb_base = musb->mregs;
        void __iomem *ep_target_regs;
+       void __iomem *epio;
 
        musb_platform_restore_context(musb, &musb_context);
 
@@ -2350,15 +2350,15 @@ void musb_restore_context(struct musb *musb)
        musb_writeb(musb_base, MUSB_INTRUSBE, musb_context.intrusbe);
        musb_writeb(musb_base, MUSB_DEVCTL, musb_context.devctl);
 
-       for (i = 0; i < MUSB_C_NUM_EPS; ++i) {
-               musb_writeb(musb_base, MUSB_INDEX, i);
-               musb_writew(musb_base, 0x10 + MUSB_TXMAXP,
+       for (i = 0; i < musb->config->num_eps; ++i) {
+               epio = musb->endpoints[i].regs;
+               musb_writew(epio, MUSB_TXMAXP,
                        musb_context.index_regs[i].txmaxp);
-               musb_writew(musb_base, 0x10 + MUSB_TXCSR,
+               musb_writew(epio, MUSB_TXCSR,
                        musb_context.index_regs[i].txcsr);
-               musb_writew(musb_base, 0x10 + MUSB_RXMAXP,
+               musb_writew(epio, MUSB_RXMAXP,
                        musb_context.index_regs[i].rxmaxp);
-               musb_writew(musb_base, 0x10 + MUSB_RXCSR,
+               musb_writew(epio, MUSB_RXCSR,
                        musb_context.index_regs[i].rxcsr);
 
                if (musb->dyn_fifo) {
@@ -2373,13 +2373,13 @@ void musb_restore_context(struct musb *musb)
                }
 
                if (is_host_enabled(musb)) {
-                       musb_writeb(musb_base, 0x10 + MUSB_TXTYPE,
+                       musb_writeb(epio, MUSB_TXTYPE,
                                musb_context.index_regs[i].txtype);
-                       musb_writeb(musb_base, 0x10 + MUSB_TXINTERVAL,
+                       musb_writeb(epio, MUSB_TXINTERVAL,
                                musb_context.index_regs[i].txinterval);
-                       musb_writeb(musb_base, 0x10 + MUSB_RXTYPE,
+                       musb_writeb(epio, MUSB_RXTYPE,
                                musb_context.index_regs[i].rxtype);
-                       musb_writeb(musb_base, 0x10 + MUSB_RXINTERVAL,
+                       musb_writeb(epio, MUSB_RXINTERVAL,
 
                        musb_context.index_regs[i].rxinterval);
                        musb_write_txfunaddr(musb_base, i,
@@ -2400,8 +2400,6 @@ void musb_restore_context(struct musb *musb)
                                musb_context.index_regs[i].rxhubport);
                }
        }
-
-       musb_writeb(musb_base, MUSB_INDEX, musb_context.index);
 }
 
 static int musb_suspend(struct device *dev)