staging: emxx_udc: Added missing __iomem modifier to handle p_regs

Since in nbu2ss_drv_probe() p_regs is assigned from mmio_base, which is
marked as __iomem, p_regs also should be market with __iomem.

Signed-off-by: Carmeli Tamir <carmeli.tamir@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index f49c863..3504277 100644 (file)
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -60,21 +60,21 @@ static struct nbu2ss_udc udc_controller;
 
 /*-------------------------------------------------------------------------*/
 /* Read */
-static inline u32 _nbu2ss_readl(void *address)
+static inline u32 _nbu2ss_readl(void __iomem *address)
 {
        return __raw_readl(address);
 }
 
 /*-------------------------------------------------------------------------*/
 /* Write */
-static inline void _nbu2ss_writel(void *address, u32 udata)
+static inline void _nbu2ss_writel(void __iomem *address, u32 udata)
 {
        __raw_writel(udata, address);
 }
 
 /*-------------------------------------------------------------------------*/
 /* Set Bit */
-static inline void _nbu2ss_bitset(void *address, u32 udata)
+static inline void _nbu2ss_bitset(void __iomem *address, u32 udata)
 {
        u32     reg_dt = __raw_readl(address) | (udata);
 
@@ -83,7 +83,7 @@ static inline void _nbu2ss_bitset(void *address, u32 udata)
 
 /*-------------------------------------------------------------------------*/
 /* Clear Bit */
-static inline void _nbu2ss_bitclr(void *address, u32 udata)
+static inline void _nbu2ss_bitclr(void __iomem *address, u32 udata)
 {
        u32     reg_dt = __raw_readl(address) & ~(udata);
 
@@ -184,7 +184,7 @@ static u32 _nbu2ss_get_begin_ram_address(struct nbu2ss_udc *udc)
        u32             num, buf_type;
        u32             data, last_ram_adr, use_ram_size;
 
-       struct ep_regs *p_ep_regs;
+       struct ep_regs __iomem *p_ep_regs;
 
        last_ram_adr = (D_RAM_SIZE_CTRL / sizeof(u32)) * 2;
        use_ram_size = 0;
@@ -377,7 +377,7 @@ static void _nbu2ss_ep_dma_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
        u32             num;
        u32             data;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (udc->vbus_active == 0)
                return;         /* VBUS OFF */
@@ -408,7 +408,7 @@ static void _nbu2ss_ep_dma_exit(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 /* Abort DMA */
 static void _nbu2ss_ep_dma_abort(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        _nbu2ss_bitclr(&preg->EP_DCR[ep->epnum - 1].EP_DCR1, DCR1_EPN_REQEN);
        mdelay(DMA_DISABLE_TIME);       /* DCR1_EPN_REQEN Clear */
@@ -426,7 +426,7 @@ static void _nbu2ss_ep_in_end(
 {
        u32             data;
        u32             num;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (length >= sizeof(u32))
                return;
@@ -817,7 +817,7 @@ static int _nbu2ss_out_dma(
        u32             burst = 1;
        u32             data;
        int             result = -EINVAL;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (req->dma_flag)
                return 1;               /* DMA is forwarded */
@@ -880,7 +880,7 @@ static int _nbu2ss_epn_out_pio(
        union usb_reg_access    temp_32;
        union usb_reg_access    *p_buf_32;
        int             result = 0;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (req->dma_flag)
                return 1;               /* DMA is forwarded */
@@ -964,7 +964,7 @@ static int _nbu2ss_epn_out_transfer(
        u32             num;
        u32             i_recv_length;
        int             result = 1;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (ep->epnum == 0)
                return -EINVAL;
@@ -1026,7 +1026,7 @@ static int _nbu2ss_in_dma(
        u32             i_write_length;
        u32             data;
        int             result = -EINVAL;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (req->dma_flag)
                return 1;               /* DMA is forwarded */
@@ -1101,7 +1101,7 @@ static int _nbu2ss_epn_in_pio(
        union usb_reg_access    temp_32;
        union usb_reg_access    *p_buf_32 = NULL;
        int             result = 0;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (req->dma_flag)
                return 1;               /* DMA is forwarded */
@@ -1317,7 +1317,7 @@ static void _nbu2ss_set_endpoint_stall(
        u8              num, epnum;
        u32             data;
        struct nbu2ss_ep *ep;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if ((ep_adrs == 0) || (ep_adrs == 0x80)) {
                if (bstall) {
@@ -1421,7 +1421,7 @@ static int _nbu2ss_get_ep_stall(struct nbu2ss_udc *udc, u8 ep_adrs)
 {
        u8              epnum;
        u32             data = 0, bit_data;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        epnum = ep_adrs & ~USB_ENDPOINT_DIR_MASK;
        if (epnum == 0) {
@@ -1516,7 +1516,7 @@ static void _nbu2ss_epn_set_stall(
        u32     regdata;
        int     limit_cnt = 0;
 
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (ep->direct == USB_DIR_IN) {
                for (limit_cnt = 0
@@ -1924,7 +1924,7 @@ static inline void _nbu2ss_epn_in_int(
        int     result = 0;
        u32     status;
 
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (req->dma_flag)
                return;         /* DMA is forwarded */
@@ -2019,7 +2019,7 @@ static inline void _nbu2ss_epn_out_dma_int(
        u32             num;
        u32             dmacnt, ep_dmacnt;
        u32             mpkt;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        num = ep->epnum - 1;
 
@@ -2195,7 +2195,7 @@ static int _nbu2ss_pullup(struct nbu2ss_udc *udc, int is_on)
 /*-------------------------------------------------------------------------*/
 static void _nbu2ss_fifo_flush(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep)
 {
-       struct fc_regs  *p = udc->p_regs;
+       struct fc_regs __iomem *p = udc->p_regs;
 
        if (udc->vbus_active == 0)
                return;
@@ -2413,7 +2413,7 @@ static irqreturn_t _nbu2ss_udc_irq(int irq, void *_udc)
        u32     epnum, int_bit;
 
        struct nbu2ss_udc       *udc = (struct nbu2ss_udc *)_udc;
-       struct fc_regs  *preg = udc->p_regs;
+       struct fc_regs __iomem *preg = udc->p_regs;
 
        if (gpio_get_value(VBUS_VALUE) == 0) {
                _nbu2ss_writel(&preg->USB_INT_STA, ~USB_INT_STA_RW);
@@ -2804,7 +2804,7 @@ static int nbu2ss_ep_fifo_status(struct usb_ep *_ep)
        struct nbu2ss_ep        *ep;
        struct nbu2ss_udc       *udc;
        unsigned long           flags;
-       struct fc_regs          *preg;
+       struct fc_regs  __iomem *preg;
 
        if (!_ep) {
                pr_err("%s, bad param\n", __func__);
@@ -3177,7 +3177,7 @@ static int nbu2ss_drv_probe(struct platform_device *pdev)
                                  0, driver_name, udc);
 
        /* IO Memory */
-       udc->p_regs = (struct fc_regs *)mmio_base;
+       udc->p_regs = (struct fc_regs __iomem *)mmio_base;
 
        /* USB Function Controller Interrupt */
        if (status != 0) {

diff --git a/drivers/staging/emxx_udc/emxx_udc.h b/drivers/staging/emxx_udc/emxx_udc.h
index 8337e38..e28a74d 100644 (file)
--- a/drivers/staging/emxx_udc/emxx_udc.h
+++ b/drivers/staging/emxx_udc/emxx_udc.h
@@ -582,7 +582,7 @@ struct nbu2ss_udc {
 
        u32             curr_config;    /* Current Configuration Number */
 
-       struct fc_regs          *p_regs;
+       struct fc_regs __iomem *p_regs;
 };
 
 /* USB register access structure */