staging: fbtft: use alternate screen pointer

Member screen_base in struct fb_info is declared with __iomem
qualifier causing sparse warnings when used as a regular ponter.
To avoid the warnings, instead use alternate non-__iomem pointer,
screen_buffer, troughout the driver.

Signed-off-by: Lars Svensson <lars1.svensson@sonymobile.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

10 files changed, 14 insertions, 14 deletions

diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index 88718f61eb5b..19f6136eb310 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -266,7 +266,7 @@ construct_line_bitmap(struct fbtft_par *par, u8 *dest, signed short *src,
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y;
 	int ret = 0;
diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c
index 8b52523fdc9e..a6b43323f29a 100644
--- a/drivers/staging/fbtft/fb_pcd8544.c
+++ b/drivers/staging/fbtft/fb_pcd8544.c
@@ -112,7 +112,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y, i;
 	int ret = 0;
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index 5c1d93d425d0..86e43e158c61 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -269,7 +269,7 @@ static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 		__func__, offset, len);
 
 	remain = len / 2;
-	vmem16 = (u16 *)(par->info->screen_base + offset);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 	tx_array_size = par->txbuf.len / 2;
 		txbuf16 = (u16 *)(par->txbuf.buf + 1);
 		tx_array_size -= 2;
diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c
index 568b4334c9d9..e0b34a42c9c6 100644
--- a/drivers/staging/fbtft/fb_ssd1306.c
+++ b/drivers/staging/fbtft/fb_ssd1306.c
@@ -160,7 +160,7 @@ static int set_gamma(struct fbtft_par *par, unsigned long *curves)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y, i;
 	int ret = 0;
diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c
index d609f875bcb1..2183f98c8315 100644
--- a/drivers/staging/fbtft/fb_tls8204.c
+++ b/drivers/staging/fbtft/fb_tls8204.c
@@ -94,7 +94,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	int x, y, i;
 	int ret = 0;
 
diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c
index a72f920ca1d7..4e828142058e 100644
--- a/drivers/staging/fbtft/fb_uc1611.c
+++ b/drivers/staging/fbtft/fb_uc1611.c
@@ -221,7 +221,7 @@ static int set_var(struct fbtft_par *par)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u8 *vmem8 = (u8 *)(par->info->screen_base);
+	u8 *vmem8 = (u8 *)(par->info->screen_buffer);
 	u8 *buf8 = (u8 *)(par->txbuf.buf);
 	u16 *buf16 = (u16 *)(par->txbuf.buf);
 	int line_length = par->info->fix.line_length;
diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c
index 28aa1008b297..212908e39277 100644
--- a/drivers/staging/fbtft/fb_uc1701.c
+++ b/drivers/staging/fbtft/fb_uc1701.c
@@ -141,7 +141,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
-	u16 *vmem16 = (u16 *)par->info->screen_base;
+	u16 *vmem16 = (u16 *)par->info->screen_buffer;
 	u8 *buf = par->txbuf.buf;
 	int x, y, i;
 	int ret = 0;
diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index be99a9d76316..f8cb610a7b69 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -68,7 +68,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
 	unsigned start_line, end_line;
-	u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
+	u16 *vmem16 = (u16 *)(par->info->screen_buffer + offset);
 	u16 *pos = par->txbuf.buf + 1;
 	u16 *buf16 = par->txbuf.buf + 10;
 	int i, j;
@@ -105,7 +105,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 static int write_vmem_8bit(struct fbtft_par *par, size_t offset, size_t len)
 {
 	unsigned start_line, end_line;
-	u16 *vmem16 = (u16 *)(par->info->screen_base + offset);
+	u16 *vmem16 = (u16 *)(par->info->screen_buffer + offset);
 	u16 *pos = par->txbuf.buf + 1;
 	u8 *buf8 = par->txbuf.buf + 10;
 	int i, j;
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index 97129241cab9..9a95fde194d5 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -137,7 +137,7 @@ int fbtft_write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 		__func__, offset, len);
 
 	remain = len / 2;
-	vmem16 = (u16 *)(par->info->screen_base + offset);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 
 	if (par->gpio.dc != -1)
 		gpio_set_value(par->gpio.dc, 1);
@@ -196,7 +196,7 @@ int fbtft_write_vmem16_bus9(struct fbtft_par *par, size_t offset, size_t len)
 	}
 
 	remain = len;
-	vmem8 = par->info->screen_base + offset;
+	vmem8 = par->info->screen_buffer + offset;
 
 	tx_array_size = par->txbuf.len / 2;
 
@@ -240,7 +240,7 @@ int fbtft_write_vmem16_bus16(struct fbtft_par *par, size_t offset, size_t len)
 	fbtft_par_dbg(DEBUG_WRITE_VMEM, par, "%s(offset=%zu, len=%zu)\n",
 		__func__, offset, len);
 
-	vmem16 = (u16 *)(par->info->screen_base + offset);
+	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 
 	if (par->gpio.dc != -1)
 		gpio_set_value(par->gpio.dc, 1);
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index deccb1d99251..b1e45161eefc 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -748,7 +748,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	if (!info)
 		goto alloc_fail;
 
-	info->screen_base = (u8 __force __iomem *)vmem;
+	info->screen_buffer = vmem;
 	info->fbops = fbops;
 	info->fbdefio = fbdefio;
 
@@ -888,7 +888,7 @@ EXPORT_SYMBOL(fbtft_framebuffer_alloc);
 void fbtft_framebuffer_release(struct fb_info *info)
 {
 	fb_deferred_io_cleanup(info);
-	vfree(info->screen_base);
+	vfree(info->screen_buffer);
 	framebuffer_release(info);
 }
 EXPORT_SYMBOL(fbtft_framebuffer_release);