summaryrefslogtreecommitdiff
path: root/drivers/video/fbdev/xilinxfb.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/fbdev/xilinxfb.c')
-rw-r--r--drivers/video/fbdev/xilinxfb.c62
1 files changed, 31 insertions, 31 deletions
diff --git a/drivers/video/fbdev/xilinxfb.c b/drivers/video/fbdev/xilinxfb.c
index 17dc119c7a98..8628829b470d 100644
--- a/drivers/video/fbdev/xilinxfb.c
+++ b/drivers/video/fbdev/xilinxfb.c
@@ -41,7 +41,6 @@
#define DRIVER_NAME "xilinxfb"
-
/*
* Xilinx calls it "TFT LCD Controller" though it can also be used for
* the VGA port on the Xilinx ML40x board. This is a hardware display
@@ -92,15 +91,16 @@ struct xilinxfb_platform_data {
u32 xvirt, yvirt; /* resolution of memory buffer */
/* Physical address of framebuffer memory; If non-zero, driver
- * will use provided memory address instead of allocating one from
- * the consistent pool. */
+ * will use provided memory address instead of allocating one from
+ * the consistent pool.
+ */
u32 fb_phys;
};
/*
* Default xilinxfb configuration
*/
-static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
+static const struct xilinxfb_platform_data xilinx_fb_default_pdata = {
.xres = 640,
.yres = 480,
.xvirt = 1024,
@@ -110,14 +110,14 @@ static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
/*
* Here are the default fb_fix_screeninfo and fb_var_screeninfo structures
*/
-static struct fb_fix_screeninfo xilinx_fb_fix = {
+static const struct fb_fix_screeninfo xilinx_fb_fix = {
.id = "Xilinx",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.accel = FB_ACCEL_NONE
};
-static struct fb_var_screeninfo xilinx_fb_var = {
+static const struct fb_var_screeninfo xilinx_fb_var = {
.bits_per_pixel = BITS_PER_PIXEL,
.red = { RED_SHIFT, 8, 0 },
@@ -128,18 +128,18 @@ static struct fb_var_screeninfo xilinx_fb_var = {
.activate = FB_ACTIVATE_NOW
};
-
#define BUS_ACCESS_FLAG 0x1 /* 1 = BUS, 0 = DCR */
#define LITTLE_ENDIAN_ACCESS 0x2 /* LITTLE ENDIAN IO functions */
struct xilinxfb_drvdata {
-
struct fb_info info; /* FB driver info record */
phys_addr_t regs_phys; /* phys. address of the control
- registers */
+ * registers
+ */
void __iomem *regs; /* virt. address of the control
- registers */
+ * registers
+ */
#ifdef CONFIG_PPC_DCR
dcr_host_t dcr_host;
unsigned int dcr_len;
@@ -148,7 +148,7 @@ struct xilinxfb_drvdata {
dma_addr_t fb_phys; /* phys. address of the frame buffer */
int fb_alloced; /* Flag, was the fb memory alloced? */
- u8 flags; /* features of the driver */
+ u8 flags; /* features of the driver */
u32 reg_ctrl_default;
@@ -165,7 +165,7 @@ struct xilinxfb_drvdata {
* which bus its connected and call the appropriate write API.
*/
static void xilinx_fb_out32(struct xilinxfb_drvdata *drvdata, u32 offset,
- u32 val)
+ u32 val)
{
if (drvdata->flags & BUS_ACCESS_FLAG) {
if (drvdata->flags & LITTLE_ENDIAN_ACCESS)
@@ -195,8 +195,8 @@ static u32 xilinx_fb_in32(struct xilinxfb_drvdata *drvdata, u32 offset)
}
static int
-xilinx_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
- unsigned transp, struct fb_info *fbi)
+xilinx_fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
+ unsigned int blue, unsigned int transp, struct fb_info *fbi)
{
u32 *palette = fbi->pseudo_palette;
@@ -205,9 +205,11 @@ xilinx_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
if (fbi->var.grayscale) {
/* Convert color to grayscale.
- * grayscale = 0.30*R + 0.59*G + 0.11*B */
- red = green = blue =
- (red * 77 + green * 151 + blue * 28 + 127) >> 8;
+ * grayscale = 0.30*R + 0.59*G + 0.11*B
+ */
+ blue = (red * 77 + green * 151 + blue * 28 + 127) >> 8;
+ green = blue;
+ red = green;
}
/* fbi->fix.visual is always FB_VISUAL_TRUECOLOR */
@@ -241,13 +243,11 @@ xilinx_fb_blank(int blank_mode, struct fb_info *fbi)
xilinx_fb_out32(drvdata, REG_CTRL, 0);
default:
break;
-
}
return 0; /* success */
}
-static struct fb_ops xilinxfb_ops =
-{
+static struct fb_ops xilinxfb_ops = {
.owner = THIS_MODULE,
.fb_setcolreg = xilinx_fb_setcolreg,
.fb_blank = xilinx_fb_blank,
@@ -286,7 +286,8 @@ static int xilinxfb_assign(struct platform_device *pdev,
} else {
drvdata->fb_alloced = 1;
drvdata->fb_virt = dma_alloc_coherent(dev, PAGE_ALIGN(fbsize),
- &drvdata->fb_phys, GFP_KERNEL);
+ &drvdata->fb_phys,
+ GFP_KERNEL);
}
if (!drvdata->fb_virt) {
@@ -300,7 +301,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
/* Tell the hardware where the frame buffer is */
xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
rc = xilinx_fb_in32(drvdata, REG_FB_ADDR);
- /* Endianess detection */
+ /* Endianness detection */
if (rc != drvdata->fb_phys) {
drvdata->flags |= LITTLE_ENDIAN_ACCESS;
xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
@@ -310,8 +311,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
drvdata->reg_ctrl_default = REG_CTRL_ENABLE;
if (pdata->rotate_screen)
drvdata->reg_ctrl_default |= REG_CTRL_ROTATE;
- xilinx_fb_out32(drvdata, REG_CTRL,
- drvdata->reg_ctrl_default);
+ xilinx_fb_out32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
/* Fill struct fb_info */
drvdata->info.device = dev;
@@ -364,7 +364,7 @@ err_regfb:
err_cmap:
if (drvdata->fb_alloced)
dma_free_coherent(dev, PAGE_ALIGN(fbsize), drvdata->fb_virt,
- drvdata->fb_phys);
+ drvdata->fb_phys);
else
iounmap(drvdata->fb_virt);
@@ -435,12 +435,12 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
* Fill the resource structure if its direct BUS interface
* otherwise fill the dcr_host structure.
*/
- if (tft_access) {
+ if (tft_access)
drvdata->flags |= BUS_ACCESS_FLAG;
- }
#ifdef CONFIG_PPC_DCR
else {
int start;
+
start = dcr_resource_start(pdev->dev.of_node, 0);
drvdata->dcr_len = dcr_resource_len(pdev->dev.of_node, 0);
drvdata->dcr_host = dcr_map(pdev->dev.of_node, start, drvdata->dcr_len);
@@ -452,19 +452,19 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
#endif
prop = of_get_property(pdev->dev.of_node, "phys-size", &size);
- if ((prop) && (size >= sizeof(u32)*2)) {
+ if ((prop) && (size >= sizeof(u32) * 2)) {
pdata.screen_width_mm = prop[0];
pdata.screen_height_mm = prop[1];
}
prop = of_get_property(pdev->dev.of_node, "resolution", &size);
- if ((prop) && (size >= sizeof(u32)*2)) {
+ if ((prop) && (size >= sizeof(u32) * 2)) {
pdata.xres = prop[0];
pdata.yres = prop[1];
}
prop = of_get_property(pdev->dev.of_node, "virtual-resolution", &size);
- if ((prop) && (size >= sizeof(u32)*2)) {
+ if ((prop) && (size >= sizeof(u32) * 2)) {
pdata.xvirt = prop[0];
pdata.yvirt = prop[1];
}
@@ -482,7 +482,7 @@ static int xilinxfb_of_remove(struct platform_device *op)
}
/* Match table for of_platform binding */
-static struct of_device_id xilinxfb_of_match[] = {
+static const struct of_device_id xilinxfb_of_match[] = {
{ .compatible = "xlnx,xps-tft-1.00.a", },
{ .compatible = "xlnx,xps-tft-2.00.a", },
{ .compatible = "xlnx,xps-tft-2.01.a", },
generated by cgit (git 2.34.1) at 2024-05-09 10:58:31 +0000