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path: root/drivers/video/imxfb.c
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Diffstat (limited to 'drivers/video/imxfb.c')
-rw-r--r--drivers/video/imxfb.c66
1 files changed, 55 insertions, 11 deletions
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index d58c68cd456..bd1cb75cd14 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -14,7 +14,6 @@
* linux-arm-kernel@lists.arm.linux.org.uk
*/
-
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -44,7 +43,12 @@
#define LCDC_SIZE 0x04
#define SIZE_XMAX(x) ((((x) >> 4) & 0x3f) << 20)
+
+#ifdef CONFIG_ARCH_MX1
#define SIZE_YMAX(y) ((y) & 0x1ff)
+#else
+#define SIZE_YMAX(y) ((y) & 0x3ff)
+#endif
#define LCDC_VPW 0x08
#define VPW_VPW(x) ((x) & 0x3ff)
@@ -54,7 +58,12 @@
#define CPOS_CC0 (1<<30)
#define CPOS_OP (1<<28)
#define CPOS_CXP(x) (((x) & 3ff) << 16)
+
+#ifdef CONFIG_ARCH_MX1
#define CPOS_CYP(y) ((y) & 0x1ff)
+#else
+#define CPOS_CYP(y) ((y) & 0x3ff)
+#endif
#define LCDC_LCWHB 0x10
#define LCWHB_BK_EN (1<<31)
@@ -63,9 +72,16 @@
#define LCWHB_BD(x) ((x) & 0xff)
#define LCDC_LCHCC 0x14
+
+#ifdef CONFIG_ARCH_MX1
#define LCHCC_CUR_COL_R(r) (((r) & 0x1f) << 11)
#define LCHCC_CUR_COL_G(g) (((g) & 0x3f) << 5)
#define LCHCC_CUR_COL_B(b) ((b) & 0x1f)
+#else
+#define LCHCC_CUR_COL_R(r) (((r) & 0x3f) << 12)
+#define LCHCC_CUR_COL_G(g) (((g) & 0x3f) << 6)
+#define LCHCC_CUR_COL_B(b) ((b) & 0x3f)
+#endif
#define LCDC_PCR 0x18
@@ -92,7 +108,13 @@
/* bit fields in imxfb.h */
#define LCDC_RMCR 0x34
+
+#ifdef CONFIG_ARCH_MX1
#define RMCR_LCDC_EN (1<<1)
+#else
+#define RMCR_LCDC_EN 0
+#endif
+
#define RMCR_SELF_REF (1<<0)
#define LCDC_LCDICR 0x38
@@ -159,6 +181,17 @@ struct imxfb_info {
#define MIN_XRES 64
#define MIN_YRES 64
+/* Actually this really is 18bit support, the lowest 2 bits of each colour
+ * are unused in hardware. We claim to have 24bit support to make software
+ * like X work, which does not support 18bit.
+ */
+static struct imxfb_rgb def_rgb_18 = {
+ .red = {.offset = 16, .length = 8,},
+ .green = {.offset = 8, .length = 8,},
+ .blue = {.offset = 0, .length = 8,},
+ .transp = {.offset = 0, .length = 0,},
+};
+
static struct imxfb_rgb def_rgb_16_tft = {
.red = {.offset = 11, .length = 5,},
.green = {.offset = 5, .length = 6,},
@@ -286,6 +319,9 @@ static int imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
pr_debug("var->bits_per_pixel=%d\n", var->bits_per_pixel);
switch (var->bits_per_pixel) {
+ case 32:
+ rgb = &def_rgb_18;
+ break;
case 16:
default:
if (readl(fbi->regs + LCDC_PCR) & PCR_TFT)
@@ -327,9 +363,7 @@ static int imxfb_set_par(struct fb_info *info)
struct imxfb_info *fbi = info->par;
struct fb_var_screeninfo *var = &info->var;
- pr_debug("set_par\n");
-
- if (var->bits_per_pixel == 16)
+ if (var->bits_per_pixel == 16 || var->bits_per_pixel == 32)
info->fix.visual = FB_VISUAL_TRUECOLOR;
else if (!fbi->cmap_static)
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
@@ -354,10 +388,6 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
{
pr_debug("Enabling LCD controller\n");
- /* initialize LCDC */
- writel(readl(fbi->regs + LCDC_RMCR) & ~RMCR_LCDC_EN,
- fbi->regs + LCDC_RMCR); /* just to be safe... */
-
writel(fbi->screen_dma, fbi->regs + LCDC_SSA);
/* physical screen start address */
@@ -465,9 +495,9 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
info->fix.id, var->lower_margin);
#endif
- writel(HCR_H_WIDTH(var->hsync_len) |
- HCR_H_WAIT_1(var->right_margin) |
- HCR_H_WAIT_2(var->left_margin),
+ writel(HCR_H_WIDTH(var->hsync_len - 1) |
+ HCR_H_WAIT_1(var->right_margin - 1) |
+ HCR_H_WAIT_2(var->left_margin - 3),
fbi->regs + LCDC_HCR);
writel(VCR_V_WIDTH(var->vsync_len) |
@@ -650,6 +680,12 @@ static int __init imxfb_probe(struct platform_device *pdev)
info->fix.smem_start = fbi->screen_dma;
}
+ if (pdata->init) {
+ ret = pdata->init(fbi->pdev);
+ if (ret)
+ goto failed_platform_init;
+ }
+
/*
* This makes sure that our colour bitfield
* descriptors are correctly initialised.
@@ -674,6 +710,9 @@ static int __init imxfb_probe(struct platform_device *pdev)
failed_register:
fb_dealloc_cmap(&info->cmap);
failed_cmap:
+ if (pdata->exit)
+ pdata->exit(fbi->pdev);
+failed_platform_init:
if (!pdata->fixed_screen_cpu)
dma_free_writecombine(&pdev->dev,fbi->map_size,fbi->map_cpu,
fbi->map_dma);
@@ -691,6 +730,7 @@ failed_init:
static int __devexit imxfb_remove(struct platform_device *pdev)
{
+ struct imx_fb_platform_data *pdata;
struct fb_info *info = platform_get_drvdata(pdev);
struct imxfb_info *fbi = info->par;
struct resource *res;
@@ -701,6 +741,10 @@ static int __devexit imxfb_remove(struct platform_device *pdev)
unregister_framebuffer(info);
+ pdata = pdev->dev.platform_data;
+ if (pdata->exit)
+ pdata->exit(fbi->pdev);
+
fb_dealloc_cmap(&info->cmap);
kfree(info->pseudo_palette);
framebuffer_release(info);