diff options
Diffstat (limited to 'drivers/video/s3c-fb.c')
-rw-r--r-- | drivers/video/s3c-fb.c | 117 |
1 files changed, 112 insertions, 5 deletions
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index 4aecf21..0753b1c 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c @@ -81,6 +81,7 @@ struct s3c_fb; * @palette: Address of palette memory, or 0 if none. * @has_prtcon: Set if has PRTCON register. * @has_shadowcon: Set if has SHADOWCON register. + * @has_clksel: Set if VIDCON0 register has CLKSEL bit. */ struct s3c_fb_variant { unsigned int is_2443:1; @@ -98,6 +99,7 @@ struct s3c_fb_variant { unsigned int has_prtcon:1; unsigned int has_shadowcon:1; + unsigned int has_clksel:1; }; /** @@ -186,6 +188,7 @@ struct s3c_fb_vsync { * @dev: The device that we bound to, for printing, etc. * @regs_res: The resource we claimed for the IO registers. * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk. + * @lcd_clk: The clk (sclk) feeding pixclk. * @regs: The mapped hardware registers. * @variant: Variant information for this hardware. * @enabled: A bitmask of enabled hardware windows. @@ -200,6 +203,7 @@ struct s3c_fb { struct device *dev; struct resource *regs_res; struct clk *bus_clk; + struct clk *lcd_clk; void __iomem *regs; struct s3c_fb_variant variant; @@ -336,10 +340,15 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var, */ static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk) { - unsigned long clk = clk_get_rate(sfb->bus_clk); + unsigned long clk; unsigned long long tmp; unsigned int result; + if (sfb->variant.has_clksel) + clk = clk_get_rate(sfb->bus_clk); + else + clk = clk_get_rate(sfb->lcd_clk); + tmp = (unsigned long long)clk; tmp *= pixclk; @@ -883,7 +892,7 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var, } } /* Offset in bytes to the end of the displayed area */ - end_boff = start_boff + var->yres * info->fix.line_length; + end_boff = start_boff + info->var.yres * info->fix.line_length; /* Temporarily turn off per-vsync update from shadow registers until * both start and end addresses are updated to prevent corruption */ @@ -1354,13 +1363,24 @@ static int __devinit s3c_fb_probe(struct platform_device *pdev) clk_enable(sfb->bus_clk); + if (!sfb->variant.has_clksel) { + sfb->lcd_clk = clk_get(dev, "sclk_fimd"); + if (IS_ERR(sfb->lcd_clk)) { + dev_err(dev, "failed to get lcd clock\n"); + ret = PTR_ERR(sfb->lcd_clk); + goto err_bus_clk; + } + + clk_enable(sfb->lcd_clk); + } + pm_runtime_enable(sfb->dev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "failed to find registers\n"); ret = -ENOENT; - goto err_clk; + goto err_lcd_clk; } sfb->regs_res = request_mem_region(res->start, resource_size(res), @@ -1368,7 +1388,7 @@ static int __devinit s3c_fb_probe(struct platform_device *pdev) if (!sfb->regs_res) { dev_err(dev, "failed to claim register region\n"); ret = -ENOENT; - goto err_clk; + goto err_lcd_clk; } sfb->regs = ioremap(res->start, resource_size(res)); @@ -1450,7 +1470,13 @@ err_ioremap: err_req_region: release_mem_region(sfb->regs_res->start, resource_size(sfb->regs_res)); -err_clk: +err_lcd_clk: + if (!sfb->variant.has_clksel) { + clk_disable(sfb->lcd_clk); + clk_put(sfb->lcd_clk); + } + +err_bus_clk: clk_disable(sfb->bus_clk); clk_put(sfb->bus_clk); @@ -1481,6 +1507,11 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev) iounmap(sfb->regs); + if (!sfb->variant.has_clksel) { + clk_disable(sfb->lcd_clk); + clk_put(sfb->lcd_clk); + } + clk_disable(sfb->bus_clk); clk_put(sfb->bus_clk); @@ -1510,6 +1541,9 @@ static int s3c_fb_suspend(struct device *dev) s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); } + if (!sfb->variant.has_clksel) + clk_disable(sfb->lcd_clk); + clk_disable(sfb->bus_clk); return 0; } @@ -1524,6 +1558,9 @@ static int s3c_fb_resume(struct device *dev) clk_enable(sfb->bus_clk); + if (!sfb->variant.has_clksel) + clk_enable(sfb->lcd_clk); + /* setup gpio and output polarity controls */ pd->setup_gpio(); writel(pd->vidcon1, sfb->regs + VIDCON1); @@ -1569,6 +1606,9 @@ static int s3c_fb_runtime_suspend(struct device *dev) s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); } + if (!sfb->variant.has_clksel) + clk_disable(sfb->lcd_clk); + clk_disable(sfb->bus_clk); return 0; } @@ -1583,6 +1623,9 @@ static int s3c_fb_runtime_resume(struct device *dev) clk_enable(sfb->bus_clk); + if (!sfb->variant.has_clksel) + clk_enable(sfb->lcd_clk); + /* setup gpio and output polarity controls */ pd->setup_gpio(); writel(pd->vidcon1, sfb->regs + VIDCON1); @@ -1755,6 +1798,7 @@ static struct s3c_fb_driverdata s3c_fb_data_64xx = { }, .has_prtcon = 1, + .has_clksel = 1, }, .win[0] = &s3c_fb_data_64xx_wins[0], .win[1] = &s3c_fb_data_64xx_wins[1], @@ -1785,6 +1829,7 @@ static struct s3c_fb_driverdata s3c_fb_data_s5pc100 = { }, .has_prtcon = 1, + .has_clksel = 1, }, .win[0] = &s3c_fb_data_s5p_wins[0], .win[1] = &s3c_fb_data_s5p_wins[1], @@ -1815,6 +1860,37 @@ static struct s3c_fb_driverdata s3c_fb_data_s5pv210 = { }, .has_shadowcon = 1, + .has_clksel = 1, + }, + .win[0] = &s3c_fb_data_s5p_wins[0], + .win[1] = &s3c_fb_data_s5p_wins[1], + .win[2] = &s3c_fb_data_s5p_wins[2], + .win[3] = &s3c_fb_data_s5p_wins[3], + .win[4] = &s3c_fb_data_s5p_wins[4], +}; + +static struct s3c_fb_driverdata s3c_fb_data_exynos4 = { + .variant = { + .nr_windows = 5, + .vidtcon = VIDTCON0, + .wincon = WINCON(0), + .winmap = WINxMAP(0), + .keycon = WKEYCON, + .osd = VIDOSD_BASE, + .osd_stride = 16, + .buf_start = VIDW_BUF_START(0), + .buf_size = VIDW_BUF_SIZE(0), + .buf_end = VIDW_BUF_END(0), + + .palette = { + [0] = 0x2400, + [1] = 0x2800, + [2] = 0x2c00, + [3] = 0x3000, + [4] = 0x3400, + }, + + .has_shadowcon = 1, }, .win[0] = &s3c_fb_data_s5p_wins[0], .win[1] = &s3c_fb_data_s5p_wins[1], @@ -1843,6 +1919,7 @@ static struct s3c_fb_driverdata s3c_fb_data_s3c2443 = { [0] = 0x400, [1] = 0x800, }, + .has_clksel = 1, }, .win[0] = &(struct s3c_fb_win_variant) { .palette_sz = 256, @@ -1859,6 +1936,30 @@ static struct s3c_fb_driverdata s3c_fb_data_s3c2443 = { }, }; +static struct s3c_fb_driverdata s3c_fb_data_s5p64x0 = { + .variant = { + .nr_windows = 3, + .vidtcon = VIDTCON0, + .wincon = WINCON(0), + .winmap = WINxMAP(0), + .keycon = WKEYCON, + .osd = VIDOSD_BASE, + .osd_stride = 16, + .buf_start = VIDW_BUF_START(0), + .buf_size = VIDW_BUF_SIZE(0), + .buf_end = VIDW_BUF_END(0), + + .palette = { + [0] = 0x2400, + [1] = 0x2800, + [2] = 0x2c00, + }, + }, + .win[0] = &s3c_fb_data_s5p_wins[0], + .win[1] = &s3c_fb_data_s5p_wins[1], + .win[2] = &s3c_fb_data_s5p_wins[2], +}; + static struct platform_device_id s3c_fb_driver_ids[] = { { .name = "s3c-fb", @@ -1870,8 +1971,14 @@ static struct platform_device_id s3c_fb_driver_ids[] = { .name = "s5pv210-fb", .driver_data = (unsigned long)&s3c_fb_data_s5pv210, }, { + .name = "exynos4-fb", + .driver_data = (unsigned long)&s3c_fb_data_exynos4, + }, { .name = "s3c2443-fb", .driver_data = (unsigned long)&s3c_fb_data_s3c2443, + }, { + .name = "s5p64x0-fb", + .driver_data = (unsigned long)&s3c_fb_data_s5p64x0, }, {}, }; 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