fbdev: mxsfb: Add support for mx6sl and mx6sx
mx6sl and mx6sx share the same LCD controller as mx23 and mx28.
Add support for it.
The basic difference is the number of clocks that are required:
- mx23/mx28: only one clock
- mx6sl: two clocks
- mx6sx: three clocks
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index c7bf606..025b439 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2425,7 +2425,7 @@
config FB_MXS
tristate "MXS LCD framebuffer support"
- depends on FB && ARCH_MXS
+ depends on FB && (ARCH_MXS || ARCH_MXC)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/fbdev/mxsfb.c b/drivers/video/fbdev/mxsfb.c
index accf48a2..f8ac4a4 100644
--- a/drivers/video/fbdev/mxsfb.c
+++ b/drivers/video/fbdev/mxsfb.c
@@ -172,6 +172,8 @@
struct fb_info fb_info;
struct platform_device *pdev;
struct clk *clk;
+ struct clk *clk_axi;
+ struct clk *clk_disp_axi;
void __iomem *base; /* registers */
unsigned allocated_size;
int enabled;
@@ -331,6 +333,11 @@
}
}
+ if (host->clk_axi)
+ clk_prepare_enable(host->clk_axi);
+
+ if (host->clk_disp_axi)
+ clk_prepare_enable(host->clk_disp_axi);
clk_prepare_enable(host->clk);
clk_set_rate(host->clk, PICOS2KHZ(fb_info->var.pixclock) * 1000U);
@@ -374,6 +381,10 @@
writel(reg & ~VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4);
clk_disable_unprepare(host->clk);
+ if (host->clk_disp_axi)
+ clk_disable_unprepare(host->clk_disp_axi);
+ if (host->clk_axi)
+ clk_disable_unprepare(host->clk_axi);
host->enabled = 0;
@@ -867,6 +878,14 @@
goto fb_release;
}
+ host->clk_axi = devm_clk_get(&host->pdev->dev, "axi");
+ if (IS_ERR(host->clk_axi))
+ host->clk_axi = NULL;
+
+ host->clk_disp_axi = devm_clk_get(&host->pdev->dev, "disp_axi");
+ if (IS_ERR(host->clk_disp_axi))
+ host->clk_disp_axi = NULL;
+
host->reg_lcd = devm_regulator_get(&pdev->dev, "lcd");
if (IS_ERR(host->reg_lcd))
host->reg_lcd = NULL;