added lcd clock support
Signed-off-by: Zhou Zhu <zzhu3@xxxxxxxxxxx>
---
arch/arm/mach-mmp/pxa910.c | 32 +++++++++++++++++++++++++++++++-
1 files changed, 31 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index 7d7c43b..78c6eb8 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -82,6 +82,35 @@ void __init pxa910_init_irq(void)
icu_init_irq();
}
+static void lcd_clk_enable(struct clk *clk)
+{
+ writel_relaxed(clk->enable_val, clk->clk_rst);
+}
+static void lcd_clk_disable(struct clk *clk)
+{
+ u32 tmp = readl_relaxed(clk->clk_rst);
+ tmp &= ~0x38; /* release from reset to keep register setting */
+ writel_relaxed(tmp, clk->clk_rst);
+}
+
+static int lcd_clk_setrate(struct clk *clk, unsigned long val)
+{
+ writel_relaxed(val, clk->clk_rst);
+ return 0;
+}
+static unsigned long lcd_clk_getrate(struct clk *clk)
+{
+ unsigned long rate = clk->rate;
+ return rate;
+}
+
+struct clkops lcd_pn1_clk_ops = {
+ .enable = lcd_clk_enable,
+ .disable = lcd_clk_disable,
+ .setrate = lcd_clk_setrate,
+ .getrate = lcd_clk_getrate,
+};
+
/* APB peripheral clocks */
static APBC_CLK(uart1, PXA910_UART0, 1, 14745600);
static APBC_CLK(uart2, PXA910_UART1, 1, 14745600);
@@ -93,7 +122,7 @@ static APBC_CLK(pwm3, PXA910_PWM3, 1, 13000000);
static APBC_CLK(pwm4, PXA910_PWM4, 1, 13000000);
static APBC_CLK(gpio, PXA910_GPIO, 0, 13000000);
static APBC_CLK(rtc, PXA910_RTC, 8, 32768);
-
+static APMU_CLK_OPS(lcd, LCD, 0x003f, 312000000, &lcd_pn1_clk_ops);
static APMU_CLK(nand, NAND, 0x19b, 156000000);
static APMU_CLK(u2o, USB, 0x1b, 480000000);
@@ -111,6 +140,7 @@ static struct clk_lookup pxa910_clkregs[] = {
INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
INIT_CLKREG(&clk_u2o, NULL, "U2OCLK"),
INIT_CLKREG(&clk_rtc, "sa1100-rtc", NULL),
+ INIT_CLKREG(&clk_lcd, NULL, "LCDCLK"),
};
static int __init pxa910_init(void)
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
