Leaving interface clocks enabled causes dss pwrdm to stay in active
state when mpu is in active state. This fix puts dss to sleep state
when it is not needed.
Signed-off-by: Jouni Hogander <jouni.hogander@xxxxxxxxx>
---
drivers/video/omap/dispc.c | 17 +++++------------
1 files changed, 5 insertions(+), 12 deletions(-)
diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c
index 6aff476..ad436f5 100644
--- a/drivers/video/omap/dispc.c
+++ b/drivers/video/omap/dispc.c
@@ -914,18 +914,14 @@ static void put_dss_clocks(void)
static void enable_lcd_clocks(int enable)
{
- if (enable)
+ if (enable) {
+ clk_enable(dispc.dss_ick);
clk_enable(dispc.dss1_fck);
- else
+ }
+ else {
clk_disable(dispc.dss1_fck);
-}
-
-static void enable_interface_clocks(int enable)
-{
- if (enable)
- clk_enable(dispc.dss_ick);
- else
clk_disable(dispc.dss_ick);
+ }
}
static void enable_digit_clocks(int enable)
@@ -1361,7 +1357,6 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode,
if ((r = get_dss_clocks()) < 0)
return r;
- enable_interface_clocks(1);
enable_lcd_clocks(1);
#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
@@ -1465,7 +1460,6 @@ fail2:
free_irq(INT_24XX_DSS_IRQ, fbdev);
fail1:
enable_lcd_clocks(0);
- enable_interface_clocks(0);
put_dss_clocks();
return r;
@@ -1482,7 +1476,6 @@ static void omap_dispc_cleanup(void)
cleanup_fbmem();
free_palette_ram();
free_irq(INT_24XX_DSS_IRQ, dispc.fbdev);
- enable_interface_clocks(0);
put_dss_clocks();
}
--
1.5.5
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