Re: [PATCH V2 6/7] ARM: EXYNOS5: Add the bus clock for FIMD

On Monday, July 23, 2012 6:55 PM, Joonyoung Shim wrote:

Hi, Jingoo.

On 07/23/2012 05:34 PM, Joonyoung Shim wrote:

quoted

On 07/18/2012 02:57 PM, Leela Krishna Amudala wrote:

quoted

This patch adds the bus clock for FIMD and changes
the device name for lcd clock

Please refer below patch for exynos4.

http://lists.linaro.org/pipermail/linaro-dev/2011-December/008872.html

quoted

Signed-off-by: Leela Krishna Amudala <redacted>
---
  arch/arm/mach-exynos/clock-exynos5.c |    7 ++++++-
  1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-exynos/clock-exynos5.c

b/arch/arm/mach-exynos/clock-exynos5.c
index 774533c..f001876 100644

--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c

@@ -634,6 +634,11 @@ static struct clk exynos5_init_clocks_off[] = {
          .enable        = exynos5_clk_ip_disp1_ctrl,
          .ctrlbit    = (1 << 3),
      }, {
+        .name           = "fimd",
+        .devname        = "exynos5-fb",
+        .enable         = exynos5_clk_ip_disp1_ctrl,
+        .ctrlbit        = (1 << 0),
+    }, {

With this patch, it causes below error at the DP driver because fimd
clock is disabled.

[    0.210000] exynos-dp exynos-dp: Timeout of video streamclk ok
[    0.210000] exynos-dp exynos-dp: unable to config video
[    0.210000] exynos-dp: probe of exynos-dp failed with error -110

I wonder fimd clock has any dependency with DP

FIMD pixel clock is necessary to enable DP.

Best regards,
Jingoo Han

Thanks.