From mboxrd@z Thu Jan  1 00:00:00 1970
From: jg1.han@samsung.com (Jingoo Han)
Date: Tue, 24 Jul 2012 08:14:22 +0900
Subject: [PATCH V2 6/7] ARM: EXYNOS5: Add the bus clock for FIMD
In-Reply-To: <500D1F59.9030807@samsung.com>
References: <1342591053-7092-1-git-send-email-l.krishna@samsung.com>
 <1342591053-7092-7-git-send-email-l.krishna@samsung.com>
 <500D0C8B.3080007@samsung.com> <500D1F59.9030807@samsung.com>
Message-ID: <000301cd6928$e5021660$af064320$%han@samsung.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Monday, July 23, 2012 6:55 PM, Joonyoung Shim wrote:
> 
> Hi, Jingoo.
> 
> On 07/23/2012 05:34 PM, Joonyoung Shim wrote:
> > On 07/18/2012 02:57 PM, Leela Krishna Amudala wrote:
> >> 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
> >
> >> Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
> >> ---
> >>   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.