linux-kernel - Re: [PATCH RFC v2 05/14] ARM: imx6q: clk: Add the video

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Message-ID: <1418898675.4212.10.camel@pengutronix.de>
Date:	Thu, 18 Dec 2014 11:31:15 +0100
From:	Philipp Zabel <p.zabel@...gutronix.de>
To:	Liu Ying <Ying.Liu@...escale.com>
Cc:	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux@....linux.org.uk,
	kernel@...gutronix.de, thierry.reding@...il.com,
	shawn.guo@...aro.org, mturquette@...aro.org, airlied@...ux.ie,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC v2 05/14] ARM: imx6q: clk: Add the video_27m clock

Am Donnerstag, den 18.12.2014, 15:11 +0800 schrieb Liu Ying:
> This patch supports the video_27m clock which is a fixed factor
> clock of the pll3_pfd1_540m clock.
> 
> Signed-off-by: Liu Ying <Ying.Liu@...escale.com>
> ---
> v1->v2:
>  * None.
> 
>  arch/arm/mach-imx/clk-imx6q.c             | 1 +
>  include/dt-bindings/clock/imx6qdl-clock.h | 3 ++-
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
> index 4e79da7..9470df3 100644
> --- a/arch/arm/mach-imx/clk-imx6q.c
> +++ b/arch/arm/mach-imx/clk-imx6q.c
> @@ -246,6 +246,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
>  	clk[IMX6QDL_CLK_PLL3_60M]  = imx_clk_fixed_factor("pll3_60m",  "pll3_usb_otg",   1, 8);
>  	clk[IMX6QDL_CLK_TWD]       = imx_clk_fixed_factor("twd",       "arm",            1, 2);
>  	clk[IMX6QDL_CLK_GPT_3M]    = imx_clk_fixed_factor("gpt_3m",    "osc",            1, 8);
> +	clk[IMX6QDL_CLK_VIDEO_27M] = imx_clk_fixed_factor("video_27m", "pll3_pfd1_540m", 1, 20);

The HDMI TX isfr clock input is sourced from video_27m, too, according
to Table 33-1 "HDMI clocks".
I think the parent of clk[IMX6QDL_CLK_HDMI_ISFR] should be changed from
"pll3_pfd1_540m" to "video_27m", then.

regards
Philipp

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