+Mike
On Mon, Jun 10, 2013 at 4:30 PM, Rahul Sharma <rahul.sharma@xxxxxxxxxxx> wrote:
> hdmi driver needs to change the parent of hdmi clock
> frequently between pixel clock and hdmiphy clock. hdmiphy is
> not stable after power on and for a short interval while changing
> the phy configuration. For this duration pixel clock is used to
> clock hdmi.
>
> This patch is exposing the mux for changing parent.
>
> Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/clock/exynos5250-clock.txt | 8 ++++++++
> drivers/clk/samsung/clk-exynos5250.c | 5 ++++-
> 2 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/clock/exynos5250-clock.txt b/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
> index 1a05761..b337147 100644
> --- a/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
> +++ b/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
> @@ -156,6 +156,14 @@ clock which they consume.
> mixer 343
> hdmi 344
>
> +
> + [Clock Muxes]
> +
> + Clock ID
> + ----------------------------
> + mout_hdmi 1024
> +
> +
> Example 1: An example of a clock controller node is listed below.
>
> clock: clock-controller@0x10010000 {
> diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c
> index 5c97e75..587d913 100644
> --- a/drivers/clk/samsung/clk-exynos5250.c
> +++ b/drivers/clk/samsung/clk-exynos5250.c
> @@ -100,6 +100,9 @@ enum exynos5250_clks {
> tzpc2, tzpc3, tzpc4, tzpc5, tzpc6, tzpc7, tzpc8, tzpc9, hdmi_cec, mct,
> wdt, rtc, tmu, fimd1, mie1, dsim0, dp, mixer, hdmi,
>
> + /* mux clocks */
> + mout_hdmi = 1024,
> +
> nr_clks,
> };
>
> @@ -231,7 +234,7 @@ struct samsung_mux_clock exynos5250_mux_clks[] __initdata = {
> MUX(none, "mout_fimd1", mout_group1_p, SRC_DISP1_0, 0, 4),
> MUX(none, "mout_mipi1", mout_group1_p, SRC_DISP1_0, 12, 4),
> MUX(none, "mout_dp", mout_group1_p, SRC_DISP1_0, 16, 4),
> - MUX(none, "mout_hdmi", mout_hdmi_p, SRC_DISP1_0, 20, 1),
> + MUX(mout_hdmi, "mout_hdmi", mout_hdmi_p, SRC_DISP1_0, 20, 1),
> MUX(none, "mout_audio0", mout_audio0_p, SRC_MAU, 0, 4),
> MUX(none, "mout_mmc0", mout_group1_p, SRC_FSYS, 0, 4),
> MUX(none, "mout_mmc1", mout_group1_p, SRC_FSYS, 4, 4),
> --
> 1.7.10.4
>
> --
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