From mboxrd@z Thu Jan 1 00:00:00 1970 From: rahul.sharma@samsung.com (Rahul Sharma) Date: Thu, 25 Jul 2013 10:37:34 +0530 Subject: [PATCH v4 3/6] clk/exynos5250: add mout_hdmi mux clock for hdmi In-Reply-To: <1374728857-4208-1-git-send-email-rahul.sharma@samsung.com> References: <1374728857-4208-1-git-send-email-rahul.sharma@samsung.com> Message-ID: <1374728857-4208-4-git-send-email-rahul.sharma@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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 bea503f..b3dfcad 100644 --- a/Documentation/devicetree/bindings/clock/exynos5250-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos5250-clock.txt @@ -158,6 +158,14 @@ 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 at 0x10010000 { diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 6f767c5..df44419 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -101,6 +101,9 @@ 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, }; @@ -232,7 +235,7 @@ 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