From 8856010029985ba4d63a8942deb7f9e780285dd2 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 24 Jan 2015 13:25:01 +0900 Subject: clk: exynos5420: Add IDs for clocks used in DISP1 power domain When a power domain is powered off on Exynos5420 SoC, the input clocks of the devices attached to this power domain are re-parented to oscclk and restored to the original parent after powering on the power domain. So a reference to the input and parent clocks for the devices attached to a power domain are needed to be able to do the re-parenting. The DISP1 pd includes modules which uses the following clocks: ACLK_200_DISP1 (MIXER and HDMILINK) ACLK_300_DISP1 (FIMD1) ACLK_400_DISP1 (Internal Buses) Each of these clocks are generated as the output of a clock mux so add an ID for all of these clock muxes and their parents to be referenced in the DISP1 power domain device node. Signed-off-by: Javier Martinez Canillas Acked-by: Sylwester Nawrocki Acked-by: Michael Turquette Signed-off-by: Kukjin Kim --- drivers/clk/samsung/clk-exynos5420.c | 23 ++++++++++++----------- include/dt-bindings/clock/exynos5420.h | 6 ++++++ 2 files changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 848d602efc06..07d666cc6a29 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -635,8 +635,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { SRC_TOP3, 0, 1), MUX(0, "mout_user_aclk400_mscl", mout_user_aclk400_mscl_p, SRC_TOP3, 4, 1), - MUX(0, "mout_user_aclk200_disp1", mout_user_aclk200_disp1_p, - SRC_TOP3, 8, 1), + MUX(CLK_MOUT_USER_ACLK200_DISP1, "mout_user_aclk200_disp1", + mout_user_aclk200_disp1_p, SRC_TOP3, 8, 1), MUX(0, "mout_user_aclk200_fsys2", mout_user_aclk200_fsys2_p, SRC_TOP3, 12, 1), MUX(0, "mout_user_aclk400_wcore", mout_user_aclk400_wcore_p, @@ -663,8 +663,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { MUX(CLK_MOUT_USER_ACLK333, "mout_user_aclk333", mout_user_aclk333_p, SRC_TOP4, 28, 1), - MUX(0, "mout_user_aclk400_disp1", mout_user_aclk400_disp1_p, - SRC_TOP5, 0, 1), + MUX(CLK_MOUT_USER_ACLK400_DISP1, "mout_user_aclk400_disp1", + mout_user_aclk400_disp1_p, SRC_TOP5, 0, 1), MUX(0, "mout_user_aclk66_psgen", mout_user_aclk66_peric_p, SRC_TOP5, 4, 1), MUX(0, "mout_user_aclk333_g2d", mout_user_aclk333_g2d_p, @@ -675,8 +675,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { SRC_TOP5, 16, 1), MUX(0, "mout_user_aclk300_jpeg", mout_user_aclk300_jpeg_p, SRC_TOP5, 20, 1), - MUX(0, "mout_user_aclk300_disp1", mout_user_aclk300_disp1_p, - SRC_TOP5, 24, 1), + MUX(CLK_MOUT_USER_ACLK300_DISP1, "mout_user_aclk300_disp1", + mout_user_aclk300_disp1_p, SRC_TOP5, 24, 1), MUX(0, "mout_user_aclk300_gscl", mout_user_aclk300_gscl_p, SRC_TOP5, 28, 1), @@ -693,7 +693,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { SRC_TOP10, 0, 1), MUX(0, "mout_sw_aclk400_mscl", mout_sw_aclk400_mscl_p, SRC_TOP10, 4, 1), - MUX(0, "mout_sw_aclk200", mout_sw_aclk200_p, SRC_TOP10, 8, 1), + MUX(CLK_MOUT_SW_ACLK200, "mout_sw_aclk200", mout_sw_aclk200_p, + SRC_TOP10, 8, 1), MUX(0, "mout_sw_aclk200_fsys2", mout_sw_aclk200_fsys2_p, SRC_TOP10, 12, 1), MUX(0, "mout_sw_aclk400_wcore", mout_sw_aclk400_wcore_p, @@ -717,8 +718,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { MUX(CLK_MOUT_SW_ACLK333, "mout_sw_aclk333", mout_sw_aclk333_p, SRC_TOP11, 28, 1), - MUX(0, "mout_sw_aclk400_disp1", mout_sw_aclk400_disp1_p, - SRC_TOP12, 4, 1), + MUX(CLK_MOUT_SW_ACLK400, "mout_sw_aclk400_disp1", + mout_sw_aclk400_disp1_p, SRC_TOP12, 4, 1), MUX(0, "mout_sw_aclk333_g2d", mout_sw_aclk333_g2d_p, SRC_TOP12, 8, 1), MUX(0, "mout_sw_aclk266_g2d", mout_sw_aclk266_g2d_p, @@ -726,8 +727,8 @@ static struct samsung_mux_clock exynos5x_mux_clks[] __initdata = { MUX(0, "mout_sw_aclk_g3d", mout_sw_aclk_g3d_p, SRC_TOP12, 16, 1), MUX(0, "mout_sw_aclk300_jpeg", mout_sw_aclk300_jpeg_p, SRC_TOP12, 20, 1), - MUX(0, "mout_sw_aclk300_disp1", mout_sw_aclk300_disp1_p, - SRC_TOP12, 24, 1), + MUX(CLK_MOUT_SW_ACLK300, "mout_sw_aclk300_disp1", + mout_sw_aclk300_disp1_p, SRC_TOP12, 24, 1), MUX(0, "mout_sw_aclk300_gscl", mout_sw_aclk300_gscl_p, SRC_TOP12, 28, 1), diff --git a/include/dt-bindings/clock/exynos5420.h b/include/dt-bindings/clock/exynos5420.h index 8dc0913f1775..99da0d117a7d 100644 --- a/include/dt-bindings/clock/exynos5420.h +++ b/include/dt-bindings/clock/exynos5420.h @@ -204,6 +204,12 @@ #define CLK_MOUT_MAUDIO0 643 #define CLK_MOUT_USER_ACLK333 644 #define CLK_MOUT_SW_ACLK333 645 +#define CLK_MOUT_USER_ACLK200_DISP1 646 +#define CLK_MOUT_SW_ACLK200 647 +#define CLK_MOUT_USER_ACLK300_DISP1 648 +#define CLK_MOUT_SW_ACLK300 649 +#define CLK_MOUT_USER_ACLK400_DISP1 650 +#define CLK_MOUT_SW_ACLK400 651 /* divider clocks */ #define CLK_DOUT_PIXEL 768 -- cgit v1.2.3 From ea08de16eb1ba2052ce2db4b58b62a2ec33357a3 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 24 Jan 2015 13:25:35 +0900 Subject: ARM: dts: Add DISP1 power domain for exynos5420 The DISP1 power domain on Exynos5420 SoC includes the FIMD1, MIXER and HDMI modules. Add a device node for this power domain and mark these modules as consumer of the DISP1 power domain. When a power domain is powered on and off, the input clocks of the devices attached to it are reparented. So a reference to the input and parent clocks of the devices are needed to manage that. Signed-off-by: Javier Martinez Canillas Signed-off-by: Kukjin Kim --- arch/arm/boot/dts/exynos5420.dtsi | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi index 03ef2481c640..a0a3b2829208 100644 --- a/arch/arm/boot/dts/exynos5420.dtsi +++ b/arch/arm/boot/dts/exynos5420.dtsi @@ -274,6 +274,20 @@ #power-domain-cells = <0>; }; + disp_pd: power-domain@100440C0 { + compatible = "samsung,exynos4210-pd"; + reg = <0x100440C0 0x20>; + #power-domain-cells = <0>; + clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MOUT_SW_ACLK200>, + <&clock CLK_MOUT_USER_ACLK200_DISP1>, + <&clock CLK_MOUT_SW_ACLK300>, + <&clock CLK_MOUT_USER_ACLK300_DISP1>, + <&clock CLK_MOUT_SW_ACLK400>, + <&clock CLK_MOUT_USER_ACLK400_DISP1>; + clock-names = "oscclk", "pclk0", "clk0", + "pclk1", "clk1", "pclk2", "clk2"; + }; + pinctrl_0: pinctrl@13400000 { compatible = "samsung,exynos5420-pinctrl"; reg = <0x13400000 0x1000>; @@ -541,6 +555,7 @@ fimd: fimd@14400000 { clocks = <&clock CLK_SCLK_FIMD1>, <&clock CLK_FIMD1>; clock-names = "sclk_fimd", "fimd"; + power-domains = <&disp_pd>; }; adc: adc@12D10000 { @@ -714,6 +729,7 @@ phy = <&hdmiphy>; samsung,syscon-phandle = <&pmu_system_controller>; status = "disabled"; + power-domains = <&disp_pd>; }; hdmiphy: hdmiphy@145D0000 { @@ -726,6 +742,7 @@ interrupts = <0 94 0>; clocks = <&clock CLK_MIXER>, <&clock CLK_SCLK_HDMI>; clock-names = "mixer", "sclk_hdmi"; + power-domains = <&disp_pd>; }; gsc_0: video-scaler@13e00000 { -- cgit v1.2.3