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clk: samsung: exynos5250: Add DISP1 clocks
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When the DISP1 power domain is powered off, there's two clocks that need
to be temporarily reparented to OSC, and back to their original parents
when the domain is powered on again.

We expose these two clocks in the DT bindings so that the DT node of the
power domain can reference them.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
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tomeuv authored and Kukjin Kim committed Oct 23, 2015
1 parent b29dd5f commit b4dc272
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Showing 2 changed files with 16 additions and 2 deletions.
14 changes: 13 additions & 1 deletion drivers/clk/samsung/clk-exynos5250.c
View file
Expand Up @@ -222,9 +222,13 @@ PNAME(mout_mpll_user_p) = { "fin_pll", "mout_mpll" };
PNAME(mout_bpll_user_p) = { "fin_pll", "mout_bpll" };
PNAME(mout_aclk166_p) = { "mout_cpll", "mout_mpll_user" };
PNAME(mout_aclk200_p) = { "mout_mpll_user", "mout_bpll_user" };
PNAME(mout_aclk300_p) = { "mout_aclk300_disp1_mid",
"mout_aclk300_disp1_mid1" };
PNAME(mout_aclk400_p) = { "mout_aclk400_g3d_mid", "mout_gpll" };
PNAME(mout_aclk200_sub_p) = { "fin_pll", "div_aclk200" };
PNAME(mout_aclk266_sub_p) = { "fin_pll", "div_aclk266" };
PNAME(mout_aclk300_sub_p) = { "fin_pll", "div_aclk300_disp" };
PNAME(mout_aclk300_disp1_mid1_p) = { "mout_vpll", "mout_cpll" };
PNAME(mout_aclk333_sub_p) = { "fin_pll", "div_aclk333" };
PNAME(mout_aclk400_isp_sub_p) = { "fin_pll", "div_aclk400_isp" };
PNAME(mout_hdmi_p) = { "div_hdmi_pixel", "sclk_hdmiphy" };
Expand Down Expand Up @@ -303,9 +307,13 @@ static struct samsung_mux_clock exynos5250_mux_clks[] __initdata = {
*/
MUX(0, "mout_aclk166", mout_aclk166_p, SRC_TOP0, 8, 1),
MUX(0, "mout_aclk200", mout_aclk200_p, SRC_TOP0, 12, 1),
MUX(0, "mout_aclk300_disp1_mid", mout_aclk200_p, SRC_TOP0, 14, 1),
MUX(0, "mout_aclk300", mout_aclk300_p, SRC_TOP0, 15, 1),
MUX(0, "mout_aclk333", mout_aclk166_p, SRC_TOP0, 16, 1),
MUX(0, "mout_aclk400_g3d_mid", mout_aclk200_p, SRC_TOP0, 20, 1),

MUX(0, "mout_aclk300_disp1_mid1", mout_aclk300_disp1_mid1_p, SRC_TOP1,
8, 1),
MUX(0, "mout_aclk400_isp", mout_aclk200_p, SRC_TOP1, 24, 1),
MUX(0, "mout_aclk400_g3d", mout_aclk400_p, SRC_TOP1, 28, 1),

Expand All @@ -316,7 +324,10 @@ static struct samsung_mux_clock exynos5250_mux_clks[] __initdata = {
MUX(0, "mout_bpll_user", mout_bpll_user_p, SRC_TOP2, 24, 1),
MUX(CLK_MOUT_GPLL, "mout_gpll", mout_gpll_p, SRC_TOP2, 28, 1),

MUX(0, "mout_aclk200_disp1_sub", mout_aclk200_sub_p, SRC_TOP3, 4, 1),
MUX(CLK_MOUT_ACLK200_DISP1_SUB, "mout_aclk200_disp1_sub",
mout_aclk200_sub_p, SRC_TOP3, 4, 1),
MUX(CLK_MOUT_ACLK300_DISP1_SUB, "mout_aclk300_disp1_sub",
mout_aclk300_sub_p, SRC_TOP3, 6, 1),
MUX(0, "mout_aclk266_gscl_sub", mout_aclk266_sub_p, SRC_TOP3, 8, 1),
MUX(0, "mout_aclk_266_isp_sub", mout_aclk266_sub_p, SRC_TOP3, 16, 1),
MUX(0, "mout_aclk_400_isp_sub", mout_aclk400_isp_sub_p,
Expand Down Expand Up @@ -392,6 +403,7 @@ static struct samsung_div_clock exynos5250_div_clks[] __initdata = {
DIV(0, "div_aclk333", "mout_aclk333", DIV_TOP0, 20, 3),
DIV(0, "div_aclk400_g3d", "mout_aclk400_g3d", DIV_TOP0,
24, 3),
DIV(0, "div_aclk300_disp", "mout_aclk300", DIV_TOP0, 28, 3),

DIV(0, "div_aclk400_isp", "mout_aclk400_isp", DIV_TOP1, 20, 3),
DIV(0, "div_aclk66_pre", "mout_mpll_user", DIV_TOP1, 24, 3),
Expand Down
4 changes: 3 additions & 1 deletion include/dt-bindings/clock/exynos5250.h
View file
Expand Up @@ -173,8 +173,10 @@
/* mux clocks */
#define CLK_MOUT_HDMI 1024
#define CLK_MOUT_GPLL 1025
#define CLK_MOUT_ACLK200_DISP1_SUB 1026
#define CLK_MOUT_ACLK300_DISP1_SUB 1027

/* must be greater than maximal clock id */
#define CLK_NR_CLKS 1026
#define CLK_NR_CLKS 1028

#endif /* _DT_BINDINGS_CLOCK_EXYNOS_5250_H */

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