clk: samsung: exynos5420: Add SET_RATE_PARENT flag to clocks on G3D path

Add CLK_SET_RATE_PARENT flag to all clocks on the path from VPLL to G3D,
so the G3D MALI driver can simply adjust the rate of its clock by doing
a single clk_set_rate() call, without the need to know the whole clock
topology in Exynos542x SoCs.

Suggested-by: Marian Mihailescu <mihailescu2m@gmail.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 53bbd65..3a991ca 100644 (file)
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -613,7 +613,8 @@ static const struct samsung_mux_clock exynos5x_mux_clks[] __initconst = {
        MUX(0, "mout_aclk66", mout_group1_p, SRC_TOP1, 8, 2),
        MUX(0, "mout_aclk166", mout_group1_p, SRC_TOP1, 24, 2),
 
-       MUX(0, "mout_aclk_g3d", mout_group5_p, SRC_TOP2, 16, 1),
+       MUX_F(0, "mout_aclk_g3d", mout_group5_p, SRC_TOP2, 16, 1,
+             CLK_SET_RATE_PARENT, 0),
 
        MUX(0, "mout_user_aclk400_isp", mout_user_aclk400_isp_p,
                        SRC_TOP3, 0, 1),
@@ -655,8 +656,8 @@ static const struct samsung_mux_clock exynos5x_mux_clks[] __initconst = {
                        SRC_TOP5, 8, 1),
        MUX(0, "mout_user_aclk266_g2d", mout_user_aclk266_g2d_p,
                        SRC_TOP5, 12, 1),
-       MUX(CLK_MOUT_G3D, "mout_user_aclk_g3d", mout_user_aclk_g3d_p,
-                       SRC_TOP5, 16, 1),
+       MUX_F(CLK_MOUT_G3D, "mout_user_aclk_g3d", mout_user_aclk_g3d_p,
+                       SRC_TOP5, 16, 1, CLK_SET_RATE_PARENT, 0),
        MUX(0, "mout_user_aclk300_jpeg", mout_user_aclk300_jpeg_p,
                        SRC_TOP5, 20, 1),
        MUX(CLK_MOUT_USER_ACLK300_DISP1, "mout_user_aclk300_disp1",
@@ -665,7 +666,8 @@ static const struct samsung_mux_clock exynos5x_mux_clks[] __initconst = {
                        mout_user_aclk300_gscl_p, SRC_TOP5, 28, 1),
 
        MUX(0, "mout_sclk_mpll", mout_mpll_p, SRC_TOP6, 0, 1),
-       MUX(CLK_MOUT_VPLL, "mout_sclk_vpll", mout_vpll_p, SRC_TOP6, 4, 1),
+       MUX_F(CLK_MOUT_VPLL, "mout_sclk_vpll", mout_vpll_p, SRC_TOP6, 4, 1,
+             CLK_SET_RATE_PARENT, 0),
        MUX(CLK_MOUT_SCLK_SPLL, "mout_sclk_spll", mout_spll_p, SRC_TOP6, 8, 1),
        MUX(0, "mout_sclk_ipll", mout_ipll_p, SRC_TOP6, 12, 1),
        MUX(0, "mout_sclk_rpll", mout_rpll_p, SRC_TOP6, 16, 1),
@@ -709,7 +711,8 @@ static const struct samsung_mux_clock exynos5x_mux_clks[] __initconst = {
                        SRC_TOP12, 8, 1),
        MUX(0, "mout_sw_aclk266_g2d", mout_sw_aclk266_g2d_p,
                        SRC_TOP12, 12, 1),
-       MUX(0, "mout_sw_aclk_g3d", mout_sw_aclk_g3d_p, SRC_TOP12, 16, 1),
+       MUX_F(0, "mout_sw_aclk_g3d", mout_sw_aclk_g3d_p, SRC_TOP12, 16, 1,
+             CLK_SET_RATE_PARENT, 0),
        MUX(0, "mout_sw_aclk300_jpeg", mout_sw_aclk300_jpeg_p,
                        SRC_TOP12, 20, 1),
        MUX(CLK_MOUT_SW_ACLK300, "mout_sw_aclk300_disp1",
@@ -806,8 +809,8 @@ static const struct samsung_div_clock exynos5x_div_clks[] __initconst = {
                        DIV_TOP2, 8, 3),
        DIV(CLK_DOUT_ACLK266_G2D, "dout_aclk266_g2d", "mout_aclk266_g2d",
                        DIV_TOP2, 12, 3),
-       DIV(CLK_DOUT_ACLK_G3D, "dout_aclk_g3d", "mout_aclk_g3d", DIV_TOP2,
-                       16, 3),
+       DIV_F(CLK_DOUT_ACLK_G3D, "dout_aclk_g3d", "mout_aclk_g3d", DIV_TOP2,
+                       16, 3, CLK_SET_RATE_PARENT, 0),
        DIV(CLK_DOUT_ACLK300_JPEG, "dout_aclk300_jpeg", "mout_aclk300_jpeg",
                        DIV_TOP2, 20, 3),
        DIV(CLK_DOUT_ACLK300_DISP1, "dout_aclk300_disp1",
@@ -1255,7 +1258,8 @@ static struct exynos5_subcmu_reg_dump exynos5x_gsc_suspend_regs[] = {
 };
 
 static const struct samsung_gate_clock exynos5x_g3d_gate_clks[] __initconst = {
-       GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9, 0, 0),
+       GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9,
+            CLK_SET_RATE_PARENT, 0),
 };
 
 static struct exynos5_subcmu_reg_dump exynos5x_g3d_suspend_regs[] = {