In order to setup the DSI clock, let's make the unused VCLK2 clock path configuration via CCF. The nocache option is removed from following clocks: - vclk2_sel - vclk2_input - vclk2_div - vclk2 - vclk_div1 - vclk2_div2_en - vclk2_div4_en - vclk2_div6_en - vclk2_div12_en - vclk2_div2 - vclk2_div4 - vclk2_div6 - vclk2_div12 - cts_encl_sel vclk2 and vclk2_div uses the newly introduced vclk regmap driver to handle the enable and reset bits. In order to set a rate on cts_encl via the vclk2 clock path, the NO_REPARENT flag is set on cts_encl_sel & vclk2_sel in order to keep CCF from selection a parent. The parents of cts_encl_sel & vclk2_sel are expected to be defined in DT. The following clock scheme is to be used for DSI: xtal \_ gp0_pll_dco \_ gp0_pll |- vclk2_sel | \_ vclk2_input | \_ vclk2_div | \_ vclk2 | \_ vclk2_div1 | \_ cts_encl_sel | \_ cts_encl -> to VPU LCD Encoder |- mipi_dsi_pxclk_sel \_ mipi_dsi_pxclk_div \_ mipi_dsi_pxclk -> to DSI controller The mipi_dsi_pxclk_div is set as RO in order to use the same GP0 for mipi_dsi_pxclk and vclk2_input. Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- drivers/clk/meson/g12a.c | 68 +++++++++++++++++++++++++++++++++--------------- 1 file changed, 47 insertions(+), 21 deletions(-) diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c index cadd824336ad..fb3d9196a1fd 100644 --- a/drivers/clk/meson/g12a.c +++ b/drivers/clk/meson/g12a.c @@ -22,6 +22,7 @@ #include "clk-regmap.h" #include "clk-cpu-dyndiv.h" #include "vid-pll-div.h" +#include "vclk.h" #include "meson-eeclk.h" #include "g12a.h" @@ -3165,7 +3166,7 @@ static struct clk_regmap g12a_vclk2_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_vclk_parent_hws, .num_parents = ARRAY_SIZE(g12a_vclk_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT | CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, }, }; @@ -3193,7 +3194,7 @@ static struct clk_regmap g12a_vclk2_input = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_sel.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3215,19 +3216,32 @@ static struct clk_regmap g12a_vclk_div = { }; static struct clk_regmap g12a_vclk2_div = { - .data = &(struct clk_regmap_div_data){ - .offset = HHI_VIID_CLK_DIV, - .shift = 0, - .width = 8, + .data = &(struct clk_regmap_vclk_div_data){ + .div = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 0, + .width = 8, + }, + .enable = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 16, + .width = 1, + }, + .reset = { + .reg_off = HHI_VIID_CLK_DIV, + .shift = 17, + .width = 1, + }, + .flags = CLK_DIVIDER_ROUND_CLOSEST, }, .hw.init = &(struct clk_init_data){ .name = "vclk2_div", - .ops = &clk_regmap_divider_ops, + .ops = &clk_regmap_vclk_div_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_input.hw }, .num_parents = 1, - .flags = CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, }, }; @@ -3246,16 +3260,24 @@ static struct clk_regmap g12a_vclk = { }; static struct clk_regmap g12a_vclk2 = { - .data = &(struct clk_regmap_gate_data){ - .offset = HHI_VIID_CLK_CNTL, - .bit_idx = 19, + .data = &(struct clk_regmap_vclk_data){ + .enable = { + .reg_off = HHI_VIID_CLK_CNTL, + .shift = 19, + .width = 1, + }, + .reset = { + .reg_off = HHI_VIID_CLK_CNTL, + .shift = 15, + .width = 1, + }, }, .hw.init = &(struct clk_init_data) { .name = "vclk2", - .ops = &clk_regmap_gate_ops, + .ops = &clk_regmap_vclk_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2_div.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, }, }; @@ -3339,7 +3361,7 @@ static struct clk_regmap g12a_vclk2_div1 = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3353,7 +3375,7 @@ static struct clk_regmap g12a_vclk2_div2_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3367,7 +3389,7 @@ static struct clk_regmap g12a_vclk2_div4_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3381,7 +3403,7 @@ static struct clk_regmap g12a_vclk2_div6_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3395,7 +3417,7 @@ static struct clk_regmap g12a_vclk2_div12_en = { .ops = &clk_regmap_gate_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_vclk2.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3461,6 +3483,7 @@ static struct clk_fixed_factor g12a_vclk2_div2 = { &g12a_vclk2_div2_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3474,6 +3497,7 @@ static struct clk_fixed_factor g12a_vclk2_div4 = { &g12a_vclk2_div4_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3487,6 +3511,7 @@ static struct clk_fixed_factor g12a_vclk2_div6 = { &g12a_vclk2_div6_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3500,6 +3525,7 @@ static struct clk_fixed_factor g12a_vclk2_div12 = { &g12a_vclk2_div12_en.hw }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, }, }; @@ -3561,7 +3587,7 @@ static struct clk_regmap g12a_cts_encl_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_cts_parent_hws, .num_parents = ARRAY_SIZE(g12a_cts_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT | CLK_GET_RATE_NOCACHE, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, }, }; @@ -3717,7 +3743,7 @@ static struct clk_regmap g12a_mipi_dsi_pxclk_sel = { .ops = &clk_regmap_mux_ops, .parent_hws = g12a_mipi_dsi_pxclk_parent_hws, .num_parents = ARRAY_SIZE(g12a_mipi_dsi_pxclk_parent_hws), - .flags = CLK_SET_RATE_NO_REPARENT, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, }, }; @@ -3729,7 +3755,7 @@ static struct clk_regmap g12a_mipi_dsi_pxclk_div = { }, .hw.init = &(struct clk_init_data){ .name = "mipi_dsi_pxclk_div", - .ops = &clk_regmap_divider_ops, + .ops = &clk_regmap_divider_ro_ops, .parent_hws = (const struct clk_hw *[]) { &g12a_mipi_dsi_pxclk_sel.hw }, -- 2.34.1