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authorNeil Armstrong <narmstrong@baylibre.com>2020-09-15 14:45:53 +0200
committerJerome Brunet <jbrunet@baylibre.com>2020-11-23 09:08:22 +0100
commite80d8510ffef3a9d2b2ce15882f5fd004d1e1645 (patch)
tree0b1af232217464c8475c66f97200650dd50d0794 /drivers/clk/meson
parent14ebb3154b8f3d562cb18331b08ff1a22609ae59 (diff)
clk: meson: axg: add MIPI DSI Host clock
This adds the MIPI DSI Host clock, used to measure the signal timings (ENC VSYNC or DW-MIPI-DSI eDPI timings). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200915124553.8056-5-narmstrong@baylibre.com
Diffstat (limited to 'drivers/clk/meson')
-rw-r--r--drivers/clk/meson/axg.c66
-rw-r--r--drivers/clk/meson/axg.h4
2 files changed, 69 insertions, 1 deletions
diff --git a/drivers/clk/meson/axg.c b/drivers/clk/meson/axg.c
index a4e8949297cf..089a81ce2385 100644
--- a/drivers/clk/meson/axg.c
+++ b/drivers/clk/meson/axg.c
@@ -1703,6 +1703,66 @@ static struct clk_regmap axg_cts_encl = {
},
};
+/* MIPI DSI Host Clock */
+
+static u32 mux_table_axg_vdin_meas[] = { 0, 1, 2, 3, 6, 7 };
+static const struct clk_parent_data axg_vdin_meas_parent_data[] = {
+ { .fw_name = "xtal", },
+ { .hw = &axg_fclk_div4.hw },
+ { .hw = &axg_fclk_div3.hw },
+ { .hw = &axg_fclk_div5.hw },
+ { .hw = &axg_fclk_div2.hw },
+ { .hw = &axg_fclk_div7.hw },
+};
+
+static struct clk_regmap axg_vdin_meas_sel = {
+ .data = &(struct clk_regmap_mux_data){
+ .offset = HHI_VDIN_MEAS_CLK_CNTL,
+ .mask = 0x7,
+ .shift = 21,
+ .flags = CLK_MUX_ROUND_CLOSEST,
+ .table = mux_table_axg_vdin_meas,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "vdin_meas_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = axg_vdin_meas_parent_data,
+ .num_parents = ARRAY_SIZE(axg_vdin_meas_parent_data),
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_vdin_meas_div = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_VDIN_MEAS_CLK_CNTL,
+ .shift = 12,
+ .width = 7,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "vdin_meas_div",
+ .ops = &clk_regmap_divider_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_vdin_meas_sel.hw },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_vdin_meas = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = HHI_VDIN_MEAS_CLK_CNTL,
+ .bit_idx = 20,
+ },
+ .hw.init = &(struct clk_init_data) {
+ .name = "vdin_meas",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &axg_vdin_meas_div.hw },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static u32 mux_table_gen_clk[] = { 0, 4, 5, 6, 7, 8,
9, 10, 11, 13, 14, };
static const struct clk_parent_data gen_clk_parent_data[] = {
@@ -1966,6 +2026,9 @@ static struct clk_hw_onecell_data axg_hw_onecell_data = {
[CLKID_VCLK2_DIV12] = &axg_vclk2_div12.hw,
[CLKID_CTS_ENCL_SEL] = &axg_cts_encl_sel.hw,
[CLKID_CTS_ENCL] = &axg_cts_encl.hw,
+ [CLKID_VDIN_MEAS_SEL] = &axg_vdin_meas_sel.hw,
+ [CLKID_VDIN_MEAS_DIV] = &axg_vdin_meas_div.hw,
+ [CLKID_VDIN_MEAS] = &axg_vdin_meas.hw,
[NR_CLKS] = NULL,
},
.num = NR_CLKS,
@@ -2094,6 +2157,9 @@ static struct clk_regmap *const axg_clk_regmaps[] = {
&axg_vclk2_div12_en,
&axg_cts_encl_sel,
&axg_cts_encl,
+ &axg_vdin_meas_sel,
+ &axg_vdin_meas_div,
+ &axg_vdin_meas,
};
static const struct meson_eeclkc_data axg_clkc_data = {
diff --git a/drivers/clk/meson/axg.h b/drivers/clk/meson/axg.h
index a8787b394a47..481b307ea3cb 100644
--- a/drivers/clk/meson/axg.h
+++ b/drivers/clk/meson/axg.h
@@ -158,8 +158,10 @@
#define CLKID_VCLK2_DIV6_EN 120
#define CLKID_VCLK2_DIV12_EN 121
#define CLKID_CTS_ENCL_SEL 132
+#define CLKID_VDIN_MEAS_SEL 134
+#define CLKID_VDIN_MEAS_DIV 135
-#define NR_CLKS 134
+#define NR_CLKS 137
/* include the CLKIDs that have been made part of the DT binding */
#include <dt-bindings/clock/axg-clkc.h>