Re: [PATCH v3 2/2] clk: amlogic: add video-related clocks for S4 SoC

From: Chuan Liu
Date: Fri Sep 05 2025 - 05:30:43 EST


Hi Krzysztof:

        Sorry, I forgot to add your 'Acked-by' tag in this version.

Please ignore this patch for now. I will re-add it in the next revision.


On 9/5/2025 5:06 PM, Chuan Liu via B4 Relay wrote:
[ EXTERNAL EMAIL ]

From: Chuan Liu<chuan.liu@xxxxxxxxxxx>

Add video encoder, demodulator and CVBS clocks.

Signed-off-by: Chuan Liu<chuan.liu@xxxxxxxxxxx>
---
drivers/clk/meson/s4-peripherals.c | 203 +++++++++++++++++++++++++++++++++++++
1 file changed, 203 insertions(+)

diff --git a/drivers/clk/meson/s4-peripherals.c b/drivers/clk/meson/s4-peripherals.c
index 6d69b132d1e1..c0f877ce0993 100644
--- a/drivers/clk/meson/s4-peripherals.c
+++ b/drivers/clk/meson/s4-peripherals.c
@@ -44,6 +44,7 @@
#define CLKCTRL_VDIN_MEAS_CLK_CTRL 0x0f8
#define CLKCTRL_VAPBCLK_CTRL 0x0fc
#define CLKCTRL_HDCP22_CTRL 0x100
+#define CLKCTRL_CDAC_CLK_CTRL 0x108
#define CLKCTRL_VDEC_CLK_CTRL 0x140
#define CLKCTRL_VDEC2_CLK_CTRL 0x144
#define CLKCTRL_VDEC3_CLK_CTRL 0x148
@@ -1126,6 +1127,22 @@ static struct clk_regmap s4_cts_encp_sel = {
},
};

+static struct clk_regmap s4_cts_encl_sel = {
+ .data = &(struct clk_regmap_mux_data){
+ .offset = CLKCTRL_VIID_CLK_DIV,
+ .mask = 0xf,
+ .shift = 12,
+ .table = mux_table_cts_sel,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cts_encl_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_hws = s4_cts_parent_hws,
+ .num_parents = ARRAY_SIZE(s4_cts_parent_hws),
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static struct clk_regmap s4_cts_vdac_sel = {
.data = &(struct clk_regmap_mux_data){
.offset = CLKCTRL_VIID_CLK_DIV,
@@ -1205,6 +1222,22 @@ static struct clk_regmap s4_cts_encp = {
},
};

+static struct clk_regmap s4_cts_encl = {
+ .data = &(struct clk_regmap_gate_data){
+ .offset = CLKCTRL_VID_CLK_CTRL2,
+ .bit_idx = 3,
+ },
+ .hw.init = &(struct clk_init_data) {
+ .name = "cts_encl",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_cts_encl_sel.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static struct clk_regmap s4_cts_vdac = {
.data = &(struct clk_regmap_gate_data){
.offset = CLKCTRL_VID_CLK_CTRL2,
@@ -2735,6 +2768,165 @@ static struct clk_regmap s4_gen_clk = {
},
};

+/* CVBS DAC */
+static struct clk_regmap s4_cdac_sel = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = CLKCTRL_CDAC_CLK_CTRL,
+ .mask = 0x3,
+ .shift = 16,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cdac_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "xtal", },
+ { .fw_name = "fclk_div5" },
+ },
+ .num_parents = 2,
+ },
+};
+
+static struct clk_regmap s4_cdac_div = {
+ .data = &(struct clk_regmap_div_data) {
+ .offset = CLKCTRL_CDAC_CLK_CTRL,
+ .shift = 0,
+ .width = 16,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cdac_div",
+ .ops = &clk_regmap_divider_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_cdac_sel.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap s4_cdac = {
+ .data = &(struct clk_regmap_gate_data) {
+ .offset = CLKCTRL_CDAC_CLK_CTRL,
+ .bit_idx = 20,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "cdac",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_cdac_div.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap s4_demod_core_sel = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .mask = 0x3,
+ .shift = 9,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "demod_core_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "xtal" },
+ { .fw_name = "fclk_div7" },
+ { .fw_name = "fclk_div4" }
+ },
+ .num_parents = 3,
+ },
+};
+
+static struct clk_regmap s4_demod_core_div = {
+ .data = &(struct clk_regmap_div_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .shift = 0,
+ .width = 7,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "demod_core_div",
+ .ops = &clk_regmap_divider_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_demod_core_sel.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap s4_demod_core = {
+ .data = &(struct clk_regmap_gate_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .bit_idx = 8
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "demod_core",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_demod_core_div.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+/* CVBS ADC */
+static struct clk_regmap s4_adc_extclk_in_sel = {
+ .data = &(struct clk_regmap_mux_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .mask = 0x7,
+ .shift = 25,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "adc_extclk_in_sel",
+ .ops = &clk_regmap_mux_ops,
+ .parent_data = (const struct clk_parent_data []) {
+ { .fw_name = "xtal" },
+ { .fw_name = "fclk_div4" },
+ { .fw_name = "fclk_div3" },
+ { .fw_name = "fclk_div5" },
+ { .fw_name = "fclk_div7" },
+ { .fw_name = "mpll2" },
+ { .fw_name = "gp0_pll" },
+ { .fw_name = "hifi_pll" }
+ },
+ .num_parents = 8,
+ },
+};
+
+static struct clk_regmap s4_adc_extclk_in_div = {
+ .data = &(struct clk_regmap_div_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .shift = 16,
+ .width = 7,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "adc_extclk_in_div",
+ .ops = &clk_regmap_divider_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_adc_extclk_in_sel.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap s4_adc_extclk_in = {
+ .data = &(struct clk_regmap_gate_data) {
+ .offset = CLKCTRL_DEMOD_CLK_CTRL,
+ .bit_idx = 24
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "adc_extclk_in",
+ .ops = &clk_regmap_gate_ops,
+ .parent_hws = (const struct clk_hw *[]) {
+ &s4_adc_extclk_in_div.hw
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static const struct clk_parent_data s4_pclk_parents = { .hw = &s4_sys_clk.hw };

#define S4_PCLK(_name, _reg, _bit, _flags) \
@@ -3028,6 +3220,17 @@ static struct clk_hw *s4_peripherals_hw_clks[] = {
[CLKID_HDCP22_SKPCLK_SEL] = &s4_hdcp22_skpclk_sel.hw,
[CLKID_HDCP22_SKPCLK_DIV] = &s4_hdcp22_skpclk_div.hw,
[CLKID_HDCP22_SKPCLK] = &s4_hdcp22_skpclk.hw,
+ [CLKID_CTS_ENCL_SEL] = &s4_cts_encl_sel.hw,
+ [CLKID_CTS_ENCL] = &s4_cts_encl.hw,
+ [CLKID_CDAC_SEL] = &s4_cdac_sel.hw,
+ [CLKID_CDAC_DIV] = &s4_cdac_div.hw,
+ [CLKID_CDAC] = &s4_cdac.hw,
+ [CLKID_DEMOD_CORE_SEL] = &s4_demod_core_sel.hw,
+ [CLKID_DEMOD_CORE_DIV] = &s4_demod_core_div.hw,
+ [CLKID_DEMOD_CORE] = &s4_demod_core.hw,
+ [CLKID_ADC_EXTCLK_IN_SEL] = &s4_adc_extclk_in_sel.hw,
+ [CLKID_ADC_EXTCLK_IN_DIV] = &s4_adc_extclk_in_div.hw,
+ [CLKID_ADC_EXTCLK_IN] = &s4_adc_extclk_in.hw,
};

static const struct meson_clkc_data s4_peripherals_clkc_data = {

--
2.42.0