clk: meson: meson8b: add the cts_mclk_i958 clocks

Add the SPDIF master clock also referred as cts_mclk_i958. The setup for
this clock is identical to GXBB, so this ports commit 3c277c24
("clk: meson: gxbb: add cts_mclk_i958") to the Meson8/Meson8b/Meson8m2
clock driver.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

drivers/clk/meson/meson8b.c

@@ -2206,6 +2206,59 @@ static struct clk_regmap meson8b_cts_amclk = {
 	},
 };
 
+/* TODO: the clock at index 0 is "DDR_PLL" which we don't support yet */
+static const char * const meson8b_cts_mclk_i958_parent_names[] = {
+	"mpll0", "mpll1", "mpll2"
+};
+
+static u32 meson8b_cts_mclk_i958_mux_table[] = { 1, 2, 3 };
+
+static struct clk_regmap meson8b_cts_mclk_i958_sel = {
+	.data = &(struct clk_regmap_mux_data){
+		.offset = HHI_AUD_CLK_CNTL2,
+		.mask = 0x3,
+		.shift = 25,
+		.table = meson8b_cts_mclk_i958_mux_table,
+		.flags = CLK_MUX_ROUND_CLOSEST,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "cts_mclk_i958_sel",
+		.ops = &clk_regmap_mux_ops,
+		.parent_names = meson8b_cts_mclk_i958_parent_names,
+		.num_parents = ARRAY_SIZE(meson8b_cts_mclk_i958_parent_names),
+	},
+};
+
+static struct clk_regmap meson8b_cts_mclk_i958_div = {
+	.data = &(struct clk_regmap_div_data){
+		.offset = HHI_AUD_CLK_CNTL2,
+		.shift = 16,
+		.width = 8,
+		.flags = CLK_DIVIDER_ROUND_CLOSEST,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "cts_mclk_i958_div",
+		.ops = &clk_regmap_divider_ops,
+		.parent_names = (const char *[]){ "cts_mclk_i958_sel" },
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap meson8b_cts_mclk_i958 = {
+	.data = &(struct clk_regmap_gate_data){
+		.offset = HHI_AUD_CLK_CNTL2,
+		.bit_idx = 24,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "cts_mclk_i958",
+		.ops = &clk_regmap_gate_ops,
+		.parent_names = (const char *[]){ "cts_mclk_i958_div" },
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
 /* Everything Else (EE) domain gates */
 
 static MESON_GATE(meson8b_ddr, HHI_GCLK_MPEG0, 0);
@@ -2488,6 +2541,9 @@ static struct clk_hw_onecell_data meson8_hw_onecell_data = {
 		[CLKID_CTS_AMCLK_SEL]	    = &meson8b_cts_amclk_sel.hw,
 		[CLKID_CTS_AMCLK_DIV]	    = &meson8b_cts_amclk_div.hw,
 		[CLKID_CTS_AMCLK]	    = &meson8b_cts_amclk.hw,
+		[CLKID_CTS_MCLK_I958_SEL]   = &meson8b_cts_mclk_i958_sel.hw,
+		[CLKID_CTS_MCLK_I958_DIV]   = &meson8b_cts_mclk_i958_div.hw,
+		[CLKID_CTS_MCLK_I958]	    = &meson8b_cts_mclk_i958.hw,
 		[CLK_NR_CLKS]		    = NULL,
 	},
 	.num = CLK_NR_CLKS,
@@ -2700,6 +2756,9 @@ static struct clk_hw_onecell_data meson8b_hw_onecell_data = {
 		[CLKID_CTS_AMCLK_SEL]	    = &meson8b_cts_amclk_sel.hw,
 		[CLKID_CTS_AMCLK_DIV]	    = &meson8b_cts_amclk_div.hw,
 		[CLKID_CTS_AMCLK]	    = &meson8b_cts_amclk.hw,
+		[CLKID_CTS_MCLK_I958_SEL]   = &meson8b_cts_mclk_i958_sel.hw,
+		[CLKID_CTS_MCLK_I958_DIV]   = &meson8b_cts_mclk_i958_div.hw,
+		[CLKID_CTS_MCLK_I958]	    = &meson8b_cts_mclk_i958.hw,
 		[CLK_NR_CLKS]		    = NULL,
 	},
 	.num = CLK_NR_CLKS,
@@ -2914,6 +2973,9 @@ static struct clk_hw_onecell_data meson8m2_hw_onecell_data = {
 		[CLKID_CTS_AMCLK_SEL]	    = &meson8b_cts_amclk_sel.hw,
 		[CLKID_CTS_AMCLK_DIV]	    = &meson8b_cts_amclk_div.hw,
 		[CLKID_CTS_AMCLK]	    = &meson8b_cts_amclk.hw,
+		[CLKID_CTS_MCLK_I958_SEL]   = &meson8b_cts_mclk_i958_sel.hw,
+		[CLKID_CTS_MCLK_I958_DIV]   = &meson8b_cts_mclk_i958_div.hw,
+		[CLKID_CTS_MCLK_I958]	    = &meson8b_cts_mclk_i958.hw,
 		[CLK_NR_CLKS]		    = NULL,
 	},
 	.num = CLK_NR_CLKS,
@@ -3106,6 +3168,9 @@ static struct clk_regmap *const meson8b_clk_regmaps[] = {
 	&meson8b_cts_amclk,
 	&meson8b_cts_amclk_sel,
 	&meson8b_cts_amclk_div,
+	&meson8b_cts_mclk_i958_sel,
+	&meson8b_cts_mclk_i958_div,
+	&meson8b_cts_mclk_i958,
 };
 
 static const struct meson8b_clk_reset_line {

drivers/clk/meson/meson8b.h

@@ -32,6 +32,7 @@
 #define HHI_MPEG_CLK_CNTL		0x174 /* 0x5d offset in data sheet */
 #define HHI_AUD_CLK_CNTL		0x178 /* 0x5e offset in data sheet */
 #define HHI_VID_CLK_CNTL		0x17c /* 0x5f offset in data sheet */
+#define HHI_AUD_CLK_CNTL2		0x190 /* 0x64 offset in data sheet */
 #define HHI_VID_CLK_CNTL2		0x194 /* 0x65 offset in data sheet */
 #define HHI_VID_DIVIDER_CNTL		0x198 /* 0x66 offset in data sheet */
 #define HHI_SYS_CPU_CLK_CNTL0		0x19c /* 0x67 offset in data sheet */
@@ -174,8 +175,10 @@
 #define CLKID_VDEC_HEVC_EN	205
 #define CLKID_CTS_AMCLK_SEL	207
 #define CLKID_CTS_AMCLK_DIV	208
+#define CLKID_CTS_MCLK_I958_SEL	210
+#define CLKID_CTS_MCLK_I958_DIV	211
 
-#define CLK_NR_CLKS		210
+#define CLK_NR_CLKS		213
 
 /*
  * include the CLKID and RESETID that have