clk: renesas: r9a08g045: Add clock, reset and power domain support for I2C

Add clock, reset and power domain support for the I2C channels available
on the Renesas RZ/G3S SoC.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240625121358.590547-2-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: claudiubeznea

drivers/clk/renesas/r9a08g045-cpg.c

@@ -213,6 +213,10 @@ static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = {
 	DEF_COUPLED("eth1_axi",		R9A08G045_ETH1_CLK_AXI, R9A08G045_CLK_M0, 0x57c, 1),
 	DEF_COUPLED("eth1_chi",		R9A08G045_ETH1_CLK_CHI, R9A08G045_CLK_ZT, 0x57c, 1),
 	DEF_MOD("eth1_refclk",		R9A08G045_ETH1_REFCLK, R9A08G045_CLK_HP, 0x57c, 9),
+	DEF_MOD("i2c0_pclk",		R9A08G045_I2C0_PCLK, R9A08G045_CLK_P0, 0x580, 0),
+	DEF_MOD("i2c1_pclk",		R9A08G045_I2C1_PCLK, R9A08G045_CLK_P0, 0x580, 1),
+	DEF_MOD("i2c2_pclk",		R9A08G045_I2C2_PCLK, R9A08G045_CLK_P0, 0x580, 2),
+	DEF_MOD("i2c3_pclk",		R9A08G045_I2C3_PCLK, R9A08G045_CLK_P0, 0x580, 3),
 	DEF_MOD("scif0_clk_pck",	R9A08G045_SCIF0_CLK_PCK, R9A08G045_CLK_P0, 0x584, 0),
 	DEF_MOD("gpio_hclk",		R9A08G045_GPIO_HCLK, R9A08G045_OSCCLK, 0x598, 0),
 	DEF_MOD("vbat_bclk",		R9A08G045_VBAT_BCLK, R9A08G045_OSCCLK, 0x614, 0),
@@ -228,6 +232,10 @@ static const struct rzg2l_reset r9a08g045_resets[] = {
 	DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2),
 	DEF_RST(R9A08G045_ETH0_RST_HW_N, 0x87c, 0),
 	DEF_RST(R9A08G045_ETH1_RST_HW_N, 0x87c, 1),
+	DEF_RST(R9A08G045_I2C0_MRST, 0x880, 0),
+	DEF_RST(R9A08G045_I2C1_MRST, 0x880, 1),
+	DEF_RST(R9A08G045_I2C2_MRST, 0x880, 2),
+	DEF_RST(R9A08G045_I2C3_MRST, 0x880, 3),
 	DEF_RST(R9A08G045_SCIF0_RST_SYSTEM_N, 0x884, 0),
 	DEF_RST(R9A08G045_GPIO_RSTN, 0x898, 0),
 	DEF_RST(R9A08G045_GPIO_PORT_RESETN, 0x898, 1),
@@ -275,6 +283,18 @@ static const struct rzg2l_cpg_pm_domain_init_data r9a08g045_pm_domains[] = {
 	DEF_PD("eth1",		R9A08G045_PD_ETHER1,
 				DEF_REG_CONF(CPG_BUS_PERI_COM_MSTOP, BIT(3)),
 				RZG2L_PD_F_NONE),
+	DEF_PD("i2c0",		R9A08G045_PD_I2C0,
+				DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(10)),
+				RZG2L_PD_F_NONE),
+	DEF_PD("i2c1",		R9A08G045_PD_I2C1,
+				DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(11)),
+				RZG2L_PD_F_NONE),
+	DEF_PD("i2c2",		R9A08G045_PD_I2C2,
+				DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(12)),
+				RZG2L_PD_F_NONE),
+	DEF_PD("i2c3",		R9A08G045_PD_I2C3,
+				DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(13)),
+				RZG2L_PD_F_NONE),
 	DEF_PD("scif0",		R9A08G045_PD_SCIF0,
 				DEF_REG_CONF(CPG_BUS_MCPU2_MSTOP, BIT(1)),
 				RZG2L_PD_F_NONE),