pinctrl: sh-pfc: r8a7795: Add SCIF_CLK support

Add pins, groups, and a function for SCIF_CLK on R-Car H3 ES2.0.
SCIF_CLK is the external clock source for the Baud Rate Generator for
External Clock (BRG) on (H)SCIF serial ports.

Extracted from a big patch in the BSP by Takeshi Kihara.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
index 996cacee99c3e8bec82943b90f634811524a5136..0454f31c08318c48101dcb4dfac4f0208f8b977f 100644 (file)
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
@@ -1773,6 +1773,22 @@ static const unsigned int scif5_clk_b_mux[] = {
        SCK5_B_MARK,
 };
 
+/* - SCIF Clock ------------------------------------------------------------- */
+static const unsigned int scif_clk_a_pins[] = {
+       /* SCIF_CLK */
+       RCAR_GP_PIN(6, 23),
+};
+static const unsigned int scif_clk_a_mux[] = {
+       SCIF_CLK_A_MARK,
+};
+static const unsigned int scif_clk_b_pins[] = {
+       /* SCIF_CLK */
+       RCAR_GP_PIN(5, 9),
+};
+static const unsigned int scif_clk_b_mux[] = {
+       SCIF_CLK_B_MARK,
+};
+
 static const struct sh_pfc_pin_group pinmux_groups[] = {
        SH_PFC_PIN_GROUP(scif0_data),
        SH_PFC_PIN_GROUP(scif0_clk),
@@ -1801,6 +1817,8 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
        SH_PFC_PIN_GROUP(scif5_clk_a),
        SH_PFC_PIN_GROUP(scif5_data_b),
        SH_PFC_PIN_GROUP(scif5_clk_b),
+       SH_PFC_PIN_GROUP(scif_clk_a),
+       SH_PFC_PIN_GROUP(scif_clk_b),
 };
 
 static const char * const scif0_groups[] = {
@@ -1848,6 +1866,11 @@ static const char * const scif5_groups[] = {
        "scif5_clk_b",
 };
 
+static const char * const scif_clk_groups[] = {
+       "scif_clk_a",
+       "scif_clk_b",
+};
+
 static const struct sh_pfc_function pinmux_functions[] = {
        SH_PFC_FUNCTION(scif0),
        SH_PFC_FUNCTION(scif1),
@@ -1855,6 +1878,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
        SH_PFC_FUNCTION(scif3),
        SH_PFC_FUNCTION(scif4),
        SH_PFC_FUNCTION(scif5),
+       SH_PFC_FUNCTION(scif_clk),
 };
 
 static const struct pinmux_cfg_reg pinmux_config_regs[] = {