pinctrl: sh-pfc: r8a7791: Add can_clk function

This patch adds can_clk function to r8a7743/r8a7791 which is cleaner,
and allows for independent configuration.
We keep the can_clk* pins definitions from within can0_groups and
can1_groups for uniformity and backwards compatibility.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
index 10bd35f8c894..c01ef02d326b 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
@@ -4826,6 +4826,10 @@ static const char * const can0_groups[] = {
         "can0_data_d",
         "can0_data_e",
         "can0_data_f",
+        /*
+         * Retained for backwards compatibility, use can_clk_groups in new
+         * designs.
+         */
         "can_clk",
         "can_clk_b",
         "can_clk_c",
@@ -4837,6 +4841,21 @@ static const char * const can1_groups[] = {
         "can1_data_b",
         "can1_data_c",
         "can1_data_d",
+        /*
+         * Retained for backwards compatibility, use can_clk_groups in new
+         * designs.
+         */
+        "can_clk",
+        "can_clk_b",
+        "can_clk_c",
+        "can_clk_d",
+};
+
+/*
+ * can_clk_groups allows for independent configuration, use can_clk function
+ * in new designs.
+ */
+static const char * const can_clk_groups[] = {
         "can_clk",
         "can_clk_b",
         "can_clk_c",
@@ -5308,7 +5327,7 @@ static const char * const vin2_groups[] = {
 };
 
 static const struct {
-        struct sh_pfc_function common[56];
+        struct sh_pfc_function common[57];
         struct sh_pfc_function r8a779x[2];
 } pinmux_functions = {
         .common = {
@@ -5316,6 +5335,7 @@ static const struct {
                 SH_PFC_FUNCTION(avb),
                 SH_PFC_FUNCTION(can0),
                 SH_PFC_FUNCTION(can1),
+                SH_PFC_FUNCTION(can_clk),
                 SH_PFC_FUNCTION(du),
                 SH_PFC_FUNCTION(du0),
                 SH_PFC_FUNCTION(du1),