sh-pfc: Support pins not associated with a GPIO port

Pins with selectable functions but without a GPIO port can't be named
PORT_# or GP_#_#. Add a SH_PFC_PIN_NAMED macro to declare such pins in
the pinmux pins array, naming them with the PIN_ prefix followed by the
pin physical position.

In order to make sure not to register those pins as GPIOs, add a
SH_PFC_PIN_CFG_NO_GPIO pin flag to denote pins without a GPIO port.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
index 1f4dbe45737a..6417be5514e2 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c
@@ -1173,6 +1173,12 @@ static const u16 pinmux_data[] = {
 #define SH73A0_PIN_IO_PU_PD(pin)        SH_PFC_PIN_CFG(pin, __IO | __PUD)
 #define SH73A0_PIN_O(pin)               SH_PFC_PIN_CFG(pin, __O)
 
+/* Pin numbers for pins without a corresponding GPIO port number are computed
+ * from the row and column numbers with a 1000 offset to avoid collisions with
+ * GPIO port numbers.
+ */
+#define PIN_NUMBER(row, col)            (1000+((row)-1)*34+(col)-1)
+
 static struct sh_pfc_pin pinmux_pins[] = {
         /* Table 25-1 (I/O and Pull U/D) */
         SH73A0_PIN_I_PD(0),
@@ -1444,13 +1450,10 @@ static struct sh_pfc_pin pinmux_pins[] = {
         SH73A0_PIN_O(307),
         SH73A0_PIN_I_PU(308),
         SH73A0_PIN_O(309),
-};
 
-/* Pin numbers for pins without a corresponding GPIO port number are computed
- * from the row and column numbers with a 1000 offset to avoid collisions with
- * GPIO port numbers.
- */
-#define PIN_NUMBER(row, col)            (1000+((row)-1)*34+(col)-1)
+        /* Pins not associated with a GPIO port */
+        SH_PFC_PIN_NAMED(6, 26, F26),
+};
 
 /* - BSC -------------------------------------------------------------------- */
 static const unsigned int bsc_data_0_7_pins[] = {