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, 4 deletions

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
index 40aecfee1581..428d2a6857ef 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
@@ -1254,16 +1254,21 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP10_24_22,	CAN_CLK_C,	SEL_CANCLK_C),
 };
 
-static struct sh_pfc_pin pinmux_pins[] = {
-	PINMUX_GPIO_GP_ALL(),
-};
-
 /* 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)*25+(col)-1)
 
+static struct sh_pfc_pin pinmux_pins[] = {
+	PINMUX_GPIO_GP_ALL(),
+
+	/* Pins not associated with a GPIO port */
+	SH_PFC_PIN_NAMED(3, 20, C20),
+	SH_PFC_PIN_NAMED(20, 1, T1),
+	SH_PFC_PIN_NAMED(25, 2, Y2),
+};
+
 /* - macro */
 #define SH_PFC_PINS(name, args...) \
 	static const unsigned int name ##_pins[] = { args }