Commit bb46f6f3 authored by Magnus Damm's avatar Magnus Damm Committed by Geert Uytterhoeven
Browse files

pinctrl: sh-pfc: r8a7795: Add support for INTC-EX IRQ pins 



Most pins on the r8a7795 SoC can be configured in GPIO mode for
interrupt and GPIO functionality, while a couple of them can also
be routed to the INTC-EX hardware block (formerly known as IRQC).

On r8a7795 the INTC-EX hardware handles pins IRQ0 -> IRQ5 and
this patch adds support for them to the PFC driver as "intc_ex_irqN".

Tested on r8a7795 Salvator-X with an external loop back adapter on
EXIO_D that connects pin 9 (IRQ2/GP2_02) and pin 26 (ExA22/GP2_06).

Signed-off-by: default avatarMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent 73cfc55a

drivers/pinctrl/sh-pfc/pfc-r8a7795.c

+60 −0
Original line number Diff line number Diff line
@@ -1835,6 +1835,50 @@ static const unsigned int i2c6_c_mux[] = { 
	SDA6_C_MARK, SCL6_C_MARK,

};



/* - INTC-EX ---------------------------------------------------------------- */

static const unsigned int intc_ex_irq0_pins[] = {

	/* IRQ0 */

	RCAR_GP_PIN(2, 0),

};

static const unsigned int intc_ex_irq0_mux[] = {

	IRQ0_MARK,

};

static const unsigned int intc_ex_irq1_pins[] = {

	/* IRQ1 */

	RCAR_GP_PIN(2, 1),

};

static const unsigned int intc_ex_irq1_mux[] = {

	IRQ1_MARK,

};

static const unsigned int intc_ex_irq2_pins[] = {

	/* IRQ2 */

	RCAR_GP_PIN(2, 2),

};

static const unsigned int intc_ex_irq2_mux[] = {

	IRQ2_MARK,

};

static const unsigned int intc_ex_irq3_pins[] = {

	/* IRQ3 */

	RCAR_GP_PIN(2, 3),

};

static const unsigned int intc_ex_irq3_mux[] = {

	IRQ3_MARK,

};

static const unsigned int intc_ex_irq4_pins[] = {

	/* IRQ4 */

	RCAR_GP_PIN(2, 4),

};

static const unsigned int intc_ex_irq4_mux[] = {

	IRQ4_MARK,

};

static const unsigned int intc_ex_irq5_pins[] = {

	/* IRQ5 */

	RCAR_GP_PIN(2, 5),

};

static const unsigned int intc_ex_irq5_mux[] = {

	IRQ5_MARK,

};



/* - MSIOF0 ----------------------------------------------------------------- */

static const unsigned int msiof0_clk_pins[] = {

	/* SCK */
@@ -3173,6 +3217,12 @@ static const struct sh_pfc_pin_group pinmux_groups[] = { 
	SH_PFC_PIN_GROUP(i2c6_a),

	SH_PFC_PIN_GROUP(i2c6_b),

	SH_PFC_PIN_GROUP(i2c6_c),

	SH_PFC_PIN_GROUP(intc_ex_irq0),

	SH_PFC_PIN_GROUP(intc_ex_irq1),

	SH_PFC_PIN_GROUP(intc_ex_irq2),

	SH_PFC_PIN_GROUP(intc_ex_irq3),

	SH_PFC_PIN_GROUP(intc_ex_irq4),

	SH_PFC_PIN_GROUP(intc_ex_irq5),

	SH_PFC_PIN_GROUP(msiof0_clk),

	SH_PFC_PIN_GROUP(msiof0_sync),

	SH_PFC_PIN_GROUP(msiof0_ss1),
@@ -3439,6 +3489,15 @@ static const char * const i2c6_groups[] = { 
	"i2c6_c",

};



static const char * const intc_ex_groups[] = {

	"intc_ex_irq0",

	"intc_ex_irq1",

	"intc_ex_irq2",

	"intc_ex_irq3",

	"intc_ex_irq4",

	"intc_ex_irq5",

};



static const char * const msiof0_groups[] = {

	"msiof0_clk",

	"msiof0_sync",
@@ -3686,6 +3745,7 @@ static const struct sh_pfc_function pinmux_functions[] = { 
	SH_PFC_FUNCTION(i2c1),

	SH_PFC_FUNCTION(i2c2),

	SH_PFC_FUNCTION(i2c6),

	SH_PFC_FUNCTION(intc_ex),

	SH_PFC_FUNCTION(msiof0),

	SH_PFC_FUNCTION(msiof1),

	SH_PFC_FUNCTION(msiof2),

CRA Git | Maintained and supported by SUSTech CRA and CCSE