linux-kernel - [PATCH v1 1/2] pinctrl: ocelot: add pwm output option for LAN966x

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Date:   Sat, 26 Mar 2022 20:28:47 +0100
From:   Michael Walle <michael@...le.cc>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Walle <michael@...le.cc>
Subject: [PATCH v1 1/2] pinctrl: ocelot: add pwm output option for LAN966x

According to the reference manual, you can mux the PWM output on GPIO27
and GPIO51. This was missing in the pinmux table. Add it.

Tested on a LAN9668 on GPIO51.

Signed-off-by: Michael Walle <michael@...le.cc>
---
 drivers/pinctrl/pinctrl-ocelot.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index 51261f1231cc..3f998a8fad8b 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -138,6 +138,8 @@ enum {
 	FUNC_PTPSYNC_6,
 	FUNC_PTPSYNC_7,
 	FUNC_PWM,
+	FUNC_PWM_a,
+	FUNC_PWM_b,
 	FUNC_QSPI1,
 	FUNC_QSPI2,
 	FUNC_R,
@@ -261,6 +263,8 @@ static const char *const ocelot_function_names[] = {
 	[FUNC_PTPSYNC_6]	= "ptpsync_6",
 	[FUNC_PTPSYNC_7]	= "ptpsync_7",
 	[FUNC_PWM]		= "pwm",
+	[FUNC_PWM_a]		= "pwm_a",
+	[FUNC_PWM_b]		= "pwm_b",
 	[FUNC_QSPI1]		= "qspi1",
 	[FUNC_QSPI2]		= "qspi2",
 	[FUNC_R]		= "reserved",
@@ -976,7 +980,7 @@ LAN966X_P(23,   GPIO,    NONE,     NONE,      NONE, OB_TRG_a,     NONE,      NON
 LAN966X_P(24,   GPIO,   FC0_b, IB_TRG_a,   USB_H_c, OB_TRG_a, IRQ_IN_c,   TACHO_a,        R);
 LAN966X_P(25,   GPIO,   FC0_b, IB_TRG_a,   USB_H_c, OB_TRG_a, IRQ_OUT_c,   SFP_SD,        R);
 LAN966X_P(26,   GPIO,   FC0_b, IB_TRG_a,   USB_S_c, OB_TRG_a,   CAN0_a,    SFP_SD,        R);
-LAN966X_P(27,   GPIO,    NONE,     NONE,      NONE, OB_TRG_a,   CAN0_a,      NONE,        R);
+LAN966X_P(27,   GPIO,    NONE,     NONE,      NONE, OB_TRG_a,   CAN0_a,     PWM_a,        R);
 LAN966X_P(28,   GPIO,  MIIM_a,     NONE,      NONE, OB_TRG_a, IRQ_OUT_c,   SFP_SD,        R);
 LAN966X_P(29,   GPIO,  MIIM_a,     NONE,      NONE, OB_TRG_a,     NONE,      NONE,        R);
 LAN966X_P(30,   GPIO,   FC3_c,     CAN1,      NONE,   OB_TRG,   RECO_b,      NONE,        R);
@@ -1000,7 +1004,7 @@ LAN966X_P(47,   GPIO,   FC1_c,   OB_TRG_b, IB_TRG_b, IRQ_OUT_a, FC_SHRD5, IRQ_IN
 LAN966X_P(48,   GPIO,   FC1_c,   OB_TRG_b, IB_TRG_b, IRQ_OUT_a, FC_SHRD6, IRQ_IN_a,       R);
 LAN966X_P(49,   GPIO, FC_SHRD7,  OB_TRG_b, IB_TRG_b, IRQ_OUT_a, TWI_SLC_GATE, IRQ_IN_a,   R);
 LAN966X_P(50,   GPIO, FC_SHRD16, OB_TRG_b, IB_TRG_b, IRQ_OUT_a, TWI_SLC_GATE, NONE,       R);
-LAN966X_P(51,   GPIO,   FC3_b,   OB_TRG_b, IB_TRG_c, IRQ_OUT_b,    NONE,  IRQ_IN_b,       R);
+LAN966X_P(51,   GPIO,   FC3_b,   OB_TRG_b, IB_TRG_c, IRQ_OUT_b,   PWM_b,  IRQ_IN_b,       R);
 LAN966X_P(52,   GPIO,   FC3_b,   OB_TRG_b, IB_TRG_c, IRQ_OUT_b, TACHO_b,  IRQ_IN_b,       R);
 LAN966X_P(53,   GPIO,   FC3_b,   OB_TRG_b, IB_TRG_c, IRQ_OUT_b,    NONE,  IRQ_IN_b,       R);
 LAN966X_P(54,   GPIO, FC_SHRD8,  OB_TRG_b, IB_TRG_c, IRQ_OUT_b, TWI_SLC_GATE, IRQ_IN_b,   R);
-- 
2.30.2