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Message-ID: <20241004123658.764557-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 4 Oct 2024 13:36:58 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Magnus Damm <magnus.damm@...il.com>
Cc: devicetree@...r.kernel.org,
linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Biju Das <biju.das.jz@...renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v2 3/3] pinctrl: renesas: rzg2l: Add support for configuring schmitt-trigger
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Add support for configuring the multiplexed pins as schmitt-trigger
inputs.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
v1->v2
- Included RB tag
---
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 8d576cc74003..13708c71f938 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -140,6 +140,7 @@
#define PUPD(off) (0x1C00 + (off) * 8)
#define ISEL(off) (0x2C00 + (off) * 8)
#define NOD(off) (0x3000 + (off) * 8)
+#define SMT(off) (0x3400 + (off) * 8)
#define SD_CH(off, ch) ((off) + (ch) * 4)
#define ETH_POC(off, ch) ((off) + (ch) * 4)
#define QSPI (0x3008)
@@ -162,6 +163,7 @@
#define SR_MASK 0x01
#define PUPD_MASK 0x03
#define NOD_MASK 0x01
+#define SMT_MASK 0x01
#define PM_INPUT 0x1
#define PM_OUTPUT 0x2
@@ -1351,6 +1353,15 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
return -EINVAL;
break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (!(cfg & PIN_CFG_SMT))
+ return -EINVAL;
+
+ arg = rzg2l_read_pin_config(pctrl, SMT(off), bit, SMT_MASK);
+ if (!arg)
+ return -EINVAL;
+ break;
+
case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE:
if (!(cfg & PIN_CFG_IOLH_RZV2H))
return -EINVAL;
@@ -1489,6 +1500,13 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
param == PIN_CONFIG_DRIVE_OPEN_DRAIN ? 1 : 0);
break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ if (!(cfg & PIN_CFG_SMT))
+ return -EINVAL;
+
+ rzg2l_rmw_pin_config(pctrl, SMT(off), bit, SMT_MASK, arg);
+ break;
+
case RENESAS_RZV2H_PIN_CONFIG_OUTPUT_IMPEDANCE:
if (!(cfg & PIN_CFG_IOLH_RZV2H))
return -EINVAL;
--
2.43.0
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