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Tue, 23 Apr 2024 10:59:25 -0700 (PDT) Received: from prasmi.home ([2a00:23c8:2500:a01:cef0:9ed3:1428:f85f]) by smtp.gmail.com with ESMTPSA id fl5-20020a05600c0b8500b0041abeaaf7f0sm2808145wmb.28.2024.04.23.10.59.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Apr 2024 10:59:24 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Geert Uytterhoeven , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Magnus Damm , linux-renesas-soc@vger.kernel.org Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v2 09/13] pinctrl: renesas: pinctrl-rzg2l: Add support to configure the slew-rate Date: Tue, 23 Apr 2024 18:58:56 +0100 Message-Id: <20240423175900.702640-10-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240423175900.702640-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20240423175900.702640-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Lad Prabhakar Add support to configure slew-rate property of the pin. Signed-off-by: Lad Prabhakar --- RFC->v2 - New patch --- 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 64648a951323..102fa75c71d3 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -120,6 +120,7 @@ #define PFC(off) (0x0400 + (off) * 4) #define PIN(off) (0x0800 + (off)) #define IOLH(off) (0x1000 + (off) * 8) +#define SR(off) (0x1400 + (off) * 8) #define IEN(off) (0x1800 + (off) * 8) #define ISEL(off) (0x2C00 + (off) * 8) #define SD_CH(off, ch) ((off) + (ch) * 4) @@ -138,6 +139,7 @@ #define PFC_MASK 0x07 #define IEN_MASK 0x01 #define IOLH_MASK 0x03 +#define SR_MASK 0x01 #define PM_INPUT 0x1 #define PM_OUTPUT 0x2 @@ -1130,6 +1132,13 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, arg = ret; break; + case PIN_CONFIG_SLEW_RATE: + if (!(cfg & PIN_CFG_SR)) + return -EINVAL; + + arg = rzg2l_read_pin_config(pctrl, SR(off), bit, SR_MASK); + break; + case PIN_CONFIG_DRIVE_STRENGTH: { unsigned int index; @@ -1236,6 +1245,15 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, settings.power_source = pinconf_to_config_argument(_configs[i]); break; + case PIN_CONFIG_SLEW_RATE: + arg = pinconf_to_config_argument(_configs[i]); + + if (!(cfg & PIN_CFG_SR) || arg > 1) + return -EINVAL; + + rzg2l_rmw_pin_config(pctrl, SR(off), bit, SR_MASK, arg); + break; + case PIN_CONFIG_DRIVE_STRENGTH: arg = pinconf_to_config_argument(_configs[i]);