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([2401:4900:1c07:3bcb:e05d:a577:9add:a9ce]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1f63240c947sm450105ad.269.2024.05.30.10.42.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 May 2024 10:42:29 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Geert Uytterhoeven , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Magnus Damm Cc: linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Claudiu Beznea , Fabrizio Castro , Paul Barker , Lad Prabhakar Subject: [PATCH v3 10/15] pinctrl: renesas: pinctrl-rzg2l: Add support to configure the slew-rate Date: Thu, 30 May 2024 18:38:52 +0100 Message-Id: <20240530173857.164073-11-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240530173857.164073-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20240530173857.164073-1-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 Reviewed-by: Geert Uytterhoeven --- v2->v3 - Included RB tag 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 807851c33e48..6b82e78afa7c 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -127,6 +127,7 @@ #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) @@ -145,6 +146,7 @@ #define PFC_MASK 0x07 #define IEN_MASK 0x01 #define IOLH_MASK 0x03 +#define SR_MASK 0x01 #define PM_INPUT 0x1 #define PM_OUTPUT 0x2 @@ -1049,6 +1051,13 @@ 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; @@ -1155,6 +1164,15 @@ 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]);