From patchwork Fri Mar 8 10:34:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhargav Raviprakash X-Patchwork-Id: 779249 Received: from esa2.ltts.com (unknown [14.140.155.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6EC0C5A7A1; Fri, 8 Mar 2024 10:35:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=14.140.155.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709894135; cv=none; b=khB4zzMOsT6Z8hqjeiR63IChMfahlR4lM7TRWX78zXrS3q2upEBJbU38l0wVUDKJgkWpTXM+lJ2mnRAlCZ4qNJ4L//BPw1bXhU+AiAhn1YGNysu6vQGMleXhxr3mTKTCnBIQ6dQq7nuX+ktJQaKt5CU5P3gMqV1Ur0POzOaTX7I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709894135; c=relaxed/simple; bh=uEjfIuWZblgKggTjNLV1V80nqCphYFh76MPQO5CuBz8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ekz7agqzDbiUC850gZnfZXYFKAtBfQKwY1AL25EvjFJsg7zcR/v9ySYyMZzAY2YMnZBDukwRRMpQ6Id82ueYD033AiODT8UWITGo55Rtz+92InwkOZ8CZvInxPsCitpzNztw/yQYOphxYZrnzocYMR+kNQpkeogFGIFJW21lWRU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ltts.com; spf=pass smtp.mailfrom=ltts.com; arc=none smtp.client-ip=14.140.155.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ltts.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ltts.com IronPort-SDR: xLSbRa+xdxTkvw2rFVH4Z6jOf/cskEDIipc+FgXSQjqJZVF3TYOet7VxxDINQYy84BWrdnW1ij XoR9o7lZbgbA== Received: from unknown (HELO localhost.localdomain) ([192.168.34.55]) by esa2.ltts.com with ESMTP; 08 Mar 2024 16:05:13 +0530 From: Bhargav Raviprakash To: linux-kernel@vger.kernel.org Cc: m.nirmaladevi@ltts.com, lee@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, jpanis@baylibre.com, devicetree@vger.kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org, lgirdwood@gmail.com, broonie@kernel.org, linus.walleij@linaro.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, nm@ti.com, vigneshr@ti.com, kristo@kernel.org, eblanc@baylibre.com, Bhargav Raviprakash Subject: [PATCH v3 10/11] pinctrl: pinctrl-tps6594: Add TPS65224 PMIC pinctrl and GPIO Date: Fri, 8 Mar 2024 16:04:54 +0530 Message-Id: <20240308103455.242705-11-bhargav.r@ltts.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240308103455.242705-1-bhargav.r@ltts.com> References: <20240308103455.242705-1-bhargav.r@ltts.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Nirmala Devi Mal Nadar Add support for TPS65224 pinctrl and GPIOs to TPS6594 driver as they have significant functional overlap. TPS65224 PMIC has 6 GPIOS which can be configured as GPIO or other dedicated device functions. Signed-off-by: Nirmala Devi Mal Nadar Signed-off-by: Bhargav Raviprakash Acked-by: Linus Walleij --- drivers/pinctrl/pinctrl-tps6594.c | 287 +++++++++++++++++++++++++----- 1 file changed, 246 insertions(+), 41 deletions(-) diff --git a/drivers/pinctrl/pinctrl-tps6594.c b/drivers/pinctrl/pinctrl-tps6594.c index 66985e54b..5da21aa14 100644 --- a/drivers/pinctrl/pinctrl-tps6594.c +++ b/drivers/pinctrl/pinctrl-tps6594.c @@ -14,8 +14,6 @@ #include -#define TPS6594_PINCTRL_PINS_NB 11 - #define TPS6594_PINCTRL_GPIO_FUNCTION 0 #define TPS6594_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION 1 #define TPS6594_PINCTRL_TRIG_WDOG_FUNCTION 1 @@ -40,17 +38,40 @@ #define TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION_GPIO8 3 #define TPS6594_PINCTRL_CLK32KOUT_FUNCTION_GPIO9 3 +/* TPS65224 pin muxval */ +#define TPS65224_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION 1 +#define TPS65224_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION 1 +#define TPS65224_PINCTRL_VMON1_FUNCTION 1 +#define TPS65224_PINCTRL_VMON2_FUNCTION 1 +#define TPS65224_PINCTRL_WKUP_FUNCTION 1 +#define TPS65224_PINCTRL_NSLEEP2_FUNCTION 2 +#define TPS65224_PINCTRL_NSLEEP1_FUNCTION 2 +#define TPS65224_PINCTRL_SYNCCLKIN_FUNCTION 2 +#define TPS65224_PINCTRL_NERR_MCU_FUNCTION 2 +#define TPS65224_PINCTRL_NINT_FUNCTION 3 +#define TPS65224_PINCTRL_TRIG_WDOG_FUNCTION 3 +#define TPS65224_PINCTRL_PB_FUNCTION 3 +#define TPS65224_PINCTRL_ADC_IN_FUNCTION 3 + +/* TPS65224 Special muxval for recalcitrant pins */ +#define TPS65224_PINCTRL_NSLEEP2_FUNCTION_GPIO5 1 +#define TPS65224_PINCTRL_WKUP_FUNCTION_GPIO5 4 +#define TPS65224_PINCTRL_SYNCCLKIN_FUNCTION_GPIO5 3 + #define TPS6594_OFFSET_GPIO_SEL 5 -#define FUNCTION(fname, v) \ +#define TPS65224_NGPIO_PER_REG 6 +#define TPS6594_NGPIO_PER_REG 8 + +#define FUNCTION(dev_name, fname, v) \ { \ .pinfunction = PINCTRL_PINFUNCTION(#fname, \ - tps6594_##fname##_func_group_names, \ - ARRAY_SIZE(tps6594_##fname##_func_group_names)),\ + dev_name##_##fname##_func_group_names, \ + ARRAY_SIZE(dev_name##_##fname##_func_group_names)),\ .muxval = v, \ } -static const struct pinctrl_pin_desc tps6594_pins[TPS6594_PINCTRL_PINS_NB] = { +static const struct pinctrl_pin_desc tps6594_pins[] = { PINCTRL_PIN(0, "GPIO0"), PINCTRL_PIN(1, "GPIO1"), PINCTRL_PIN(2, "GPIO2"), PINCTRL_PIN(3, "GPIO3"), PINCTRL_PIN(4, "GPIO4"), PINCTRL_PIN(5, "GPIO5"), @@ -143,30 +164,127 @@ static const char *const tps6594_syncclkin_func_group_names[] = { "GPIO9", }; +static const struct pinctrl_pin_desc tps65224_pins[] = { + PINCTRL_PIN(0, "GPIO0"), PINCTRL_PIN(1, "GPIO1"), + PINCTRL_PIN(2, "GPIO2"), PINCTRL_PIN(3, "GPIO3"), + PINCTRL_PIN(4, "GPIO4"), PINCTRL_PIN(5, "GPIO5"), +}; + +static const char *const tps65224_gpio_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", +}; + +static const char *const tps65224_sda_i2c2_sdo_spi_func_group_names[] = { + "GPIO0", +}; + +static const char *const tps65224_nsleep2_func_group_names[] = { + "GPIO0", "GPIO5", +}; + +static const char *const tps65224_nint_func_group_names[] = { + "GPIO0", +}; + +static const char *const tps65224_scl_i2c2_cs_spi_func_group_names[] = { + "GPIO1", +}; + +static const char *const tps65224_nsleep1_func_group_names[] = { + "GPIO1", "GPIO2", "GPIO3", +}; + +static const char *const tps65224_trig_wdog_func_group_names[] = { + "GPIO1", +}; + +static const char *const tps65224_vmon1_func_group_names[] = { + "GPIO2", +}; + +static const char *const tps65224_pb_func_group_names[] = { + "GPIO2", +}; + +static const char *const tps65224_vmon2_func_group_names[] = { + "GPIO3", +}; + +static const char *const tps65224_adc_in_func_group_names[] = { + "GPIO3", "GPIO4", +}; + +static const char *const tps65224_wkup_func_group_names[] = { + "GPIO4", "GPIO5", +}; + +static const char *const tps65224_syncclkin_func_group_names[] = { + "GPIO4", "GPIO5", +}; + +static const char *const tps65224_nerr_mcu_func_group_names[] = { + "GPIO5", +}; + struct tps6594_pinctrl_function { struct pinfunction pinfunction; u8 muxval; }; +struct muxval_remap { + unsigned int group; + u8 muxval; + u8 remap; +}; + +struct muxval_remap tps65224_muxval_remap[] = { + {5, TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION, TPS65224_PINCTRL_WKUP_FUNCTION_GPIO5}, + {5, TPS65224_PINCTRL_SYNCCLKIN_FUNCTION, TPS65224_PINCTRL_SYNCCLKIN_FUNCTION_GPIO5}, + {5, TPS65224_PINCTRL_NSLEEP2_FUNCTION, TPS65224_PINCTRL_NSLEEP2_FUNCTION_GPIO5}, +}; + +struct muxval_remap tps6594_muxval_remap[] = { + {8, TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION, TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION_GPIO8}, + {8, TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION, TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION_GPIO8}, + {9, TPS6594_PINCTRL_CLK32KOUT_FUNCTION, TPS6594_PINCTRL_CLK32KOUT_FUNCTION_GPIO9}, +}; + static const struct tps6594_pinctrl_function pinctrl_functions[] = { - FUNCTION(gpio, TPS6594_PINCTRL_GPIO_FUNCTION), - FUNCTION(nsleep1, TPS6594_PINCTRL_NSLEEP1_FUNCTION), - FUNCTION(nsleep2, TPS6594_PINCTRL_NSLEEP2_FUNCTION), - FUNCTION(wkup1, TPS6594_PINCTRL_WKUP1_FUNCTION), - FUNCTION(wkup2, TPS6594_PINCTRL_WKUP2_FUNCTION), - FUNCTION(scl_i2c2_cs_spi, TPS6594_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION), - FUNCTION(nrstout_soc, TPS6594_PINCTRL_NRSTOUT_SOC_FUNCTION), - FUNCTION(trig_wdog, TPS6594_PINCTRL_TRIG_WDOG_FUNCTION), - FUNCTION(sda_i2c2_sdo_spi, TPS6594_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION), - FUNCTION(clk32kout, TPS6594_PINCTRL_CLK32KOUT_FUNCTION), - FUNCTION(nerr_soc, TPS6594_PINCTRL_NERR_SOC_FUNCTION), - FUNCTION(sclk_spmi, TPS6594_PINCTRL_SCLK_SPMI_FUNCTION), - FUNCTION(sdata_spmi, TPS6594_PINCTRL_SDATA_SPMI_FUNCTION), - FUNCTION(nerr_mcu, TPS6594_PINCTRL_NERR_MCU_FUNCTION), - FUNCTION(syncclkout, TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION), - FUNCTION(disable_wdog, TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION), - FUNCTION(pdog, TPS6594_PINCTRL_PDOG_FUNCTION), - FUNCTION(syncclkin, TPS6594_PINCTRL_SYNCCLKIN_FUNCTION), + FUNCTION(tps6594, gpio, TPS6594_PINCTRL_GPIO_FUNCTION), + FUNCTION(tps6594, nsleep1, TPS6594_PINCTRL_NSLEEP1_FUNCTION), + FUNCTION(tps6594, nsleep2, TPS6594_PINCTRL_NSLEEP2_FUNCTION), + FUNCTION(tps6594, wkup1, TPS6594_PINCTRL_WKUP1_FUNCTION), + FUNCTION(tps6594, wkup2, TPS6594_PINCTRL_WKUP2_FUNCTION), + FUNCTION(tps6594, scl_i2c2_cs_spi, TPS6594_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION), + FUNCTION(tps6594, nrstout_soc, TPS6594_PINCTRL_NRSTOUT_SOC_FUNCTION), + FUNCTION(tps6594, trig_wdog, TPS6594_PINCTRL_TRIG_WDOG_FUNCTION), + FUNCTION(tps6594, sda_i2c2_sdo_spi, TPS6594_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION), + FUNCTION(tps6594, clk32kout, TPS6594_PINCTRL_CLK32KOUT_FUNCTION), + FUNCTION(tps6594, nerr_soc, TPS6594_PINCTRL_NERR_SOC_FUNCTION), + FUNCTION(tps6594, sclk_spmi, TPS6594_PINCTRL_SCLK_SPMI_FUNCTION), + FUNCTION(tps6594, sdata_spmi, TPS6594_PINCTRL_SDATA_SPMI_FUNCTION), + FUNCTION(tps6594, nerr_mcu, TPS6594_PINCTRL_NERR_MCU_FUNCTION), + FUNCTION(tps6594, syncclkout, TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION), + FUNCTION(tps6594, disable_wdog, TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION), + FUNCTION(tps6594, pdog, TPS6594_PINCTRL_PDOG_FUNCTION), + FUNCTION(tps6594, syncclkin, TPS6594_PINCTRL_SYNCCLKIN_FUNCTION), +}; + +static const struct tps6594_pinctrl_function tps65224_pinctrl_functions[] = { + FUNCTION(tps65224, gpio, TPS6594_PINCTRL_GPIO_FUNCTION), + FUNCTION(tps65224, sda_i2c2_sdo_spi, TPS65224_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION), + FUNCTION(tps65224, nsleep2, TPS65224_PINCTRL_NSLEEP2_FUNCTION), + FUNCTION(tps65224, nint, TPS65224_PINCTRL_NINT_FUNCTION), + FUNCTION(tps65224, scl_i2c2_cs_spi, TPS65224_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION), + FUNCTION(tps65224, nsleep1, TPS65224_PINCTRL_NSLEEP1_FUNCTION), + FUNCTION(tps65224, trig_wdog, TPS65224_PINCTRL_TRIG_WDOG_FUNCTION), + FUNCTION(tps65224, vmon1, TPS65224_PINCTRL_VMON1_FUNCTION), + FUNCTION(tps65224, pb, TPS65224_PINCTRL_PB_FUNCTION), + FUNCTION(tps65224, vmon2, TPS65224_PINCTRL_VMON2_FUNCTION), + FUNCTION(tps65224, adc_in, TPS65224_PINCTRL_ADC_IN_FUNCTION), + FUNCTION(tps65224, wkup, TPS65224_PINCTRL_WKUP_FUNCTION), + FUNCTION(tps65224, syncclkin, TPS65224_PINCTRL_SYNCCLKIN_FUNCTION), + FUNCTION(tps65224, nerr_mcu, TPS65224_PINCTRL_NERR_MCU_FUNCTION), }; struct tps6594_pinctrl { @@ -201,7 +319,21 @@ static int tps6594_gpio_regmap_xlate(struct gpio_regmap *gpio, static int tps6594_pmx_func_cnt(struct pinctrl_dev *pctldev) { - return ARRAY_SIZE(pinctrl_functions); + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + int func_cnt = 0; + + switch (pinctrl->tps->chip_id) { + case TPS65224: + func_cnt = ARRAY_SIZE(tps65224_pinctrl_functions); + break; + case TPS6594: + func_cnt = ARRAY_SIZE(pinctrl_functions); + break; + default: + break; + } + + return func_cnt; } static const char *tps6594_pmx_func_name(struct pinctrl_dev *pctldev, @@ -229,10 +361,26 @@ static int tps6594_pmx_set(struct tps6594_pinctrl *pinctrl, unsigned int pin, u8 muxval) { u8 mux_sel_val = muxval << TPS6594_OFFSET_GPIO_SEL; + u8 mux_sel_mask = 0; + + switch (pinctrl->tps->chip_id) { + case TPS65224: + mux_sel_mask = TPS65224_MASK_GPIO_SEL; + /* GPIO6 has a different mask in TPS65224*/ + if (pin == 5) + mux_sel_mask = TPS65224_MASK_GPIO_SEL_GPIO6; + mux_sel_mask = TPS6594_MASK_GPIO_SEL; + break; + case TPS6594: + mux_sel_mask = TPS6594_MASK_GPIO_SEL; + break; + default: + break; + } return regmap_update_bits(pinctrl->tps->regmap, TPS6594_REG_GPIOX_CONF(pin), - TPS6594_MASK_GPIO_SEL, mux_sel_val); + mux_sel_mask, mux_sel_val); } static int tps6594_pmx_set_mux(struct pinctrl_dev *pctldev, @@ -240,16 +388,28 @@ static int tps6594_pmx_set_mux(struct pinctrl_dev *pctldev, { struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); u8 muxval = pinctrl->funcs[function].muxval; + unsigned int remap_cnt = 0; + struct muxval_remap *remap; /* Some pins don't have the same muxval for the same function... */ - if (group == 8) { - if (muxval == TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION) - muxval = TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION_GPIO8; - else if (muxval == TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION) - muxval = TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION_GPIO8; - } else if (group == 9) { - if (muxval == TPS6594_PINCTRL_CLK32KOUT_FUNCTION) - muxval = TPS6594_PINCTRL_CLK32KOUT_FUNCTION_GPIO9; + switch (pinctrl->tps->chip_id) { + case TPS65224: + remap = tps65224_muxval_remap; + remap_cnt = ARRAY_SIZE(tps65224_muxval_remap); + break; + case TPS6594: + remap = tps6594_muxval_remap; + remap_cnt = ARRAY_SIZE(tps6594_muxval_remap); + break; + default: + break; + } + + for (unsigned int i = 0; i < remap_cnt; i++) { + if (group == remap[i].group && muxval == remap[i].muxval) { + muxval = remap[i].remap; + break; + } } return tps6594_pmx_set(pinctrl, group, muxval); @@ -276,7 +436,21 @@ static const struct pinmux_ops tps6594_pmx_ops = { static int tps6594_groups_cnt(struct pinctrl_dev *pctldev) { - return ARRAY_SIZE(tps6594_pins); + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + int num_pins = 0; + + switch (pinctrl->tps->chip_id) { + case TPS65224: + num_pins = ARRAY_SIZE(tps65224_pins); + break; + case TPS6594: + num_pins = ARRAY_SIZE(tps6594_pins); + break; + default: + break; + } + + return num_pins; } static int tps6594_group_pins(struct pinctrl_dev *pctldev, @@ -320,8 +494,18 @@ static int tps6594_pinctrl_probe(struct platform_device *pdev) return -ENOMEM; pctrl_desc->name = dev_name(dev); pctrl_desc->owner = THIS_MODULE; - pctrl_desc->pins = tps6594_pins; - pctrl_desc->npins = ARRAY_SIZE(tps6594_pins); + switch (tps->chip_id) { + case TPS65224: + pctrl_desc->pins = tps65224_pins; + pctrl_desc->npins = ARRAY_SIZE(tps65224_pins); + break; + case TPS6594: + pctrl_desc->pins = tps6594_pins; + pctrl_desc->npins = ARRAY_SIZE(tps6594_pins); + break; + default: + break; + } pctrl_desc->pctlops = &tps6594_pctrl_ops; pctrl_desc->pmxops = &tps6594_pmx_ops; @@ -329,8 +513,18 @@ static int tps6594_pinctrl_probe(struct platform_device *pdev) if (!pinctrl) return -ENOMEM; pinctrl->tps = dev_get_drvdata(dev->parent); - pinctrl->funcs = pinctrl_functions; - pinctrl->pins = tps6594_pins; + switch (pinctrl->tps->chip_id) { + case TPS65224: + pinctrl->funcs = tps65224_pinctrl_functions; + pinctrl->pins = tps65224_pins; + break; + case TPS6594: + pinctrl->funcs = pinctrl_functions; + pinctrl->pins = tps6594_pins; + break; + default: + break; + } pinctrl->pctl_dev = devm_pinctrl_register(dev, pctrl_desc, pinctrl); if (IS_ERR(pinctrl->pctl_dev)) return dev_err_probe(dev, PTR_ERR(pinctrl->pctl_dev), @@ -338,8 +532,18 @@ static int tps6594_pinctrl_probe(struct platform_device *pdev) config.parent = tps->dev; config.regmap = tps->regmap; - config.ngpio = TPS6594_PINCTRL_PINS_NB; - config.ngpio_per_reg = 8; + switch (pinctrl->tps->chip_id) { + case TPS65224: + config.ngpio = ARRAY_SIZE(tps65224_gpio_func_group_names); + config.ngpio_per_reg = TPS65224_NGPIO_PER_REG; + break; + case TPS6594: + config.ngpio = ARRAY_SIZE(tps6594_gpio_func_group_names); + config.ngpio_per_reg = TPS6594_NGPIO_PER_REG; + break; + default: + break; + } config.reg_dat_base = TPS6594_REG_GPIO_IN_1; config.reg_set_base = TPS6594_REG_GPIO_OUT_1; config.reg_dir_out_base = TPS6594_REG_GPIOX_CONF(0); @@ -369,5 +573,6 @@ static struct platform_driver tps6594_pinctrl_driver = { module_platform_driver(tps6594_pinctrl_driver); MODULE_AUTHOR("Esteban Blanc "); +MODULE_AUTHOR("Nirmala Devi Mal Nadar "); MODULE_DESCRIPTION("TPS6594 pinctrl and GPIO driver"); MODULE_LICENSE("GPL");