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Fri, 13 Sep 2024 08:08:52 -0700 (PDT) Received: from [127.0.1.1] ([178.127.153.210]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5c3ebd523b4sm7774318a12.51.2024.09.13.08.08.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Sep 2024 08:08:51 -0700 (PDT) From: Dzmitry Sankouski Date: Fri, 13 Sep 2024 18:07:58 +0300 Subject: [PATCH v4 15/27] regulator: add s2dos05 regulator support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240913-starqltechn_integration_upstream-v4-15-2d2efd5c5877@gmail.com> References: <20240913-starqltechn_integration_upstream-v4-0-2d2efd5c5877@gmail.com> In-Reply-To: <20240913-starqltechn_integration_upstream-v4-0-2d2efd5c5877@gmail.com> To: Sebastian Reichel , Bjorn Andersson , Michael Turquette , Stephen Boyd , Neil Armstrong , Jessica Zhang , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lee Jones , Dmitry Torokhov , Pavel Machek , Liam Girdwood , Mark Brown , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Chanwoo Choi , Simona Vetter , cros-qcom-dts-watchers@chromium.org, Konrad Dybcio , Simona Vetter , Konrad Dybcio Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-leds@vger.kernel.org, linux-pwm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Dzmitry Sankouski X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1726240085; l=10690; i=dsankouski@gmail.com; s=20240618; h=from:subject:message-id; bh=gf6ZfAOFwzhYiHvZhzXOirp3dlH6f9UkWyv1s06LoVQ=; b=WhfjlLx+ght7ekqiofm8OEYevYj8ZRvBqndBLYsoIsW26vQk2a0wLl3m5Qq5t3Mjk/v+L8HeS P19gyMylJekBZPxK2iHiVdZuVGtIM/JJY6lnKdZSCeV8v88PgSTpNFm X-Developer-Key: i=dsankouski@gmail.com; a=ed25519; pk=6pMMVVDDReSiRgPCbMOUauN5nS3ty4Sf5b7a2gi4x0M= S2dos05 has 1 buck and 4 LDO regulators, used for powering panel/touchscreen. Signed-off-by: Dzmitry Sankouski --- Changes in v4: - remove excessive linux/module.h import - use generic regulator helpers - use of_match - use devm_* for mem allocations - use // style comment - drop all junk Samsung code - adjust to depend on sec-core --- MAINTAINERS | 1 + drivers/regulator/Kconfig | 8 ++ drivers/regulator/Makefile | 1 + drivers/regulator/s2dos05-regulator.c | 176 ++++++++++++++++++++++++++++++= ++++ include/linux/regulator/s2dos05.h | 73 ++++++++++++++ 5 files changed, 259 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 444cc855a01e..25dcce07180a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20476,6 +20476,7 @@ F: Documentation/devicetree/bindings/regulator/sams= ung,s2m*.yaml F: Documentation/devicetree/bindings/regulator/samsung,s5m*.yaml F: drivers/clk/clk-s2mps11.c F: drivers/mfd/sec*.c +F: drivers/regulator/s2dos*.c F: drivers/regulator/s2m*.c F: drivers/regulator/s5m*.c F: drivers/rtc/rtc-s5m.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 4b411a09c1a6..63085d73cf74 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1322,6 +1322,14 @@ config REGULATOR_RTQ2208 and two ldos. It features wide output voltage range from 0.4V to 2.05V and the capability to configure the corresponding power stages. =20 +config REGULATOR_S2DOS05 + tristate "SLSI S2DOS05 regulator" + depends on MFD_SEC_CORE || COMPILE_TEST + help + This driver provides support for the voltage regulators of the S2DOS05. + The S2DOS05 is a companion power management IC for the smart phones. + The S2DOS05 has 4 LDOs and 1 BUCK outputs. + config REGULATOR_S2MPA01 tristate "Samsung S2MPA01 voltage regulator" depends on MFD_SEC_CORE || COMPILE_TEST diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index a61fa42b13c4..d26e0db7c825 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -154,6 +154,7 @@ obj-$(CONFIG_REGULATOR_RTMV20) +=3D rtmv20-regulator.o obj-$(CONFIG_REGULATOR_RTQ2134) +=3D rtq2134-regulator.o obj-$(CONFIG_REGULATOR_RTQ6752) +=3D rtq6752-regulator.o obj-$(CONFIG_REGULATOR_RTQ2208) +=3D rtq2208-regulator.o +obj-$(CONFIG_REGULATOR_S2DOS05) +=3D s2dos05-regulator.o obj-$(CONFIG_REGULATOR_S2MPA01) +=3D s2mpa01.o obj-$(CONFIG_REGULATOR_S2MPS11) +=3D s2mps11.o obj-$(CONFIG_REGULATOR_S5M8767) +=3D s5m8767.o diff --git a/drivers/regulator/s2dos05-regulator.c b/drivers/regulator/s2do= s05-regulator.c new file mode 100644 index 000000000000..1325c8311b08 --- /dev/null +++ b/drivers/regulator/s2dos05-regulator.c @@ -0,0 +1,176 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// s2dos05.c - Regulator driver for the Samsung s2dos05 +// +// Copyright (C) 2024 Dzmitry Sankouski + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct s2dos05_data { + struct regmap *regmap; + struct device *dev; +}; + +static const struct regulator_ops s2dos05_ops =3D { + .list_voltage =3D regulator_list_voltage_linear, + .map_voltage =3D regulator_map_voltage_linear, + .is_enabled =3D regulator_is_enabled_regmap, + .enable =3D regulator_enable_regmap, + .disable =3D regulator_disable_regmap, + .get_voltage_sel =3D regulator_get_voltage_sel_regmap, + .set_voltage_sel =3D regulator_set_voltage_sel_regmap, + .set_voltage_time_sel =3D regulator_set_voltage_time_sel, + .set_active_discharge =3D regulator_set_active_discharge_regmap, +}; + +#define _BUCK(macro) S2DOS05_BUCK##macro +#define _buck_ops(num) s2dos05_ops##num + +#define _LDO(macro) S2DOS05_LDO##macro +#define _REG(ctrl) S2DOS05_REG##ctrl +#define _ldo_ops(num) s2dos05_ops##num +#define _MASK(macro) S2DOS05_ENABLE_MASK##macro +#define _TIME(macro) S2DOS05_ENABLE_TIME##macro + +#define BUCK_DESC(_name, _id, _ops, m, s, v, e, em, t, a) { \ + .name =3D _name, \ + .id =3D _id, \ + .ops =3D _ops, \ + .of_match =3D of_match_ptr(_name), \ + .regulators_node =3D of_match_ptr("regulators"), \ + .type =3D REGULATOR_VOLTAGE, \ + .owner =3D THIS_MODULE, \ + .min_uV =3D m, \ + .uV_step =3D s, \ + .n_voltages =3D S2DOS05_BUCK_N_VOLTAGES, \ + .vsel_reg =3D v, \ + .vsel_mask =3D S2DOS05_BUCK_VSEL_MASK, \ + .enable_reg =3D e, \ + .enable_mask =3D em, \ + .enable_time =3D t, \ + .active_discharge_off =3D 0, \ + .active_discharge_on =3D S2DOS05_BUCK_FD_MASK, \ + .active_discharge_reg =3D a, \ + .active_discharge_mask =3D S2DOS05_BUCK_FD_MASK \ +} + +#define LDO_DESC(_name, _id, _ops, m, s, v, e, em, t, a) { \ + .name =3D _name, \ + .id =3D _id, \ + .ops =3D _ops, \ + .of_match =3D of_match_ptr(_name), \ + .regulators_node =3D of_match_ptr("regulators"), \ + .type =3D REGULATOR_VOLTAGE, \ + .owner =3D THIS_MODULE, \ + .min_uV =3D m, \ + .uV_step =3D s, \ + .n_voltages =3D S2DOS05_LDO_N_VOLTAGES, \ + .vsel_reg =3D v, \ + .vsel_mask =3D S2DOS05_LDO_VSEL_MASK, \ + .enable_reg =3D e, \ + .enable_mask =3D em, \ + .enable_time =3D t, \ + .active_discharge_off =3D 0, \ + .active_discharge_on =3D S2DOS05_LDO_FD_MASK, \ + .active_discharge_reg =3D a, \ + .active_discharge_mask =3D S2DOS05_LDO_FD_MASK \ +} + +static struct regulator_desc regulators[S2DOS05_REGULATOR_MAX] =3D { + // name, id, ops, min_uv, uV_step, vsel_reg, enable_reg + LDO_DESC("ldo1", _LDO(1), &_ldo_ops(), _LDO(_MIN1), + _LDO(_STEP1), _REG(_LDO1_CFG), + _REG(_EN), _MASK(_L1), _TIME(_LDO), _REG(_LDO1_CFG)), + LDO_DESC("ldo2", _LDO(2), &_ldo_ops(), _LDO(_MIN1), + _LDO(_STEP1), _REG(_LDO2_CFG), + _REG(_EN), _MASK(_L2), _TIME(_LDO), _REG(_LDO2_CFG)), + LDO_DESC("ldo3", _LDO(3), &_ldo_ops(), _LDO(_MIN2), + _LDO(_STEP1), _REG(_LDO3_CFG), + _REG(_EN), _MASK(_L3), _TIME(_LDO), _REG(_LDO3_CFG)), + LDO_DESC("ldo4", _LDO(4), &_ldo_ops(), _LDO(_MIN2), + _LDO(_STEP1), _REG(_LDO4_CFG), + _REG(_EN), _MASK(_L4), _TIME(_LDO), _REG(_LDO4_CFG)), + BUCK_DESC("buck1", _BUCK(1), &_buck_ops(), _BUCK(_MIN1), + _BUCK(_STEP1), _REG(_BUCK_VOUT), + _REG(_EN), _MASK(_B1), _TIME(_BUCK), _REG(_BUCK_CFG)), +}; + +static int s2dos05_pmic_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct sec_pmic_dev *iodev =3D dev_get_drvdata(pdev->dev.parent); + struct of_regulator_match *rdata =3D NULL; + struct s2dos05_data *s2dos05; + struct regulator_config config =3D { }; + unsigned int rdev_num =3D ARRAY_SIZE(regulators); + int i, ret; + + s2dos05 =3D devm_kzalloc(dev, sizeof(struct s2dos05_data), + GFP_KERNEL); + if (!s2dos05) + return -ENOMEM; + + platform_set_drvdata(pdev, s2dos05); + + rdata =3D devm_kcalloc(dev, rdev_num, sizeof(*rdata), GFP_KERNEL); + if (!rdata) + return -ENOMEM; + + for (i =3D 0; i < rdev_num; i++) + rdata[i].name =3D regulators[i].name; + + s2dos05->regmap =3D iodev->regmap_pmic; + s2dos05->dev =3D dev; + if (!dev->of_node) + dev->of_node =3D dev->parent->of_node; + + for (i =3D 0; i < rdev_num; i++) { + struct regulator_dev *regulator; + + config.init_data =3D rdata[i].init_data; + config.of_node =3D rdata[i].of_node; + config.dev =3D dev; + config.driver_data =3D s2dos05; + regulator =3D devm_regulator_register(&pdev->dev, + ®ulators[i], &config); + if (IS_ERR(regulator)) { + ret =3D PTR_ERR(regulator); + dev_err(&pdev->dev, "regulator init failed for %d\n", + i); + } + } + + return ret; +} + +static const struct platform_device_id s2dos05_pmic_id[] =3D { + { "s2dos05-regulator" }, + { }, +}; +MODULE_DEVICE_TABLE(platform, s2dos05_pmic_id); + +static struct platform_driver s2dos05_platform_driver =3D { + .driver =3D { + .name =3D "s2dos05", + }, + .probe =3D s2dos05_pmic_probe, + .id_table =3D s2dos05_pmic_id, +}; +module_platform_driver(s2dos05_platform_driver); + +MODULE_AUTHOR("Dzmitry Sankouski "); +MODULE_DESCRIPTION("SAMSUNG s2dos05 Regulator Driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/regulator/s2dos05.h b/include/linux/regulator/s2= dos05.h new file mode 100644 index 000000000000..2e89fcbce769 --- /dev/null +++ b/include/linux/regulator/s2dos05.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +// s2dos05.h +// +// Copyright (c) 2016 Samsung Electronics Co., Ltd +// http://www.samsung.com +// Copyright (C) 2024 Dzmitry Sankouski + +#ifndef __LINUX_S2DOS05_H +#define __LINUX_S2DOS05_H + +// S2DOS05 registers +// Slave Addr : 0xC0 +enum S2DOS05_reg { + S2DOS05_REG_DEV_ID, + S2DOS05_REG_TOPSYS_STAT, + S2DOS05_REG_STAT, + S2DOS05_REG_EN, + S2DOS05_REG_LDO1_CFG, + S2DOS05_REG_LDO2_CFG, + S2DOS05_REG_LDO3_CFG, + S2DOS05_REG_LDO4_CFG, + S2DOS05_REG_BUCK_CFG, + S2DOS05_REG_BUCK_VOUT, + S2DOS05_REG_IRQ_MASK =3D 0x0D, + S2DOS05_REG_SSD_TSD =3D 0x0E, + S2DOS05_REG_OCL =3D 0x10, + S2DOS05_REG_IRQ =3D 0x11 +}; + +// S2DOS05 regulator ids +enum S2DOS05_regulators { + S2DOS05_LDO1, + S2DOS05_LDO2, + S2DOS05_LDO3, + S2DOS05_LDO4, + S2DOS05_BUCK1, + S2DOS05_REG_MAX, +}; + +#define S2DOS05_IRQ_PWRMT_MASK BIT(5) +#define S2DOS05_IRQ_TSD_MASK BIT(4) +#define S2DOS05_IRQ_SSD_MASK BIT(3) +#define S2DOS05_IRQ_SCP_MASK BIT(2) +#define S2DOS05_IRQ_UVLO_MASK BIT(1) +#define S2DOS05_IRQ_OCD_MASK BIT(0) + +#define S2DOS05_BUCK_MIN1 506250 +#define S2DOS05_LDO_MIN1 1500000 +#define S2DOS05_LDO_MIN2 2700000 +#define S2DOS05_BUCK_STEP1 6250 +#define S2DOS05_LDO_STEP1 25000 +#define S2DOS05_LDO_VSEL_MASK 0x7F +#define S2DOS05_LDO_FD_MASK 0x80 +#define S2DOS05_BUCK_VSEL_MASK 0xFF +#define S2DOS05_BUCK_FD_MASK 0x08 + +#define S2DOS05_ENABLE_MASK_L1 BIT(0) +#define S2DOS05_ENABLE_MASK_L2 BIT(1) +#define S2DOS05_ENABLE_MASK_L3 BIT(2) +#define S2DOS05_ENABLE_MASK_L4 BIT(3) +#define S2DOS05_ENABLE_MASK_B1 BIT(4) + +#define S2DOS05_RAMP_DELAY 12000 + +#define S2DOS05_ENABLE_TIME_LDO 50 +#define S2DOS05_ENABLE_TIME_BUCK 350 + +#define S2DOS05_LDO_N_VOLTAGES (S2DOS05_LDO_VSEL_MASK + 1) +#define S2DOS05_BUCK_N_VOLTAGES (S2DOS05_BUCK_VSEL_MASK + 1) + +#define S2DOS05_REGULATOR_MAX (S2DOS05_REG_MAX) + +#endif // __LINUX_S2DOS05_H --=20 2.39.2