From c58ad0f2b052b5675d6394e03713ee41e721b44c Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 12 Jan 2021 18:00:56 +0900 Subject: mfd: bd9571mwv: Use devm_mfd_add_devices() To remove mfd devices when unload this driver, should use devm_mfd_add_devices() instead. Fixes: d3ea21272094 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver") Signed-off-by: Yoshihiro Shimoda Acked-for-MFD-by: Lee Jones Reviewed-by: Geert Uytterhoeven Reviewed-by: Matti Vaittinen Signed-off-by: Lee Jones --- drivers/mfd/bd9571mwv.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index fab3cdc27ed6..19d57a45134c 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -185,9 +185,9 @@ static int bd9571mwv_probe(struct i2c_client *client, return ret; } - ret = mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, bd9571mwv_cells, - ARRAY_SIZE(bd9571mwv_cells), NULL, 0, - regmap_irq_get_domain(bd->irq_data)); + ret = devm_mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, + bd9571mwv_cells, ARRAY_SIZE(bd9571mwv_cells), + NULL, 0, regmap_irq_get_domain(bd->irq_data)); if (ret) { regmap_del_irq_chip(bd->irq, bd->irq_data); return ret; -- cgit v1.2.3 From bfb26be7fe90186e5d9fe704cc124ab77bb7d127 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 12 Jan 2021 18:01:04 +0900 Subject: mfd: bd9571mwv: Use the SPDX license identifier Use the SPDX license identifier instead of a local description. Signed-off-by: Yoshihiro Shimoda Reviewed-by: Geert Uytterhoeven Acked-for-MFD-by: Lee Jones Signed-off-by: Lee Jones --- drivers/mfd/bd9571mwv.c | 10 +--------- include/linux/mfd/bd9571mwv.h | 10 +--------- 2 files changed, 2 insertions(+), 18 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index 19d57a45134c..e68c3fabf9fc 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ROHM BD9571MWV-M MFD driver * * Copyright (C) 2017 Marek Vasut * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether expressed or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License version 2 for more details. - * * Based on the TPS65086 driver */ diff --git a/include/linux/mfd/bd9571mwv.h b/include/linux/mfd/bd9571mwv.h index eb05569f752b..bcc709293b24 100644 --- a/include/linux/mfd/bd9571mwv.h +++ b/include/linux/mfd/bd9571mwv.h @@ -1,17 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * ROHM BD9571MWV-M driver * * Copyright (C) 2017 Marek Vasut * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether expressed or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License version 2 for more details. - * * Based on the TPS65086 driver */ -- cgit v1.2.3 From 1e40a92c651f4bb383df757b69821f74820b6e6a Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 12 Jan 2021 18:01:05 +0900 Subject: mfd: bd9571mwv: Use devm_regmap_add_irq_chip() Use devm_regmap_add_irq_chip() to simplify the code. Signed-off-by: Yoshihiro Shimoda Acked-for-MFD-by: Lee Jones Reviewed-by: Matti Vaittinen Reviewed-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/bd9571mwv.c | 27 ++++++--------------------- 1 file changed, 6 insertions(+), 21 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index e68c3fabf9fc..49e968e20ddc 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -170,31 +170,17 @@ static int bd9571mwv_probe(struct i2c_client *client, if (ret) return ret; - ret = regmap_add_irq_chip(bd->regmap, bd->irq, IRQF_ONESHOT, 0, - &bd9571mwv_irq_chip, &bd->irq_data); + ret = devm_regmap_add_irq_chip(bd->dev, bd->regmap, bd->irq, + IRQF_ONESHOT, 0, &bd9571mwv_irq_chip, + &bd->irq_data); if (ret) { dev_err(bd->dev, "Failed to register IRQ chip\n"); return ret; } - ret = devm_mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, - bd9571mwv_cells, ARRAY_SIZE(bd9571mwv_cells), - NULL, 0, regmap_irq_get_domain(bd->irq_data)); - if (ret) { - regmap_del_irq_chip(bd->irq, bd->irq_data); - return ret; - } - - return 0; -} - -static int bd9571mwv_remove(struct i2c_client *client) -{ - struct bd9571mwv *bd = i2c_get_clientdata(client); - - regmap_del_irq_chip(bd->irq, bd->irq_data); - - return 0; + return devm_mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, + bd9571mwv_cells, ARRAY_SIZE(bd9571mwv_cells), + NULL, 0, regmap_irq_get_domain(bd->irq_data)); } static const struct of_device_id bd9571mwv_of_match_table[] = { @@ -215,7 +201,6 @@ static struct i2c_driver bd9571mwv_driver = { .of_match_table = bd9571mwv_of_match_table, }, .probe = bd9571mwv_probe, - .remove = bd9571mwv_remove, .id_table = bd9571mwv_id_table, }; module_i2c_driver(bd9571mwv_driver); -- cgit v1.2.3 From f16e1fd197f85a943b5880009f4aefe05a17df0d Mon Sep 17 00:00:00 2001 From: Khiem Nguyen Date: Tue, 12 Jan 2021 18:01:06 +0900 Subject: mfd: bd9571mwv: Make the driver more generic Since the driver supports BD9571MWV PMIC only, this patch makes the functions and data structure become more generic so that it can support other PMIC variants as well. Also remove printing part name which Lee Jones suggested. Signed-off-by: Khiem Nguyen Co-developed-by: Yoshihiro Shimoda Signed-off-by: Yoshihiro Shimoda Reviewed-by: Matti Vaittinen Acked-for-MFD-by: Lee Jones Signed-off-by: Lee Jones --- drivers/mfd/bd9571mwv.c | 77 +++++++++++++++++++++++-------------------- include/linux/mfd/bd9571mwv.h | 18 ++-------- 2 files changed, 43 insertions(+), 52 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index 49e968e20ddc..2c1fcbb6ff2b 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -3,6 +3,7 @@ * ROHM BD9571MWV-M MFD driver * * Copyright (C) 2017 Marek Vasut + * Copyright (C) 2020 Renesas Electronics Corporation * * Based on the TPS65086 driver */ @@ -102,13 +103,12 @@ static struct regmap_irq_chip bd9571mwv_irq_chip = { .num_irqs = ARRAY_SIZE(bd9571mwv_irqs), }; -static int bd9571mwv_identify(struct bd9571mwv *bd) +static int bd957x_identify(struct device *dev, struct regmap *regmap) { - struct device *dev = bd->dev; unsigned int value; int ret; - ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value); + ret = regmap_read(regmap, BD9571MWV_VENDOR_CODE, &value); if (ret) { dev_err(dev, "Failed to read vendor code register (ret=%i)\n", ret); @@ -121,66 +121,71 @@ static int bd9571mwv_identify(struct bd9571mwv *bd) return -EINVAL; } - ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value); + ret = regmap_read(regmap, BD9571MWV_PRODUCT_CODE, &value); if (ret) { dev_err(dev, "Failed to read product code register (ret=%i)\n", ret); return ret; } - - if (value != BD9571MWV_PRODUCT_CODE_VAL) { - dev_err(dev, "Invalid product code ID %02x (expected %02x)\n", - value, BD9571MWV_PRODUCT_CODE_VAL); - return -EINVAL; - } - - ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_REVISION, &value); + ret = regmap_read(regmap, BD9571MWV_PRODUCT_REVISION, &value); if (ret) { dev_err(dev, "Failed to read revision register (ret=%i)\n", ret); return ret; } - dev_info(dev, "Device: BD9571MWV rev. %d\n", value & 0xff); - return 0; } static int bd9571mwv_probe(struct i2c_client *client, - const struct i2c_device_id *ids) + const struct i2c_device_id *ids) { - struct bd9571mwv *bd; - int ret; - - bd = devm_kzalloc(&client->dev, sizeof(*bd), GFP_KERNEL); - if (!bd) - return -ENOMEM; + const struct regmap_config *regmap_config; + const struct regmap_irq_chip *irq_chip; + const struct mfd_cell *cells; + struct device *dev = &client->dev; + struct regmap *regmap; + struct regmap_irq_chip_data *irq_data; + int ret, num_cells, irq = client->irq; + + /* Read the PMIC product code */ + ret = i2c_smbus_read_byte_data(client, BD9571MWV_PRODUCT_CODE); + if (ret < 0) { + dev_err(dev, "Failed to read product code\n"); + return ret; + } - i2c_set_clientdata(client, bd); - bd->dev = &client->dev; - bd->irq = client->irq; + switch (ret) { + case BD9571MWV_PRODUCT_CODE_BD9571MWV: + regmap_config = &bd9571mwv_regmap_config; + irq_chip = &bd9571mwv_irq_chip; + cells = bd9571mwv_cells; + num_cells = ARRAY_SIZE(bd9571mwv_cells); + break; + default: + dev_err(dev, "Unsupported device 0x%x\n", ret); + return -ENODEV; + } - bd->regmap = devm_regmap_init_i2c(client, &bd9571mwv_regmap_config); - if (IS_ERR(bd->regmap)) { - dev_err(bd->dev, "Failed to initialize register map\n"); - return PTR_ERR(bd->regmap); + regmap = devm_regmap_init_i2c(client, regmap_config); + if (IS_ERR(regmap)) { + dev_err(dev, "Failed to initialize register map\n"); + return PTR_ERR(regmap); } - ret = bd9571mwv_identify(bd); + ret = bd957x_identify(dev, regmap); if (ret) return ret; - ret = devm_regmap_add_irq_chip(bd->dev, bd->regmap, bd->irq, - IRQF_ONESHOT, 0, &bd9571mwv_irq_chip, - &bd->irq_data); + ret = devm_regmap_add_irq_chip(dev, regmap, irq, IRQF_ONESHOT, 0, + irq_chip, &irq_data); if (ret) { - dev_err(bd->dev, "Failed to register IRQ chip\n"); + dev_err(dev, "Failed to register IRQ chip\n"); return ret; } - return devm_mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, - bd9571mwv_cells, ARRAY_SIZE(bd9571mwv_cells), - NULL, 0, regmap_irq_get_domain(bd->irq_data)); + return devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, cells, num_cells, + NULL, 0, regmap_irq_get_domain(irq_data)); } static const struct of_device_id bd9571mwv_of_match_table[] = { diff --git a/include/linux/mfd/bd9571mwv.h b/include/linux/mfd/bd9571mwv.h index bcc709293b24..e1716eca6bb5 100644 --- a/include/linux/mfd/bd9571mwv.h +++ b/include/linux/mfd/bd9571mwv.h @@ -3,6 +3,7 @@ * ROHM BD9571MWV-M driver * * Copyright (C) 2017 Marek Vasut + * Copyright (C) 2020 Renesas Electronics Corporation * * Based on the TPS65086 driver */ @@ -17,7 +18,7 @@ #define BD9571MWV_VENDOR_CODE 0x00 #define BD9571MWV_VENDOR_CODE_VAL 0xdb #define BD9571MWV_PRODUCT_CODE 0x01 -#define BD9571MWV_PRODUCT_CODE_VAL 0x60 +#define BD9571MWV_PRODUCT_CODE_BD9571MWV 0x60 #define BD9571MWV_PRODUCT_REVISION 0x02 #define BD9571MWV_I2C_FUSA_MODE 0x10 @@ -94,19 +95,4 @@ enum bd9571mwv_irqs { BD9571MWV_IRQ_WDT_OF, BD9571MWV_IRQ_BKUP_TRG, }; - -/** - * struct bd9571mwv - state holder for the bd9571mwv driver - * - * Device data may be used to access the BD9571MWV chip - */ -struct bd9571mwv { - struct device *dev; - struct regmap *regmap; - - /* IRQ Data */ - int irq; - struct regmap_irq_chip_data *irq_data; -}; - #endif /* __LINUX_MFD_BD9571MWV_H */ -- cgit v1.2.3 From b2548da647bb04737196ffd945505d47a166239b Mon Sep 17 00:00:00 2001 From: Khiem Nguyen Date: Tue, 12 Jan 2021 18:01:07 +0900 Subject: mfd: bd9571mwv: Add support for BD9574MWF The new PMIC BD9574MWF inherits features from BD9571MWV. Add the support of new PMIC to existing bd9571mwv driver. Signed-off-by: Khiem Nguyen Co-developed-by: Yoshihiro Shimoda Signed-off-by: Yoshihiro Shimoda Reviewed-by: Matti Vaittinen Acked-for-MFD-by: Lee Jones Signed-off-by: Lee Jones --- drivers/mfd/bd9571mwv.c | 76 ++++++++++++++++++++++++++++++++++++++++++- include/linux/mfd/bd9571mwv.h | 17 ++++++++-- 2 files changed, 89 insertions(+), 4 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c index 2c1fcbb6ff2b..e15b1acfb063 100644 --- a/drivers/mfd/bd9571mwv.c +++ b/drivers/mfd/bd9571mwv.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * ROHM BD9571MWV-M MFD driver + * ROHM BD9571MWV-M and BD9574MVF-M core driver * * Copyright (C) 2017 Marek Vasut * Copyright (C) 2020 Renesas Electronics Corporation @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -103,6 +104,72 @@ static struct regmap_irq_chip bd9571mwv_irq_chip = { .num_irqs = ARRAY_SIZE(bd9571mwv_irqs), }; +static const struct mfd_cell bd9574mwf_cells[] = { + { .name = "bd9574mwf-regulator", }, + { .name = "bd9574mwf-gpio", }, +}; + +static const struct regmap_range bd9574mwf_readable_yes_ranges[] = { + regmap_reg_range(BD9571MWV_VENDOR_CODE, BD9571MWV_PRODUCT_REVISION), + regmap_reg_range(BD9571MWV_BKUP_MODE_CNT, BD9571MWV_BKUP_MODE_CNT), + regmap_reg_range(BD9571MWV_DVFS_VINIT, BD9571MWV_DVFS_SETVMAX), + regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_MONIVDAC), + regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN), + regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INTMASK), + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK), +}; + +static const struct regmap_access_table bd9574mwf_readable_table = { + .yes_ranges = bd9574mwf_readable_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(bd9574mwf_readable_yes_ranges), +}; + +static const struct regmap_range bd9574mwf_writable_yes_ranges[] = { + regmap_reg_range(BD9571MWV_BKUP_MODE_CNT, BD9571MWV_BKUP_MODE_CNT), + regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_SETVID), + regmap_reg_range(BD9571MWV_GPIO_DIR, BD9571MWV_GPIO_OUT), + regmap_reg_range(BD9571MWV_GPIO_INT_SET, BD9571MWV_GPIO_INTMASK), + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK), +}; + +static const struct regmap_access_table bd9574mwf_writable_table = { + .yes_ranges = bd9574mwf_writable_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(bd9574mwf_writable_yes_ranges), +}; + +static const struct regmap_range bd9574mwf_volatile_yes_ranges[] = { + regmap_reg_range(BD9571MWV_DVFS_MONIVDAC, BD9571MWV_DVFS_MONIVDAC), + regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN), + regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT), + regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ), +}; + +static const struct regmap_access_table bd9574mwf_volatile_table = { + .yes_ranges = bd9574mwf_volatile_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(bd9574mwf_volatile_yes_ranges), +}; + +static const struct regmap_config bd9574mwf_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .cache_type = REGCACHE_RBTREE, + .rd_table = &bd9574mwf_readable_table, + .wr_table = &bd9574mwf_writable_table, + .volatile_table = &bd9574mwf_volatile_table, + .max_register = 0xff, +}; + +static struct regmap_irq_chip bd9574mwf_irq_chip = { + .name = "bd9574mwf", + .status_base = BD9571MWV_INT_INTREQ, + .mask_base = BD9571MWV_INT_INTMASK, + .ack_base = BD9571MWV_INT_INTREQ, + .init_ack_masked = true, + .num_regs = 1, + .irqs = bd9571mwv_irqs, + .num_irqs = ARRAY_SIZE(bd9571mwv_irqs), +}; + static int bd957x_identify(struct device *dev, struct regmap *regmap) { unsigned int value; @@ -162,6 +229,12 @@ static int bd9571mwv_probe(struct i2c_client *client, cells = bd9571mwv_cells; num_cells = ARRAY_SIZE(bd9571mwv_cells); break; + case BD9571MWV_PRODUCT_CODE_BD9574MWF: + regmap_config = &bd9574mwf_regmap_config; + irq_chip = &bd9574mwf_irq_chip; + cells = bd9574mwf_cells; + num_cells = ARRAY_SIZE(bd9574mwf_cells); + break; default: dev_err(dev, "Unsupported device 0x%x\n", ret); return -ENODEV; @@ -190,6 +263,7 @@ static int bd9571mwv_probe(struct i2c_client *client, static const struct of_device_id bd9571mwv_of_match_table[] = { { .compatible = "rohm,bd9571mwv", }, + { .compatible = "rohm,bd9574mwf", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, bd9571mwv_of_match_table); diff --git a/include/linux/mfd/bd9571mwv.h b/include/linux/mfd/bd9571mwv.h index e1716eca6bb5..8efd99d07c9e 100644 --- a/include/linux/mfd/bd9571mwv.h +++ b/include/linux/mfd/bd9571mwv.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * ROHM BD9571MWV-M driver + * ROHM BD9571MWV-M and BD9574MWF-M driver * * Copyright (C) 2017 Marek Vasut * Copyright (C) 2020 Renesas Electronics Corporation @@ -14,11 +14,12 @@ #include #include -/* List of registers for BD9571MWV */ +/* List of registers for BD9571MWV and BD9574MWF */ #define BD9571MWV_VENDOR_CODE 0x00 #define BD9571MWV_VENDOR_CODE_VAL 0xdb #define BD9571MWV_PRODUCT_CODE 0x01 #define BD9571MWV_PRODUCT_CODE_BD9571MWV 0x60 +#define BD9571MWV_PRODUCT_CODE_BD9574MWF 0x74 #define BD9571MWV_PRODUCT_REVISION 0x02 #define BD9571MWV_I2C_FUSA_MODE 0x10 @@ -48,6 +49,7 @@ #define BD9571MWV_VD33_VID 0x44 #define BD9571MWV_DVFS_VINIT 0x50 +#define BD9574MWF_VD09_VINIT 0x51 #define BD9571MWV_DVFS_SETVMAX 0x52 #define BD9571MWV_DVFS_BOOSTVID 0x53 #define BD9571MWV_DVFS_SETVID 0x54 @@ -61,6 +63,7 @@ #define BD9571MWV_GPIO_INT_SET 0x64 #define BD9571MWV_GPIO_INT 0x65 #define BD9571MWV_GPIO_INTMASK 0x66 +#define BD9574MWF_GPIO_MUX 0x67 #define BD9571MWV_REG_KEEP(n) (0x70 + (n)) @@ -70,6 +73,8 @@ #define BD9571MWV_PROT_ERROR_STATUS2 0x83 #define BD9571MWV_PROT_ERROR_STATUS3 0x84 #define BD9571MWV_PROT_ERROR_STATUS4 0x85 +#define BD9574MWF_PROT_ERROR_STATUS5 0x86 +#define BD9574MWF_SYSTEM_ERROR_STATUS 0x87 #define BD9571MWV_INT_INTREQ 0x90 #define BD9571MWV_INT_INTREQ_MD1_INT BIT(0) @@ -82,6 +87,12 @@ #define BD9571MWV_INT_INTREQ_BKUP_TRG_INT BIT(7) #define BD9571MWV_INT_INTMASK 0x91 +#define BD9574MWF_SSCG_CNT 0xA0 +#define BD9574MWF_POFFB_MRB 0xA1 +#define BD9574MWF_SMRB_WR_PROT 0xA2 +#define BD9574MWF_SMRB_ASSERT 0xA3 +#define BD9574MWF_SMRB_STATUS 0xA4 + #define BD9571MWV_ACCESS_KEY 0xff /* Define the BD9571MWV IRQ numbers */ @@ -91,7 +102,7 @@ enum bd9571mwv_irqs { BD9571MWV_IRQ_MD2_E2, BD9571MWV_IRQ_PROT_ERR, BD9571MWV_IRQ_GP, - BD9571MWV_IRQ_128H_OF, + BD9571MWV_IRQ_128H_OF, /* BKUP_HOLD on BD9574MWF */ BD9571MWV_IRQ_WDT_OF, BD9571MWV_IRQ_BKUP_TRG, }; -- cgit v1.2.3 From 3c15e00e7b58bc2b37e53d2612f0a0163281be77 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Thu, 26 Nov 2020 11:41:42 +0100 Subject: mfd/bus: sunxi-rsb: Make .remove() callback return void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The driver core ignores the return value of struct device_driver::remove because there is only little that can be done. To simplify the quest to make this function return void, let struct sunxi_rsb_driver::remove return void, too. All users already unconditionally return 0, this commit makes this obvious and ensures future users don't behave differently. To simplify even further, make axp20x_device_remove() return void instead of returning 0 unconditionally, too. Signed-off-by: Uwe Kleine-König Reviewed-by: Chen-Yu Tsai Signed-off-by: Lee Jones --- drivers/bus/sunxi-rsb.c | 4 +++- drivers/mfd/axp20x-i2c.c | 4 +++- drivers/mfd/axp20x-rsb.c | 4 ++-- drivers/mfd/axp20x.c | 4 +--- include/linux/mfd/axp20x.h | 2 +- include/linux/sunxi-rsb.h | 2 +- 6 files changed, 11 insertions(+), 9 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c index 1bb00a959c67..117716e23ffb 100644 --- a/drivers/bus/sunxi-rsb.c +++ b/drivers/bus/sunxi-rsb.c @@ -170,7 +170,9 @@ static int sunxi_rsb_device_remove(struct device *dev) { const struct sunxi_rsb_driver *drv = to_sunxi_rsb_driver(dev->driver); - return drv->remove(to_sunxi_rsb_device(dev)); + drv->remove(to_sunxi_rsb_device(dev)); + + return 0; } static struct bus_type sunxi_rsb_bus = { diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c index 2cfde81f5fbf..00ab48018d8d 100644 --- a/drivers/mfd/axp20x-i2c.c +++ b/drivers/mfd/axp20x-i2c.c @@ -54,7 +54,9 @@ static int axp20x_i2c_remove(struct i2c_client *i2c) { struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); - return axp20x_device_remove(axp20x); + axp20x_device_remove(axp20x); + + return 0; } #ifdef CONFIG_OF diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c index 4cdc79f5cc48..214bc0d84d44 100644 --- a/drivers/mfd/axp20x-rsb.c +++ b/drivers/mfd/axp20x-rsb.c @@ -49,11 +49,11 @@ static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev) return axp20x_device_probe(axp20x); } -static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev) +static void axp20x_rsb_remove(struct sunxi_rsb_device *rdev) { struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev); - return axp20x_device_remove(axp20x); + axp20x_device_remove(axp20x); } static const struct of_device_id axp20x_rsb_of_match[] = { diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index aa59496e4376..3eae04e24ac8 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -987,7 +987,7 @@ int axp20x_device_probe(struct axp20x_dev *axp20x) } EXPORT_SYMBOL(axp20x_device_probe); -int axp20x_device_remove(struct axp20x_dev *axp20x) +void axp20x_device_remove(struct axp20x_dev *axp20x) { if (axp20x == axp20x_pm_power_off) { axp20x_pm_power_off = NULL; @@ -996,8 +996,6 @@ int axp20x_device_remove(struct axp20x_dev *axp20x) mfd_remove_devices(axp20x->dev); regmap_del_irq_chip(axp20x->irq, axp20x->regmap_irqc); - - return 0; } EXPORT_SYMBOL(axp20x_device_remove); diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h index fd5957c042da..9ab0e2fca7ea 100644 --- a/include/linux/mfd/axp20x.h +++ b/include/linux/mfd/axp20x.h @@ -696,6 +696,6 @@ int axp20x_device_probe(struct axp20x_dev *axp20x); * * This tells the axp20x core to remove the associated mfd devices */ -int axp20x_device_remove(struct axp20x_dev *axp20x); +void axp20x_device_remove(struct axp20x_dev *axp20x); #endif /* __LINUX_MFD_AXP20X_H */ diff --git a/include/linux/sunxi-rsb.h b/include/linux/sunxi-rsb.h index 7e75bb0346d0..bf0d365f471c 100644 --- a/include/linux/sunxi-rsb.h +++ b/include/linux/sunxi-rsb.h @@ -59,7 +59,7 @@ static inline void sunxi_rsb_device_set_drvdata(struct sunxi_rsb_device *rdev, struct sunxi_rsb_driver { struct device_driver driver; int (*probe)(struct sunxi_rsb_device *rdev); - int (*remove)(struct sunxi_rsb_device *rdev); + void (*remove)(struct sunxi_rsb_device *rdev); }; static inline struct sunxi_rsb_driver *to_sunxi_rsb_driver(struct device_driver *d) -- cgit v1.2.3