From 9cd192293f95533131e237c23b2dd96e0e86b613 Mon Sep 17 00:00:00 2001 From: Wyon Bi Date: Tue, 22 Nov 2022 08:06:35 +0000 Subject: [PATCH] Revert "mfd: Add support for Maxim MAX96752F" This reverts commit ad3d90b0bad420085c681ff8bb6db6365982c6ae. Delete this unused driver. Signed-off-by: Wyon Bi Change-Id: Ie3f71ea9cfb53751e7f1370ca95acfe9726e9696 --- drivers/mfd/Kconfig | 9 -- drivers/mfd/Makefile | 1 - drivers/mfd/max96752f.c | 205 ---------------------------------- include/linux/mfd/max96752f.h | 114 ------------------- 4 files changed, 329 deletions(-) delete mode 100644 drivers/mfd/max96752f.c delete mode 100644 include/linux/mfd/max96752f.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9d3d6ca083c2..72eabcbc742e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -930,15 +930,6 @@ config MFD_MAX96745 help Say yes here to add support for Maxim Semiconductor MAX96745. -config MFD_MAX96752F - tristate "Maxim Semiconductor MAX96752F GMSL2 Deserializer Support" - depends on I2C - select MFD_CORE - select REGMAP_I2C - select I2C_MUX - help - Say yes here to add support for Maxim Semiconductor MAX96752F. - config MFD_MAX96755F tristate "Maxim Semiconductor MAX96755 GMSL2 Serializer Support" depends on I2C diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 6ae9047e3652..e723deea8f45 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -171,7 +171,6 @@ obj-$(CONFIG_MFD_MAX8925) += max8925.o obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o obj-$(CONFIG_MFD_MAX8998) += max8998.o max8998-irq.o obj-$(CONFIG_MFD_MAX96745) += max96745.o -obj-$(CONFIG_MFD_MAX96752F) += max96752f.o obj-$(CONFIG_MFD_MAX96755F) += max96755f.o obj-$(CONFIG_MFD_MAX96776) += max96776.o diff --git a/drivers/mfd/max96752f.c b/drivers/mfd/max96752f.c deleted file mode 100644 index 4fe239f10fb5..000000000000 --- a/drivers/mfd/max96752f.c +++ /dev/null @@ -1,205 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Maxim MAX96752F MFD driver - * - * Copyright (C) 2022 Rockchip Electronics Co. Ltd. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -static const struct mfd_cell max96752f_devs[] = { - { - .name = "max96752f-pinctrl", - .of_compatible = "maxim,max96752f-pinctrl", - }, { - .name = "max96752f-gpio", - .of_compatible = "maxim,max96752f-gpio", - }, { - .name = "max96752f-bridge", - .of_compatible = "maxim,max96752f-bridge", - }, -}; - -static int max96752f_select(struct i2c_mux_core *muxc, u32 chan) -{ - return 0; -} - -static const struct regmap_config max96752f_regmap_config = { - .name = "max96752f", - .reg_bits = 16, - .val_bits = 8, - .max_register = 0x25d, -}; - -static const unsigned short addr_list[] = { - 0x48, 0x4a, 0x4c, 0x68, 0x6a, 0x6c, 0x28, 0x2a, I2C_CLIENT_END -}; - -void max96752f_init(struct max96752f *max96752f) -{ - struct i2c_client *client = max96752f->client; - u16 addr = client->addr; - u32 id; - int i, ret; - - for (i = 0; addr_list[i] != I2C_CLIENT_END; i++) { - client->addr = addr_list[i]; - ret = regmap_read(max96752f->regmap, 0x000d, &id); - if (ret < 0) - continue; - - if (id == 0x82) { - regmap_write(max96752f->regmap, 0x0000, addr << 1); - break; - } - } - - client->addr = addr; - - regmap_update_bits(max96752f->regmap, 0x0050, STR_SEL, - FIELD_PREP(STR_SEL, max96752f->stream_id)); - regmap_update_bits(max96752f->regmap, 0x0073, TX_SRC_ID, - FIELD_PREP(TX_SRC_ID, max96752f->stream_id)); -} -EXPORT_SYMBOL(max96752f_init); - -static void max96752f_power_on(struct max96752f *max96752f) -{ - if (max96752f->enable_gpio) { - gpiod_direction_output(max96752f->enable_gpio, 1); - msleep(500); - } -} - -static void max96752f_power_off(struct max96752f *max96752f) -{ - if (max96752f->enable_gpio) - gpiod_direction_output(max96752f->enable_gpio, 0); -} - -static int max96752f_i2c_probe(struct i2c_client *client) -{ - struct device *dev = &client->dev; - struct device_node *child; - struct max96752f *max96752f; - unsigned int nr = 0; - int ret; - - for_each_available_child_of_node(dev->of_node, child) { - if (!of_find_property(child, "reg", NULL)) - continue; - - nr++; - } - - max96752f = devm_kzalloc(dev, sizeof(*max96752f), GFP_KERNEL); - if (!max96752f) - return -ENOMEM; - - max96752f->muxc = i2c_mux_alloc(client->adapter, dev, nr, 0, - I2C_MUX_LOCKED, max96752f_select, NULL); - if (!max96752f->muxc) - return -ENOMEM; - - max96752f->dev = dev; - max96752f->client = client; - - max96752f->enable_gpio = devm_gpiod_get_optional(dev, "enable", - GPIOD_ASIS); - if (IS_ERR(max96752f->enable_gpio)) - return dev_err_probe(dev, PTR_ERR(max96752f->enable_gpio), - "failed to get enable GPIO\n"); - - ret = device_property_read_u32(dev->parent, "reg", &max96752f->stream_id); - if (ret) - return dev_err_probe(dev, ret, "failed to get gmsl id\n"); - - i2c_set_clientdata(client, max96752f); - - max96752f->regmap = devm_regmap_init_i2c(client, - &max96752f_regmap_config); - if (IS_ERR(max96752f->regmap)) - return dev_err_probe(dev, PTR_ERR(max96752f->regmap), - "failed to initialize regmap\n"); - - max96752f_power_on(max96752f); - max96752f_init(max96752f); - - ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, max96752f_devs, - ARRAY_SIZE(max96752f_devs), NULL, 0, NULL); - if (ret) - return ret; - - for_each_available_child_of_node(dev->of_node, child) { - if (of_property_read_u32(child, "reg", &nr)) - continue; - - ret = i2c_mux_add_adapter(max96752f->muxc, 0, nr, 0); - if (ret) { - i2c_mux_del_adapters(max96752f->muxc); - return ret; - } - } - - return 0; -} - -static void max96752f_i2c_shutdown(struct i2c_client *client) -{ - struct max96752f *max96752f = i2c_get_clientdata(client); - - regmap_update_bits(max96752f->regmap, 0x0010, RESET_ALL, - FIELD_PREP(RESET_ALL, 1)); - - max96752f_power_off(max96752f); -} - -static int __maybe_unused max96752f_suspend(struct device *dev) -{ - struct max96752f *max96752f = dev_get_drvdata(dev); - - max96752f_power_off(max96752f); - - return 0; -} - -static int __maybe_unused max96752f_resume(struct device *dev) -{ - struct max96752f *max96752f = dev_get_drvdata(dev); - - max96752f_power_on(max96752f); - - return 0; -} - -static SIMPLE_DEV_PM_OPS(max96752f_pm_ops, max96752f_suspend, max96752f_resume); - -static const struct of_device_id max96752f_of_match[] = { - { .compatible = "maxim,max96752f", }, - {} -}; -MODULE_DEVICE_TABLE(of, max96752f_of_match); - -static struct i2c_driver max96752f_i2c_driver = { - .driver = { - .name = "max96752f", - .of_match_table = of_match_ptr(max96752f_of_match), - .pm = &max96752f_pm_ops, - }, - .probe_new = max96752f_i2c_probe, - .shutdown = max96752f_i2c_shutdown, -}; - -module_i2c_driver(max96752f_i2c_driver); - -MODULE_AUTHOR("Wyon Bi "); -MODULE_DESCRIPTION("Maxim MAX96752F MFD driver"); -MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/max96752f.h b/include/linux/mfd/max96752f.h deleted file mode 100644 index 78cc3f6b7dae..000000000000 --- a/include/linux/mfd/max96752f.h +++ /dev/null @@ -1,114 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Defining registers address and its bit definitions of MAX96752F - * - * Copyright (c) 2022 Rockchip Electronics Co. Ltd. - */ - -#ifndef _MFD_MAX96752F_H_ -#define _MFD_MAX96752F_H_ - -#include - -#define GPIO_A_REG(gpio) (0x0200 + ((gpio) * 3)) -#define GPIO_B_REG(gpio) (0x0201 + ((gpio) * 3)) -#define GPIO_C_REG(gpio) (0x0202 + ((gpio) * 3)) -#define OLDI_REG(x) (0x01cd + (x)) - -/* 0000h */ -#define DEV_ADDR GENMASK(7, 1) -#define CFG_BLOCK BIT(0) - -/* 0001h */ -#define LVDS_HALFSW BIT(7) -#define IIC_2_EN BIT(5) -#define IIC_1_EN BIT(4) -#define TX_RATE GENMASK(3, 2) -#define RX_RATE GENMASK(1, 0) - -/* 0002h */ -#define LOCK_CFG BIT(7) -#define VID_EN BIT(6) -#define DIS_LOCAL_CC BIT(5) -#define DIS_REM_CC BIT(4) -#define AUD_TX_EN BIT(2) - -/* 0003h */ -#define GMSL2 BIT(5) -#define I2CSEL BIT(4) -#define UART_2_EN BIT(3) -#define UART_1_EN BIT(2) -#define VIDEO_LOCK BIT(0) - -/* 000Dh */ -#define DEV_ID GENMASK(7, 0) - -/* 000Eh */ -#define DEV_REV GENMASK(3, 0) - -/* 0010h */ -#define RESET_ALL BIT(7) -#define RESET_LINK BIT(6) -#define RESET_ONESHOT BIT(5) -#define AUTO_LINK BIT(4) -#define SLEEP BIT(3) -#define LINK_CFG GENMASK(1, 0) - -/* 0050h */ -#define STR_SEL GENMASK(1, 0) - -/* 0073h */ -#define TX_SRC_ID GENMASK(2, 0) - -/* 0108h */ -#define VID_LOCK BIT(6) - -/* 0140h */ -#define AUD_RX_EN BIT(0) - -/* 01CEh */ -#define OLDI_OUTSEL BIT(7) -#define OLDI_FORMAT BIT(6) -#define OLDI_4TH_LANE BIT(5) -#define OLDI_SWAP_AB BIT(4) -#define OLDI_SPL_EN BIT(3) -#define OLDI_SPL_MODE GENMASK(2, 1) -#define OLDI_SPL_POL BIT(0) - -/* 01CFh */ -#define PD_LVDS_B BIT(7) -#define PD_LVDS_A BIT(6) -#define OLDI_DUP BIT(1) -#define SSEN BIT(0) - -/* 0200h */ -#define RES_CFG BIT(7) -#define TX_PRIO BIT(6) -#define TX_COMP_EN BIT(5) -#define GPIO_OUT BIT(4) -#define GPIO_IN BIT(3) -#define GPIO_RX_EN BIT(2) -#define GPIO_TX_EN BIT(1) -#define GPIO_OUT_DIS BIT(0) - -/* 0201h */ -#define PULL_UPDN_SEL GENMASK(7, 6) -#define OUT_TYPE BIT(5) -#define GPIO_TX_ID GENMASK(4, 0) - -/* 0202h */ -#define OVR_RES_CFG BIT(7) -#define GPIO_RX_ID GENMASK(4, 0) - -struct max96752f { - struct device *dev; - struct regmap *regmap; - struct i2c_client *client; - struct i2c_mux_core *muxc; - struct gpio_desc *enable_gpio; - u32 stream_id; -}; - -void max96752f_init(struct max96752f *max96752f); - -#endif /* _MFD_MAX96752F_H_ */