From 945eee6dd75294cd527b1ca6109758afb262a45c Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Fri, 16 Aug 2019 16:38:21 +0200 Subject: [PATCH 004/153] drv:mfd: Add support for AC200 Signed-off-by: Jernej Skrabec --- drivers/mfd/Kconfig | 9 ++ drivers/mfd/Makefile | 1 + drivers/mfd/ac200.c | 170 +++++++++++++++++++++++++++++++ include/linux/mfd/ac200.h | 208 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 388 insertions(+) create mode 100644 drivers/mfd/ac200.c create mode 100644 include/linux/mfd/ac200.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 30db49f31..473359275 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -190,6 +190,15 @@ config MFD_AC100 This driver include only the core APIs. You have to select individual components like codecs or RTC under the corresponding menus. +config MFD_AC200 + bool "X-Powers AC200" + select MFD_CORE + depends on I2C + help + If you say Y here you get support for the X-Powers AC200 IC. + This driver include only the core APIs. You have to select individual + components like Ethernet PHY or RTC under the corresponding menus. + config MFD_AXP20X tristate select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 457471478..b2e69fbce 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -141,6 +141,7 @@ obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o obj-$(CONFIG_MFD_AC100) += ac100.o +obj-$(CONFIG_MFD_AC200) += ac200.o obj-$(CONFIG_MFD_AXP20X) += axp20x.o obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o diff --git a/drivers/mfd/ac200.c b/drivers/mfd/ac200.c new file mode 100644 index 000000000..570573790 --- /dev/null +++ b/drivers/mfd/ac200.c @@ -0,0 +1,170 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * MFD core driver for X-Powers' AC200 IC + * + * The AC200 is a chip which is co-packaged with Allwinner H6 SoC and + * includes analog audio codec, analog TV encoder, ethernet PHY, eFuse + * and RTC. + * + * Copyright (c) 2020 Jernej Skrabec + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Interrupts */ +#define AC200_IRQ_RTC 0 +#define AC200_IRQ_EPHY 1 +#define AC200_IRQ_TVE 2 + +/* IRQ enable register */ +#define AC200_SYS_IRQ_ENABLE_OUT_EN BIT(15) +#define AC200_SYS_IRQ_ENABLE_RTC BIT(12) +#define AC200_SYS_IRQ_ENABLE_EPHY BIT(8) +#define AC200_SYS_IRQ_ENABLE_TVE BIT(4) + +static const struct regmap_range_cfg ac200_range_cfg[] = { + { + .range_min = AC200_SYS_VERSION, + .range_max = AC200_IC_CHARA1, + .selector_reg = AC200_TWI_REG_ADDR_H, + .selector_mask = 0xff, + .selector_shift = 0, + .window_start = 0, + .window_len = 256, + } +}; + +static const struct regmap_config ac200_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + .ranges = ac200_range_cfg, + .num_ranges = ARRAY_SIZE(ac200_range_cfg), + .max_register = AC200_IC_CHARA1, +}; + +static const struct regmap_irq ac200_regmap_irqs[] = { + REGMAP_IRQ_REG(AC200_IRQ_RTC, 0, AC200_SYS_IRQ_ENABLE_RTC), + REGMAP_IRQ_REG(AC200_IRQ_EPHY, 0, AC200_SYS_IRQ_ENABLE_EPHY), + REGMAP_IRQ_REG(AC200_IRQ_TVE, 0, AC200_SYS_IRQ_ENABLE_TVE), +}; + +static const struct regmap_irq_chip ac200_regmap_irq_chip = { + .name = "ac200_irq_chip", + .status_base = AC200_SYS_IRQ_STATUS, + .mask_base = AC200_SYS_IRQ_ENABLE, + .mask_invert = true, + .irqs = ac200_regmap_irqs, + .num_irqs = ARRAY_SIZE(ac200_regmap_irqs), + .num_regs = 1, +}; + +static const struct resource ephy_resource[] = { + DEFINE_RES_IRQ(AC200_IRQ_EPHY), +}; + +static const struct mfd_cell ac200_cells[] = { + { + .name = "ac200-ephy", + .num_resources = ARRAY_SIZE(ephy_resource), + .resources = ephy_resource, + .of_compatible = "x-powers,ac200-ephy", + }, +}; + +static int ac200_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct device *dev = &i2c->dev; + struct ac200_dev *ac200; + int ret; + + ac200 = devm_kzalloc(dev, sizeof(*ac200), GFP_KERNEL); + if (!ac200) + return -ENOMEM; + + i2c_set_clientdata(i2c, ac200); + + ac200->regmap = devm_regmap_init_i2c(i2c, &ac200_regmap_config); + if (IS_ERR(ac200->regmap)) { + ret = PTR_ERR(ac200->regmap); + dev_err(dev, "regmap init failed: %d\n", ret); + return ret; + } + + /* do a reset to put chip in a known state */ + + ret = regmap_write(ac200->regmap, AC200_SYS_CONTROL, 0); + if (ret) + return ret; + + ret = regmap_write(ac200->regmap, AC200_SYS_CONTROL, 1); + if (ret) + return ret; + + /* enable interrupt pin */ + + ret = regmap_write(ac200->regmap, AC200_SYS_IRQ_ENABLE, + AC200_SYS_IRQ_ENABLE_OUT_EN); + if (ret) + return ret; + + ret = regmap_add_irq_chip(ac200->regmap, i2c->irq, IRQF_ONESHOT, 0, + &ac200_regmap_irq_chip, &ac200->regmap_irqc); + if (ret) + return ret; + + ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, ac200_cells, + ARRAY_SIZE(ac200_cells), NULL, 0, NULL); + if (ret) { + dev_err(dev, "failed to add MFD devices: %d\n", ret); + regmap_del_irq_chip(i2c->irq, ac200->regmap_irqc); + return ret; + } + + return 0; +} + +static int ac200_i2c_remove(struct i2c_client *i2c) +{ + struct ac200_dev *ac200 = i2c_get_clientdata(i2c); + + regmap_write(ac200->regmap, AC200_SYS_CONTROL, 0); + + mfd_remove_devices(&i2c->dev); + regmap_del_irq_chip(i2c->irq, ac200->regmap_irqc); + + return 0; +} + +static const struct i2c_device_id ac200_ids[] = { + { "ac200", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(i2c, ac200_ids); + +static const struct of_device_id ac200_of_match[] = { + { .compatible = "x-powers,ac200" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ac200_of_match); + +static struct i2c_driver ac200_i2c_driver = { + .driver = { + .name = "ac200", + .of_match_table = of_match_ptr(ac200_of_match), + }, + .probe = ac200_i2c_probe, + .remove = ac200_i2c_remove, + .id_table = ac200_ids, +}; +module_i2c_driver(ac200_i2c_driver); + +MODULE_DESCRIPTION("MFD core driver for AC200"); +MODULE_AUTHOR("Jernej Skrabec "); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/ac200.h b/include/linux/mfd/ac200.h new file mode 100644 index 000000000..0c677094a --- /dev/null +++ b/include/linux/mfd/ac200.h @@ -0,0 +1,208 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AC200 register list + * + * Copyright (C) 2019 Jernej Skrabec + */ + +#ifndef __LINUX_MFD_AC200_H +#define __LINUX_MFD_AC200_H + +#include + +/* interface registers (can be accessed from any page) */ +#define AC200_TWI_CHANGE_TO_RSB 0x3E +#define AC200_TWI_PAD_DELAY 0xC4 +#define AC200_TWI_REG_ADDR_H 0xFE + +/* General registers */ +#define AC200_SYS_VERSION 0x0000 +#define AC200_SYS_CONTROL 0x0002 +#define AC200_SYS_IRQ_ENABLE 0x0004 +#define AC200_SYS_IRQ_STATUS 0x0006 +#define AC200_SYS_CLK_CTL 0x0008 +#define AC200_SYS_DLDO_OSC_CTL 0x000A +#define AC200_SYS_PLL_CTL0 0x000C +#define AC200_SYS_PLL_CTL1 0x000E +#define AC200_SYS_AUDIO_CTL0 0x0010 +#define AC200_SYS_AUDIO_CTL1 0x0012 +#define AC200_SYS_EPHY_CTL0 0x0014 +#define AC200_SYS_EPHY_CTL1 0x0016 +#define AC200_SYS_TVE_CTL0 0x0018 +#define AC200_SYS_TVE_CTL1 0x001A + +/* Audio Codec registers */ +#define AC200_AC_SYS_CLK_CTL 0x2000 +#define AC200_SYS_MOD_RST 0x2002 +#define AC200_SYS_SAMP_CTL 0x2004 +#define AC200_I2S_CTL 0x2100 +#define AC200_I2S_CLK 0x2102 +#define AC200_I2S_FMT0 0x2104 +#define AC200_I2S_FMT1 0x2108 +#define AC200_I2S_MIX_SRC 0x2114 +#define AC200_I2S_MIX_GAIN 0x2116 +#define AC200_I2S_DACDAT_DVC 0x2118 +#define AC200_I2S_ADCDAT_DVC 0x211A +#define AC200_AC_DAC_DPC 0x2200 +#define AC200_AC_DAC_MIX_SRC 0x2202 +#define AC200_AC_DAC_MIX_GAIN 0x2204 +#define AC200_DACA_OMIXER_CTRL 0x2220 +#define AC200_OMIXER_SR 0x2222 +#define AC200_LINEOUT_CTRL 0x2224 +#define AC200_AC_ADC_DPC 0x2300 +#define AC200_MBIAS_CTRL 0x2310 +#define AC200_ADC_MIC_CTRL 0x2320 +#define AC200_ADCMIXER_SR 0x2322 +#define AC200_ANALOG_TUNING0 0x232A +#define AC200_ANALOG_TUNING1 0x232C +#define AC200_AC_AGC_SEL 0x2480 +#define AC200_ADC_DAPLCTRL 0x2500 +#define AC200_ADC_DAPRCTRL 0x2502 +#define AC200_ADC_DAPLSTA 0x2504 +#define AC200_ADC_DAPRSTA 0x2506 +#define AC200_ADC_DAPLTL 0x2508 +#define AC200_ADC_DAPRTL 0x250A +#define AC200_ADC_DAPLHAC 0x250C +#define AC200_ADC_DAPLLAC 0x250E +#define AC200_ADC_DAPRHAC 0x2510 +#define AC200_ADC_DAPRLAC 0x2512 +#define AC200_ADC_DAPLDT 0x2514 +#define AC200_ADC_DAPLAT 0x2516 +#define AC200_ADC_DAPRDT 0x2518 +#define AC200_ADC_DAPRAT 0x251A +#define AC200_ADC_DAPNTH 0x251C +#define AC200_ADC_DAPLHNAC 0x251E +#define AC200_ADC_DAPLLNAC 0x2520 +#define AC200_ADC_DAPRHNAC 0x2522 +#define AC200_ADC_DAPRLNAC 0x2524 +#define AC200_AC_DAPHHPFC 0x2526 +#define AC200_AC_DAPLHPFC 0x2528 +#define AC200_AC_DAPOPT 0x252A +#define AC200_AC_DAC_DAPCTRL 0x3000 +#define AC200_AC_DRC_HHPFC 0x3002 +#define AC200_AC_DRC_LHPFC 0x3004 +#define AC200_AC_DRC_CTRL 0x3006 +#define AC200_AC_DRC_LPFHAT 0x3008 +#define AC200_AC_DRC_LPFLAT 0x300A +#define AC200_AC_DRC_RPFHAT 0x300C +#define AC200_AC_DRC_RPFLAT 0x300E +#define AC200_AC_DRC_LPFHRT 0x3010 +#define AC200_AC_DRC_LPFLRT 0x3012 +#define AC200_AC_DRC_RPFHRT 0x3014 +#define AC200_AC_DRC_RPFLRT 0x3016 +#define AC200_AC_DRC_LRMSHAT 0x3018 +#define AC200_AC_DRC_LRMSLAT 0x301A +#define AC200_AC_DRC_RRMSHAT 0x301C +#define AC200_AC_DRC_RRMSLAT 0x301E +#define AC200_AC_DRC_HCT 0x3020 +#define AC200_AC_DRC_LCT 0x3022 +#define AC200_AC_DRC_HKC 0x3024 +#define AC200_AC_DRC_LKC 0x3026 +#define AC200_AC_DRC_HOPC 0x3028 +#define AC200_AC_DRC_LOPC 0x302A +#define AC200_AC_DRC_HLT 0x302C +#define AC200_AC_DRC_LLT 0x302E +#define AC200_AC_DRC_HKI 0x3030 +#define AC200_AC_DRC_LKI 0x3032 +#define AC200_AC_DRC_HOPL 0x3034 +#define AC200_AC_DRC_LOPL 0x3036 +#define AC200_AC_DRC_HET 0x3038 +#define AC200_AC_DRC_LET 0x303A +#define AC200_AC_DRC_HKE 0x303C +#define AC200_AC_DRC_LKE 0x303E +#define AC200_AC_DRC_HOPE 0x3040 +#define AC200_AC_DRC_LOPE 0x3042 +#define AC200_AC_DRC_HKN 0x3044 +#define AC200_AC_DRC_LKN 0x3046 +#define AC200_AC_DRC_SFHAT 0x3048 +#define AC200_AC_DRC_SFLAT 0x304A +#define AC200_AC_DRC_SFHRT 0x304C +#define AC200_AC_DRC_SFLRT 0x304E +#define AC200_AC_DRC_MXGHS 0x3050 +#define AC200_AC_DRC_MXGLS 0x3052 +#define AC200_AC_DRC_MNGHS 0x3054 +#define AC200_AC_DRC_MNGLS 0x3056 +#define AC200_AC_DRC_EPSHC 0x3058 +#define AC200_AC_DRC_EPSLC 0x305A +#define AC200_AC_DRC_HPFHGAIN 0x305E +#define AC200_AC_DRC_HPFLGAIN 0x3060 +#define AC200_AC_DRC_BISTCR 0x3100 +#define AC200_AC_DRC_BISTST 0x3102 + +/* TVE registers */ +#define AC200_TVE_CTL0 0x4000 +#define AC200_TVE_CTL1 0x4002 +#define AC200_TVE_MOD0 0x4004 +#define AC200_TVE_MOD1 0x4006 +#define AC200_TVE_DAC_CFG0 0x4008 +#define AC200_TVE_DAC_CFG1 0x400A +#define AC200_TVE_YC_DELAY 0x400C +#define AC200_TVE_YC_FILTER 0x400E +#define AC200_TVE_BURST_FRQ0 0x4010 +#define AC200_TVE_BURST_FRQ1 0x4012 +#define AC200_TVE_FRONT_PORCH 0x4014 +#define AC200_TVE_BACK_PORCH 0x4016 +#define AC200_TVE_TOTAL_LINE 0x401C +#define AC200_TVE_FIRST_ACTIVE 0x401E +#define AC200_TVE_BLACK_LEVEL 0x4020 +#define AC200_TVE_BLANK_LEVEL 0x4022 +#define AC200_TVE_PLUG_EN 0x4030 +#define AC200_TVE_PLUG_IRQ_EN 0x4032 +#define AC200_TVE_PLUG_IRQ_STA 0x4034 +#define AC200_TVE_PLUG_STA 0x4038 +#define AC200_TVE_PLUG_DEBOUNCE 0x4040 +#define AC200_TVE_DAC_TEST 0x4042 +#define AC200_TVE_PLUG_PULSE_LEVEL 0x40F4 +#define AC200_TVE_PLUG_PULSE_START 0x40F8 +#define AC200_TVE_PLUG_PULSE_PERIOD 0x40FA +#define AC200_TVE_IF_CTL 0x5000 +#define AC200_TVE_IF_TIM0 0x5008 +#define AC200_TVE_IF_TIM1 0x500A +#define AC200_TVE_IF_TIM2 0x500C +#define AC200_TVE_IF_TIM3 0x500E +#define AC200_TVE_IF_SYNC0 0x5010 +#define AC200_TVE_IF_SYNC1 0x5012 +#define AC200_TVE_IF_SYNC2 0x5014 +#define AC200_TVE_IF_TIM4 0x5016 +#define AC200_TVE_IF_STATUS 0x5018 + +/* EPHY registers */ +#define AC200_EPHY_CTL 0x6000 +#define AC200_EPHY_BIST 0x6002 + +/* eFuse registers (0x8000 - 0x9FFF, layout unknown) */ + +/* RTC registers */ +#define AC200_LOSC_CTRL0 0xA000 +#define AC200_LOSC_CTRL1 0xA002 +#define AC200_LOSC_AUTO_SWT_STA 0xA004 +#define AC200_INTOSC_CLK_PRESCAL 0xA008 +#define AC200_RTC_YY_MM_DD0 0xA010 +#define AC200_RTC_YY_MM_DD1 0xA012 +#define AC200_RTC_HH_MM_SS0 0xA014 +#define AC200_RTC_HH_MM_SS1 0xA016 +#define AC200_ALARM0_CUR_VLU0 0xA024 +#define AC200_ALARM0_CUR_VLU1 0xA026 +#define AC200_ALARM0_ENABLE 0xA028 +#define AC200_ALARM0_IRQ_EN 0xA02C +#define AC200_ALARM0_IRQ_STA 0xA030 +#define AC200_ALARM1_WK_HH_MM_SS0 0xA040 +#define AC200_ALARM1_WK_HH_MM_SS1 0xA042 +#define AC200_ALARM1_ENABLE 0xA044 +#define AC200_ALARM1_IRQ_EN 0xA048 +#define AC200_ALARM1_IRQ_STA 0xA04C +#define AC200_ALARM_CONFIG 0xA050 +#define AC200_LOSC_OUT_GATING 0xA060 +#define AC200_GP_DATA(x) (0xA100 + (x) * 2) +#define AC200_RTC_DEB 0xA170 +#define AC200_GPL_HOLD_OUTPUT 0xA180 +#define AC200_VDD_RTC 0xA190 +#define AC200_IC_CHARA0 0xA1F0 +#define AC200_IC_CHARA1 0xA1F2 + +struct ac200_dev { + struct regmap *regmap; + struct regmap_irq_chip_data *regmap_irqc; +}; + +#endif /* __LINUX_MFD_AC200_H */ -- 2.35.3