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AJvYcCUUpuBZrEFZ0w1pFXr90TOWF369JWLRCYMWTknOn535Ht/ZNH02WJKzdqS2dnCTTcr+W/1cp2gfAYhsrijyOheSEhRMxjwoQuwx3WNnDX27sZ86IiFp+wHk9ZgS0K6DCwVaukrAHPbyxKWKrRdFir6fXFWFa2rI13NaCn2alCzn9oAt11A= X-Gm-Message-State: AOJu0YwiD8w40i8JG+OJ30bViONdGW9zJdSGCNFvC8ct1Kqp/z/BmrmM Je3Y3RpCIXgCLQ7i9tl6nqPeyRrDibz566iSpjcB16BhoFaojOA= X-Google-Smtp-Source: AGHT+IEVZEHMXFIEC1ZqlzvMK9FTABD6kpOJmZbZ+Y27AzRuCRvgkyC1vLyN7ZPDu7eN6RgBmQ1uWg== X-Received: by 2002:a17:906:7f0b:b0:a46:e8dc:5d51 with SMTP id d11-20020a1709067f0b00b00a46e8dc5d51mr4900400ejr.25.1711031980768; Thu, 21 Mar 2024 07:39:40 -0700 (PDT) Received: from U4.lan ([2a02:810b:f40:4600:b39:dab4:8e20:e918]) by smtp.gmail.com with ESMTPSA id e3-20020a170906248300b00a46abaeeb1csm6147923ejb.104.2024.03.21.07.39.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Mar 2024 07:39:40 -0700 (PDT) From: Alex Bee To: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Linus Walleij , Liam Girdwood , Mark Brown Cc: Chris Zhong , Zhang Qing , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Alex Bee Subject: [PATCH 2/5] mfd: rk8xx: Add RK816 support Date: Thu, 21 Mar 2024 15:39:10 +0100 Message-ID: <20240321143911.90210-5-knaerzche@gmail.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240321143911.90210-2-knaerzche@gmail.com> References: <20240321143911.90210-2-knaerzche@gmail.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This integrates RK816 support in the this existing rk8xx mfd driver. This version has unaligned interrupt registers, which requires to define a separate get_irq_reg callback for the regmap. Apart from that the integration is straightforward and the existing structures can be used as is. The initialisation sequence has been taken from vendor kernel. Signed-off-by: Alex Bee --- drivers/mfd/Kconfig | 4 +- drivers/mfd/rk8xx-core.c | 103 ++++++++++++++++++++++++++++ drivers/mfd/rk8xx-i2c.c | 45 +++++++++++- include/linux/mfd/rk808.h | 141 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 290 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 4b023ee229cf..2e7286cc98e4 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1225,7 +1225,7 @@ config MFD_RK8XX select MFD_CORE config MFD_RK8XX_I2C - tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip" + tristate "Rockchip RK805/RK808/RK809/RK816/RK817/RK818 Power Management Chip" depends on I2C && OF select MFD_CORE select REGMAP_I2C @@ -1233,7 +1233,7 @@ config MFD_RK8XX_I2C select MFD_RK8XX help If you say yes here you get support for the RK805, RK808, RK809, - RK817 and RK818 Power Management chips. + RK816, RK817 and RK818 Power Management chips. This driver provides common support for accessing the device through I2C interface. The device supports multiple sub-devices including interrupts, RTC, LDO & DCDC regulators, and onkey. diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c index e2261b68b844..a616f159d8d4 100644 --- a/drivers/mfd/rk8xx-core.c +++ b/drivers/mfd/rk8xx-core.c @@ -28,6 +28,10 @@ static const struct resource rtc_resources[] = { DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM), }; +static const struct resource rk816_rtc_resources[] = { + DEFINE_RES_IRQ(RK816_IRQ_RTC_ALARM), +}; + static const struct resource rk817_rtc_resources[] = { DEFINE_RES_IRQ(RK817_IRQ_RTC_ALARM), }; @@ -87,6 +91,21 @@ static const struct mfd_cell rk808s[] = { }, }; +static const struct mfd_cell rk816s[] = { + { .name = "rk805-pinctrl", }, + { .name = "rk808-clkout", }, + { .name = "rk808-regulator", }, + { .name = "rk805-pwrkey", + .num_resources = ARRAY_SIZE(rk805_key_resources), + .resources = rk805_key_resources, + }, + { + .name = "rk808-rtc", + .num_resources = ARRAY_SIZE(rk816_rtc_resources), + .resources = rk816_rtc_resources, + }, +}; + static const struct mfd_cell rk817s[] = { { .name = "rk808-clkout", }, { .name = "rk808-regulator", }, @@ -148,6 +167,17 @@ static const struct rk808_reg_data rk808_pre_init_reg[] = { VB_LO_SEL_3500MV }, }; +static const struct rk808_reg_data rk816_pre_init_reg[] = { + { RK818_BUCK1_CONFIG_REG, RK817_RAMP_RATE_MASK, + RK817_RAMP_RATE_12_5MV_PER_US }, + { RK818_BUCK2_CONFIG_REG, RK817_RAMP_RATE_MASK, + RK817_RAMP_RATE_12_5MV_PER_US }, + { RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA }, + { RK808_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP105C}, + { RK808_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK, + RK808_VBAT_LOW_3V0 | EN_VABT_LOW_SHUT_DOWN }, +}; + static const struct rk808_reg_data rk817_pre_init_reg[] = { {RK817_RTC_CTRL_REG, RTC_STOP, RTC_STOP}, /* Codec specific registers */ @@ -350,6 +380,59 @@ static const struct regmap_irq rk808_irqs[] = { }, }; +static const unsigned int rk816_irq_status_offsets[] = { + (RK816_INT_STS_REG1 - RK816_INT_STS_REG1), + (RK816_INT_STS_REG2 - RK816_INT_STS_REG1), + (RK816_INT_STS_REG3 - RK816_INT_STS_REG1), +}; + +static const unsigned int rk816_irq_mask_offsets[] = { + (RK816_INT_STS_MSK_REG1 - RK816_INT_STS_MSK_REG1), + (RK816_INT_STS_MSK_REG2 - RK816_INT_STS_MSK_REG1), + (RK816_INT_STS_MSK_REG3 - RK816_INT_STS_MSK_REG1), +}; + +static const unsigned int rk816_get_irq_reg(struct regmap_irq_chip_data *data, + unsigned int base, int index) +{ + unsigned int irq_reg = base; + + switch (base) { + case RK816_INT_STS_REG1: + irq_reg += rk816_irq_status_offsets[index]; + break; + case RK816_INT_STS_MSK_REG1: + irq_reg += rk816_irq_mask_offsets[index]; + break; + } + + return irq_reg; +}; + +static const struct regmap_irq rk816_irqs[] = { + /* INT_STS_REG1 IRQs */ + REGMAP_IRQ_REG(RK816_IRQ_PWRON_FALL, 0, RK816_INT_STS_PWRON_FALL), + REGMAP_IRQ_REG(RK816_IRQ_PWRON_RISE, 0, RK816_INT_STS_PWRON_RISE), + + /* INT_STS_REG2 IRQs */ + REGMAP_IRQ_REG(RK816_IRQ_VB_LOW, 1, RK816_INT_STS_VB_LOW), + REGMAP_IRQ_REG(RK816_IRQ_PWRON, 1, RK816_INT_STS_PWRON), + REGMAP_IRQ_REG(RK816_IRQ_PWRON_LP, 1, RK816_INT_STS_PWRON_LP), + REGMAP_IRQ_REG(RK816_IRQ_HOTDIE, 1, RK816_INT_STS_HOTDIE), + REGMAP_IRQ_REG(RK816_IRQ_RTC_ALARM, 1, RK816_INT_STS_RTC_ALARM), + REGMAP_IRQ_REG(RK816_IRQ_RTC_PERIOD, 1, RK816_INT_STS_RTC_PERIOD), + REGMAP_IRQ_REG(RK816_IRQ_USB_OV, 1, RK816_INT_STS_USB_OV), + + /* INT_STS3 IRQs */ + REGMAP_IRQ_REG(RK816_IRQ_PLUG_IN, 2, RK816_INT_STS_PLUG_IN), + REGMAP_IRQ_REG(RK816_IRQ_PLUG_OUT, 2, RK816_INT_STS_PLUG_OUT), + REGMAP_IRQ_REG(RK816_IRQ_CHG_OK, 2, RK816_INT_STS_CHG_OK), + REGMAP_IRQ_REG(RK816_IRQ_CHG_TE, 2, RK816_INT_STS_CHG_TE), + REGMAP_IRQ_REG(RK816_IRQ_CHG_TS, 2, RK816_INT_STS_CHG_TS), + REGMAP_IRQ_REG(RK816_IRQ_CHG_CVTLIM, 2, RK816_INT_STS_CHG_CVTLIM), + REGMAP_IRQ_REG(RK816_IRQ_DISCHG_ILIM, 2, RK816_INT_STS_DISCHG_ILIM), +}; + static const struct regmap_irq rk818_irqs[] = { /* INT_STS */ [RK818_IRQ_VOUT_LO] = { @@ -482,6 +565,18 @@ static const struct regmap_irq_chip rk808_irq_chip = { .init_ack_masked = true, }; +static const struct regmap_irq_chip rk816_irq_chip = { + .name = "rk816", + .irqs = rk816_irqs, + .num_irqs = ARRAY_SIZE(rk816_irqs), + .num_regs = 3, + .get_irq_reg = rk816_get_irq_reg, + .status_base = RK816_INT_STS_REG1, + .mask_base = RK816_INT_STS_MSK_REG1, + .ack_base = RK816_INT_STS_REG1, + .init_ack_masked = true, +}; + static struct regmap_irq_chip rk817_irq_chip = { .name = "rk817", .irqs = rk817_irqs, @@ -530,6 +625,7 @@ static int rk808_power_off(struct sys_off_data *data) reg = RK817_SYS_CFG(3); bit = DEV_OFF; break; + case RK816_ID: case RK818_ID: reg = RK818_DEVCTRL_REG; bit = DEV_OFF; @@ -637,6 +733,13 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap cells = rk808s; nr_cells = ARRAY_SIZE(rk808s); break; + case RK816_ID: + rk808->regmap_irq_chip = &rk816_irq_chip; + pre_init_reg = rk816_pre_init_reg; + nr_pre_init_regs = ARRAY_SIZE(rk816_pre_init_reg); + cells = rk816s; + nr_cells = ARRAY_SIZE(rk816s); + break; case RK818_ID: rk808->regmap_irq_chip = &rk818_irq_chip; pre_init_reg = rk818_pre_init_reg; diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c index 75b5cf09d5a0..69a6b297d723 100644 --- a/drivers/mfd/rk8xx-i2c.c +++ b/drivers/mfd/rk8xx-i2c.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Rockchip RK808/RK818 Core (I2C) driver + * Rockchip RK805/RK808/RK816/RK817/RK818 Core (I2C) driver * * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd * Copyright (C) 2016 PHYTEC Messtechnik GmbH @@ -49,6 +49,35 @@ static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) return false; } +static bool rk816_is_volatile_reg(struct device *dev, unsigned int reg) +{ + /* + * Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but + * we don't use that feature. It's better to cache. + */ + + switch (reg) { + case RK808_SECONDS_REG ... RK808_WEEKS_REG: + case RK808_RTC_STATUS_REG: + case RK808_VB_MON_REG: + case RK808_THERMAL_REG: + case RK816_DCDC_EN_REG1: + case RK816_DCDC_EN_REG2: + case RK816_INT_STS_REG1: + case RK816_INT_STS_REG2: + case RK816_INT_STS_REG3: + case RK808_DEVCTRL_REG: + case RK816_SUP_STS_REG: + case RK816_GGSTS_REG: + case RK816_ZERO_CUR_ADC_REGH: + case RK816_ZERO_CUR_ADC_REGL: + case RK816_GASCNT_REG(0) ... RK816_BAT_VOL_REGL: + return true; + } + + return false; +} + static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) { /* @@ -100,6 +129,14 @@ static const struct regmap_config rk808_regmap_config = { .volatile_reg = rk808_is_volatile_reg, }; +static const struct regmap_config rk816_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK816_DATA_REG(18), + .cache_type = REGCACHE_MAPLE, + .volatile_reg = rk816_is_volatile_reg, +}; + static const struct regmap_config rk817_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -123,6 +160,11 @@ static const struct rk8xx_i2c_platform_data rk809_data = { .variant = RK809_ID, }; +static const struct rk8xx_i2c_platform_data rk816_data = { + .regmap_cfg = &rk816_regmap_config, + .variant = RK816_ID, +}; + static const struct rk8xx_i2c_platform_data rk817_data = { .regmap_cfg = &rk817_regmap_config, .variant = RK817_ID, @@ -161,6 +203,7 @@ static const struct of_device_id rk8xx_i2c_of_match[] = { { .compatible = "rockchip,rk805", .data = &rk805_data }, { .compatible = "rockchip,rk808", .data = &rk808_data }, { .compatible = "rockchip,rk809", .data = &rk809_data }, + { .compatible = "rockchip,rk816", .data = &rk816_data }, { .compatible = "rockchip,rk817", .data = &rk817_data }, { .compatible = "rockchip,rk818", .data = &rk818_data }, { }, diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h index 78e167a92483..8b27fb2fafa8 100644 --- a/include/linux/mfd/rk808.h +++ b/include/linux/mfd/rk808.h @@ -113,6 +113,145 @@ enum rk808_reg { #define RK808_INT_STS_MSK_REG2 0x4f #define RK808_IO_POL_REG 0x50 +/* RK816 */ +enum rk816_reg { + RK816_ID_DCDC1, + RK816_ID_DCDC2, + RK816_ID_DCDC3, + RK816_ID_DCDC4, + RK816_ID_LDO1, + RK816_ID_LDO2, + RK816_ID_LDO3, + RK816_ID_LDO4, + RK816_ID_LDO5, + RK816_ID_LDO6, + RK816_ID_BOOST, + RK816_ID_OTG_SW, +}; + +enum rk816_irqs { + /* INT_STS_REG1 */ + RK816_IRQ_PWRON_FALL, + RK816_IRQ_PWRON_RISE, + + /* INT_STS_REG2 */ + RK816_IRQ_VB_LOW, + RK816_IRQ_PWRON, + RK816_IRQ_PWRON_LP, + RK816_IRQ_HOTDIE, + RK816_IRQ_RTC_ALARM, + RK816_IRQ_RTC_PERIOD, + RK816_IRQ_USB_OV, + + /* INT_STS_REG3 */ + RK816_IRQ_PLUG_IN, + RK816_IRQ_PLUG_OUT, + RK816_IRQ_CHG_OK, + RK816_IRQ_CHG_TE, + RK816_IRQ_CHG_TS, + RK816_IRQ_CHG_CVTLIM, + RK816_IRQ_DISCHG_ILIM, +}; + +/* power channel registers */ +#define RK816_DCDC_EN_REG1 0x23 + +#define RK816_DCDC_EN_REG2 0x24 +#define RK816_BOOST_EN BIT(1) +#define RK816_OTG_EN BIT(2) +#define RK816_BOOST_EN_MSK BIT(5) +#define RK816_OTG_EN_MSK BIT(6) +#define RK816_BUCK_DVS_CONFIRM BIT(7) + +#define RK816_LDO_EN_REG1 0x27 + +#define RK816_LDO_EN_REG2 0x28 + +/*interrupt registers and irq definitions*/ +#define RK816_INT_STS_REG1 0x49 +#define RK816_INT_STS_MSK_REG1 0x4a +#define RK816_INT_STS_PWRON_FALL BIT(5) +#define RK816_INT_STS_PWRON_RISE BIT(6) + +#define RK816_INT_STS_REG2 0x4c +#define RK816_INT_STS_MSK_REG2 0x4d +#define RK816_INT_STS_VB_LOW BIT(1) +#define RK816_INT_STS_PWRON BIT(2) +#define RK816_INT_STS_PWRON_LP BIT(3) +#define RK816_INT_STS_HOTDIE BIT(4) +#define RK816_INT_STS_RTC_ALARM BIT(5) +#define RK816_INT_STS_RTC_PERIOD BIT(6) +#define RK816_INT_STS_USB_OV BIT(7) + +#define RK816_INT_STS_REG3 0x4e +#define RK816_INT_STS_MSK_REG3 0x4f +#define RK816_INT_STS_PLUG_IN BIT(0) +#define RK816_INT_STS_PLUG_OUT BIT(1) +#define RK816_INT_STS_CHG_OK BIT(2) +#define RK816_INT_STS_CHG_TE BIT(3) +#define RK816_INT_STS_CHG_TS BIT(4) +#define RK816_INT_STS_CHG_CVTLIM BIT(6) +#define RK816_INT_STS_DISCHG_ILIM BIT(7) + +/* charger, boost and OTG registers */ +#define RK816_OTG_BUCK_LDO_CONFIG_REG 0x2a +#define RK816_CHRG_CONFIG_REG 0x2b +#define RK816_BOOST_ON_VESL_REG 0x54 +#define RK816_BOOST_SLP_VSEL_REG 0x55 +#define RK816_CHRG_BOOST_CONFIG_REG 0x9a +#define RK816_SUP_STS_REG 0xa0 +#define RK816_USB_CTRL_REG 0xa1 +#define RK816_CHRG_CTRL(x) (0xa3 + (x)) +#define RK816_BAT_CTRL_REG 0xa6 +#define RK816_BAT_HTS_TS_REG 0xa8 +#define RK816_BAT_LTS_TS_REG 0xa9 + +/* adc and fuel gauge registers */ +#define RK816_TS_CTRL_REG 0xac +#define RK816_ADC_CTRL_REG 0xad +#define RK816_GGCON_REG 0xb0 +#define RK816_GGSTS_REG 0xb1 +#define RK816_ZERO_CUR_ADC_REGH 0xb2 +#define RK816_ZERO_CUR_ADC_REGL 0xb3 +#define RK816_GASCNT_CAL_REG(x) (0xb7 - (x)) +#define RK816_GASCNT_REG(x) (0xbb - (x)) +#define RK816_BAT_CUR_AVG_REGH 0xbc +#define RK816_BAT_CUR_AVG_REGL 0xbd +#define RK816_TS_ADC_REGH 0xbe +#define RK816_TS_ADC_REGL 0xbf +#define RK816_USB_ADC_REGH 0xc0 +#define RK816_USB_ADC_REGL 0xc1 +#define RK816_BAT_OCV_REGH 0xc2 +#define RK816_BAT_OCV_REGL 0xc3 +#define RK816_BAT_VOL_REGH 0xc4 +#define RK816_BAT_VOL_REGL 0xc5 +#define RK816_RELAX_ENTRY_THRES_REGH 0xc6 +#define RK816_RELAX_ENTRY_THRES_REGL 0xc7 +#define RK816_RELAX_EXIT_THRES_REGH 0xc8 +#define RK816_RELAX_EXIT_THRES_REGL 0xc9 +#define RK816_RELAX_VOL1_REGH 0xca +#define RK816_RELAX_VOL1_REGL 0xcb +#define RK816_RELAX_VOL2_REGH 0xcc +#define RK816_RELAX_VOL2_REGL 0xcd +#define RK816_RELAX_CUR1_REGH 0xce +#define RK816_RELAX_CUR1_REGL 0xcf +#define RK816_RELAX_CUR2_REGH 0xd0 +#define RK816_RELAX_CUR2_REGL 0xd1 +#define RK816_CAL_OFFSET_REGH 0xd2 +#define RK816_CAL_OFFSET_REGL 0xd3 +#define RK816_NON_ACT_TIMER_CNT_REG 0xd4 +#define RK816_VCALIB0_REGH 0xd5 +#define RK816_VCALIB0_REGL 0xd6 +#define RK816_VCALIB1_REGH 0xd7 +#define RK816_VCALIB1_REGL 0xd8 +#define RK816_FCC_GASCNT_REG(x) (0xdc - (x)) +#define RK816_IOFFSET_REGH 0xdd +#define RK816_IOFFSET_REGL 0xde +#define RK816_SLEEP_CON_SAMP_CUR_REG 0xdf + +/* general purpose data registers 0xe0 ~ 0xf2 */ +#define RK816_DATA_REG(x) (0xe0 + (x)) + /* RK818 */ #define RK818_DCDC1 0 #define RK818_LDO1 4 @@ -791,6 +930,7 @@ enum rk806_dvs_mode { #define VOUT_LO_INT BIT(0) #define CLK32KOUT2_EN BIT(0) +#define TEMP105C 0x08 #define TEMP115C 0x0c #define TEMP_HOTDIE_MSK 0x0c #define SLP_SD_MSK (0x3 << 2) @@ -1191,6 +1331,7 @@ enum { RK806_ID = 0x8060, RK808_ID = 0x0000, RK809_ID = 0x8090, + RK816_ID = 0x8160, RK817_ID = 0x8170, RK818_ID = 0x8180, };