Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE861C61DA4 for ; Fri, 27 Jan 2023 20:08:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233342AbjA0UIV (ORCPT ); Fri, 27 Jan 2023 15:08:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233369AbjA0UHt (ORCPT ); Fri, 27 Jan 2023 15:07:49 -0500 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70F4E8A6B; Fri, 27 Jan 2023 12:06:25 -0800 (PST) Received: (Authenticated sender: alexandre.belloni@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 931D8FF805; Fri, 27 Jan 2023 20:06:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1674849983; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=WRP+JrmaRRFZ3Q83wuVddFpg2GlHtoPDec8hQerXooU=; b=N29dUbF5hwd6sarxngs68X0iIs7Rhnwgf+56JowXMesCdVXT5oE8e8APql+myBWEZNAUdX qBK0vpVD351iMawLCdUeYJuvqwfFAPFD4QtOH8miXT13n+cwtQSAbj6R7rtOzlAlnJATKM 9eAPdwxOrM4PbKQBpxd4SM6Ifhs3eoX0TeShYIkvscoaxs/SXZXscV1Vg2Xc/b6RTAI/x1 s+l5UnsILc8Y3cOXVVLValqRMxqShHwQTbSIOh7oEmsQYOOp/YZv/AEWeiPrRfPWOC5ktL tpZGTbShGzuPglbWHU0yyyGR2M3nsobBRjsbI1pOKPV9IVbZHzzioE4C+iwK2Q== Date: Fri, 27 Jan 2023 21:06:22 +0100 From: Alexandre Belloni To: Sebastian Reichel Cc: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Lee Jones , Michael Turquette , Stephen Boyd , Linus Walleij , Mark Brown , Liam Girdwood , Alessandro Zummo , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com Subject: Re: [PATCHv6 05/11] mfd: rk808: split into core and i2c Message-ID: References: <20230127181244.160887-1-sebastian.reichel@collabora.com> <20230127181244.160887-6-sebastian.reichel@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230127181244.160887-6-sebastian.reichel@collabora.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 27/01/2023 19:12:38+0100, Sebastian Reichel wrote: > Split rk808 into a core and an i2c part in preperation for > SPI support. > > Signed-off-by: Sebastian Reichel For the RTC part: Acked-by: Alexandre Belloni > --- > drivers/clk/Kconfig | 2 +- > drivers/input/misc/Kconfig | 2 +- > drivers/mfd/Kconfig | 7 +- > drivers/mfd/Makefile | 3 +- > drivers/mfd/{rk808.c => rk8xx-core.c} | 209 +++++--------------------- > drivers/mfd/rk8xx-i2c.c | 200 ++++++++++++++++++++++++ > drivers/pinctrl/Kconfig | 2 +- > drivers/power/supply/Kconfig | 2 +- > drivers/regulator/Kconfig | 2 +- > drivers/rtc/Kconfig | 2 +- > include/linux/mfd/rk808.h | 6 + > sound/soc/codecs/Kconfig | 2 +- > 12 files changed, 256 insertions(+), 183 deletions(-) > rename drivers/mfd/{rk808.c => rk8xx-core.c} (76%) > create mode 100644 drivers/mfd/rk8xx-i2c.c > > diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig > index d79905f3e174..8448d616b9aa 100644 > --- a/drivers/clk/Kconfig > +++ b/drivers/clk/Kconfig > @@ -83,7 +83,7 @@ config COMMON_CLK_MAX9485 > > config COMMON_CLK_RK808 > tristate "Clock driver for RK805/RK808/RK809/RK817/RK818" > - depends on MFD_RK808 > + depends on MFD_RK8XX > help > This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock. > These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each. > diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig > index 5c2d0c06d2a5..6a6978fc68fa 100644 > --- a/drivers/input/misc/Kconfig > +++ b/drivers/input/misc/Kconfig > @@ -598,7 +598,7 @@ config INPUT_PWM_VIBRA > > config INPUT_RK805_PWRKEY > tristate "Rockchip RK805 PMIC power key support" > - depends on MFD_RK808 > + depends on MFD_RK8XX > help > Select this option to enable power key driver for RK805. > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 30db49f31866..692e38283bda 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -1204,12 +1204,17 @@ config MFD_RC5T583 > Additional drivers must be enabled in order to use the > different functionality of the device. > > -config MFD_RK808 > +config MFD_RK8XX > + bool > + select MFD_CORE > + > +config MFD_RK8XX_I2C > tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip" > depends on I2C && OF > select MFD_CORE > select REGMAP_I2C > select REGMAP_IRQ > + select MFD_RK8XX > help > If you say yes here you get support for the RK805, RK808, RK809, > RK817 and RK818 Power Management chips. > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 457471478a93..f65ef1bd0810 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -220,7 +220,8 @@ obj-$(CONFIG_MFD_PALMAS) += palmas.o > obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o > obj-$(CONFIG_MFD_NTXEC) += ntxec.o > obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o > -obj-$(CONFIG_MFD_RK808) += rk808.o > +obj-$(CONFIG_MFD_RK8XX) += rk8xx-core.o > +obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o > obj-$(CONFIG_MFD_RN5T618) += rn5t618.o > obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o > obj-$(CONFIG_MFD_SYSCON) += syscon.o > diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk8xx-core.c > similarity index 76% > rename from drivers/mfd/rk808.c > rename to drivers/mfd/rk8xx-core.c > index 695a3fe6b9e0..c52f5fa1a4da 100644 > --- a/drivers/mfd/rk808.c > +++ b/drivers/mfd/rk8xx-core.c > @@ -1,18 +1,15 @@ > // SPDX-License-Identifier: GPL-2.0-only > /* > - * MFD core driver for Rockchip RK808/RK818 > + * MFD core driver for Rockchip RK8XX > * > * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd > + * Copyright (C) 2016 PHYTEC Messtechnik GmbH > * > * Author: Chris Zhong > * Author: Zhang Qing > - * > - * Copyright (C) 2016 PHYTEC Messtechnik GmbH > - * > * Author: Wadim Egorov > */ > > -#include > #include > #include > #include > @@ -27,92 +24,6 @@ struct rk808_reg_data { > int value; > }; > > -static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) > -{ > - /* > - * Notes: > - * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but > - * we don't use that feature. It's better to cache. > - * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since > - * bits are cleared in case when we shutoff anyway, but better safe. > - */ > - > - switch (reg) { > - case RK808_SECONDS_REG ... RK808_WEEKS_REG: > - case RK808_RTC_STATUS_REG: > - case RK808_VB_MON_REG: > - case RK808_THERMAL_REG: > - case RK808_DCDC_UV_STS_REG: > - case RK808_LDO_UV_STS_REG: > - case RK808_DCDC_PG_REG: > - case RK808_LDO_PG_REG: > - case RK808_DEVCTRL_REG: > - case RK808_INT_STS_REG1: > - case RK808_INT_STS_REG2: > - return true; > - } > - > - return false; > -} > - > -static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) > -{ > - /* > - * Notes: > - * - 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 RK817_SECONDS_REG ... RK817_WEEKS_REG: > - case RK817_RTC_STATUS_REG: > - case RK817_CODEC_DTOP_LPT_SRST: > - case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0: > - case RK817_PMIC_CHRG_STS: > - case RK817_PMIC_CHRG_OUT: > - case RK817_PMIC_CHRG_IN: > - case RK817_INT_STS_REG0: > - case RK817_INT_STS_REG1: > - case RK817_INT_STS_REG2: > - case RK817_SYS_STS: > - return true; > - } > - > - return false; > -} > - > -static const struct regmap_config rk818_regmap_config = { > - .reg_bits = 8, > - .val_bits = 8, > - .max_register = RK818_USB_CTRL_REG, > - .cache_type = REGCACHE_RBTREE, > - .volatile_reg = rk808_is_volatile_reg, > -}; > - > -static const struct regmap_config rk805_regmap_config = { > - .reg_bits = 8, > - .val_bits = 8, > - .max_register = RK805_OFF_SOURCE_REG, > - .cache_type = REGCACHE_RBTREE, > - .volatile_reg = rk808_is_volatile_reg, > -}; > - > -static const struct regmap_config rk808_regmap_config = { > - .reg_bits = 8, > - .val_bits = 8, > - .max_register = RK808_IO_POL_REG, > - .cache_type = REGCACHE_RBTREE, > - .volatile_reg = rk808_is_volatile_reg, > -}; > - > -static const struct regmap_config rk817_regmap_config = { > - .reg_bits = 8, > - .val_bits = 8, > - .max_register = RK817_GPIO_INT_CFG, > - .cache_type = REGCACHE_NONE, > - .volatile_reg = rk817_is_volatile_reg, > -}; > - > static const struct resource rtc_resources[] = { > DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM), > }; > @@ -604,9 +515,9 @@ static int rk808_restart(struct sys_off_data *data) > return NOTIFY_DONE; > } > > -static void rk8xx_shutdown(struct i2c_client *client) > +void rk8xx_shutdown(struct device *dev) > { > - struct rk808 *rk808 = i2c_get_clientdata(client); > + struct rk808 *rk808 = dev_get_drvdata(dev); > int ret; > > switch (rk808->variant) { > @@ -627,61 +538,31 @@ static void rk8xx_shutdown(struct i2c_client *client) > return; > } > if (ret) > - dev_warn(&client->dev, > + dev_warn(dev, > "Cannot switch to power down function\n"); > } > +EXPORT_SYMBOL_GPL(rk8xx_shutdown); > > -static const struct of_device_id rk808_of_match[] = { > - { .compatible = "rockchip,rk805" }, > - { .compatible = "rockchip,rk808" }, > - { .compatible = "rockchip,rk809" }, > - { .compatible = "rockchip,rk817" }, > - { .compatible = "rockchip,rk818" }, > - { }, > -}; > -MODULE_DEVICE_TABLE(of, rk808_of_match); > - > -static int rk808_probe(struct i2c_client *client) > +int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap) > { > - struct device_node *np = client->dev.of_node; > struct rk808 *rk808; > const struct rk808_reg_data *pre_init_reg; > const struct mfd_cell *cells; > int nr_pre_init_regs; > int nr_cells; > - int msb, lsb; > - unsigned char pmic_id_msb, pmic_id_lsb; > int ret; > int i; > > - rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL); > + rk808 = devm_kzalloc(dev, sizeof(*rk808), GFP_KERNEL); > if (!rk808) > return -ENOMEM; > - > - if (of_device_is_compatible(np, "rockchip,rk817") || > - of_device_is_compatible(np, "rockchip,rk809")) { > - pmic_id_msb = RK817_ID_MSB; > - pmic_id_lsb = RK817_ID_LSB; > - } else { > - pmic_id_msb = RK808_ID_MSB; > - pmic_id_lsb = RK808_ID_LSB; > - } > - > - /* Read chip variant */ > - msb = i2c_smbus_read_byte_data(client, pmic_id_msb); > - if (msb < 0) > - return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n"); > - > - lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb); > - if (lsb < 0) > - return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n"); > - > - rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK; > - dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant); > + rk808->dev = dev; > + rk808->variant = variant; > + rk808->regmap = regmap; > + dev_set_drvdata(dev, rk808); > > switch (rk808->variant) { > case RK805_ID: > - rk808->regmap_cfg = &rk805_regmap_config; > rk808->regmap_irq_chip = &rk805_irq_chip; > pre_init_reg = rk805_pre_init_reg; > nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg); > @@ -689,7 +570,6 @@ static int rk808_probe(struct i2c_client *client) > nr_cells = ARRAY_SIZE(rk805s); > break; > case RK808_ID: > - rk808->regmap_cfg = &rk808_regmap_config; > rk808->regmap_irq_chip = &rk808_irq_chip; > pre_init_reg = rk808_pre_init_reg; > nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg); > @@ -697,7 +577,6 @@ static int rk808_probe(struct i2c_client *client) > nr_cells = ARRAY_SIZE(rk808s); > break; > case RK818_ID: > - rk808->regmap_cfg = &rk818_regmap_config; > rk808->regmap_irq_chip = &rk818_irq_chip; > pre_init_reg = rk818_pre_init_reg; > nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg); > @@ -706,7 +585,6 @@ static int rk808_probe(struct i2c_client *client) > break; > case RK809_ID: > case RK817_ID: > - rk808->regmap_cfg = &rk817_regmap_config; > rk808->regmap_irq_chip = &rk817_irq_chip; > pre_init_reg = rk817_pre_init_reg; > nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg); > @@ -714,27 +592,20 @@ static int rk808_probe(struct i2c_client *client) > nr_cells = ARRAY_SIZE(rk817s); > break; > default: > - dev_err(&client->dev, "Unsupported RK8XX ID %lu\n", > - rk808->variant); > + dev_err(dev, "Unsupported RK8XX ID %lu\n", rk808->variant); > return -EINVAL; > } > > - rk808->dev = &client->dev; > - i2c_set_clientdata(client, rk808); > - > - rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg); > - if (IS_ERR(rk808->regmap)) > - return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap), > - "regmap initialization failed\n"); > + dev_info(dev, "chip id: 0x%x\n", (unsigned int)rk808->variant); > > - if (!client->irq) > - return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n"); > + if (!irq) > + return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n"); > > - ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq, > + ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq, > IRQF_ONESHOT, -1, > rk808->regmap_irq_chip, &rk808->irq_data); > if (ret) > - return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n"); > + return dev_err_probe(dev, ret, "Failed to add irq_chip\n"); > > for (i = 0; i < nr_pre_init_regs; i++) { > ret = regmap_update_bits(rk808->regmap, > @@ -742,45 +613,46 @@ static int rk808_probe(struct i2c_client *client) > pre_init_reg[i].mask, > pre_init_reg[i].value); > if (ret) > - return dev_err_probe(&client->dev, ret, "0x%x write err\n", > + return dev_err_probe(dev, ret, "0x%x write err\n", > pre_init_reg[i].addr); > } > > - ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE, > + ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, > cells, nr_cells, NULL, 0, > regmap_irq_get_domain(rk808->irq_data)); > if (ret) > - return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n"); > + return dev_err_probe(dev, ret, "failed to add MFD devices\n"); > > - if (of_property_read_bool(np, "rockchip,system-power-controller")) { > - ret = devm_register_sys_off_handler(&client->dev, > + if (device_property_read_bool(dev, "rockchip,system-power-controller")) { > + ret = devm_register_sys_off_handler(dev, > SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH, > &rk808_power_off, rk808); > if (ret) > - return dev_err_probe(&client->dev, ret, > + return dev_err_probe(dev, ret, > "failed to register poweroff handler\n"); > > switch (rk808->variant) { > case RK809_ID: > case RK817_ID: > - ret = devm_register_sys_off_handler(&client->dev, > + ret = devm_register_sys_off_handler(dev, > SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH, > &rk808_restart, rk808); > if (ret) > - dev_warn(&client->dev, "failed to register rst handler, %d\n", ret); > + dev_warn(dev, "failed to register rst handler, %d\n", ret); > break; > default: > - dev_dbg(&client->dev, "pmic controlled board reset not supported\n"); > + dev_dbg(dev, "pmic controlled board reset not supported\n"); > break; > } > } > > return 0; > } > +EXPORT_SYMBOL_GPL(rk8xx_probe); > > -static int __maybe_unused rk8xx_suspend(struct device *dev) > +int rk8xx_suspend(struct device *dev) > { > - struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); > + struct rk808 *rk808 = dev_get_drvdata(dev); > int ret = 0; > > switch (rk808->variant) { > @@ -803,10 +675,11 @@ static int __maybe_unused rk8xx_suspend(struct device *dev) > > return ret; > } > +EXPORT_SYMBOL_GPL(rk8xx_suspend); > > -static int __maybe_unused rk8xx_resume(struct device *dev) > +int rk8xx_resume(struct device *dev) > { > - struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); > + struct rk808 *rk808 = dev_get_drvdata(dev); > int ret = 0; > > switch (rk808->variant) { > @@ -823,22 +696,10 @@ static int __maybe_unused rk8xx_resume(struct device *dev) > > return ret; > } > -static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume); > - > -static struct i2c_driver rk808_i2c_driver = { > - .driver = { > - .name = "rk808", > - .of_match_table = rk808_of_match, > - .pm = &rk8xx_pm_ops, > - }, > - .probe_new = rk808_probe, > - .shutdown = rk8xx_shutdown, > -}; > - > -module_i2c_driver(rk808_i2c_driver); > +EXPORT_SYMBOL_GPL(rk8xx_resume); > > MODULE_LICENSE("GPL"); > MODULE_AUTHOR("Chris Zhong "); > MODULE_AUTHOR("Zhang Qing "); > MODULE_AUTHOR("Wadim Egorov "); > -MODULE_DESCRIPTION("RK808/RK818 PMIC driver"); > +MODULE_DESCRIPTION("RK8xx PMIC core"); > diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c > new file mode 100644 > index 000000000000..6d121b589fec > --- /dev/null > +++ b/drivers/mfd/rk8xx-i2c.c > @@ -0,0 +1,200 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Rockchip RK808/RK818 Core (I2C) driver > + * > + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd > + * Copyright (C) 2016 PHYTEC Messtechnik GmbH > + * > + * Author: Chris Zhong > + * Author: Zhang Qing > + * Author: Wadim Egorov > + */ > + > +#include > +#include > +#include > +#include > +#include > + > +static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) > +{ > + /* > + * Notes: > + * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but > + * we don't use that feature. It's better to cache. > + * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since > + * bits are cleared in case when we shutoff anyway, but better safe. > + */ > + > + switch (reg) { > + case RK808_SECONDS_REG ... RK808_WEEKS_REG: > + case RK808_RTC_STATUS_REG: > + case RK808_VB_MON_REG: > + case RK808_THERMAL_REG: > + case RK808_DCDC_UV_STS_REG: > + case RK808_LDO_UV_STS_REG: > + case RK808_DCDC_PG_REG: > + case RK808_LDO_PG_REG: > + case RK808_DEVCTRL_REG: > + case RK808_INT_STS_REG1: > + case RK808_INT_STS_REG2: > + return true; > + } > + > + return false; > +} > + > +static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) > +{ > + /* > + * Notes: > + * - 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 RK817_SECONDS_REG ... RK817_WEEKS_REG: > + case RK817_RTC_STATUS_REG: > + case RK817_CODEC_DTOP_LPT_SRST: > + case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0: > + case RK817_PMIC_CHRG_STS: > + case RK817_PMIC_CHRG_OUT: > + case RK817_PMIC_CHRG_IN: > + case RK817_INT_STS_REG0: > + case RK817_INT_STS_REG1: > + case RK817_INT_STS_REG2: > + case RK817_SYS_STS: > + return true; > + } > + > + return false; > +} > + > + > +static const struct regmap_config rk818_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = RK818_USB_CTRL_REG, > + .cache_type = REGCACHE_RBTREE, > + .volatile_reg = rk808_is_volatile_reg, > +}; > + > +static const struct regmap_config rk805_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = RK805_OFF_SOURCE_REG, > + .cache_type = REGCACHE_RBTREE, > + .volatile_reg = rk808_is_volatile_reg, > +}; > + > +static const struct regmap_config rk808_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = RK808_IO_POL_REG, > + .cache_type = REGCACHE_RBTREE, > + .volatile_reg = rk808_is_volatile_reg, > +}; > + > +static const struct regmap_config rk817_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = RK817_GPIO_INT_CFG, > + .cache_type = REGCACHE_NONE, > + .volatile_reg = rk817_is_volatile_reg, > +}; > + > +static int rk8xx_i2c_get_variant(struct i2c_client *client) > +{ > + u8 pmic_id_msb, pmic_id_lsb; > + int msb, lsb; > + > + if (of_device_is_compatible(client->dev.of_node, "rockchip,rk817") || > + of_device_is_compatible(client->dev.of_node, "rockchip,rk809")) { > + pmic_id_msb = RK817_ID_MSB; > + pmic_id_lsb = RK817_ID_LSB; > + } else { > + pmic_id_msb = RK808_ID_MSB; > + pmic_id_lsb = RK808_ID_LSB; > + } > + > + /* Read chip variant */ > + msb = i2c_smbus_read_byte_data(client, pmic_id_msb); > + if (msb < 0) > + return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n"); > + > + lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb); > + if (lsb < 0) > + return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n"); > + > + return ((msb << 8) | lsb) & RK8XX_ID_MSK; > +} > + > +static int rk8xx_i2c_probe(struct i2c_client *client) > +{ > + const struct regmap_config *regmap_cfg; > + struct regmap *regmap; > + int variant; > + > + variant = rk8xx_i2c_get_variant(client); > + if (variant < 0) > + return variant; > + > + switch (variant) { > + case RK805_ID: > + regmap_cfg = &rk805_regmap_config; > + break; > + case RK808_ID: > + regmap_cfg = &rk808_regmap_config; > + break; > + case RK818_ID: > + regmap_cfg = &rk818_regmap_config; > + break; > + case RK809_ID: > + case RK817_ID: > + regmap_cfg = &rk817_regmap_config; > + break; > + default: > + return dev_err_probe(&client->dev, -EINVAL, "Unsupported RK8XX ID %x\n", variant); > + } > + > + regmap = devm_regmap_init_i2c(client, regmap_cfg); > + if (IS_ERR(regmap)) > + return dev_err_probe(&client->dev, PTR_ERR(regmap), > + "regmap initialization failed\n"); > + > + return rk8xx_probe(&client->dev, variant, client->irq, regmap); > +} > + > +static void rk8xx_i2c_shutdown(struct i2c_client *client) > +{ > + rk8xx_shutdown(&client->dev); > +} > + > +static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_suspend, rk8xx_resume); > + > +static const struct of_device_id rk8xx_i2c_of_match[] = { > + { .compatible = "rockchip,rk805" }, > + { .compatible = "rockchip,rk808" }, > + { .compatible = "rockchip,rk809" }, > + { .compatible = "rockchip,rk817" }, > + { .compatible = "rockchip,rk818" }, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, rk8xx_i2c_of_match); > + > +static struct i2c_driver rk8xx_i2c_driver = { > + .driver = { > + .name = "rk8xx-i2c", > + .of_match_table = rk8xx_i2c_of_match, > + .pm = &rk8xx_i2c_pm_ops, > + }, > + .probe_new = rk8xx_i2c_probe, > + .shutdown = rk8xx_i2c_shutdown, > +}; > +module_i2c_driver(rk8xx_i2c_driver); > + > +MODULE_LICENSE("GPL"); > +MODULE_AUTHOR("Chris Zhong "); > +MODULE_AUTHOR("Zhang Qing "); > +MODULE_AUTHOR("Wadim Egorov "); > +MODULE_DESCRIPTION("RK8xx I2C PMIC driver"); > diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig > index 7d5f5458c72e..b3cbce49a087 100644 > --- a/drivers/pinctrl/Kconfig > +++ b/drivers/pinctrl/Kconfig > @@ -407,7 +407,7 @@ config PINCTRL_PISTACHIO > > config PINCTRL_RK805 > tristate "Pinctrl and GPIO driver for RK805 PMIC" > - depends on MFD_RK808 > + depends on MFD_RK8XX > select GPIOLIB > select PINMUX > select GENERIC_PINCONF > diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig > index 0bbfe6a7ce4d..306a9b1f897e 100644 > --- a/drivers/power/supply/Kconfig > +++ b/drivers/power/supply/Kconfig > @@ -725,7 +725,7 @@ config CHARGER_BQ256XX > > config CHARGER_RK817 > tristate "Rockchip RK817 PMIC Battery Charger" > - depends on MFD_RK808 > + depends on MFD_RK8XX > help > Say Y to include support for Rockchip RK817 Battery Charger. > > diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig > index 820c9a0788e5..90e79ec5b021 100644 > --- a/drivers/regulator/Kconfig > +++ b/drivers/regulator/Kconfig > @@ -1048,7 +1048,7 @@ config REGULATOR_RC5T583 > > config REGULATOR_RK808 > tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power regulators" > - depends on MFD_RK808 > + depends on MFD_RK8XX > help > Select this option to enable the power regulator of ROCKCHIP > PMIC RK805,RK809&RK817,RK808 and RK818. > diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig > index 677d2601d305..313c14c4cb2d 100644 > --- a/drivers/rtc/Kconfig > +++ b/drivers/rtc/Kconfig > @@ -395,7 +395,7 @@ config RTC_DRV_NCT3018Y > > config RTC_DRV_RK808 > tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC" > - depends on MFD_RK808 > + depends on MFD_RK8XX > help > If you say yes here you will get support for the > RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC. > diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h > index a89ddd9ba68e..4183427a80fe 100644 > --- a/include/linux/mfd/rk808.h > +++ b/include/linux/mfd/rk808.h > @@ -794,4 +794,10 @@ struct rk808 { > const struct regmap_config *regmap_cfg; > const struct regmap_irq_chip *regmap_irq_chip; > }; > + > +void rk8xx_shutdown(struct device *dev); > +int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap); > +int rk8xx_suspend(struct device *dev); > +int rk8xx_resume(struct device *dev); > + > #endif /* __LINUX_REGULATOR_RK808_H */ > diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig > index 0f9d71490075..7df9bb2c458f 100644 > --- a/sound/soc/codecs/Kconfig > +++ b/sound/soc/codecs/Kconfig > @@ -1211,7 +1211,7 @@ config SND_SOC_RK3328 > > config SND_SOC_RK817 > tristate "Rockchip RK817 audio CODEC" > - depends on MFD_RK808 || COMPILE_TEST > + depends on MFD_RK8XX || COMPILE_TEST > > config SND_SOC_RL6231 > tristate > -- > 2.39.0 > -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com