forked from Minki/linux
mfd: Add ROHM BD9571MWV-M MFD PMIC driver
Add the MFD part of the ROHM BD9571MWV-M PMIC driver and MAINTAINERS entry. The MFD part only specifies the regmap bits for the PMIC and binds the subdevs together. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Marek Vasut
Lee Jones
parent
ec58871fb9
commit
d3ea212720
11
MAINTAINERS
11
MAINTAINERS
@ -11280,6 +11280,17 @@ L: linux-serial@vger.kernel.org
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S: Odd Fixes
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F: drivers/tty/serial/rp2.*
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ROHM MULTIFUNCTION BD9571MWV-M PMIC DEVICE DRIVERS
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M: Marek Vasut <marek.vasut+renesas@gmail.com>
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L: linux-kernel@vger.kernel.org
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L: linux-renesas-soc@vger.kernel.org
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S: Supported
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F: drivers/mfd/bd9571mwv.c
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F: drivers/regulator/bd9571mwv-regulator.c
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F: drivers/gpio/gpio-bd9571mwv.c
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F: include/linux/mfd/bd9571mwv.h
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F: Documentation/devicetree/bindings/mfd/bd9571mwv.txt
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ROSE NETWORK LAYER
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M: Ralf Baechle <ralf@linux-mips.org>
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L: linux-hams@vger.kernel.org
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@ -133,6 +133,20 @@ config MFD_BCM590XX
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help
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Support for the BCM590xx PMUs from Broadcom
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config MFD_BD9571MWV
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tristate "ROHM BD9571MWV PMIC"
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select MFD_CORE
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select REGMAP_I2C
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select REGMAP_IRQ
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depends on I2C
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help
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Support for the ROHM BD9571MWV PMIC, which contains single
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voltage regulator, voltage sampling units, GPIO block and
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watchdog block.
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This driver can also be built as a module. If so, the module
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will be called bd9571mwv.
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config MFD_AC100
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tristate "X-Powers AC100"
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select MFD_CORE
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@ -10,6 +10,7 @@ obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
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obj-$(CONFIG_MFD_SM501) += sm501.o
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obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
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obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
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obj-$(CONFIG_MFD_BD9571MWV) += bd9571mwv.o
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cros_ec_core-objs := cros_ec.o
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cros_ec_core-$(CONFIG_ACPI) += cros_ec_acpi_gpe.o
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obj-$(CONFIG_MFD_CROS_EC) += cros_ec_core.o
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230
drivers/mfd/bd9571mwv.c
Normal file
230
drivers/mfd/bd9571mwv.c
Normal file
@ -0,0 +1,230 @@
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/*
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* ROHM BD9571MWV-M MFD driver
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*
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* Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether expressed or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License version 2 for more details.
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*
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* Based on the TPS65086 driver
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*/
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/mfd/bd9571mwv.h>
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static const struct mfd_cell bd9571mwv_cells[] = {
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{ .name = "bd9571mwv-regulator", },
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{ .name = "bd9571mwv-gpio", },
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};
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static const struct regmap_range bd9571mwv_readable_yes_ranges[] = {
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regmap_reg_range(BD9571MWV_VENDOR_CODE, BD9571MWV_PRODUCT_REVISION),
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regmap_reg_range(BD9571MWV_AVS_SET_MONI, BD9571MWV_AVS_DVFS_VID(3)),
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regmap_reg_range(BD9571MWV_VD18_VID, BD9571MWV_VD33_VID),
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regmap_reg_range(BD9571MWV_DVFS_VINIT, BD9571MWV_DVFS_VINIT),
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regmap_reg_range(BD9571MWV_DVFS_SETVMAX, BD9571MWV_DVFS_MONIVDAC),
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regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
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regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INTMASK),
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regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
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};
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static const struct regmap_access_table bd9571mwv_readable_table = {
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.yes_ranges = bd9571mwv_readable_yes_ranges,
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.n_yes_ranges = ARRAY_SIZE(bd9571mwv_readable_yes_ranges),
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};
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static const struct regmap_range bd9571mwv_writable_yes_ranges[] = {
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regmap_reg_range(BD9571MWV_AVS_VD09_VID(0), BD9571MWV_AVS_VD09_VID(3)),
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regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_SETVID),
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regmap_reg_range(BD9571MWV_GPIO_DIR, BD9571MWV_GPIO_OUT),
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regmap_reg_range(BD9571MWV_GPIO_INT_SET, BD9571MWV_GPIO_INTMASK),
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regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
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};
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static const struct regmap_access_table bd9571mwv_writable_table = {
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.yes_ranges = bd9571mwv_writable_yes_ranges,
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.n_yes_ranges = ARRAY_SIZE(bd9571mwv_writable_yes_ranges),
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};
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static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
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regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
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regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
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regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
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};
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static const struct regmap_access_table bd9571mwv_volatile_table = {
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.yes_ranges = bd9571mwv_volatile_yes_ranges,
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.n_yes_ranges = ARRAY_SIZE(bd9571mwv_volatile_yes_ranges),
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};
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static const struct regmap_config bd9571mwv_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.cache_type = REGCACHE_RBTREE,
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.rd_table = &bd9571mwv_readable_table,
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.wr_table = &bd9571mwv_writable_table,
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.volatile_table = &bd9571mwv_volatile_table,
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.max_register = 0xff,
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};
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static const struct regmap_irq bd9571mwv_irqs[] = {
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REGMAP_IRQ_REG(BD9571MWV_IRQ_MD1, 0,
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BD9571MWV_INT_INTREQ_MD1_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E1, 0,
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BD9571MWV_INT_INTREQ_MD2_E1_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E2, 0,
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BD9571MWV_INT_INTREQ_MD2_E2_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_PROT_ERR, 0,
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BD9571MWV_INT_INTREQ_PROT_ERR_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_GP, 0,
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BD9571MWV_INT_INTREQ_GP_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_128H_OF, 0,
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BD9571MWV_INT_INTREQ_128H_OF_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_WDT_OF, 0,
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BD9571MWV_INT_INTREQ_WDT_OF_INT),
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REGMAP_IRQ_REG(BD9571MWV_IRQ_BKUP_TRG, 0,
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BD9571MWV_INT_INTREQ_BKUP_TRG_INT),
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};
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static struct regmap_irq_chip bd9571mwv_irq_chip = {
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.name = "bd9571mwv",
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.status_base = BD9571MWV_INT_INTREQ,
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.mask_base = BD9571MWV_INT_INTMASK,
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.ack_base = BD9571MWV_INT_INTREQ,
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.init_ack_masked = true,
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.num_regs = 1,
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.irqs = bd9571mwv_irqs,
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.num_irqs = ARRAY_SIZE(bd9571mwv_irqs),
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};
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static int bd9571mwv_identify(struct bd9571mwv *bd)
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{
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struct device *dev = bd->dev;
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unsigned int value;
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int ret;
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ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value);
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if (ret) {
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dev_err(dev, "Failed to read vendor code register (ret=%i)\n",
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ret);
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return ret;
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}
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if (value != BD9571MWV_VENDOR_CODE_VAL) {
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dev_err(dev, "Invalid vendor code ID %02x (expected %02x)\n",
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value, BD9571MWV_VENDOR_CODE_VAL);
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return -EINVAL;
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}
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ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value);
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if (ret) {
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dev_err(dev, "Failed to read product code register (ret=%i)\n",
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ret);
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return ret;
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}
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if (value != BD9571MWV_PRODUCT_CODE_VAL) {
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dev_err(dev, "Invalid product code ID %02x (expected %02x)\n",
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value, BD9571MWV_PRODUCT_CODE_VAL);
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return -EINVAL;
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}
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ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_REVISION, &value);
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if (ret) {
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dev_err(dev, "Failed to read revision register (ret=%i)\n",
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ret);
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return ret;
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}
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dev_info(dev, "Device: BD9571MWV rev. %d\n", value & 0xff);
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return 0;
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}
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static int bd9571mwv_probe(struct i2c_client *client,
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const struct i2c_device_id *ids)
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{
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struct bd9571mwv *bd;
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int ret;
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bd = devm_kzalloc(&client->dev, sizeof(*bd), GFP_KERNEL);
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if (!bd)
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return -ENOMEM;
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i2c_set_clientdata(client, bd);
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bd->dev = &client->dev;
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bd->irq = client->irq;
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bd->regmap = devm_regmap_init_i2c(client, &bd9571mwv_regmap_config);
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if (IS_ERR(bd->regmap)) {
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dev_err(bd->dev, "Failed to initialize register map\n");
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return PTR_ERR(bd->regmap);
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}
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ret = bd9571mwv_identify(bd);
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if (ret)
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return ret;
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ret = regmap_add_irq_chip(bd->regmap, bd->irq, IRQF_ONESHOT, 0,
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&bd9571mwv_irq_chip, &bd->irq_data);
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if (ret) {
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dev_err(bd->dev, "Failed to register IRQ chip\n");
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return ret;
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}
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ret = mfd_add_devices(bd->dev, PLATFORM_DEVID_AUTO, bd9571mwv_cells,
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ARRAY_SIZE(bd9571mwv_cells), NULL, 0,
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regmap_irq_get_domain(bd->irq_data));
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if (ret) {
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regmap_del_irq_chip(bd->irq, bd->irq_data);
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return ret;
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}
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return 0;
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}
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static int bd9571mwv_remove(struct i2c_client *client)
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{
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struct bd9571mwv *bd = i2c_get_clientdata(client);
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regmap_del_irq_chip(bd->irq, bd->irq_data);
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return 0;
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}
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static const struct of_device_id bd9571mwv_of_match_table[] = {
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{ .compatible = "rohm,bd9571mwv", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, bd9571mwv_of_match_table);
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static const struct i2c_device_id bd9571mwv_id_table[] = {
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{ "bd9571mwv", 0 },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(i2c, bd9571mwv_id_table);
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static struct i2c_driver bd9571mwv_driver = {
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.driver = {
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.name = "bd9571mwv",
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.of_match_table = bd9571mwv_of_match_table,
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},
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.probe = bd9571mwv_probe,
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.remove = bd9571mwv_remove,
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.id_table = bd9571mwv_id_table,
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};
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module_i2c_driver(bd9571mwv_driver);
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MODULE_AUTHOR("Marek Vasut <marek.vasut+renesas@gmail.com>");
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MODULE_DESCRIPTION("BD9571MWV PMIC Driver");
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MODULE_LICENSE("GPL v2");
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115
include/linux/mfd/bd9571mwv.h
Normal file
115
include/linux/mfd/bd9571mwv.h
Normal file
@ -0,0 +1,115 @@
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/*
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* ROHM BD9571MWV-M driver
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*
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* Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether expressed or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License version 2 for more details.
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*
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* Based on the TPS65086 driver
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*/
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#ifndef __LINUX_MFD_BD9571MWV_H
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#define __LINUX_MFD_BD9571MWV_H
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#include <linux/device.h>
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#include <linux/regmap.h>
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/* List of registers for BD9571MWV */
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#define BD9571MWV_VENDOR_CODE 0x00
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#define BD9571MWV_VENDOR_CODE_VAL 0xdb
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#define BD9571MWV_PRODUCT_CODE 0x01
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#define BD9571MWV_PRODUCT_CODE_VAL 0x60
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#define BD9571MWV_PRODUCT_REVISION 0x02
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#define BD9571MWV_I2C_FUSA_MODE 0x10
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#define BD9571MWV_I2C_MD2_E1_BIT_1 0x11
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#define BD9571MWV_I2C_MD2_E1_BIT_2 0x12
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#define BD9571MWV_BKUP_MODE_CNT 0x20
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#define BD9571MWV_BKUP_MODE_STATUS 0x21
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#define BD9571MWV_BKUP_RECOVERY_CNT 0x22
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#define BD9571MWV_BKUP_CTRL_TIM_CNT 0x23
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#define BD9571MWV_WAITBKUP_WDT_CNT 0x24
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#define BD9571MWV_128H_TIM_CNT 0x26
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#define BD9571MWV_QLLM_CNT 0x27
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#define BD9571MWV_AVS_SET_MONI 0x31
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#define BD9571MWV_AVS_SET_MONI_MASK 0x3
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#define BD9571MWV_AVS_VD09_VID(n) (0x32 + (n))
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#define BD9571MWV_AVS_DVFS_VID(n) (0x36 + (n))
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#define BD9571MWV_VD18_VID 0x42
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#define BD9571MWV_VD25_VID 0x43
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#define BD9571MWV_VD33_VID 0x44
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#define BD9571MWV_DVFS_VINIT 0x50
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#define BD9571MWV_DVFS_SETVMAX 0x52
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#define BD9571MWV_DVFS_BOOSTVID 0x53
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#define BD9571MWV_DVFS_SETVID 0x54
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#define BD9571MWV_DVFS_MONIVDAC 0x55
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#define BD9571MWV_DVFS_PGD_CNT 0x56
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#define BD9571MWV_GPIO_DIR 0x60
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#define BD9571MWV_GPIO_OUT 0x61
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#define BD9571MWV_GPIO_IN 0x62
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#define BD9571MWV_GPIO_DEB 0x63
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#define BD9571MWV_GPIO_INT_SET 0x64
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#define BD9571MWV_GPIO_INT 0x65
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#define BD9571MWV_GPIO_INTMASK 0x66
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#define BD9571MWV_REG_KEEP(n) (0x70 + (n))
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#define BD9571MWV_PMIC_INTERNAL_STATUS 0x80
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#define BD9571MWV_PROT_ERROR_STATUS0 0x81
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#define BD9571MWV_PROT_ERROR_STATUS1 0x82
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#define BD9571MWV_PROT_ERROR_STATUS2 0x83
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#define BD9571MWV_PROT_ERROR_STATUS3 0x84
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#define BD9571MWV_PROT_ERROR_STATUS4 0x85
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#define BD9571MWV_INT_INTREQ 0x90
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#define BD9571MWV_INT_INTREQ_MD1_INT BIT(0)
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#define BD9571MWV_INT_INTREQ_MD2_E1_INT BIT(1)
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#define BD9571MWV_INT_INTREQ_MD2_E2_INT BIT(2)
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#define BD9571MWV_INT_INTREQ_PROT_ERR_INT BIT(3)
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#define BD9571MWV_INT_INTREQ_GP_INT BIT(4)
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#define BD9571MWV_INT_INTREQ_128H_OF_INT BIT(5)
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#define BD9571MWV_INT_INTREQ_WDT_OF_INT BIT(6)
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#define BD9571MWV_INT_INTREQ_BKUP_TRG_INT BIT(7)
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#define BD9571MWV_INT_INTMASK 0x91
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#define BD9571MWV_ACCESS_KEY 0xff
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/* Define the BD9571MWV IRQ numbers */
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enum bd9571mwv_irqs {
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BD9571MWV_IRQ_MD1,
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BD9571MWV_IRQ_MD2_E1,
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BD9571MWV_IRQ_MD2_E2,
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BD9571MWV_IRQ_PROT_ERR,
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BD9571MWV_IRQ_GP,
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BD9571MWV_IRQ_128H_OF,
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BD9571MWV_IRQ_WDT_OF,
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BD9571MWV_IRQ_BKUP_TRG,
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};
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/**
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* 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 */
|
||||
Loading…
Reference in New Issue
Block a user