2019-06-04 08:11:33 +00:00
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// SPDX-License-Identifier: GPL-2.0-only
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2017-01-06 00:44:39 +00:00
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/*
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* Motorola CPCAP PMIC core driver
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*
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* Copyright (C) 2016 Tony Lindgren <tony@atomide.com>
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*/
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/regmap.h>
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#include <linux/sysfs.h>
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2018-08-29 09:31:04 +00:00
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#include <linux/mfd/core.h>
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2017-01-06 00:44:39 +00:00
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#include <linux/mfd/motorola-cpcap.h>
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#include <linux/spi/spi.h>
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#define CPCAP_NR_IRQ_REG_BANKS 6
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#define CPCAP_NR_IRQ_CHIPS 3
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2017-03-29 12:18:20 +00:00
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#define CPCAP_REGISTER_SIZE 4
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#define CPCAP_REGISTER_BITS 16
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2017-01-06 00:44:39 +00:00
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struct cpcap_ddata {
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struct spi_device *spi;
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struct regmap_irq *irqs;
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struct regmap_irq_chip_data *irqdata[CPCAP_NR_IRQ_CHIPS];
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const struct regmap_config *regmap_conf;
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struct regmap *regmap;
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};
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2017-03-29 12:18:20 +00:00
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static int cpcap_sense_irq(struct regmap *regmap, int irq)
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{
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int regnum = irq / CPCAP_REGISTER_BITS;
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int mask = BIT(irq % CPCAP_REGISTER_BITS);
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int reg = CPCAP_REG_INTS1 + (regnum * CPCAP_REGISTER_SIZE);
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int err, val;
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if (reg < CPCAP_REG_INTS1 || reg > CPCAP_REG_INTS4)
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return -EINVAL;
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err = regmap_read(regmap, reg, &val);
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if (err)
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return err;
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return !!(val & mask);
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}
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int cpcap_sense_virq(struct regmap *regmap, int virq)
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{
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struct regmap_irq_chip_data *d = irq_get_chip_data(virq);
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int irq_base = regmap_irq_chip_get_base(d);
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return cpcap_sense_irq(regmap, virq - irq_base);
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}
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EXPORT_SYMBOL_GPL(cpcap_sense_virq);
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2017-01-06 00:44:39 +00:00
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static int cpcap_check_revision(struct cpcap_ddata *cpcap)
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{
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u16 vendor, rev;
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int ret;
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ret = cpcap_get_vendor(&cpcap->spi->dev, cpcap->regmap, &vendor);
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if (ret)
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return ret;
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ret = cpcap_get_revision(&cpcap->spi->dev, cpcap->regmap, &rev);
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if (ret)
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return ret;
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dev_info(&cpcap->spi->dev, "CPCAP vendor: %s rev: %i.%i (%x)\n",
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vendor == CPCAP_VENDOR_ST ? "ST" : "TI",
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CPCAP_REVISION_MAJOR(rev), CPCAP_REVISION_MINOR(rev),
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rev);
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if (rev < CPCAP_REVISION_2_1) {
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dev_info(&cpcap->spi->dev,
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"Please add old CPCAP revision support as needed\n");
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return -ENODEV;
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}
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return 0;
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}
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/*
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* First two irq chips are the two private macro interrupt chips, the third
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* irq chip is for register banks 1 - 4 and is available for drivers to use.
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*/
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static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
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{
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.name = "cpcap-m2",
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.num_regs = 1,
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.status_base = CPCAP_REG_MI1,
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.ack_base = CPCAP_REG_MI1,
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.mask_base = CPCAP_REG_MIM1,
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.use_ack = true,
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2020-11-11 17:06:13 +00:00
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.clear_ack = true,
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2017-01-06 00:44:39 +00:00
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},
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{
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.name = "cpcap-m2",
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.num_regs = 1,
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.status_base = CPCAP_REG_MI2,
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.ack_base = CPCAP_REG_MI2,
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.mask_base = CPCAP_REG_MIM2,
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.use_ack = true,
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2020-11-11 17:06:13 +00:00
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.clear_ack = true,
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2017-01-06 00:44:39 +00:00
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},
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{
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.name = "cpcap1-4",
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.num_regs = 4,
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.status_base = CPCAP_REG_INT1,
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.ack_base = CPCAP_REG_INT1,
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.mask_base = CPCAP_REG_INTM1,
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.use_ack = true,
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2020-11-11 17:06:13 +00:00
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.clear_ack = true,
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2017-01-06 00:44:39 +00:00
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},
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};
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static void cpcap_init_one_regmap_irq(struct cpcap_ddata *cpcap,
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struct regmap_irq *rirq,
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int irq_base, int irq)
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{
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unsigned int reg_offset;
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unsigned int bit, mask;
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reg_offset = irq - irq_base;
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reg_offset /= cpcap->regmap_conf->val_bits;
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reg_offset *= cpcap->regmap_conf->reg_stride;
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bit = irq % cpcap->regmap_conf->val_bits;
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mask = (1 << bit);
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rirq->reg_offset = reg_offset;
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rirq->mask = mask;
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}
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static int cpcap_init_irq_chip(struct cpcap_ddata *cpcap, int irq_chip,
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int irq_start, int nr_irqs)
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{
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struct regmap_irq_chip *chip = &cpcap_irq_chip[irq_chip];
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int i, ret;
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for (i = irq_start; i < irq_start + nr_irqs; i++) {
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struct regmap_irq *rirq = &cpcap->irqs[i];
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cpcap_init_one_regmap_irq(cpcap, rirq, irq_start, i);
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}
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chip->irqs = &cpcap->irqs[irq_start];
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chip->num_irqs = nr_irqs;
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chip->irq_drv_data = cpcap;
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ret = devm_regmap_add_irq_chip(&cpcap->spi->dev, cpcap->regmap,
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cpcap->spi->irq,
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2017-04-04 03:15:54 +00:00
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irq_get_trigger_type(cpcap->spi->irq) |
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2017-01-06 00:44:39 +00:00
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IRQF_SHARED, -1,
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chip, &cpcap->irqdata[irq_chip]);
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if (ret) {
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dev_err(&cpcap->spi->dev, "could not add irq chip %i: %i\n",
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irq_chip, ret);
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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 cpcap_init_irq(struct cpcap_ddata *cpcap)
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{
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int ret;
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cpcap->irqs = devm_kzalloc(&cpcap->spi->dev,
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treewide: devm_kzalloc() -> devm_kcalloc()
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
This patch replaces cases of:
devm_kzalloc(handle, a * b, gfp)
with:
devm_kcalloc(handle, a * b, gfp)
as well as handling cases of:
devm_kzalloc(handle, a * b * c, gfp)
with:
devm_kzalloc(handle, array3_size(a, b, c), gfp)
as it's slightly less ugly than:
devm_kcalloc(handle, array_size(a, b), c, gfp)
This does, however, attempt to ignore constant size factors like:
devm_kzalloc(handle, 4 * 1024, gfp)
though any constants defined via macros get caught up in the conversion.
Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.
Some manual whitespace fixes were needed in this patch, as Coccinelle
really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".
The Coccinelle script used for this was:
// Fix redundant parens around sizeof().
@@
expression HANDLE;
type TYPE;
expression THING, E;
@@
(
devm_kzalloc(HANDLE,
- (sizeof(TYPE)) * E
+ sizeof(TYPE) * E
, ...)
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devm_kzalloc(HANDLE,
- (sizeof(THING)) * E
+ sizeof(THING) * E
, ...)
)
// Drop single-byte sizes and redundant parens.
@@
expression HANDLE;
expression COUNT;
typedef u8;
typedef __u8;
@@
(
devm_kzalloc(HANDLE,
- sizeof(u8) * (COUNT)
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(__u8) * (COUNT)
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(char) * (COUNT)
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(unsigned char) * (COUNT)
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(u8) * COUNT
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(__u8) * COUNT
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(char) * COUNT
+ COUNT
, ...)
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devm_kzalloc(HANDLE,
- sizeof(unsigned char) * COUNT
+ COUNT
, ...)
)
// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
expression HANDLE;
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@
(
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * (COUNT_ID)
+ COUNT_ID, sizeof(TYPE)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * COUNT_ID
+ COUNT_ID, sizeof(TYPE)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * (COUNT_CONST)
+ COUNT_CONST, sizeof(TYPE)
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * COUNT_CONST
+ COUNT_CONST, sizeof(TYPE)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * (COUNT_ID)
+ COUNT_ID, sizeof(THING)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * COUNT_ID
+ COUNT_ID, sizeof(THING)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * (COUNT_CONST)
+ COUNT_CONST, sizeof(THING)
, ...)
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- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * COUNT_CONST
+ COUNT_CONST, sizeof(THING)
, ...)
)
// 2-factor product, only identifiers.
@@
expression HANDLE;
identifier SIZE, COUNT;
@@
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- SIZE * COUNT
+ COUNT, SIZE
, ...)
// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression HANDLE;
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@
(
devm_kzalloc(HANDLE,
- sizeof(TYPE) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(TYPE) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(TYPE) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(TYPE) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(TYPE))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(THING) * (COUNT) * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(THING) * (COUNT) * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(THING) * COUNT * (STRIDE)
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
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devm_kzalloc(HANDLE,
- sizeof(THING) * COUNT * STRIDE
+ array3_size(COUNT, STRIDE, sizeof(THING))
, ...)
)
// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression HANDLE;
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@
(
devm_kzalloc(HANDLE,
- sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(THING1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(THING1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(THING1), sizeof(THING2))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(TYPE1) * sizeof(THING2) * COUNT
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
|
devm_kzalloc(HANDLE,
- sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+ array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
, ...)
)
// 3-factor product, only identifiers, with redundant parens removed.
@@
expression HANDLE;
identifier STRIDE, SIZE, COUNT;
@@
(
devm_kzalloc(HANDLE,
- (COUNT) * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- COUNT * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- COUNT * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- (COUNT) * (STRIDE) * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- COUNT * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- (COUNT) * STRIDE * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- (COUNT) * (STRIDE) * (SIZE)
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
|
devm_kzalloc(HANDLE,
- COUNT * STRIDE * SIZE
+ array3_size(COUNT, STRIDE, SIZE)
, ...)
)
// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression HANDLE;
expression E1, E2, E3;
constant C1, C2, C3;
@@
(
devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
devm_kzalloc(HANDLE,
- (E1) * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
|
devm_kzalloc(HANDLE,
- (E1) * (E2) * E3
+ array3_size(E1, E2, E3)
, ...)
|
devm_kzalloc(HANDLE,
- (E1) * (E2) * (E3)
+ array3_size(E1, E2, E3)
, ...)
|
devm_kzalloc(HANDLE,
- E1 * E2 * E3
+ array3_size(E1, E2, E3)
, ...)
)
// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression HANDLE;
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@
(
devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
|
devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
|
devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
devm_kzalloc(HANDLE, C1 * C2, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * (E2)
+ E2, sizeof(TYPE)
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(TYPE) * E2
+ E2, sizeof(TYPE)
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * (E2)
+ E2, sizeof(THING)
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- sizeof(THING) * E2
+ E2, sizeof(THING)
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- (E1) * E2
+ E1, E2
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- (E1) * (E2)
+ E1, E2
, ...)
|
- devm_kzalloc
+ devm_kcalloc
(HANDLE,
- E1 * E2
+ E1, E2
, ...)
)
Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 21:07:58 +00:00
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array3_size(sizeof(*cpcap->irqs),
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CPCAP_NR_IRQ_REG_BANKS,
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cpcap->regmap_conf->val_bits),
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2017-01-06 00:44:39 +00:00
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GFP_KERNEL);
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if (!cpcap->irqs)
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return -ENOMEM;
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ret = cpcap_init_irq_chip(cpcap, 0, 0, 16);
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if (ret)
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return ret;
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ret = cpcap_init_irq_chip(cpcap, 1, 16, 16);
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if (ret)
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return ret;
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ret = cpcap_init_irq_chip(cpcap, 2, 32, 64);
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if (ret)
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return ret;
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enable_irq_wake(cpcap->spi->irq);
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return 0;
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}
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static const struct of_device_id cpcap_of_match[] = {
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{ .compatible = "motorola,cpcap", },
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{ .compatible = "st,6556002", },
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{},
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};
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MODULE_DEVICE_TABLE(of, cpcap_of_match);
|
|
|
|
|
2021-09-24 14:33:46 +00:00
|
|
|
static const struct spi_device_id cpcap_spi_ids[] = {
|
|
|
|
{ .name = "cpcap", },
|
|
|
|
{ .name = "6556002", },
|
|
|
|
{},
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(spi, cpcap_spi_ids);
|
|
|
|
|
2017-01-06 00:44:39 +00:00
|
|
|
static const struct regmap_config cpcap_regmap_config = {
|
|
|
|
.reg_bits = 16,
|
|
|
|
.reg_stride = 4,
|
|
|
|
.pad_bits = 0,
|
|
|
|
.val_bits = 16,
|
|
|
|
.write_flag_mask = 0x8000,
|
|
|
|
.max_register = CPCAP_REG_ST_TEST2,
|
|
|
|
.cache_type = REGCACHE_NONE,
|
|
|
|
.reg_format_endian = REGMAP_ENDIAN_LITTLE,
|
|
|
|
.val_format_endian = REGMAP_ENDIAN_LITTLE,
|
|
|
|
};
|
|
|
|
|
2020-07-06 18:39:34 +00:00
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
|
|
static int cpcap_suspend(struct device *dev)
|
|
|
|
{
|
|
|
|
struct spi_device *spi = to_spi_device(dev);
|
|
|
|
|
|
|
|
disable_irq(spi->irq);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int cpcap_resume(struct device *dev)
|
|
|
|
{
|
|
|
|
struct spi_device *spi = to_spi_device(dev);
|
|
|
|
|
|
|
|
enable_irq(spi->irq);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static SIMPLE_DEV_PM_OPS(cpcap_pm, cpcap_suspend, cpcap_resume);
|
|
|
|
|
2018-08-29 09:31:04 +00:00
|
|
|
static const struct mfd_cell cpcap_mfd_devices[] = {
|
|
|
|
{
|
|
|
|
.name = "cpcap_adc",
|
|
|
|
.of_compatible = "motorola,mapphone-cpcap-adc",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap_battery",
|
|
|
|
.of_compatible = "motorola,cpcap-battery",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-charger",
|
|
|
|
.of_compatible = "motorola,mapphone-cpcap-charger",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-regulator",
|
|
|
|
.of_compatible = "motorola,mapphone-cpcap-regulator",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-rtc",
|
|
|
|
.of_compatible = "motorola,cpcap-rtc",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-pwrbutton",
|
|
|
|
.of_compatible = "motorola,cpcap-pwrbutton",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-usb-phy",
|
|
|
|
.of_compatible = "motorola,mapphone-cpcap-usb-phy",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-led",
|
|
|
|
.id = 0,
|
|
|
|
.of_compatible = "motorola,cpcap-led-red",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-led",
|
|
|
|
.id = 1,
|
|
|
|
.of_compatible = "motorola,cpcap-led-green",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-led",
|
|
|
|
.id = 2,
|
|
|
|
.of_compatible = "motorola,cpcap-led-blue",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-led",
|
|
|
|
.id = 3,
|
|
|
|
.of_compatible = "motorola,cpcap-led-adl",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-led",
|
|
|
|
.id = 4,
|
|
|
|
.of_compatible = "motorola,cpcap-led-cp",
|
|
|
|
}, {
|
|
|
|
.name = "cpcap-codec",
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2017-01-06 00:44:39 +00:00
|
|
|
static int cpcap_probe(struct spi_device *spi)
|
|
|
|
{
|
|
|
|
const struct of_device_id *match;
|
|
|
|
struct cpcap_ddata *cpcap;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
match = of_match_device(of_match_ptr(cpcap_of_match), &spi->dev);
|
|
|
|
if (!match)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
cpcap = devm_kzalloc(&spi->dev, sizeof(*cpcap), GFP_KERNEL);
|
|
|
|
if (!cpcap)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
cpcap->spi = spi;
|
|
|
|
spi_set_drvdata(spi, cpcap);
|
|
|
|
|
|
|
|
spi->bits_per_word = 16;
|
|
|
|
spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
|
|
|
|
|
|
|
|
ret = spi_setup(spi);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
cpcap->regmap_conf = &cpcap_regmap_config;
|
|
|
|
cpcap->regmap = devm_regmap_init_spi(spi, &cpcap_regmap_config);
|
|
|
|
if (IS_ERR(cpcap->regmap)) {
|
|
|
|
ret = PTR_ERR(cpcap->regmap);
|
|
|
|
dev_err(&cpcap->spi->dev, "Failed to initialize regmap: %d\n",
|
|
|
|
ret);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = cpcap_check_revision(cpcap);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(&cpcap->spi->dev, "Failed to detect CPCAP: %i\n", ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = cpcap_init_irq(cpcap);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
2021-05-22 05:10:01 +00:00
|
|
|
/* Parent SPI controller uses DMA, CPCAP and child devices do not */
|
|
|
|
spi->dev.coherent_dma_mask = 0;
|
|
|
|
spi->dev.dma_mask = &spi->dev.coherent_dma_mask;
|
|
|
|
|
2018-08-29 09:31:04 +00:00
|
|
|
return devm_mfd_add_devices(&spi->dev, 0, cpcap_mfd_devices,
|
|
|
|
ARRAY_SIZE(cpcap_mfd_devices), NULL, 0, NULL);
|
2017-01-06 00:44:39 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct spi_driver cpcap_driver = {
|
|
|
|
.driver = {
|
|
|
|
.name = "cpcap-core",
|
|
|
|
.of_match_table = cpcap_of_match,
|
2020-07-06 18:39:34 +00:00
|
|
|
.pm = &cpcap_pm,
|
2017-01-06 00:44:39 +00:00
|
|
|
},
|
|
|
|
.probe = cpcap_probe,
|
2021-09-24 14:33:46 +00:00
|
|
|
.id_table = cpcap_spi_ids,
|
2017-01-06 00:44:39 +00:00
|
|
|
};
|
|
|
|
module_spi_driver(cpcap_driver);
|
|
|
|
|
|
|
|
MODULE_ALIAS("platform:cpcap");
|
|
|
|
MODULE_DESCRIPTION("CPCAP driver");
|
|
|
|
MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>");
|
|
|
|
MODULE_LICENSE("GPL v2");
|