mfd: twl6040: Convert to use regmap_irq
With regmap_irq it is possible to remove the twl6040-irq.c file and simplify the code. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>hifive-unleashed-5.1
Peter Ujfalusi
Samuel Ortiz
parent
1ac96265a6
commit
ab7edb149c
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@ -321,10 +321,10 @@ config MFD_TWL4030_AUDIO
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config TWL6040_CORE
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bool "Support for TWL6040 audio codec"
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depends on I2C=y && GENERIC_HARDIRQS
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depends on I2C=y
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select MFD_CORE
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select REGMAP_I2C
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select IRQ_DOMAIN
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select REGMAP_IRQ
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default n
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help
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Say yes here if you want support for Texas Instruments TWL6040 audio
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@ -67,7 +67,7 @@ obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o
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obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o
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obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
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obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o
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obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o twl6040-irq.o
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obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o
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obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o
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obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o
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@ -499,6 +499,25 @@ static struct regmap_config twl6040_regmap_config = {
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.readable_reg = twl6040_readable_reg,
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};
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static const struct regmap_irq twl6040_irqs[] = {
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{ .reg_offset = 0, .mask = TWL6040_THINT, },
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{ .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, },
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{ .reg_offset = 0, .mask = TWL6040_HOOKINT, },
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{ .reg_offset = 0, .mask = TWL6040_HFINT, },
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{ .reg_offset = 0, .mask = TWL6040_VIBINT, },
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{ .reg_offset = 0, .mask = TWL6040_READYINT, },
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};
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static struct regmap_irq_chip twl6040_irq_chip = {
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.name = "twl6040",
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.irqs = twl6040_irqs,
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.num_irqs = ARRAY_SIZE(twl6040_irqs),
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.num_regs = 1,
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.status_base = TWL6040_REG_INTID,
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.mask_base = TWL6040_REG_INTMR,
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};
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static int __devinit twl6040_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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@ -574,21 +593,27 @@ static int __devinit twl6040_probe(struct i2c_client *client,
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goto gpio_err;
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}
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/* codec interrupt */
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ret = twl6040_irq_init(twl6040);
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if (ret)
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ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq,
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IRQF_ONESHOT, 0, &twl6040_irq_chip,
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&twl6040->irq_data);
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if (ret < 0)
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goto irq_init_err;
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ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY,
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NULL, twl6040_readyint_handler, IRQF_ONESHOT,
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twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data,
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TWL6040_IRQ_READY);
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twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data,
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TWL6040_IRQ_TH);
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ret = request_threaded_irq(twl6040->irq_ready, NULL,
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twl6040_readyint_handler, IRQF_ONESHOT,
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"twl6040_irq_ready", twl6040);
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if (ret) {
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dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret);
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goto readyirq_err;
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}
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ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_TH,
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NULL, twl6040_thint_handler, IRQF_ONESHOT,
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ret = request_threaded_irq(twl6040->irq_th, NULL,
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twl6040_thint_handler, IRQF_ONESHOT,
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"twl6040_irq_th", twl6040);
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if (ret) {
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dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
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@ -604,7 +629,7 @@ static int __devinit twl6040_probe(struct i2c_client *client,
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* The ASoC codec can work without pdata, pass the platform_data only if
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* it has been provided.
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*/
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irq = twl6040->irq_base + TWL6040_IRQ_PLUG;
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irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG);
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cell = &twl6040->cells[children];
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cell->name = "twl6040-codec";
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twl6040_codec_rsrc[0].start = irq;
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@ -618,7 +643,7 @@ static int __devinit twl6040_probe(struct i2c_client *client,
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children++;
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if (twl6040_has_vibra(pdata, node)) {
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irq = twl6040->irq_base + TWL6040_IRQ_VIB;
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irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB);
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cell = &twl6040->cells[children];
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cell->name = "twl6040-vibra";
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@ -657,11 +682,11 @@ static int __devinit twl6040_probe(struct i2c_client *client,
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return 0;
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mfd_err:
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free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040);
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free_irq(twl6040->irq_th, twl6040);
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thirq_err:
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free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
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free_irq(twl6040->irq_ready, twl6040);
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readyirq_err:
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twl6040_irq_exit(twl6040);
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regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
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irq_init_err:
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if (gpio_is_valid(twl6040->audpwron))
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gpio_free(twl6040->audpwron);
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@ -685,9 +710,9 @@ static int __devexit twl6040_remove(struct i2c_client *client)
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if (gpio_is_valid(twl6040->audpwron))
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gpio_free(twl6040->audpwron);
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free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
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free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040);
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twl6040_irq_exit(twl6040);
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free_irq(twl6040->irq_ready, twl6040);
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free_irq(twl6040->irq_th, twl6040);
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regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
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mfd_remove_devices(&client->dev);
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i2c_set_clientdata(client, NULL);
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@ -1,205 +0,0 @@
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/*
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* Interrupt controller support for TWL6040
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*
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* Author: Misael Lopez Cruz <misael.lopez@ti.com>
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*
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* Copyright: (C) 2011 Texas Instruments, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* 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 in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/irq.h>
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#include <linux/of.h>
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#include <linux/irqdomain.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/twl6040.h>
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struct twl6040_irq_data {
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int mask;
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int status;
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};
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static struct twl6040_irq_data twl6040_irqs[] = {
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{
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.mask = TWL6040_THMSK,
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.status = TWL6040_THINT,
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},
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{
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.mask = TWL6040_PLUGMSK,
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.status = TWL6040_PLUGINT | TWL6040_UNPLUGINT,
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},
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{
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.mask = TWL6040_HOOKMSK,
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.status = TWL6040_HOOKINT,
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},
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{
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.mask = TWL6040_HFMSK,
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.status = TWL6040_HFINT,
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},
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{
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.mask = TWL6040_VIBMSK,
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.status = TWL6040_VIBINT,
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},
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{
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.mask = TWL6040_READYMSK,
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.status = TWL6040_READYINT,
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},
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};
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static inline
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struct twl6040_irq_data *irq_to_twl6040_irq(struct twl6040 *twl6040,
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int irq)
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{
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return &twl6040_irqs[irq - twl6040->irq_base];
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}
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static void twl6040_irq_lock(struct irq_data *data)
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{
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struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data);
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mutex_lock(&twl6040->irq_mutex);
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}
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static void twl6040_irq_sync_unlock(struct irq_data *data)
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{
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struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data);
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/* write back to hardware any change in irq mask */
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if (twl6040->irq_masks_cur != twl6040->irq_masks_cache) {
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twl6040->irq_masks_cache = twl6040->irq_masks_cur;
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twl6040_reg_write(twl6040, TWL6040_REG_INTMR,
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twl6040->irq_masks_cur);
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}
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mutex_unlock(&twl6040->irq_mutex);
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}
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static void twl6040_irq_enable(struct irq_data *data)
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{
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struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data);
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struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040,
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data->irq);
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twl6040->irq_masks_cur &= ~irq_data->mask;
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}
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static void twl6040_irq_disable(struct irq_data *data)
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{
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struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data);
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struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040,
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data->irq);
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twl6040->irq_masks_cur |= irq_data->mask;
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}
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static struct irq_chip twl6040_irq_chip = {
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.name = "twl6040",
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.irq_bus_lock = twl6040_irq_lock,
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.irq_bus_sync_unlock = twl6040_irq_sync_unlock,
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.irq_enable = twl6040_irq_enable,
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.irq_disable = twl6040_irq_disable,
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};
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static irqreturn_t twl6040_irq_thread(int irq, void *data)
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{
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struct twl6040 *twl6040 = data;
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u8 intid;
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int i;
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intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
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/* apply masking and report (backwards to handle READYINT first) */
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for (i = ARRAY_SIZE(twl6040_irqs) - 1; i >= 0; i--) {
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if (twl6040->irq_masks_cur & twl6040_irqs[i].mask)
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intid &= ~twl6040_irqs[i].status;
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if (intid & twl6040_irqs[i].status)
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handle_nested_irq(twl6040->irq_base + i);
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}
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/* ack unmasked irqs */
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twl6040_reg_write(twl6040, TWL6040_REG_INTID, intid);
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return IRQ_HANDLED;
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}
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int twl6040_irq_init(struct twl6040 *twl6040)
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{
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struct device_node *node = twl6040->dev->of_node;
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int i, nr_irqs, irq_base, ret;
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u8 val;
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mutex_init(&twl6040->irq_mutex);
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/* mask the individual interrupt sources */
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twl6040->irq_masks_cur = TWL6040_ALLINT_MSK;
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twl6040->irq_masks_cache = TWL6040_ALLINT_MSK;
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twl6040_reg_write(twl6040, TWL6040_REG_INTMR, TWL6040_ALLINT_MSK);
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nr_irqs = ARRAY_SIZE(twl6040_irqs);
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irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
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if (IS_ERR_VALUE(irq_base)) {
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dev_err(twl6040->dev, "Fail to allocate IRQ descs\n");
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return irq_base;
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}
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twl6040->irq_base = irq_base;
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irq_domain_add_legacy(node, ARRAY_SIZE(twl6040_irqs), irq_base, 0,
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&irq_domain_simple_ops, NULL);
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/* Register them with genirq */
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for (i = irq_base; i < irq_base + nr_irqs; i++) {
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irq_set_chip_data(i, twl6040);
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irq_set_chip_and_handler(i, &twl6040_irq_chip,
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handle_level_irq);
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irq_set_nested_thread(i, 1);
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/* ARM needs us to explicitly flag the IRQ as valid
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* and will set them noprobe when we do so. */
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#ifdef CONFIG_ARM
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set_irq_flags(i, IRQF_VALID);
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#else
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irq_set_noprobe(i);
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#endif
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}
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ret = request_threaded_irq(twl6040->irq, NULL, twl6040_irq_thread,
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IRQF_ONESHOT, "twl6040", twl6040);
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if (ret) {
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dev_err(twl6040->dev, "failed to request IRQ %d: %d\n",
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twl6040->irq, ret);
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return ret;
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}
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/* reset interrupts */
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val = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
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/* interrupts cleared on write */
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twl6040_clear_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_INTCLRMODE);
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return 0;
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}
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EXPORT_SYMBOL(twl6040_irq_init);
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void twl6040_irq_exit(struct twl6040 *twl6040)
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{
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free_irq(twl6040->irq, twl6040);
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}
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EXPORT_SYMBOL(twl6040_irq_exit);
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@ -207,10 +207,12 @@ struct twl6040_platform_data {
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};
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struct regmap;
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struct regmap_irq_chips_data;
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struct twl6040 {
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struct device *dev;
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struct regmap *regmap;
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struct regmap_irq_chip_data *irq_data;
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struct regulator_bulk_data supplies[2]; /* supplies for vio, v2v1 */
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struct mutex mutex;
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struct mutex irq_mutex;
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@ -228,9 +230,8 @@ struct twl6040 {
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unsigned int mclk;
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unsigned int irq;
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unsigned int irq_base;
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u8 irq_masks_cur;
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u8 irq_masks_cache;
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unsigned int irq_ready;
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unsigned int irq_th;
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};
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int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg);
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@ -245,8 +246,7 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
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unsigned int freq_in, unsigned int freq_out);
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int twl6040_get_pll(struct twl6040 *twl6040);
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unsigned int twl6040_get_sysclk(struct twl6040 *twl6040);
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int twl6040_irq_init(struct twl6040 *twl6040);
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void twl6040_irq_exit(struct twl6040 *twl6040);
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/* Get the combined status of the vibra control register */
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int twl6040_get_vibralr_status(struct twl6040 *twl6040);
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