summaryrefslogtreecommitdiffstats
path: root/drivers/power/avs
AgeCommit message (Expand)Author
2013-06-10PM / AVS: SmartReflex: use devm_* API to initialize SmartReflexAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: use omap_sr * for enable/disable interfaceAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: use omap_sr * for minmax interfacesAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: use omap_sr * for errgen interfacesAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: fix driver nameAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: disable runtime PM on driver removeAndrii Tseglytskyi
2013-06-10PM / AVS: SmartReflex: disable errgen before vpbound disableNishanth Menon
2012-12-17ARM: OMAP2+: Drop plat/cpu.h for omap2plusTony Lindgren
2012-12-13Merge tag 'pm-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm...Linus Torvalds
2012-11-28power: remove use of __devexitBill Pemberton
2012-11-28power: remove use of __devexit_pBill Pemberton
2012-10-15ARM: OMAP: SmartReflex: pass device dependent data via platform dataJean Pihet
2012-10-08Merge tag 'for_3.7-fixes-pm' of git://git.kernel.org/pub/scm/linux/kernel/git...Tony Lindgren
2012-10-02ARM: OMAP: SmartReflex: fix error path in init functionJean Pihet
2012-09-12ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQTony Lindgren
2012-06-29ARM: OMAP2+: do not allow SmartReflex to be built as a moduleJean Pihet
2012-05-31ARM: OMAP: SmartReflex: Move smartreflex driver to drivers/Jean Pihet
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-30 05:29:40 +0000
44 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 
/*
 * Base driver for Marvell 88PM805
 *
 * Copyright (C) 2012 Marvell International Ltd.
 * Haojian Zhuang <haojian.zhuang@marvell.com>
 * Joseph(Yossi) Hanin <yhanin@marvell.com>
 * Qiao Zhou <zhouqiao@marvell.com>
 *
 * This file is subject to the terms and conditions of the GNU General
 * Public License. See the file "COPYING" in the main directory of this
 * archive for more details.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/mfd/88pm80x.h>
#include <linux/slab.h>
#include <linux/delay.h>

static const struct i2c_device_id pm80x_id_table[] = {
	{"88PM805", 0},
	{} /* NULL terminated */
};
MODULE_DEVICE_TABLE(i2c, pm80x_id_table);

/* Interrupt Number in 88PM805 */
enum {
	PM805_IRQ_LDO_OFF,	/*0 */
	PM805_IRQ_SRC_DPLL_LOCK,	/*1 */
	PM805_IRQ_CLIP_FAULT,
	PM805_IRQ_MIC_CONFLICT,
	PM805_IRQ_HP2_SHRT,
	PM805_IRQ_HP1_SHRT,	/*5 */
	PM805_IRQ_FINE_PLL_FAULT,
	PM805_IRQ_RAW_PLL_FAULT,
	PM805_IRQ_VOLP_BTN_DET,
	PM805_IRQ_VOLM_BTN_DET,
	PM805_IRQ_SHRT_BTN_DET,	/*10 */
	PM805_IRQ_MIC_DET,	/*11 */

	PM805_MAX_IRQ,
};

static struct resource codec_resources[] = {
	{
	 /* Headset microphone insertion or removal */
	 .name = "micin",
	 .start = PM805_IRQ_MIC_DET,
	 .end = PM805_IRQ_MIC_DET,
	 .flags = IORESOURCE_IRQ,
	 },
	{
	 /* Audio short HP1 */
	 .name = "audio-short1",
	 .start = PM805_IRQ_HP1_SHRT,
	 .end = PM805_IRQ_HP1_SHRT,
	 .flags = IORESOURCE_IRQ,
	 },
	{
	 /* Audio short HP2 */
	 .name = "audio-short2",
	 .start = PM805_IRQ_HP2_SHRT,
	 .end = PM805_IRQ_HP2_SHRT,
	 .flags = IORESOURCE_IRQ,
	 },
};

static const struct mfd_cell codec_devs[] = {
	{
	 .name = "88pm80x-codec",
	 .num_resources = ARRAY_SIZE(codec_resources),
	 .resources = &codec_resources[0],
	 .id = -1,
	 },
};

static struct regmap_irq pm805_irqs[] = {
	/* INT0 */
	[PM805_IRQ_LDO_OFF] = {
		.mask = PM805_INT1_HP1_SHRT,
	},
	[PM805_IRQ_SRC_DPLL_LOCK] = {
		.mask = PM805_INT1_HP2_SHRT,
	},
	[PM805_IRQ_CLIP_FAULT] = {
		.mask = PM805_INT1_MIC_CONFLICT,
	},
	[PM805_IRQ_MIC_CONFLICT] = {
		.mask = PM805_INT1_CLIP_FAULT,
	},
	[PM805_IRQ_HP2_SHRT] = {
		.mask = PM805_INT1_LDO_OFF,
	},
	[PM805_IRQ_HP1_SHRT] = {
		.mask = PM805_INT1_SRC_DPLL_LOCK,
	},
	/* INT1 */
	[PM805_IRQ_FINE_PLL_FAULT] = {
		.reg_offset = 1,
		.mask = PM805_INT2_MIC_DET,
	},
	[PM805_IRQ_RAW_PLL_FAULT] = {
		.reg_offset = 1,
		.mask = PM805_INT2_SHRT_BTN_DET,
	},
	[PM805_IRQ_VOLP_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_VOLM_BTN_DET,
	},
	[PM805_IRQ_VOLM_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_VOLP_BTN_DET,
	},
	[PM805_IRQ_SHRT_BTN_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_RAW_PLL_FAULT,
	},
	[PM805_IRQ_MIC_DET] = {
		.reg_offset = 1,
		.mask = PM805_INT2_FINE_PLL_FAULT,
	},
};

static int device_irq_init_805(struct pm80x_chip *chip)
{
	struct regmap *map = chip->regmap;
	unsigned long flags = IRQF_ONESHOT;
	int data, mask, ret = -EINVAL;

	if (!map || !chip->irq) {
		dev_err(chip->dev, "incorrect parameters\n");
		return -EINVAL;
	}

	/*
	 * irq_mode defines the way of clearing interrupt. it's read-clear by
	 * default.
	 */
	mask =
	    PM805_STATUS0_INT_CLEAR | PM805_STATUS0_INV_INT |
	    PM800_STATUS0_INT_MASK;

	data = PM805_STATUS0_INT_CLEAR;
	ret = regmap_update_bits(map, PM805_INT_STATUS0, mask, data);
	/*
	 * PM805_INT_STATUS is under 32K clock domain, so need to
	 * add proper delay before the next I2C register access.
	 */
	usleep_range(1000, 3000);

	if (ret < 0)
		goto out;

	ret =
	    regmap_add_irq_chip(chip->regmap, chip->irq, flags, -1,
				chip->regmap_irq_chip, &chip->irq_data);

out:
	return ret;
}

static void device_irq_exit_805(struct pm80x_chip *chip)
{
	regmap_del_irq_chip(chip->irq, chip->irq_data);
}

static struct regmap_irq_chip pm805_irq_chip = {
	.name = "88pm805",
	.irqs = pm805_irqs,
	.num_irqs = ARRAY_SIZE(pm805_irqs),

	.num_regs = 2,
	.status_base = PM805_INT_STATUS1,
	.mask_base = PM805_INT_MASK1,
	.ack_base = PM805_INT_STATUS1,
};

static int device_805_init(struct pm80x_chip *chip)
{
	int ret = 0;
	struct regmap *map = chip->regmap;

	if (!map) {
		dev_err(chip->dev, "regmap is invalid\n");
		return -EINVAL;
	}

	chip->regmap_irq_chip = &pm805_irq_chip;

	ret = device_irq_init_805(chip);
	if (ret < 0) {
		dev_err(chip->dev, "Failed to init pm805 irq!\n");
		goto out_irq_init;
	}

	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
			      NULL);
	if (ret < 0) {
		dev_err(chip->dev, "Failed to add codec subdev\n");
		goto out_codec;
	} else
		dev_info(chip->dev, "[%s]:Added mfd codec_devs\n", __func__);

	return 0;

out_codec:
	device_irq_exit_805(chip);
out_irq_init:
	return ret;
}

static int pm805_probe(struct i2c_client *client,
				 const struct i2c_device_id *id)
{
	int ret = 0;
	struct pm80x_chip *chip;
	struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev);

	ret = pm80x_init(client);
	if (ret) {
		dev_err(&client->dev, "pm805_init fail!\n");
		goto out_init;
	}

	chip = i2c_get_clientdata(client);

	ret = device_805_init(chip);
	if (ret) {
		dev_err(chip->dev, "Failed to initialize 88pm805 devices\n");
		goto err_805_init;
	}

	if (pdata && pdata->plat_config)
		pdata->plat_config(chip, pdata);

err_805_init:
	pm80x_deinit();
out_init:
	return ret;
}

static int pm805_remove(struct i2c_client *client)
{
	struct pm80x_chip *chip = i2c_get_clientdata(client);

	mfd_remove_devices(chip->dev);
	device_irq_exit_805(chip);

	pm80x_deinit();

	return 0;
}

static struct i2c_driver pm805_driver = {
	.driver = {
		.name = "88PM805",
		.pm = &pm80x_pm_ops,
		},
	.probe = pm805_probe,
	.remove = pm805_remove,
	.id_table = pm80x_id_table,
};

static int __init pm805_i2c_init(void)
{
	return i2c_add_driver(&pm805_driver);
}
subsys_initcall(pm805_i2c_init);

static void __exit pm805_i2c_exit(void)
{
	i2c_del_driver(&pm805_driver);
}
module_exit(pm805_i2c_exit);

MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM805");
MODULE_AUTHOR("Qiao Zhou <zhouqiao@marvell.com>");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-30 05:29:39 +0000