170c6cce0SQiao Zhou /* 270c6cce0SQiao Zhou * Base driver for Marvell 88PM805 370c6cce0SQiao Zhou * 470c6cce0SQiao Zhou * Copyright (C) 2012 Marvell International Ltd. 570c6cce0SQiao Zhou * Haojian Zhuang <haojian.zhuang@marvell.com> 670c6cce0SQiao Zhou * Joseph(Yossi) Hanin <yhanin@marvell.com> 770c6cce0SQiao Zhou * Qiao Zhou <zhouqiao@marvell.com> 870c6cce0SQiao Zhou * 970c6cce0SQiao Zhou * This file is subject to the terms and conditions of the GNU General 1070c6cce0SQiao Zhou * Public License. See the file "COPYING" in the main directory of this 1170c6cce0SQiao Zhou * archive for more details. 1270c6cce0SQiao Zhou * 1370c6cce0SQiao Zhou * This program is distributed in the hope that it will be useful, 1470c6cce0SQiao Zhou * but WITHOUT ANY WARRANTY; without even the implied warranty of 1570c6cce0SQiao Zhou * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1670c6cce0SQiao Zhou * GNU General Public License for more details. 1770c6cce0SQiao Zhou * 1870c6cce0SQiao Zhou * You should have received a copy of the GNU General Public License 1970c6cce0SQiao Zhou * along with this program; if not, write to the Free Software 2070c6cce0SQiao Zhou * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 2170c6cce0SQiao Zhou */ 2270c6cce0SQiao Zhou 2370c6cce0SQiao Zhou #include <linux/kernel.h> 2470c6cce0SQiao Zhou #include <linux/module.h> 2570c6cce0SQiao Zhou #include <linux/i2c.h> 2670c6cce0SQiao Zhou #include <linux/irq.h> 2770c6cce0SQiao Zhou #include <linux/mfd/core.h> 2870c6cce0SQiao Zhou #include <linux/mfd/88pm80x.h> 2970c6cce0SQiao Zhou #include <linux/slab.h> 3070c6cce0SQiao Zhou #include <linux/delay.h> 3170c6cce0SQiao Zhou 3270c6cce0SQiao Zhou static const struct i2c_device_id pm80x_id_table[] = { 3303dcc544SChao Xie {"88PM805", 0}, 3431b3ffbdSSamuel Ortiz {} /* NULL terminated */ 3570c6cce0SQiao Zhou }; 3670c6cce0SQiao Zhou MODULE_DEVICE_TABLE(i2c, pm80x_id_table); 3770c6cce0SQiao Zhou 3870c6cce0SQiao Zhou /* Interrupt Number in 88PM805 */ 3970c6cce0SQiao Zhou enum { 4070c6cce0SQiao Zhou PM805_IRQ_LDO_OFF, /*0 */ 4170c6cce0SQiao Zhou PM805_IRQ_SRC_DPLL_LOCK, /*1 */ 4270c6cce0SQiao Zhou PM805_IRQ_CLIP_FAULT, 4370c6cce0SQiao Zhou PM805_IRQ_MIC_CONFLICT, 4470c6cce0SQiao Zhou PM805_IRQ_HP2_SHRT, 4570c6cce0SQiao Zhou PM805_IRQ_HP1_SHRT, /*5 */ 4670c6cce0SQiao Zhou PM805_IRQ_FINE_PLL_FAULT, 4770c6cce0SQiao Zhou PM805_IRQ_RAW_PLL_FAULT, 4870c6cce0SQiao Zhou PM805_IRQ_VOLP_BTN_DET, 4970c6cce0SQiao Zhou PM805_IRQ_VOLM_BTN_DET, 5070c6cce0SQiao Zhou PM805_IRQ_SHRT_BTN_DET, /*10 */ 5170c6cce0SQiao Zhou PM805_IRQ_MIC_DET, /*11 */ 5270c6cce0SQiao Zhou 5370c6cce0SQiao Zhou PM805_MAX_IRQ, 5470c6cce0SQiao Zhou }; 5570c6cce0SQiao Zhou 5670c6cce0SQiao Zhou static struct resource codec_resources[] = { 5770c6cce0SQiao Zhou { 5870c6cce0SQiao Zhou /* Headset microphone insertion or removal */ 5970c6cce0SQiao Zhou .name = "micin", 6070c6cce0SQiao Zhou .start = PM805_IRQ_MIC_DET, 6170c6cce0SQiao Zhou .end = PM805_IRQ_MIC_DET, 6270c6cce0SQiao Zhou .flags = IORESOURCE_IRQ, 6370c6cce0SQiao Zhou }, 6470c6cce0SQiao Zhou { 6570c6cce0SQiao Zhou /* Audio short HP1 */ 6670c6cce0SQiao Zhou .name = "audio-short1", 6770c6cce0SQiao Zhou .start = PM805_IRQ_HP1_SHRT, 6870c6cce0SQiao Zhou .end = PM805_IRQ_HP1_SHRT, 6970c6cce0SQiao Zhou .flags = IORESOURCE_IRQ, 7070c6cce0SQiao Zhou }, 7170c6cce0SQiao Zhou { 7270c6cce0SQiao Zhou /* Audio short HP2 */ 7370c6cce0SQiao Zhou .name = "audio-short2", 7470c6cce0SQiao Zhou .start = PM805_IRQ_HP2_SHRT, 7570c6cce0SQiao Zhou .end = PM805_IRQ_HP2_SHRT, 7670c6cce0SQiao Zhou .flags = IORESOURCE_IRQ, 7770c6cce0SQiao Zhou }, 7870c6cce0SQiao Zhou }; 7970c6cce0SQiao Zhou 8070c6cce0SQiao Zhou static struct mfd_cell codec_devs[] = { 8170c6cce0SQiao Zhou { 8270c6cce0SQiao Zhou .name = "88pm80x-codec", 8370c6cce0SQiao Zhou .num_resources = ARRAY_SIZE(codec_resources), 8470c6cce0SQiao Zhou .resources = &codec_resources[0], 8570c6cce0SQiao Zhou .id = -1, 8670c6cce0SQiao Zhou }, 8770c6cce0SQiao Zhou }; 8870c6cce0SQiao Zhou 8970c6cce0SQiao Zhou static struct regmap_irq pm805_irqs[] = { 9070c6cce0SQiao Zhou /* INT0 */ 9170c6cce0SQiao Zhou [PM805_IRQ_LDO_OFF] = { 9270c6cce0SQiao Zhou .mask = PM805_INT1_HP1_SHRT, 9370c6cce0SQiao Zhou }, 9470c6cce0SQiao Zhou [PM805_IRQ_SRC_DPLL_LOCK] = { 9570c6cce0SQiao Zhou .mask = PM805_INT1_HP2_SHRT, 9670c6cce0SQiao Zhou }, 9770c6cce0SQiao Zhou [PM805_IRQ_CLIP_FAULT] = { 9870c6cce0SQiao Zhou .mask = PM805_INT1_MIC_CONFLICT, 9970c6cce0SQiao Zhou }, 10070c6cce0SQiao Zhou [PM805_IRQ_MIC_CONFLICT] = { 10170c6cce0SQiao Zhou .mask = PM805_INT1_CLIP_FAULT, 10270c6cce0SQiao Zhou }, 10370c6cce0SQiao Zhou [PM805_IRQ_HP2_SHRT] = { 10470c6cce0SQiao Zhou .mask = PM805_INT1_LDO_OFF, 10570c6cce0SQiao Zhou }, 10670c6cce0SQiao Zhou [PM805_IRQ_HP1_SHRT] = { 10770c6cce0SQiao Zhou .mask = PM805_INT1_SRC_DPLL_LOCK, 10870c6cce0SQiao Zhou }, 10970c6cce0SQiao Zhou /* INT1 */ 11070c6cce0SQiao Zhou [PM805_IRQ_FINE_PLL_FAULT] = { 11170c6cce0SQiao Zhou .reg_offset = 1, 11270c6cce0SQiao Zhou .mask = PM805_INT2_MIC_DET, 11370c6cce0SQiao Zhou }, 11470c6cce0SQiao Zhou [PM805_IRQ_RAW_PLL_FAULT] = { 11570c6cce0SQiao Zhou .reg_offset = 1, 11670c6cce0SQiao Zhou .mask = PM805_INT2_SHRT_BTN_DET, 11770c6cce0SQiao Zhou }, 11870c6cce0SQiao Zhou [PM805_IRQ_VOLP_BTN_DET] = { 11970c6cce0SQiao Zhou .reg_offset = 1, 12070c6cce0SQiao Zhou .mask = PM805_INT2_VOLM_BTN_DET, 12170c6cce0SQiao Zhou }, 12270c6cce0SQiao Zhou [PM805_IRQ_VOLM_BTN_DET] = { 12370c6cce0SQiao Zhou .reg_offset = 1, 12470c6cce0SQiao Zhou .mask = PM805_INT2_VOLP_BTN_DET, 12570c6cce0SQiao Zhou }, 12670c6cce0SQiao Zhou [PM805_IRQ_SHRT_BTN_DET] = { 12770c6cce0SQiao Zhou .reg_offset = 1, 12870c6cce0SQiao Zhou .mask = PM805_INT2_RAW_PLL_FAULT, 12970c6cce0SQiao Zhou }, 13070c6cce0SQiao Zhou [PM805_IRQ_MIC_DET] = { 13170c6cce0SQiao Zhou .reg_offset = 1, 13270c6cce0SQiao Zhou .mask = PM805_INT2_FINE_PLL_FAULT, 13370c6cce0SQiao Zhou }, 13470c6cce0SQiao Zhou }; 13570c6cce0SQiao Zhou 136f791be49SBill Pemberton static int device_irq_init_805(struct pm80x_chip *chip) 13770c6cce0SQiao Zhou { 13870c6cce0SQiao Zhou struct regmap *map = chip->regmap; 1391ef5677eSYi Zhang unsigned long flags = IRQF_ONESHOT; 14070c6cce0SQiao Zhou int data, mask, ret = -EINVAL; 14170c6cce0SQiao Zhou 14270c6cce0SQiao Zhou if (!map || !chip->irq) { 14370c6cce0SQiao Zhou dev_err(chip->dev, "incorrect parameters\n"); 14470c6cce0SQiao Zhou return -EINVAL; 14570c6cce0SQiao Zhou } 14670c6cce0SQiao Zhou 14770c6cce0SQiao Zhou /* 14870c6cce0SQiao Zhou * irq_mode defines the way of clearing interrupt. it's read-clear by 14970c6cce0SQiao Zhou * default. 15070c6cce0SQiao Zhou */ 15170c6cce0SQiao Zhou mask = 15270c6cce0SQiao Zhou PM805_STATUS0_INT_CLEAR | PM805_STATUS0_INV_INT | 15370c6cce0SQiao Zhou PM800_STATUS0_INT_MASK; 15470c6cce0SQiao Zhou 15570c6cce0SQiao Zhou data = PM805_STATUS0_INT_CLEAR; 15670c6cce0SQiao Zhou ret = regmap_update_bits(map, PM805_INT_STATUS0, mask, data); 15770c6cce0SQiao Zhou /* 15870c6cce0SQiao Zhou * PM805_INT_STATUS is under 32K clock domain, so need to 15970c6cce0SQiao Zhou * add proper delay before the next I2C register access. 16070c6cce0SQiao Zhou */ 16170c6cce0SQiao Zhou msleep(1); 16270c6cce0SQiao Zhou 16370c6cce0SQiao Zhou if (ret < 0) 16470c6cce0SQiao Zhou goto out; 16570c6cce0SQiao Zhou 16670c6cce0SQiao Zhou ret = 16770c6cce0SQiao Zhou regmap_add_irq_chip(chip->regmap, chip->irq, flags, -1, 16870c6cce0SQiao Zhou chip->regmap_irq_chip, &chip->irq_data); 16970c6cce0SQiao Zhou 17070c6cce0SQiao Zhou out: 17170c6cce0SQiao Zhou return ret; 17270c6cce0SQiao Zhou } 17370c6cce0SQiao Zhou 17470c6cce0SQiao Zhou static void device_irq_exit_805(struct pm80x_chip *chip) 17570c6cce0SQiao Zhou { 17670c6cce0SQiao Zhou regmap_del_irq_chip(chip->irq, chip->irq_data); 17770c6cce0SQiao Zhou } 17870c6cce0SQiao Zhou 17970c6cce0SQiao Zhou static struct regmap_irq_chip pm805_irq_chip = { 18070c6cce0SQiao Zhou .name = "88pm805", 18170c6cce0SQiao Zhou .irqs = pm805_irqs, 18270c6cce0SQiao Zhou .num_irqs = ARRAY_SIZE(pm805_irqs), 18370c6cce0SQiao Zhou 18470c6cce0SQiao Zhou .num_regs = 2, 18570c6cce0SQiao Zhou .status_base = PM805_INT_STATUS1, 18670c6cce0SQiao Zhou .mask_base = PM805_INT_MASK1, 18770c6cce0SQiao Zhou .ack_base = PM805_INT_STATUS1, 18870c6cce0SQiao Zhou }; 18970c6cce0SQiao Zhou 190f791be49SBill Pemberton static int device_805_init(struct pm80x_chip *chip) 19170c6cce0SQiao Zhou { 19270c6cce0SQiao Zhou int ret = 0; 19370c6cce0SQiao Zhou struct regmap *map = chip->regmap; 19470c6cce0SQiao Zhou 19570c6cce0SQiao Zhou if (!map) { 19670c6cce0SQiao Zhou dev_err(chip->dev, "regmap is invalid\n"); 19770c6cce0SQiao Zhou return -EINVAL; 19870c6cce0SQiao Zhou } 19970c6cce0SQiao Zhou 20070c6cce0SQiao Zhou chip->regmap_irq_chip = &pm805_irq_chip; 20170c6cce0SQiao Zhou 20270c6cce0SQiao Zhou ret = device_irq_init_805(chip); 20370c6cce0SQiao Zhou if (ret < 0) { 20470c6cce0SQiao Zhou dev_err(chip->dev, "Failed to init pm805 irq!\n"); 20570c6cce0SQiao Zhou goto out_irq_init; 20670c6cce0SQiao Zhou } 20770c6cce0SQiao Zhou 20870c6cce0SQiao Zhou ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 2090848c94fSMark Brown ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 2100848c94fSMark Brown NULL); 21170c6cce0SQiao Zhou if (ret < 0) { 21270c6cce0SQiao Zhou dev_err(chip->dev, "Failed to add codec subdev\n"); 21370c6cce0SQiao Zhou goto out_codec; 21470c6cce0SQiao Zhou } else 21570c6cce0SQiao Zhou dev_info(chip->dev, "[%s]:Added mfd codec_devs\n", __func__); 21670c6cce0SQiao Zhou 21770c6cce0SQiao Zhou return 0; 21870c6cce0SQiao Zhou 21970c6cce0SQiao Zhou out_codec: 22070c6cce0SQiao Zhou device_irq_exit_805(chip); 22170c6cce0SQiao Zhou out_irq_init: 22270c6cce0SQiao Zhou return ret; 22370c6cce0SQiao Zhou } 22470c6cce0SQiao Zhou 225f791be49SBill Pemberton static int pm805_probe(struct i2c_client *client, 22670c6cce0SQiao Zhou const struct i2c_device_id *id) 22770c6cce0SQiao Zhou { 22870c6cce0SQiao Zhou int ret = 0; 22970c6cce0SQiao Zhou struct pm80x_chip *chip; 230334a41ceSJingoo Han struct pm80x_platform_data *pdata = dev_get_platdata(&client->dev); 23170c6cce0SQiao Zhou 23203dcc544SChao Xie ret = pm80x_init(client); 23370c6cce0SQiao Zhou if (ret) { 23470c6cce0SQiao Zhou dev_err(&client->dev, "pm805_init fail!\n"); 23570c6cce0SQiao Zhou goto out_init; 23670c6cce0SQiao Zhou } 23770c6cce0SQiao Zhou 23870c6cce0SQiao Zhou chip = i2c_get_clientdata(client); 23970c6cce0SQiao Zhou 24070c6cce0SQiao Zhou ret = device_805_init(chip); 24170c6cce0SQiao Zhou if (ret) { 24203dcc544SChao Xie dev_err(chip->dev, "Failed to initialize 88pm805 devices\n"); 24370c6cce0SQiao Zhou goto err_805_init; 24470c6cce0SQiao Zhou } 24570c6cce0SQiao Zhou 2462b274fe5SChao Xie if (pdata && pdata->plat_config) 24770c6cce0SQiao Zhou pdata->plat_config(chip, pdata); 24870c6cce0SQiao Zhou 24970c6cce0SQiao Zhou err_805_init: 250306df798SYi Zhang pm80x_deinit(); 25170c6cce0SQiao Zhou out_init: 25270c6cce0SQiao Zhou return ret; 25370c6cce0SQiao Zhou } 25470c6cce0SQiao Zhou 2554740f73fSBill Pemberton static int pm805_remove(struct i2c_client *client) 25670c6cce0SQiao Zhou { 25770c6cce0SQiao Zhou struct pm80x_chip *chip = i2c_get_clientdata(client); 25870c6cce0SQiao Zhou 25970c6cce0SQiao Zhou mfd_remove_devices(chip->dev); 26070c6cce0SQiao Zhou device_irq_exit_805(chip); 26170c6cce0SQiao Zhou 262306df798SYi Zhang pm80x_deinit(); 26370c6cce0SQiao Zhou 26470c6cce0SQiao Zhou return 0; 26570c6cce0SQiao Zhou } 26670c6cce0SQiao Zhou 26770c6cce0SQiao Zhou static struct i2c_driver pm805_driver = { 26870c6cce0SQiao Zhou .driver = { 26946223a19SChao Xie .name = "88PM805", 27070c6cce0SQiao Zhou .owner = THIS_MODULE, 27170c6cce0SQiao Zhou .pm = &pm80x_pm_ops, 27270c6cce0SQiao Zhou }, 27370c6cce0SQiao Zhou .probe = pm805_probe, 27484449216SBill Pemberton .remove = pm805_remove, 27570c6cce0SQiao Zhou .id_table = pm80x_id_table, 27670c6cce0SQiao Zhou }; 27770c6cce0SQiao Zhou 27870c6cce0SQiao Zhou static int __init pm805_i2c_init(void) 27970c6cce0SQiao Zhou { 28070c6cce0SQiao Zhou return i2c_add_driver(&pm805_driver); 28170c6cce0SQiao Zhou } 28270c6cce0SQiao Zhou subsys_initcall(pm805_i2c_init); 28370c6cce0SQiao Zhou 28470c6cce0SQiao Zhou static void __exit pm805_i2c_exit(void) 28570c6cce0SQiao Zhou { 28670c6cce0SQiao Zhou i2c_del_driver(&pm805_driver); 28770c6cce0SQiao Zhou } 28870c6cce0SQiao Zhou module_exit(pm805_i2c_exit); 28970c6cce0SQiao Zhou 29070c6cce0SQiao Zhou MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM805"); 29170c6cce0SQiao Zhou MODULE_AUTHOR("Qiao Zhou <zhouqiao@marvell.com>"); 29270c6cce0SQiao Zhou MODULE_LICENSE("GPL"); 293