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![Wolfram Sang](/assets/img/avatar_default.png)
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
757 lines
18 KiB
C
757 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* TI Palmas MFD Driver
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*
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* Copyright 2011-2012 Texas Instruments Inc.
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*
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* Author: Graeme Gregory <gg@slimlogic.co.uk>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/regmap.h>
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#include <linux/err.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/palmas.h>
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#include <linux/of_device.h>
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static const struct regmap_config palmas_regmap_config[PALMAS_NUM_CLIENTS] = {
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{
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
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PALMAS_PRIMARY_SECONDARY_PAD3),
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},
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{
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = PALMAS_BASE_TO_REG(PALMAS_GPADC_BASE,
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PALMAS_GPADC_SMPS_VSEL_MONITORING),
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},
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{
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = PALMAS_BASE_TO_REG(PALMAS_TRIM_GPADC_BASE,
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PALMAS_GPADC_TRIM16),
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},
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};
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static const struct regmap_irq tps65917_irqs[] = {
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/* INT1 IRQs */
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[TPS65917_RESERVED1] = {
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.mask = TPS65917_RESERVED,
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},
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[TPS65917_PWRON_IRQ] = {
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.mask = TPS65917_INT1_STATUS_PWRON,
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},
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[TPS65917_LONG_PRESS_KEY_IRQ] = {
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.mask = TPS65917_INT1_STATUS_LONG_PRESS_KEY,
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},
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[TPS65917_RESERVED2] = {
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.mask = TPS65917_RESERVED,
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},
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[TPS65917_PWRDOWN_IRQ] = {
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.mask = TPS65917_INT1_STATUS_PWRDOWN,
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},
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[TPS65917_HOTDIE_IRQ] = {
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.mask = TPS65917_INT1_STATUS_HOTDIE,
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},
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[TPS65917_VSYS_MON_IRQ] = {
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.mask = TPS65917_INT1_STATUS_VSYS_MON,
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},
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[TPS65917_RESERVED3] = {
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.mask = TPS65917_RESERVED,
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},
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/* INT2 IRQs*/
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[TPS65917_RESERVED4] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 1,
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},
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[TPS65917_OTP_ERROR_IRQ] = {
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.mask = TPS65917_INT2_STATUS_OTP_ERROR,
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.reg_offset = 1,
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},
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[TPS65917_WDT_IRQ] = {
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.mask = TPS65917_INT2_STATUS_WDT,
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.reg_offset = 1,
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},
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[TPS65917_RESERVED5] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 1,
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},
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[TPS65917_RESET_IN_IRQ] = {
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.mask = TPS65917_INT2_STATUS_RESET_IN,
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.reg_offset = 1,
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},
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[TPS65917_FSD_IRQ] = {
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.mask = TPS65917_INT2_STATUS_FSD,
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.reg_offset = 1,
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},
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[TPS65917_SHORT_IRQ] = {
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.mask = TPS65917_INT2_STATUS_SHORT,
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.reg_offset = 1,
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},
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[TPS65917_RESERVED6] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 1,
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},
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/* INT3 IRQs */
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[TPS65917_GPADC_AUTO_0_IRQ] = {
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.mask = TPS65917_INT3_STATUS_GPADC_AUTO_0,
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.reg_offset = 2,
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},
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[TPS65917_GPADC_AUTO_1_IRQ] = {
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.mask = TPS65917_INT3_STATUS_GPADC_AUTO_1,
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.reg_offset = 2,
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},
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[TPS65917_GPADC_EOC_SW_IRQ] = {
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.mask = TPS65917_INT3_STATUS_GPADC_EOC_SW,
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.reg_offset = 2,
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},
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[TPS65917_RESREVED6] = {
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.mask = TPS65917_RESERVED6,
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.reg_offset = 2,
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},
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[TPS65917_RESERVED7] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 2,
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},
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[TPS65917_RESERVED8] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 2,
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},
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[TPS65917_RESERVED9] = {
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.mask = TPS65917_RESERVED,
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.reg_offset = 2,
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},
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[TPS65917_VBUS_IRQ] = {
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.mask = TPS65917_INT3_STATUS_VBUS,
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.reg_offset = 2,
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},
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/* INT4 IRQs */
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[TPS65917_GPIO_0_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_0,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_1_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_1,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_2_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_2,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_3_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_3,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_4_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_4,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_5_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_5,
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.reg_offset = 3,
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},
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[TPS65917_GPIO_6_IRQ] = {
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.mask = TPS65917_INT4_STATUS_GPIO_6,
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.reg_offset = 3,
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},
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[TPS65917_RESERVED10] = {
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.mask = TPS65917_RESERVED10,
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.reg_offset = 3,
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},
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};
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static const struct regmap_irq palmas_irqs[] = {
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/* INT1 IRQs */
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[PALMAS_CHARG_DET_N_VBUS_OVV_IRQ] = {
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.mask = PALMAS_INT1_STATUS_CHARG_DET_N_VBUS_OVV,
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},
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[PALMAS_PWRON_IRQ] = {
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.mask = PALMAS_INT1_STATUS_PWRON,
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},
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[PALMAS_LONG_PRESS_KEY_IRQ] = {
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.mask = PALMAS_INT1_STATUS_LONG_PRESS_KEY,
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},
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[PALMAS_RPWRON_IRQ] = {
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.mask = PALMAS_INT1_STATUS_RPWRON,
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},
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[PALMAS_PWRDOWN_IRQ] = {
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.mask = PALMAS_INT1_STATUS_PWRDOWN,
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},
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[PALMAS_HOTDIE_IRQ] = {
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.mask = PALMAS_INT1_STATUS_HOTDIE,
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},
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[PALMAS_VSYS_MON_IRQ] = {
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.mask = PALMAS_INT1_STATUS_VSYS_MON,
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},
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[PALMAS_VBAT_MON_IRQ] = {
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.mask = PALMAS_INT1_STATUS_VBAT_MON,
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},
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/* INT2 IRQs*/
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[PALMAS_RTC_ALARM_IRQ] = {
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.mask = PALMAS_INT2_STATUS_RTC_ALARM,
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.reg_offset = 1,
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},
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[PALMAS_RTC_TIMER_IRQ] = {
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.mask = PALMAS_INT2_STATUS_RTC_TIMER,
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.reg_offset = 1,
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},
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[PALMAS_WDT_IRQ] = {
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.mask = PALMAS_INT2_STATUS_WDT,
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.reg_offset = 1,
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},
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[PALMAS_BATREMOVAL_IRQ] = {
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.mask = PALMAS_INT2_STATUS_BATREMOVAL,
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.reg_offset = 1,
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},
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[PALMAS_RESET_IN_IRQ] = {
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.mask = PALMAS_INT2_STATUS_RESET_IN,
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.reg_offset = 1,
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},
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[PALMAS_FBI_BB_IRQ] = {
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.mask = PALMAS_INT2_STATUS_FBI_BB,
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.reg_offset = 1,
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},
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[PALMAS_SHORT_IRQ] = {
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.mask = PALMAS_INT2_STATUS_SHORT,
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.reg_offset = 1,
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},
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[PALMAS_VAC_ACOK_IRQ] = {
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.mask = PALMAS_INT2_STATUS_VAC_ACOK,
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.reg_offset = 1,
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},
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/* INT3 IRQs */
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[PALMAS_GPADC_AUTO_0_IRQ] = {
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.mask = PALMAS_INT3_STATUS_GPADC_AUTO_0,
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.reg_offset = 2,
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},
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[PALMAS_GPADC_AUTO_1_IRQ] = {
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.mask = PALMAS_INT3_STATUS_GPADC_AUTO_1,
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.reg_offset = 2,
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},
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[PALMAS_GPADC_EOC_SW_IRQ] = {
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.mask = PALMAS_INT3_STATUS_GPADC_EOC_SW,
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.reg_offset = 2,
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},
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[PALMAS_GPADC_EOC_RT_IRQ] = {
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.mask = PALMAS_INT3_STATUS_GPADC_EOC_RT,
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.reg_offset = 2,
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},
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[PALMAS_ID_OTG_IRQ] = {
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.mask = PALMAS_INT3_STATUS_ID_OTG,
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.reg_offset = 2,
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},
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[PALMAS_ID_IRQ] = {
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.mask = PALMAS_INT3_STATUS_ID,
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.reg_offset = 2,
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},
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[PALMAS_VBUS_OTG_IRQ] = {
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.mask = PALMAS_INT3_STATUS_VBUS_OTG,
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.reg_offset = 2,
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},
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[PALMAS_VBUS_IRQ] = {
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.mask = PALMAS_INT3_STATUS_VBUS,
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.reg_offset = 2,
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},
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/* INT4 IRQs */
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[PALMAS_GPIO_0_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_0,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_1_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_1,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_2_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_2,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_3_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_3,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_4_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_4,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_5_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_5,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_6_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_6,
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.reg_offset = 3,
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},
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[PALMAS_GPIO_7_IRQ] = {
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.mask = PALMAS_INT4_STATUS_GPIO_7,
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.reg_offset = 3,
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},
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};
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static struct regmap_irq_chip palmas_irq_chip = {
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.name = "palmas",
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.irqs = palmas_irqs,
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.num_irqs = ARRAY_SIZE(palmas_irqs),
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.num_regs = 4,
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.irq_reg_stride = 5,
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.status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
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PALMAS_INT1_STATUS),
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.mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
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PALMAS_INT1_MASK),
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};
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static struct regmap_irq_chip tps65917_irq_chip = {
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.name = "tps65917",
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.irqs = tps65917_irqs,
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.num_irqs = ARRAY_SIZE(tps65917_irqs),
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.num_regs = 4,
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.irq_reg_stride = 5,
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.status_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
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PALMAS_INT1_STATUS),
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.mask_base = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE,
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PALMAS_INT1_MASK),
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};
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int palmas_ext_control_req_config(struct palmas *palmas,
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enum palmas_external_requestor_id id, int ext_ctrl, bool enable)
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{
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struct palmas_pmic_driver_data *pmic_ddata = palmas->pmic_ddata;
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int preq_mask_bit = 0;
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int reg_add = 0;
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int bit_pos, ret;
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if (!(ext_ctrl & PALMAS_EXT_REQ))
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return 0;
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if (id >= PALMAS_EXTERNAL_REQSTR_ID_MAX)
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return 0;
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if (ext_ctrl & PALMAS_EXT_CONTROL_NSLEEP) {
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reg_add = PALMAS_NSLEEP_RES_ASSIGN;
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preq_mask_bit = 0;
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} else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE1) {
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reg_add = PALMAS_ENABLE1_RES_ASSIGN;
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preq_mask_bit = 1;
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} else if (ext_ctrl & PALMAS_EXT_CONTROL_ENABLE2) {
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reg_add = PALMAS_ENABLE2_RES_ASSIGN;
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preq_mask_bit = 2;
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}
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bit_pos = pmic_ddata->sleep_req_info[id].bit_pos;
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reg_add += pmic_ddata->sleep_req_info[id].reg_offset;
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if (enable)
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ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
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reg_add, BIT(bit_pos), BIT(bit_pos));
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else
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ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
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reg_add, BIT(bit_pos), 0);
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if (ret < 0) {
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dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
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reg_add, ret);
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return ret;
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}
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/* Unmask the PREQ */
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ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE,
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PALMAS_POWER_CTRL, BIT(preq_mask_bit), 0);
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if (ret < 0) {
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dev_err(palmas->dev, "POWER_CTRL register update failed %d\n",
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ret);
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return ret;
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}
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return ret;
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}
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EXPORT_SYMBOL_GPL(palmas_ext_control_req_config);
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static int palmas_set_pdata_irq_flag(struct i2c_client *i2c,
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struct palmas_platform_data *pdata)
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{
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struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
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if (!irq_data) {
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dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
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return -EINVAL;
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}
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pdata->irq_flags = irqd_get_trigger_type(irq_data);
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dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags);
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return 0;
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}
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static void palmas_dt_to_pdata(struct i2c_client *i2c,
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struct palmas_platform_data *pdata)
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{
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struct device_node *node = i2c->dev.of_node;
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int ret;
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u32 prop;
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ret = of_property_read_u32(node, "ti,mux-pad1", &prop);
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if (!ret) {
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pdata->mux_from_pdata = 1;
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pdata->pad1 = prop;
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}
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ret = of_property_read_u32(node, "ti,mux-pad2", &prop);
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if (!ret) {
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pdata->mux_from_pdata = 1;
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pdata->pad2 = prop;
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}
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/* The default for this register is all masked */
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ret = of_property_read_u32(node, "ti,power-ctrl", &prop);
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if (!ret)
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pdata->power_ctrl = prop;
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else
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pdata->power_ctrl = PALMAS_POWER_CTRL_NSLEEP_MASK |
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PALMAS_POWER_CTRL_ENABLE1_MASK |
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PALMAS_POWER_CTRL_ENABLE2_MASK;
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if (i2c->irq)
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palmas_set_pdata_irq_flag(i2c, pdata);
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pdata->pm_off = of_property_read_bool(node,
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"ti,system-power-controller");
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}
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static struct palmas *palmas_dev;
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static void palmas_power_off(void)
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{
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unsigned int addr;
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int ret, slave;
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u8 powerhold_mask;
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struct device_node *np = palmas_dev->dev->of_node;
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if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
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addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
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PALMAS_PRIMARY_SECONDARY_PAD2);
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slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
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if (of_device_is_compatible(np, "ti,tps65917"))
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powerhold_mask =
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TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK;
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else
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powerhold_mask =
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PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK;
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ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
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powerhold_mask, 0);
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if (ret)
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dev_err(palmas_dev->dev,
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"Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
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ret);
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}
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slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
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addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
|
|
|
|
ret = regmap_update_bits(
|
|
palmas_dev->regmap[slave],
|
|
addr,
|
|
PALMAS_DEV_CTRL_DEV_ON,
|
|
0);
|
|
|
|
if (ret)
|
|
pr_err("%s: Unable to write to DEV_CTRL_DEV_ON: %d\n",
|
|
__func__, ret);
|
|
}
|
|
|
|
static unsigned int palmas_features = PALMAS_PMIC_FEATURE_SMPS10_BOOST;
|
|
static unsigned int tps659038_features;
|
|
|
|
struct palmas_driver_data {
|
|
unsigned int *features;
|
|
struct regmap_irq_chip *irq_chip;
|
|
};
|
|
|
|
static struct palmas_driver_data palmas_data = {
|
|
.features = &palmas_features,
|
|
.irq_chip = &palmas_irq_chip,
|
|
};
|
|
|
|
static struct palmas_driver_data tps659038_data = {
|
|
.features = &tps659038_features,
|
|
.irq_chip = &palmas_irq_chip,
|
|
};
|
|
|
|
static struct palmas_driver_data tps65917_data = {
|
|
.features = &tps659038_features,
|
|
.irq_chip = &tps65917_irq_chip,
|
|
};
|
|
|
|
static const struct of_device_id of_palmas_match_tbl[] = {
|
|
{
|
|
.compatible = "ti,palmas",
|
|
.data = &palmas_data,
|
|
},
|
|
{
|
|
.compatible = "ti,tps659038",
|
|
.data = &tps659038_data,
|
|
},
|
|
{
|
|
.compatible = "ti,tps65917",
|
|
.data = &tps65917_data,
|
|
},
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
|
|
|
|
static int palmas_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct palmas *palmas;
|
|
struct palmas_platform_data *pdata;
|
|
struct palmas_driver_data *driver_data;
|
|
struct device_node *node = i2c->dev.of_node;
|
|
int ret = 0, i;
|
|
unsigned int reg, addr;
|
|
int slave;
|
|
const struct of_device_id *match;
|
|
|
|
pdata = dev_get_platdata(&i2c->dev);
|
|
|
|
if (node && !pdata) {
|
|
pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
|
|
|
|
if (!pdata)
|
|
return -ENOMEM;
|
|
|
|
palmas_dt_to_pdata(i2c, pdata);
|
|
}
|
|
|
|
if (!pdata)
|
|
return -EINVAL;
|
|
|
|
palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL);
|
|
if (palmas == NULL)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, palmas);
|
|
palmas->dev = &i2c->dev;
|
|
palmas->irq = i2c->irq;
|
|
|
|
match = of_match_device(of_palmas_match_tbl, &i2c->dev);
|
|
|
|
if (!match)
|
|
return -ENODATA;
|
|
|
|
driver_data = (struct palmas_driver_data *)match->data;
|
|
palmas->features = *driver_data->features;
|
|
|
|
for (i = 0; i < PALMAS_NUM_CLIENTS; i++) {
|
|
if (i == 0)
|
|
palmas->i2c_clients[i] = i2c;
|
|
else {
|
|
palmas->i2c_clients[i] =
|
|
i2c_new_dummy_device(i2c->adapter,
|
|
i2c->addr + i);
|
|
if (IS_ERR(palmas->i2c_clients[i])) {
|
|
dev_err(palmas->dev,
|
|
"can't attach client %d\n", i);
|
|
ret = PTR_ERR(palmas->i2c_clients[i]);
|
|
goto err_i2c;
|
|
}
|
|
palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
|
|
}
|
|
palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i],
|
|
&palmas_regmap_config[i]);
|
|
if (IS_ERR(palmas->regmap[i])) {
|
|
ret = PTR_ERR(palmas->regmap[i]);
|
|
dev_err(palmas->dev,
|
|
"Failed to allocate regmap %d, err: %d\n",
|
|
i, ret);
|
|
goto err_i2c;
|
|
}
|
|
}
|
|
|
|
if (!palmas->irq) {
|
|
dev_warn(palmas->dev, "IRQ missing: skipping irq request\n");
|
|
goto no_irq;
|
|
}
|
|
|
|
/* Change interrupt line output polarity */
|
|
if (pdata->irq_flags & IRQ_TYPE_LEVEL_HIGH)
|
|
reg = PALMAS_POLARITY_CTRL_INT_POLARITY;
|
|
else
|
|
reg = 0;
|
|
ret = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
|
|
PALMAS_POLARITY_CTRL, PALMAS_POLARITY_CTRL_INT_POLARITY,
|
|
reg);
|
|
if (ret < 0) {
|
|
dev_err(palmas->dev, "POLARITY_CTRL update failed: %d\n", ret);
|
|
goto err_i2c;
|
|
}
|
|
|
|
/* Change IRQ into clear on read mode for efficiency */
|
|
slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
|
|
addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
|
|
reg = PALMAS_INT_CTRL_INT_CLEAR;
|
|
|
|
regmap_write(palmas->regmap[slave], addr, reg);
|
|
|
|
ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
|
|
IRQF_ONESHOT | pdata->irq_flags, 0,
|
|
driver_data->irq_chip, &palmas->irq_data);
|
|
if (ret < 0)
|
|
goto err_i2c;
|
|
|
|
no_irq:
|
|
slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
|
|
addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
|
|
PALMAS_PRIMARY_SECONDARY_PAD1);
|
|
|
|
if (pdata->mux_from_pdata) {
|
|
reg = pdata->pad1;
|
|
ret = regmap_write(palmas->regmap[slave], addr, reg);
|
|
if (ret)
|
|
goto err_irq;
|
|
} else {
|
|
ret = regmap_read(palmas->regmap[slave], addr, ®);
|
|
if (ret)
|
|
goto err_irq;
|
|
}
|
|
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_0))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED;
|
|
else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
|
|
(2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
|
|
palmas->led_muxed |= PALMAS_LED1_MUXED;
|
|
else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK) ==
|
|
(3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT))
|
|
palmas->pwm_muxed |= PALMAS_PWM1_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED;
|
|
else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
|
|
(2 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
|
|
palmas->led_muxed |= PALMAS_LED2_MUXED;
|
|
else if ((reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_MASK) ==
|
|
(3 << PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_2_SHIFT))
|
|
palmas->pwm_muxed |= PALMAS_PWM2_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_3))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED;
|
|
|
|
addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
|
|
PALMAS_PRIMARY_SECONDARY_PAD2);
|
|
|
|
if (pdata->mux_from_pdata) {
|
|
reg = pdata->pad2;
|
|
ret = regmap_write(palmas->regmap[slave], addr, reg);
|
|
if (ret)
|
|
goto err_irq;
|
|
} else {
|
|
ret = regmap_read(palmas->regmap[slave], addr, ®);
|
|
if (ret)
|
|
goto err_irq;
|
|
}
|
|
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_4))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_6))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED;
|
|
if (!(reg & PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK))
|
|
palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED;
|
|
|
|
dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n",
|
|
palmas->gpio_muxed, palmas->pwm_muxed,
|
|
palmas->led_muxed);
|
|
|
|
reg = pdata->power_ctrl;
|
|
|
|
slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
|
|
addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL);
|
|
|
|
ret = regmap_write(palmas->regmap[slave], addr, reg);
|
|
if (ret)
|
|
goto err_irq;
|
|
|
|
/*
|
|
* If we are probing with DT do this the DT way and return here
|
|
* otherwise continue and add devices using mfd helpers.
|
|
*/
|
|
if (node) {
|
|
ret = devm_of_platform_populate(&i2c->dev);
|
|
if (ret < 0) {
|
|
goto err_irq;
|
|
} else if (pdata->pm_off && !pm_power_off) {
|
|
palmas_dev = palmas;
|
|
pm_power_off = palmas_power_off;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
|
|
err_irq:
|
|
regmap_del_irq_chip(palmas->irq, palmas->irq_data);
|
|
err_i2c:
|
|
for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
|
|
if (palmas->i2c_clients[i])
|
|
i2c_unregister_device(palmas->i2c_clients[i]);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int palmas_i2c_remove(struct i2c_client *i2c)
|
|
{
|
|
struct palmas *palmas = i2c_get_clientdata(i2c);
|
|
int i;
|
|
|
|
regmap_del_irq_chip(palmas->irq, palmas->irq_data);
|
|
|
|
for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
|
|
if (palmas->i2c_clients[i])
|
|
i2c_unregister_device(palmas->i2c_clients[i]);
|
|
}
|
|
|
|
if (palmas == palmas_dev) {
|
|
pm_power_off = NULL;
|
|
palmas_dev = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id palmas_i2c_id[] = {
|
|
{ "palmas", },
|
|
{ "twl6035", },
|
|
{ "twl6037", },
|
|
{ "tps65913", },
|
|
{ /* end */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
|
|
|
|
static struct i2c_driver palmas_i2c_driver = {
|
|
.driver = {
|
|
.name = "palmas",
|
|
.of_match_table = of_palmas_match_tbl,
|
|
},
|
|
.probe = palmas_i2c_probe,
|
|
.remove = palmas_i2c_remove,
|
|
.id_table = palmas_i2c_id,
|
|
};
|
|
|
|
static int __init palmas_i2c_init(void)
|
|
{
|
|
return i2c_add_driver(&palmas_i2c_driver);
|
|
}
|
|
/* init early so consumer devices can complete system boot */
|
|
subsys_initcall(palmas_i2c_init);
|
|
|
|
static void __exit palmas_i2c_exit(void)
|
|
{
|
|
i2c_del_driver(&palmas_i2c_driver);
|
|
}
|
|
module_exit(palmas_i2c_exit);
|
|
|
|
MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
|
|
MODULE_DESCRIPTION("Palmas chip family multi-function driver");
|
|
MODULE_LICENSE("GPL");
|