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mfd: Add support for the MediaTek MT6359 PMIC
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This adds support for the MediaTek MT6359 PMIC. This is a
multifunction device with the following sub modules:

- Codec
- Interrupt
- Regulator
- RTC

It is interfaced to the host controller using SPI interface
by a proprietary hardware called PMIC wrapper or pwrap.
MT6359 MFD is a child device of the pwrap.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Hsin-Hsiung Wang authored and Lee Jones committed Jun 1, 2021
1 parent 8771456 commit e545b8f
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24 changes: 24 additions & 0 deletions drivers/mfd/mt6358-irq.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@
#include <linux/interrupt.h>
#include <linux/mfd/mt6358/core.h>
#include <linux/mfd/mt6358/registers.h>
#include <linux/mfd/mt6359/core.h>
#include <linux/mfd/mt6359/registers.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/module.h>
#include <linux/of.h>
Expand All @@ -26,13 +28,31 @@ static const struct irq_top_t mt6358_ints[] = {
MT6358_TOP_GEN(MISC),
};

static const struct irq_top_t mt6359_ints[] = {
MT6359_TOP_GEN(BUCK),
MT6359_TOP_GEN(LDO),
MT6359_TOP_GEN(PSC),
MT6359_TOP_GEN(SCK),
MT6359_TOP_GEN(BM),
MT6359_TOP_GEN(HK),
MT6359_TOP_GEN(AUD),
MT6359_TOP_GEN(MISC),
};

static struct pmic_irq_data mt6358_irqd = {
.num_top = ARRAY_SIZE(mt6358_ints),
.num_pmic_irqs = MT6358_IRQ_NR,
.top_int_status_reg = MT6358_TOP_INT_STATUS0,
.pmic_ints = mt6358_ints,
};

static struct pmic_irq_data mt6359_irqd = {
.num_top = ARRAY_SIZE(mt6359_ints),
.num_pmic_irqs = MT6359_IRQ_NR,
.top_int_status_reg = MT6359_TOP_INT_STATUS0,
.pmic_ints = mt6359_ints,
};

static void pmic_irq_enable(struct irq_data *data)
{
unsigned int hwirq = irqd_to_hwirq(data);
Expand Down Expand Up @@ -195,6 +215,10 @@ int mt6358_irq_init(struct mt6397_chip *chip)
chip->irq_data = &mt6358_irqd;
break;

case MT6359_CHIP_ID:
chip->irq_data = &mt6359_irqd;
break;

default:
dev_err(chip->dev, "unsupported chip: 0x%x\n", chip->chip_id);
return -ENODEV;
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24 changes: 24 additions & 0 deletions drivers/mfd/mt6397-core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,11 @@
#include <linux/mfd/core.h>
#include <linux/mfd/mt6323/core.h>
#include <linux/mfd/mt6358/core.h>
#include <linux/mfd/mt6359/core.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6323/registers.h>
#include <linux/mfd/mt6358/registers.h>
#include <linux/mfd/mt6359/registers.h>
#include <linux/mfd/mt6397/registers.h>

#define MT6323_RTC_BASE 0x8000
Expand Down Expand Up @@ -99,6 +101,17 @@ static const struct mfd_cell mt6358_devs[] = {
},
};

static const struct mfd_cell mt6359_devs[] = {
{ .name = "mt6359-regulator", },
{
.name = "mt6359-rtc",
.num_resources = ARRAY_SIZE(mt6358_rtc_resources),
.resources = mt6358_rtc_resources,
.of_compatible = "mediatek,mt6358-rtc",
},
{ .name = "mt6359-sound", },
};

static const struct mfd_cell mt6397_devs[] = {
{
.name = "mt6397-rtc",
Expand Down Expand Up @@ -149,6 +162,14 @@ static const struct chip_data mt6358_core = {
.irq_init = mt6358_irq_init,
};

static const struct chip_data mt6359_core = {
.cid_addr = MT6359_SWCID,
.cid_shift = 8,
.cells = mt6359_devs,
.cell_size = ARRAY_SIZE(mt6359_devs),
.irq_init = mt6358_irq_init,
};

static const struct chip_data mt6397_core = {
.cid_addr = MT6397_CID,
.cid_shift = 0,
Expand Down Expand Up @@ -218,6 +239,9 @@ static const struct of_device_id mt6397_of_match[] = {
}, {
.compatible = "mediatek,mt6358",
.data = &mt6358_core,
}, {
.compatible = "mediatek,mt6359",
.data = &mt6359_core,
}, {
.compatible = "mediatek,mt6397",
.data = &mt6397_core,
Expand Down
133 changes: 133 additions & 0 deletions include/linux/mfd/mt6359/core.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,133 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2021 MediaTek Inc.
*/

#ifndef __MFD_MT6359_CORE_H__
#define __MFD_MT6359_CORE_H__

enum mt6359_irq_top_status_shift {
MT6359_BUCK_TOP = 0,
MT6359_LDO_TOP,
MT6359_PSC_TOP,
MT6359_SCK_TOP,
MT6359_BM_TOP,
MT6359_HK_TOP,
MT6359_AUD_TOP = 7,
MT6359_MISC_TOP,
};

enum mt6359_irq_numbers {
MT6359_IRQ_VCORE_OC = 1,
MT6359_IRQ_VGPU11_OC,
MT6359_IRQ_VGPU12_OC,
MT6359_IRQ_VMODEM_OC,
MT6359_IRQ_VPROC1_OC,
MT6359_IRQ_VPROC2_OC,
MT6359_IRQ_VS1_OC,
MT6359_IRQ_VS2_OC,
MT6359_IRQ_VPA_OC = 9,
MT6359_IRQ_VFE28_OC = 16,
MT6359_IRQ_VXO22_OC,
MT6359_IRQ_VRF18_OC,
MT6359_IRQ_VRF12_OC,
MT6359_IRQ_VEFUSE_OC,
MT6359_IRQ_VCN33_1_OC,
MT6359_IRQ_VCN33_2_OC,
MT6359_IRQ_VCN13_OC,
MT6359_IRQ_VCN18_OC,
MT6359_IRQ_VA09_OC,
MT6359_IRQ_VCAMIO_OC,
MT6359_IRQ_VA12_OC,
MT6359_IRQ_VAUX18_OC,
MT6359_IRQ_VAUD18_OC,
MT6359_IRQ_VIO18_OC,
MT6359_IRQ_VSRAM_PROC1_OC,
MT6359_IRQ_VSRAM_PROC2_OC,
MT6359_IRQ_VSRAM_OTHERS_OC,
MT6359_IRQ_VSRAM_MD_OC,
MT6359_IRQ_VEMC_OC,
MT6359_IRQ_VSIM1_OC,
MT6359_IRQ_VSIM2_OC,
MT6359_IRQ_VUSB_OC,
MT6359_IRQ_VRFCK_OC,
MT6359_IRQ_VBBCK_OC,
MT6359_IRQ_VBIF28_OC,
MT6359_IRQ_VIBR_OC,
MT6359_IRQ_VIO28_OC,
MT6359_IRQ_VM18_OC,
MT6359_IRQ_VUFS_OC = 45,
MT6359_IRQ_PWRKEY = 48,
MT6359_IRQ_HOMEKEY,
MT6359_IRQ_PWRKEY_R,
MT6359_IRQ_HOMEKEY_R,
MT6359_IRQ_NI_LBAT_INT,
MT6359_IRQ_CHRDET_EDGE = 53,
MT6359_IRQ_RTC = 64,
MT6359_IRQ_FG_BAT_H = 80,
MT6359_IRQ_FG_BAT_L,
MT6359_IRQ_FG_CUR_H,
MT6359_IRQ_FG_CUR_L,
MT6359_IRQ_FG_ZCV = 84,
MT6359_IRQ_FG_N_CHARGE_L = 87,
MT6359_IRQ_FG_IAVG_H,
MT6359_IRQ_FG_IAVG_L = 89,
MT6359_IRQ_FG_DISCHARGE = 91,
MT6359_IRQ_FG_CHARGE,
MT6359_IRQ_BATON_LV = 96,
MT6359_IRQ_BATON_BAT_IN = 98,
MT6359_IRQ_BATON_BAT_OU,
MT6359_IRQ_BIF = 100,
MT6359_IRQ_BAT_H = 112,
MT6359_IRQ_BAT_L,
MT6359_IRQ_BAT2_H,
MT6359_IRQ_BAT2_L,
MT6359_IRQ_BAT_TEMP_H,
MT6359_IRQ_BAT_TEMP_L,
MT6359_IRQ_THR_H,
MT6359_IRQ_THR_L,
MT6359_IRQ_AUXADC_IMP,
MT6359_IRQ_NAG_C_DLTV = 121,
MT6359_IRQ_AUDIO = 128,
MT6359_IRQ_ACCDET = 133,
MT6359_IRQ_ACCDET_EINT0,
MT6359_IRQ_ACCDET_EINT1,
MT6359_IRQ_SPI_CMD_ALERT = 144,
MT6359_IRQ_NR,
};

#define MT6359_IRQ_BUCK_BASE MT6359_IRQ_VCORE_OC
#define MT6359_IRQ_LDO_BASE MT6359_IRQ_VFE28_OC
#define MT6359_IRQ_PSC_BASE MT6359_IRQ_PWRKEY
#define MT6359_IRQ_SCK_BASE MT6359_IRQ_RTC
#define MT6359_IRQ_BM_BASE MT6359_IRQ_FG_BAT_H
#define MT6359_IRQ_HK_BASE MT6359_IRQ_BAT_H
#define MT6359_IRQ_AUD_BASE MT6359_IRQ_AUDIO
#define MT6359_IRQ_MISC_BASE MT6359_IRQ_SPI_CMD_ALERT

#define MT6359_IRQ_BUCK_BITS (MT6359_IRQ_VPA_OC - MT6359_IRQ_BUCK_BASE + 1)
#define MT6359_IRQ_LDO_BITS (MT6359_IRQ_VUFS_OC - MT6359_IRQ_LDO_BASE + 1)
#define MT6359_IRQ_PSC_BITS \
(MT6359_IRQ_CHRDET_EDGE - MT6359_IRQ_PSC_BASE + 1)
#define MT6359_IRQ_SCK_BITS (MT6359_IRQ_RTC - MT6359_IRQ_SCK_BASE + 1)
#define MT6359_IRQ_BM_BITS (MT6359_IRQ_BIF - MT6359_IRQ_BM_BASE + 1)
#define MT6359_IRQ_HK_BITS (MT6359_IRQ_NAG_C_DLTV - MT6359_IRQ_HK_BASE + 1)
#define MT6359_IRQ_AUD_BITS \
(MT6359_IRQ_ACCDET_EINT1 - MT6359_IRQ_AUD_BASE + 1)
#define MT6359_IRQ_MISC_BITS \
(MT6359_IRQ_SPI_CMD_ALERT - MT6359_IRQ_MISC_BASE + 1)

#define MT6359_TOP_GEN(sp) \
{ \
.hwirq_base = MT6359_IRQ_##sp##_BASE, \
.num_int_regs = \
((MT6359_IRQ_##sp##_BITS - 1) / \
MTK_PMIC_REG_WIDTH) + 1, \
.en_reg = MT6359_##sp##_TOP_INT_CON0, \
.en_reg_shift = 0x6, \
.sta_reg = MT6359_##sp##_TOP_INT_STATUS0, \
.sta_reg_shift = 0x2, \
.top_offset = MT6359_##sp##_TOP, \
}

#endif /* __MFD_MT6359_CORE_H__ */
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