Re: [PATCH v5 3/3] mfd: mt6397: Add support for MT6392 pmic

From: Fabien Parent
Date: Mon Oct 12 2020 - 07:32:26 EST

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On Tue, Sep 8, 2020 at 3:53 PM Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>
> On Mon, 07 Sep 2020, Fabien Parent wrote:
>
> > Update the MT6397 MFD driver to support the MT6392 PMIC.
> >
> > Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
> > ---
> >
> > V5:
> > * Rebased
> > * removed mt6392-regulator compatible. This will be send in another
> > series to make this series easier to merge.
> >
> > V4:
> > * Use DEFINE_RES_* macro to define RTC ressources.
> > * Use PLATFORM_DEVID_NONE instead of -1 value when registering devices.
> >
> > V3:
> > * No change
> >
> > V2:
> > * Pass IRQ comain to fix invalid MFD devices IRQs.
> > * Remove resources and mfd cells for device we don't support.
> > * Rename IRQ names to follow what's done for MT6397.
> >
> > ---
>
> You shouldn't need to add your own '---' marker.
>
> Just place the changelog under the existing one.
>
> > drivers/mfd/mt6397-core.c | 40 +++
> > drivers/mfd/mt6397-irq.c | 9 +
> > include/linux/mfd/mt6392/core.h | 42 +++
> > include/linux/mfd/mt6392/registers.h | 487 +++++++++++++++++++++++++++
> > include/linux/mfd/mt6397/core.h | 1 +
> > 5 files changed, 579 insertions(+)
> > create mode 100644 include/linux/mfd/mt6392/core.h
> > create mode 100644 include/linux/mfd/mt6392/registers.h
> >
> > diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
> > index f6cd8a660602..6ba3585b1b36 100644
> > --- a/drivers/mfd/mt6397-core.c
> > +++ b/drivers/mfd/mt6397-core.c
> > @@ -13,9 +13,11 @@
> > #include <linux/mfd/core.h>
> > #include <linux/mfd/mt6323/core.h>
> > #include <linux/mfd/mt6358/core.h>
> > +#include <linux/mfd/mt6392/core.h>
> > #include <linux/mfd/mt6397/core.h>
> > #include <linux/mfd/mt6323/registers.h>
> > #include <linux/mfd/mt6358/registers.h>
> > +#include <linux/mfd/mt6392/registers.h>
> > #include <linux/mfd/mt6397/registers.h>
> >
> > #define MT6323_RTC_BASE 0x8000
> > @@ -27,6 +29,9 @@
> > #define MT6397_RTC_BASE 0xe000
> > #define MT6397_RTC_SIZE 0x3e
> >
> > +#define MT6392_RTC_BASE 0x8000
> > +#define MT6392_RTC_SIZE 0x3e
> > +
>
> Nit: Why aren't these (all) in the header files above?

Not sure, I just followed what people did previously here.

>
> > #define MT6323_PWRC_BASE 0x8000
> > #define MT6323_PWRC_SIZE 0x40
> >
> > @@ -40,6 +45,11 @@ static const struct resource mt6358_rtc_resources[] = {
> > DEFINE_RES_IRQ(MT6358_IRQ_RTC),
> > };
> >
> > +static const struct resource mt6392_rtc_resources[] = {
> > + DEFINE_RES_MEM(MT6392_RTC_BASE, MT6392_RTC_SIZE),
> > + DEFINE_RES_IRQ(MT6392_IRQ_RTC),
> > +};
> > +
> > static const struct resource mt6397_rtc_resources[] = {
> > DEFINE_RES_MEM(MT6397_RTC_BASE, MT6397_RTC_SIZE),
> > DEFINE_RES_IRQ(MT6397_IRQ_RTC),
> > @@ -50,6 +60,11 @@ static const struct resource mt6323_keys_resources[] = {
> > DEFINE_RES_IRQ(MT6323_IRQ_STATUS_FCHRKEY),
> > };
> >
> > +static const struct resource mt6392_keys_resources[] = {
> > + DEFINE_RES_IRQ(MT6392_IRQ_PWRKEY),
> > + DEFINE_RES_IRQ(MT6392_IRQ_FCHRKEY),
> > +};
> > +
> > static const struct resource mt6397_keys_resources[] = {
> > DEFINE_RES_IRQ(MT6397_IRQ_PWRKEY),
> > DEFINE_RES_IRQ(MT6397_IRQ_HOMEKEY),
> > @@ -99,6 +114,20 @@ static const struct mfd_cell mt6358_devs[] = {
> > },
> > };
> >
> > +static const struct mfd_cell mt6392_devs[] = {
> > + {
> > + .name = "mt6397-rtc",
> > + .num_resources = ARRAY_SIZE(mt6392_rtc_resources),
> > + .resources = mt6392_rtc_resources,
> > + .of_compatible = "mediatek,mt6392-rtc",
> > + }, {
> > + .name = "mtk-pmic-keys",
> > + .num_resources = ARRAY_SIZE(mt6392_keys_resources),
> > + .resources = mt6392_keys_resources,
> > + .of_compatible = "mediatek,mt6392-keys"
> > + },
> > +};
> > +
> > static const struct mfd_cell mt6397_devs[] = {
> > {
> > .name = "mt6397-rtc",
> > @@ -149,6 +178,14 @@ static const struct chip_data mt6358_core = {
> > .irq_init = mt6358_irq_init,
> > };
> >
> > +static const struct chip_data mt6392_core = {
> > + .cid_addr = MT6392_CID,
> > + .cid_shift = 0,
> > + .cells = mt6392_devs,
> > + .cell_size = ARRAY_SIZE(mt6392_devs),
> > + .irq_init = mt6397_irq_init,
> > +};
> > +
> > static const struct chip_data mt6397_core = {
> > .cid_addr = MT6397_CID,
> > .cid_shift = 0,
> > @@ -218,6 +255,9 @@ static const struct of_device_id mt6397_of_match[] = {
> > }, {
> > .compatible = "mediatek,mt6358",
> > .data = &mt6358_core,
> > + }, {
> > + .compatible = "mediatek,mt6392",
> > + .data = &mt6392_core,
> > }, {
> > .compatible = "mediatek,mt6397",
> > .data = &mt6397_core,
> > diff --git a/drivers/mfd/mt6397-irq.c b/drivers/mfd/mt6397-irq.c
> > index 2924919da991..9bf95e2ddf02 100644
> > --- a/drivers/mfd/mt6397-irq.c
> > +++ b/drivers/mfd/mt6397-irq.c
> > @@ -12,6 +12,8 @@
> > #include <linux/suspend.h>
> > #include <linux/mfd/mt6323/core.h>
> > #include <linux/mfd/mt6323/registers.h>
> > +#include <linux/mfd/mt6392/core.h>
> > +#include <linux/mfd/mt6392/registers.h>
> > #include <linux/mfd/mt6397/core.h>
> > #include <linux/mfd/mt6397/registers.h>
> >
> > @@ -181,6 +183,13 @@ int mt6397_irq_init(struct mt6397_chip *chip)
> > chip->int_status[1] = MT6397_INT_STATUS1;
> > break;
> >
> > + case MT6392_CHIP_ID:
> > + chip->int_con[0] = MT6392_INT_CON0;
> > + chip->int_con[1] = MT6392_INT_CON1;
> > + chip->int_status[0] = MT6392_INT_STATUS0;
> > + chip->int_status[1] = MT6392_INT_STATUS1;
> > + break;
> > +
>
> Nit: These line breaks seem superfluous.
>
> > default:
> > dev_err(chip->dev, "unsupported chip: 0x%x\n", chip->chip_id);
> > return -ENODEV;
> > diff --git a/include/linux/mfd/mt6392/core.h b/include/linux/mfd/mt6392/core.h
> > new file mode 100644
> > index 000000000000..7575a79ea052
> > --- /dev/null
> > +++ b/include/linux/mfd/mt6392/core.h
> > @@ -0,0 +1,42 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2019 MediaTek Inc.
>
> This is out of date.
>
> > + * Author: Chen Zhong <chen.zhong@xxxxxxxxxxxx>
> > + */
> > +
> > +#ifndef __MFD_MT6392_CORE_H__
> > +#define __MFD_MT6392_CORE_H__
> > +
> > +enum MT6392_IRQ_numbers {
> > + MT6392_IRQ_SPKL_AB = 0,
> > + MT6392_IRQ_SPKL,
> > + MT6392_IRQ_BAT_L,
> > + MT6392_IRQ_BAT_H,
> > + MT6392_IRQ_WATCHDOG,
> > + MT6392_IRQ_PWRKEY,
> > + MT6392_IRQ_THR_L,
> > + MT6392_IRQ_THR_H,
> > + MT6392_IRQ_VBATON_UNDET,
> > + MT6392_IRQ_BVALID_DET,
> > + MT6392_IRQ_CHRDET,
> > + MT6392_IRQ_OV,
> > + MT6392_IRQ_LDO = 16,
> > + MT6392_IRQ_FCHRKEY,
> > + MT6392_IRQ_RELEASE_PWRKEY,
> > + MT6392_IRQ_RELEASE_FCHRKEY,
> > + MT6392_IRQ_RTC,
> > + MT6392_IRQ_VPROC,
> > + MT6392_IRQ_VSYS,
> > + MT6392_IRQ_VCORE,
> > + MT6392_IRQ_TYPE_C_CC,
> > + MT6392_IRQ_TYPEC_H_MAX,
> > + MT6392_IRQ_TYPEC_H_MIN,
> > + MT6392_IRQ_TYPEC_L_MAX,
> > + MT6392_IRQ_TYPEC_L_MIN,
> > + MT6392_IRQ_THR_MAX,
> > + MT6392_IRQ_THR_MIN,
> > + MT6392_IRQ_NAG_C_DLTV,
> > + MT6392_IRQ_NR,
> > +};
> > +
> > +#endif /* __MFD_MT6392_CORE_H__ */
> > diff --git a/include/linux/mfd/mt6392/registers.h b/include/linux/mfd/mt6392/registers.h
> > new file mode 100644
> > index 000000000000..8858b58e3b67
> > --- /dev/null
> > +++ b/include/linux/mfd/mt6392/registers.h
> > @@ -0,0 +1,487 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2019 MediaTek Inc.
>
> This is out of date.
>
> > + * Author: Chen Zhong <chen.zhong@xxxxxxxxxxxx>
> > + */
> > +
> > +#ifndef __MFD_MT6392_REGISTERS_H__
> > +#define __MFD_MT6392_REGISTERS_H__
>
> --
> Lee Jones [李琼斯]
> Senior Technical Lead - Developer Services
> Linaro.org │ Open source software for Arm SoCs
> Follow Linaro: Facebook | Twitter | Blog

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