| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <62cdd2d18839e16686f35f0cf08080e2cb3b1768.camel@fi.rohmeurope.com>
Date: Fri, 28 May 2021 12:47:21 +0300
From: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To: Gene Chen <gene.chen.richtek@...il.com>, sre@...nel.org,
matthias.bgg@...il.com
Cc: broonie@...nel.org, robh+dt@...nel.org, devicetree@...r.kernel.org,
inux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
rdunlap@...radead.org, gene_chen@...htek.com,
Wilma.Wu@...iatek.com, shufan_lee@...htek.com,
cy_huang@...htek.com, benjamin.chao@...iatek.com
Subject: Re: [PATCH v5 3/3] power: supply: mt6360_charger: add MT6360
charger support
On Fri, 2021-05-28 at 16:13 +0800, Gene Chen wrote:
> From: Gene Chen <gene_chen@...htek.com>
>
> Add basic support for the battery charger for MT6360 PMIC
>
> Signed-off-by: Gene Chen <gene_chen@...htek.com>
> ---
> drivers/power/supply/Kconfig | 11 +
> drivers/power/supply/Makefile | 1 +
> drivers/power/supply/mt6360_charger.c | 856
> ++++++++++++++++++++++++++
> 3 files changed, 868 insertions(+)
> create mode 100644 drivers/power/supply/mt6360_charger.c
>
> diff --git a/drivers/power/supply/Kconfig
> b/drivers/power/supply/Kconfig
> index e696364126f1..3257b1ad5e36 100644
> --- a/drivers/power/supply/Kconfig
> +++ b/drivers/power/supply/Kconfig
> @@ -577,6 +577,17 @@ config CHARGER_MP2629
> Battery charger. This driver provides Battery charger power
> management
> functions on the systems.
>
> +config CHARGER_MT6360
> + tristate "Mediatek MT6360 Charger Driver"
> + depends on MFD_MT6360
> + depends on REGULATOR
> + select LINEAR_RANGES
> + help
> + Say Y here to enable MT6360 Charger Part.
> + The device supports High-Accuracy Voltage/Current Regulation,
> + Average Input Current Regulation, Battery Tempature Sensing,
> + Over-Temperature Protection, DPDM Detection for BC1.2
> +
> config CHARGER_QCOM_SMBB
> tristate "Qualcomm Switch-Mode Battery Charger and Boost"
> depends on MFD_SPMI_PMIC || COMPILE_TEST
> diff --git a/drivers/power/supply/Makefile
> b/drivers/power/supply/Makefile
> index a7309a3d1a47..5317fe787149 100644
> --- a/drivers/power/supply/Makefile
> +++ b/drivers/power/supply/Makefile
> @@ -78,6 +78,7 @@ obj-$(CONFIG_CHARGER_MAX77693) +=
> max77693_charger.o
> obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
> obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
> obj-$(CONFIG_CHARGER_MP2629) += mp2629_charger.o
> +obj-$(CONFIG_CHARGER_MT6360) += mt6360_charger.o
> obj-$(CONFIG_CHARGER_QCOM_SMBB) += qcom_smbb.o
> obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o
> obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o
> diff --git a/drivers/power/supply/mt6360_charger.c
> b/drivers/power/supply/mt6360_charger.c
> new file mode 100644
> index 000000000000..07fa0b3870e0
> --- /dev/null
> +++ b/drivers/power/supply/mt6360_charger.c
> @@ -0,0 +1,856 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2021 MediaTek Inc.
> + */
> +
> +#include <linux/init.h>
> +#include <linux/interrupt.h>
> +#include <linux/kernel.h>
> +#include <linux/linear_range.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/power_supply.h>
> +#include <linux/property.h>
> +#include <linux/regmap.h>
> +#include <linux/regulator/driver.h>
> +
> +#define MT6360_PMU_CHG_CTRL1 0x311
> +#define MT6360_PMU_CHG_CTRL2 0x312
> +#define MT6360_PMU_CHG_CTRL3 0x313
> +#define MT6360_PMU_CHG_CTRL4 0x314
> +#define MT6360_PMU_CHG_CTRL5 0x315
> +#define MT6360_PMU_CHG_CTRL6 0x316
> +#define MT6360_PMU_CHG_CTRL7 0x317
> +#define MT6360_PMU_CHG_CTRL8 0x318
> +#define MT6360_PMU_CHG_CTRL9 0x319
> +#define MT6360_PMU_CHG_CTRL10 0x31A
> +#define MT6360_PMU_DEVICE_TYPE 0x322
> +#define MT6360_PMU_USB_STATUS1 0x327
> +#define MT6360_PMU_CHG_STAT 0x34A
> +#define MT6360_PMU_CHG_CTRL19 0x361
> +#define MT6360_PMU_FOD_STAT 0x3E7
> +
> +/* MT6360_PMU_CHG_CTRL1 */
> +#define MT6360_FSLP_SHFT (3)
> +#define MT6360_FSLP_MASK BIT(MT6360_FSLP_SHFT)
> +#define MT6360_OPA_MODE_SHFT (0)
> +#define MT6360_OPA_MODE_MASK BIT(MT6360_OPA_MODE_SHFT)
> +/* MT6360_PMU_CHG_CTRL2 */
> +#define MT6360_IINLMTSEL_SHFT (2)
> +#define MT6360_IINLMTSEL_MASK GENMASK(3, 2)
> +/* MT6360_PMU_CHG_CTRL3 */
> +#define MT6360_IAICR_SHFT (2)
> +#define MT6360_IAICR_MASK GENMASK(7, 2)
> +#define MT6360_ILIM_EN_MASK BIT(0)
> +/* MT6360_PMU_CHG_CTRL4 */
> +#define MT6360_VOREG_SHFT (1)
> +#define MT6360_VOREG_MASK GENMASK(7, 1)
> +/* MT6360_PMU_CHG_CTRL5 */
> +#define MT6360_VOBST_MASK GENMASK(7, 2)
> +/* MT6360_PMU_CHG_CTRL6 */
> +#define MT6360_VMIVR_SHFT (1)
> +#define MT6360_VMIVR_MASK GENMASK(7, 1)
> +/* MT6360_PMU_CHG_CTRL7 */
> +#define MT6360_ICHG_SHFT (2)
> +#define MT6360_ICHG_MASK GENMASK(7, 2)
> +/* MT6360_PMU_CHG_CTRL8 */
> +#define MT6360_IPREC_SHFT (0)
> +#define MT6360_IPREC_MASK GENMASK(3, 0)
> +/* MT6360_PMU_CHG_CTRL9 */
> +#define MT6360_IEOC_SHFT (4)
> +#define MT6360_IEOC_MASK GENMASK(7, 4)
> +/* MT6360_PMU_CHG_CTRL10 */
> +#define MT6360_OTG_OC_MASK GENMASK(3, 0)
> +/* MT6360_PMU_DEVICE_TYPE */
> +#define MT6360_USBCHGEN_MASK BIT(7)
> +/* MT6360_PMU_USB_STATUS1 */
> +#define MT6360_USB_STATUS_SHFT (4)
> +#define MT6360_USB_STATUS_MASK GENMASK(6, 4)
> +/* MT6360_PMU_CHG_STAT */
> +#define MT6360_CHG_STAT_SHFT (6)
> +#define MT6360_CHG_STAT_MASK GENMASK(7, 6)
> +#define MT6360_VBAT_LVL_MASK BIT(5)
> +/* MT6360_PMU_CHG_CTRL19 */
> +#define MT6360_VINOVP_SHFT (5)
> +#define MT6360_VINOVP_MASK GENMASK(6, 5)
> +/* MT6360_PMU_FOD_STAT */
> +#define MT6360_CHRDET_EXT_MASK BIT(4)
> +
> +enum {
> + MT6360_RANGE_VMIVR,
> + MT6360_RANGE_ICHG,
> + MT6360_RANGE_VOREG,
> + MT6360_RANGE_AICR,
> + MT6360_RANGE_IPREC,
> + MT6360_RANGE_IEOC,
> + MT6360_RANGE_MAX,
> +};
> +
> +#define MT6360_LINEAR_RANGE(idx, _min, _min_sel, _max_sel, _step)
> \
> + [idx] = { \
> + .min = _min,
> \
> + .min_sel = _min_sel,
> \
> + .max_sel = _max_sel,
> \
> + .step = _step,
> \
> + }
>
Do you think REGULATOR_LINEAR_RANGE() would fit this? Or is the naming
a problem there? (Just a minor thing, no need to re-spin for this)
//snip
> +static int mt6360_charger_probe(struct platform_device *pdev)
> +{
> + struct mt6360_chg_info *mci;
> + struct power_supply_config charger_cfg = {};
> + struct regulator_config config = { };
> + int ret;
> +
> + mci = devm_kzalloc(&pdev->dev, sizeof(*mci), GFP_KERNEL);
> + if (!mci)
> + return -ENOMEM;
> +
> + mci->dev = &pdev->dev;
> + mci->vinovp = 6500000;
> + mutex_init(&mci->chgdet_lock);
> + platform_set_drvdata(pdev, mci);
> + INIT_WORK(&mci->chrdet_work, &mt6360_chrdet_work);
//snip
> +
> +static int mt6360_charger_remove(struct platform_device *pdev)
> +{
> + struct mt6360_chg_info *mci = platform_get_drvdata(pdev);
> +
> + cancel_work_sync(&mci->chrdet_work);
> +
> + return 0;
> +}
Just as a note, devm_work_autocancel() should hopefully be included at
next cycle. Then you might be able to drop the .remove().
FWIW:
Reviewed-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Best Regards
Matti Vaittinen
Powered by blists - more mailing lists