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Date: Wed, 19 Nov 2014 16:37:02 +0000
From: Lee Jones <lee.jones@...aro.org>
To: Beomho Seo <beomho.seo@...sung.com>
Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
devicetree@...r.kernel.org, sameo@...ux.intel.com,
lee.jone@...aro.org, lgirdwood@...il.com, broonie@...nel.org,
sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org,
robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
cw00.choi@...sung.com, geunsik.lim@...sung.com,
inki.dae@...sung.com, sw0312.kim@...sung.com
Subject: Re: [PATCH v5 1/4] mfd: rt5033: Add Richtek RT5033 driver core.
On Wed, 19 Nov 2014, Beomho Seo wrote:
> This patch adds a new driver for Richtek RT5033 driver.
> RT5033 is a Multifunction device which includes battery charger, fuel gauge,
> flash LED current source, LDO and synchronous Buck converter. It is interfaced
> to host controller using I2C interface.
>
> Cc: Samuel Ortiz <sameo@...ux.intel.com>
> Cc: Lee Jones <lee.jone@...aro.org>
> Signed-off-by: Beomho Seo <beomho.seo@...sung.com>
> Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
> Changes in v5
> - Change possible built as a module.
> - Revise rt5033_dev mfd cell entry.
> - Fix incorrect typo.
> - Add module alias.
>
> Changes in v4
> - none.
>
> Changes in v3
> - Correct sentence errors.
> - Add author information the top of each drivers.
> - Remove unnecessary pre-initialise, struct member(rt5033->i2c) and blink.
> - Change some return check.
> - Use bool and of_match_ptr().
>
> Changes in v2
> - Remove volatile_reg callback. Because this driver not in use regmap cache.
> - Revmoe unnecessary subnode of_compatible.
> - Add define for set_high impedance mode of charger.
> ---
> drivers/mfd/Kconfig | 12 ++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rt5033.c | 136 +++++++++++++++++++
> include/linux/mfd/rt5033-private.h | 260 ++++++++++++++++++++++++++++++++++++
> include/linux/mfd/rt5033.h | 62 +++++++++
> 5 files changed, 471 insertions(+)
> create mode 100644 drivers/mfd/rt5033.c
> create mode 100644 include/linux/mfd/rt5033-private.h
> create mode 100644 include/linux/mfd/rt5033.h
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 72d3808..9c13170 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -618,6 +618,18 @@ config MFD_RTSX_PCI
> types of memory cards, such as Memory Stick, Memory Stick Pro,
> Secure Digital and MultiMediaCard.
>
> +config MFD_RT5033
> + tristate "Richtek RT5033 Power Management IC"
> + depends on I2C=y
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + This driver provides for the Richtek RT5033 Power Management IC,
> + which includes the I2C driver and the Core APIs. This driver provides
> + common support for accessing the device. The device supports multiple
> + sub-devices like charger, fuel gauge, flash LED, current source,
> + LDO and Buck.
> +
> config MFD_RTSX_USB
> tristate "Realtek USB card reader"
> depends on USB
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 53467e2..4059c24 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -176,6 +176,7 @@ obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
> obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o
> obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
> obj-$(CONFIG_MFD_DLN2) += dln2.o
> +obj-$(CONFIG_MFD_RT5033) += rt5033.o
>
> intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
> obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
> diff --git a/drivers/mfd/rt5033.c b/drivers/mfd/rt5033.c
> new file mode 100644
> index 0000000..4d289b9
> --- /dev/null
> +++ b/drivers/mfd/rt5033.c
> @@ -0,0 +1,136 @@
> +/*
> + * MFD core driver for the Richtek RT5033.
> + *
> + * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
> + * Author: Beomho Seo <beomho.seo@...sung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published bythe Free Software Foundation.
> + */
> +
> +#include <linux/err.h>
> +#include <linux/module.h>
> +#include <linux/interrupt.h>
> +#include <linux/of_device.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rt5033.h>
> +#include <linux/mfd/rt5033-private.h>
> +
> +static const struct regmap_irq rt5033_irqs[] = {
> + { .mask = RT5033_PMIC_IRQ_BUCKOCP, },
> + { .mask = RT5033_PMIC_IRQ_BUCKLV, },
> + { .mask = RT5033_PMIC_IRQ_SAFELDOLV, },
> + { .mask = RT5033_PMIC_IRQ_LDOLV, },
> + { .mask = RT5033_PMIC_IRQ_OT, },
> + { .mask = RT5033_PMIC_IRQ_VDDA_UV, },
> +};
> +
> +static const struct regmap_irq_chip rt5033_irq_chip = {
> + .name = "rt5033",
> + .status_base = RT5033_REG_PMIC_IRQ_STAT,
> + .mask_base = RT5033_REG_PMIC_IRQ_CTRL,
> + .mask_invert = true,
> + .num_regs = 1,
> + .irqs = rt5033_irqs,
> + .num_irqs = ARRAY_SIZE(rt5033_irqs),
> +};
> +
> +static const struct mfd_cell rt5033_devs[] = {
> + { .name = "rt5033-regulator", },
> + { .name = "rt5033-charger", .of_compatible = "richtek,rt5033-charger",},
> + { .name = "rt5033-battery", .of_compatible = "richtek,rt5033-battery",},
> +};
Perhaps I wasn't clear enough in my previous review -- sorry for
that. I only want to see the single entry on one line i.e. one with
.name, but no .of_compatible. I probably wouldn't have requested a
re-spin, but you have white space issues at the end of those two lines
too.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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