Hello Krzysztof,
On 06/09/2014 12:22 PM, Krzysztof Kozlowski wrote:
> On pon, 2014-06-09 at 11:37 +0200, Javier Martinez Canillas wrote:
>> Maxim MAX77802 is a power management chip that contains 10 high
>> efficiency Buck regulators, 32 Low-dropout (LDO) regulators used
>> to power up application processors and peripherals, a 2-channel
>> 32kHz clock outputs, a Real-Time-Clock (RTC) and a I2C interface
>> to program the individual regulators, clocks outputs and the RTC.
>>
>> This patch adds the core support for MAX77802 PMIC and is based
>> on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree.
>>
>> Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
>
> (...)
>
>
>> diff --git a/drivers/mfd/max77802-irq.c b/drivers/mfd/max77802-irq.c
>> new file mode 100644
>> index 0000000..38a8ce7
>> --- /dev/null
>> +++ b/drivers/mfd/max77802-irq.c
>> @@ -0,0 +1,332 @@
>> +/*
>> + * max77802-irq.c - Interrupt controller support for MAX77802
>> + *
>> + * Copyright (C) 2013-2014 Google, Inc
>> + *
>> + * Copyright (C) 2012 Samsung Electronics Co.Ltd
>> + * Chiwoong Byun <woong.byun@xxxxxxxxxxx>
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License as published by
>> + * the Free Software Foundation; either version 2 of the License, or
>> + * (at your option) any later version.
>> + *
>> + * This program is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> + * GNU General Public License for more details.
>> + *
>> + * This driver is based on max8997-irq.c
>> + */
>> +
>> +#include <linux/err.h>
>> +#include <linux/irq.h>
>> +#include <linux/interrupt.h>
>> +#include <linux/gpio.h>
>> +#include <linux/mfd/max77802.h>
>> +#include <linux/mfd/max77802-private.h>
>> +#include <linux/irqdomain.h>
>> +#include <linux/regmap.h>
>> +
>> +enum {
>> + MAX77802_DEBUG_IRQ_INFO = 1 << 0,
>> + MAX77802_DEBUG_IRQ_MASK = 1 << 1,
>> + MAX77802_DEBUG_IRQ_INT = 1 << 2,
>> +};
>> +
>> +static int debug_mask = 0;
>> +module_param(debug_mask, int, 0);
>> +MODULE_PARM_DESC(debug_mask, "Set debug_mask : 0x0=off 0x1=IRQ_INFO 0x2=IRQ_MASK 0x4=IRQ_INI)");
>> +
>> +static const u8 max77802_mask_reg[] = {
>> + [PMIC_INT1] = MAX77802_REG_INT1MSK,
>> + [PMIC_INT2] = MAX77802_REG_INT2MSK,
>> + [RTC_INT] = MAX77802_RTC_INTM,
>> +};
>> +
>> +struct max77802_irq_data {
>> + int mask;
>> + enum max77802_irq_source group;
>> +};
>> +
>> +#define DECLARE_IRQ(idx, _group, _mask) \
>> + [(idx)] = { .group = (_group), .mask = (_mask) }
>> +static const struct max77802_irq_data max77802_irqs[] = {
>> + DECLARE_IRQ(MAX77802_PMICIRQ_PWRONF, PMIC_INT1, 1 << 0),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_PWRONR, PMIC_INT1, 1 << 1),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_JIGONBF, PMIC_INT1, 1 << 2),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_JIGONBR, PMIC_INT1, 1 << 3),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_ACOKBF, PMIC_INT1, 1 << 4),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_ACOKBR, PMIC_INT1, 1 << 5),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_ONKEY1S, PMIC_INT1, 1 << 6),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_MRSTB, PMIC_INT1, 1 << 7),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_140C, PMIC_INT2, 1 << 0),
>> + DECLARE_IRQ(MAX77802_PMICIRQ_120C, PMIC_INT2, 1 << 1),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_RTC60S, RTC_INT, 1 << 0),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_RTCA1, RTC_INT, 1 << 1),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_RTCA2, RTC_INT, 1 << 2),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_SMPL, RTC_INT, 1 << 3),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_RTC1S, RTC_INT, 1 << 4),
>> + DECLARE_IRQ(MAX77802_RTCIRQ_WTSR, RTC_INT, 1 << 5),
>> +};
>
> Why just not use two regmap_irq_chips (for PMIC and RTC blocks)
> replacing whole max77802-irq.c file?
>
Great, I was not aware about regmap_irq_chip. I'll take a look to it for v2.
> Best regards,
> Krzysztof
>
>
Best regards,
Javier
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