linux-kernel - Re: [PATCH v3 07/10] mfd: da9063: Add custom IRQ map for DA9063L

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Date:   Tue, 5 Jun 2018 09:24:00 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Marek Vasut <marek.vasut@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Mark Brown <broonie@...nel.org>,
        Steve Twiss <stwiss.opensource@...semi.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v3 07/10] mfd: da9063: Add custom IRQ map for DA9063L

On Tue, 05 Jun 2018, Geert Uytterhoeven wrote:

> Hi Lee,
> 
> On Tue, Jun 5, 2018 at 9:47 AM, Lee Jones <lee.jones@...aro.org> wrote:
> > On Sat, 02 Jun 2018, Marek Vasut wrote:
> >> While the datasheet for DA9063L (2v1, 23-Mar-2017) lists the RTC register
> >> block, the DA9063L does not have an RTC. Add custom IRQ map for DA9063L to
> >> ignore the Alarm and Tick IRQs from the PMIC.
> >>
> >> Signed-off-by: Marek Vasut <marek.vasut+renesas@...il.com>
> 
> >> --- a/drivers/mfd/da9063-irq.c
> >> +++ b/drivers/mfd/da9063-irq.c
> >> @@ -74,8 +74,55 @@ static const struct regmap_irq_chip da9063_irq_chip = {
> >>       .init_ack_masked = true,
> >>  };
> >>
> >> +static const struct regmap_irq da9063l_irqs[] = {
> >> +     /* DA9063 event A register */
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_ONKEY, DA9063_REG_EVENT_A_OFFSET, DA9063_M_ONKEY),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_ADC_RDY, DA9063_REG_EVENT_A_OFFSET, DA9063_M_ADC_RDY),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_SEQ_RDY, DA9063_REG_EVENT_A_OFFSET, DA9063_M_SEQ_RDY),
> >> +     /* DA9063 event B register */
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_WAKE, DA9063_REG_EVENT_B_OFFSET, DA9063_M_WAKE),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_TEMP, DA9063_REG_EVENT_B_OFFSET, DA9063_M_TEMP),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_COMP_1V2, DA9063_REG_EVENT_B_OFFSET, DA9063_M_COMP_1V2),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_LDO_LIM, DA9063_REG_EVENT_B_OFFSET, DA9063_M_LDO_LIM),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_REG_UVOV, DA9063_REG_EVENT_B_OFFSET, DA9063_M_UVOV),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_DVC_RDY, DA9063_REG_EVENT_B_OFFSET, DA9063_M_DVC_RDY),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_VDD_MON, DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_MON),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_WARN, DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_WARN),
> >> +     /* DA9063 event C register */
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI0, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI0),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI1, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI1),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI2, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI2),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI3, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI3),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI4, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI4),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI5, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI5),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI6, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI6),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI7, DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI7),
> >> +     /* DA9063 event D register */
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI8, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI8),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI9, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI9),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI10, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI10),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI11, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI11),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI12, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI12),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI13, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI13),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI14, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI14),
> >> +     REGMAP_IRQ_REG(DA9063_IRQ_GPI15, DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI15),
> >> +};
> >
> > Same here.  Please make checkpatch.pl happen, even if it makes the
> > code slightly less readable.
> 
> I beg to disagree: source code should be optimized for reading.
> Checkpatch is a hinting tool, not an absolute check.

I agree with you to some degree, but as per the Coding Standards we
are to use max 80-chars unless it *significantly* reduces
readability.

Breaking lines into two on a natural break only *slightly* reduces
readability, if at all to be frank.

We have MACROS which encompass many arguments and we have to draw the
line somewhere.  I choose 80-chars.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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