linux-kernel - Re: [PATCH] iio: adc: exynos: Simplify Exynos7-specific init

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Date:   Sat, 16 May 2020 17:37:55 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     "Alim Akhtar" <alim.akhtar@...sung.com>
Cc:     "'Krzysztof Kozlowski'" <krzk@...nel.org>,
        "'Hartmut Knaack'" <knaack.h@....de>,
        "'Lars-Peter Clausen'" <lars@...afoo.de>,
        "'Peter Meerwald-Stadler'" <pmeerw@...erw.net>,
        "'Kukjin Kim'" <kgene@...nel.org>, <linux-iio@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] iio: adc: exynos: Simplify Exynos7-specific init

On Mon, 11 May 2020 22:49:28 +0530
"Alim Akhtar" <alim.akhtar@...sung.com> wrote:

> Hello Krzysztof,
> Thanks for the patch.
> 
> > -----Original Message-----
> > From: Krzysztof Kozlowski <krzk@...nel.org>
> > Sent: 11 May 2020 14:04
> > To: Jonathan Cameron <jic23@...nel.org>; Hartmut Knaack
> > <knaack.h@....de>; Lars-Peter Clausen <lars@...afoo.de>; Peter Meerwald-
> > Stadler <pmeerw@...erw.net>; Kukjin Kim <kgene@...nel.org>; Krzysztof
> > Kozlowski <krzk@...nel.org>; linux-iio@...r.kernel.org; linux-arm-
> > kernel@...ts.infradead.org; linux-samsung-soc@...r.kernel.org; linux-
> > kernel@...r.kernel.org
> > Cc: Alim Akhtar <alim.akhtar@...sung.com>
> > Subject: [PATCH] iio: adc: exynos: Simplify Exynos7-specific init
> > 
> > The Exynos7-specific code bits in ADC driver do not play with PHY:
> > the field exynos_adc_data.needs_adc_phy is not set in exynos7_adc_data
> > instance.  Therefore the initialization code does not have to check if it  
> is true.
> > 
> > Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> >   
> Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
> Tested on exynos7-espresso board so,
> Tested-by:  Alim Akhtar <alim.akhtar@...sung.com>

Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.

Thanks,

Jonathan

> 
> > ---
> > 
> > Only build tested.
> > ---
> >  drivers/iio/adc/exynos_adc.c | 3 ---
> >  1 file changed, 3 deletions(-)
> > 
> > diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c  
> index
> > 22131a677445..219c8eb32d16 100644
> > --- a/drivers/iio/adc/exynos_adc.c
> > +++ b/drivers/iio/adc/exynos_adc.c
> > @@ -449,9 +449,6 @@ static void exynos_adc_exynos7_init_hw(struct
> > exynos_adc *info)  {
> >  	u32 con1, con2;
> > 
> > -	if (info->data->needs_adc_phy)
> > -		regmap_write(info->pmu_map, info->data->phy_offset, 1);
> > -
> >  	con1 = ADC_V2_CON1_SOFT_RESET;
> >  	writel(con1, ADC_V2_CON1(info->regs));
> > 
> > --
> > 2.17.1  
> 
>