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From: Andre Przywara <andre.przywara@arm.com>
To: Jonathan Cameron <jic23@kernel.org>,
	Michal Piekos <michal.piekos@mmpsystems.pl>
Cc: "David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Chen-Yu Tsai" <wens@kernel.org>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Samuel Holland" <samuel@sholland.org>,
	"Maksim Kiselev" <bigunclemax@gmail.com>,
	linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] iio: adc: sun20i-gpadc: add A523 gpadc support
Date: Tue, 12 May 2026 15:48:05 +0200	[thread overview]
Message-ID: <7e073ece-4fd6-4c36-ac2f-7604ccd38fff@arm.com> (raw)
In-Reply-To: <20260512125106.718d48d9@jic23-huawei>

Hi,

On 5/12/26 13:51, Jonathan Cameron wrote:
> On Sun, 10 May 2026 14:57:23 +0200
> Michal Piekos <michal.piekos@mmpsystems.pl> wrote:
> 
>> A523 differs from existing sun20i-gpadc-iio by having two clocks; bus
>> clock and module clock.
>>
>> Change driver to enable all clocks.
>>
>> Signed-off-by: Michal Piekos <michal.piekos@mmpsystems.pl>
> I'm expecting this to change given comment on not being quite compatible so
> I'll wait for v2 before reviewing.

Yes, we need a v2, but just for adding the new compatible string. 
Otherwise I think this patch is a neat solution, because we don't need 
to further differentiate between the different SoC's number of required 
clocks.

Cheers,
Andre

> 
> Thanks,
> 
> Jonathan
> 
>> ---
>>   drivers/iio/adc/sun20i-gpadc-iio.c | 8 ++++----
>>   1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/iio/adc/sun20i-gpadc-iio.c b/drivers/iio/adc/sun20i-gpadc-iio.c
>> index 861c14da75ad..dd4c7e6e3d76 100644
>> --- a/drivers/iio/adc/sun20i-gpadc-iio.c
>> +++ b/drivers/iio/adc/sun20i-gpadc-iio.c
>> @@ -180,7 +180,7 @@ static int sun20i_gpadc_probe(struct platform_device *pdev)
>>   	struct iio_dev *indio_dev;
>>   	struct sun20i_gpadc_iio *info;
>>   	struct reset_control *rst;
>> -	struct clk *clk;
>> +	struct clk_bulk_data *clks;
>>   	int irq;
>>   	int ret;
>>   
>> @@ -205,9 +205,9 @@ static int sun20i_gpadc_probe(struct platform_device *pdev)
>>   	if (IS_ERR(info->regs))
>>   		return PTR_ERR(info->regs);
>>   
>> -	clk = devm_clk_get_enabled(dev, NULL);
>> -	if (IS_ERR(clk))
>> -		return dev_err_probe(dev, PTR_ERR(clk), "failed to enable bus clock\n");
>> +	ret = devm_clk_bulk_get_all_enabled(dev, &clks);
>> +	if (ret < 0)
>> +		return dev_err_probe(dev, ret, "failed to enable clocks\n");
>>   
>>   	rst = devm_reset_control_get_exclusive(dev, NULL);
>>   	if (IS_ERR(rst))
>>
> 
> 


  reply	other threads:[~2026-05-12 13:48 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-10 12:57 [PATCH 0/3] Add GPADC support for A523 Michal Piekos
2026-05-10 12:57 ` [PATCH 1/3] dt-bindings: iio: adc: Add GPADC for Allwinner A523 Michal Piekos
2026-05-10 14:29   ` Rob Herring (Arm)
2026-05-10 14:40   ` Jernej Škrabec
2026-05-11 16:02   ` Andre Przywara
2026-05-12  3:56     ` Michal Piekos
2026-05-10 12:57 ` [PATCH 2/3] iio: adc: sun20i-gpadc: add A523 gpadc support Michal Piekos
2026-05-12 11:51   ` Jonathan Cameron
2026-05-12 13:48     ` Andre Przywara [this message]
2026-05-10 12:57 ` [PATCH 3/3] arm64: dts: allwinner: a523: add gpadc node Michal Piekos
2026-05-10 14:39   ` Jernej Škrabec
2026-05-10 18:34   ` Chen-Yu Tsai

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