linux-kernel - Re: [PATCH v2 1/5] mfd: axp20x: AXP717: Fix missing IRQ status registers range

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Date: Tue, 23 Apr 2024 10:16:03 +1000
From: John Watts <contact@...kia.org>
To: Andre Przywara <andre.przywara@....com>
Cc: Chen-Yu Tsai <wens@...e.org>, Lee Jones <lee@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-sunxi@...ts.linux.dev,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	Ryan Walklin <ryan@...ttoast.com>,
	Chris Morgan <macroalpha82@...il.com>
Subject: Re: [PATCH v2 1/5] mfd: axp20x: AXP717: Fix missing IRQ status
 registers range

On Thu, Apr 18, 2024 at 01:07:32AM +0100, Andre Przywara wrote:
> While we list the "IRQ status *and acknowledge*" registers as volatile,
> they are missing from the writable range array, so acknowledging any
> interrupts was met with an -EIO error.
> 
> Add the five registers that hold those bits to the writable array.

Hi,

This change looks good to me. Checked against the datasheet.

John.

Reviewed-by: John Watts <contact@...kia.org>

> 
> Fixes: b5bfc8ab2484 ("mfd: axp20x: Add support for AXP717 PMIC")
> Reported-by: Chris Morgan <macromorgan@...mail.com>
> Signed-off-by: Andre Przywara <andre.przywara@....com>
> ---
>  drivers/mfd/axp20x.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index 48ce6ea693cea..d8ad4e120d379 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -210,6 +210,7 @@ static const struct regmap_access_table axp313a_volatile_table = {
>  
>  static const struct regmap_range axp717_writeable_ranges[] = {
>  	regmap_reg_range(AXP717_IRQ0_EN, AXP717_IRQ4_EN),
> +	regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE),
>  	regmap_reg_range(AXP717_DCDC_OUTPUT_CONTROL, AXP717_CPUSLDO_CONTROL),
>  };
>  
> -- 
> 2.35.8
>