linux-kernel - Re: [PATCH v2] spmi: pmic-arb: Pass the correct of_node to irq_domain_add

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Date: Wed, 22 May 2024 22:36:59 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: Stephen Boyd <sboyd@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] spmi: pmic-arb: Pass the correct of_node to
 irq_domain_add_tree

On 24-05-22 20:08:17, Konrad Dybcio wrote:
> Currently, irqchips for all of the subnodes (which represent a given
> bus master) point to the parent wrapper node. This is no bueno, as
> no interrupts arrive, ever (because nothing references that node).
> 
> Fix that by passing a reference to the respective master's of_node.
> 
> Worth noting, this is a NOP for devices with only a single master
> described.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>

You forgot the fixes tag here as well.

LGTM otherwise.

Reviewed-by: Abel Vesa <abel.vesa@...aro.org>

> ---
> Changes in v2:
> - Un-delete the missing ampersand
> - Link to v1: https://lore.kernel.org/r/20240522-topic-spmi_multi_master_irqfix-v1-1-f7098b9c8804@linaro.org
> ---
>  drivers/spmi/spmi-pmic-arb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
> index 791cdc160c51..e6a4bf3abb1f 100644
> --- a/drivers/spmi/spmi-pmic-arb.c
> +++ b/drivers/spmi/spmi-pmic-arb.c
> @@ -1737,8 +1737,7 @@ static int spmi_pmic_arb_bus_init(struct platform_device *pdev,
>  
>  	dev_dbg(&pdev->dev, "adding irq domain for bus %d\n", bus_index);
>  
> -	bus->domain = irq_domain_add_tree(dev->of_node,
> -					  &pmic_arb_irq_domain_ops, bus);
> +	bus->domain = irq_domain_add_tree(node, &pmic_arb_irq_domain_ops, bus);
>  	if (!bus->domain) {
>  		dev_err(&pdev->dev, "unable to create irq_domain\n");
>  		return -ENOMEM;
> 
> ---
> base-commit: 8314289a8d50a4e05d8ece1ae0445a3b57bb4d3b
> change-id: 20240522-topic-spmi_multi_master_irqfix-f63ebf47b02c
> 
> Best regards,
> -- 
> Konrad Dybcio <konrad.dybcio@...aro.org>
>