linux-kernel - Re: [PATCH v3 4/5] irqchip: ocelot: Add support for Serval platforms

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Date:   Wed, 18 Nov 2020 11:46:28 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Gregory CLEMENT <gregory.clement@...tlin.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen.Hegelund@...rochip.com
Subject: Re: [PATCH v3 4/5] irqchip: ocelot: Add support for Serval platforms

On 16/11/2020 17:24:26+0100, Gregory CLEMENT wrote:
> This patch extends irqchip driver for ocelot to be used with an other
> vcoreiii base platform: Serval.
> 
> Based on a larger patch from Lars Povlsen <lars.povlsen@...rochip.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement@...tlin.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

> ---
>  drivers/irqchip/irq-mscc-ocelot.c | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/drivers/irqchip/irq-mscc-ocelot.c b/drivers/irqchip/irq-mscc-ocelot.c
> index 9964800c53c2..584af3b0a9e2 100644
> --- a/drivers/irqchip/irq-mscc-ocelot.c
> +++ b/drivers/irqchip/irq-mscc-ocelot.c
> @@ -44,6 +44,18 @@ static const struct chip_props ocelot_props = {
>  	.n_irq			= 24,
>  };
>  
> +static const struct chip_props serval_props = {
> +	.flags			= FLAGS_HAS_TRIGGER,
> +	.reg_off_sticky		= 0xc,
> +	.reg_off_ena		= 0x14,
> +	.reg_off_ena_clr	= 0x18,
> +	.reg_off_ena_set	= 0x1c,
> +	.reg_off_ident		= 0x20,
> +	.reg_off_trigger	= 0x4,
> +	.reg_off_force		= 0x8,
> +	.n_irq			= 24,
> +};
> +
>  static const struct chip_props luton_props = {
>  	.flags			= FLAGS_NEED_INIT_ENABLE |
>  				  FLAGS_FORCE_LUTON_STYLE,
> @@ -210,6 +222,14 @@ static int __init ocelot_irq_init(struct device_node *node,
>  
>  IRQCHIP_DECLARE(ocelot_icpu, "mscc,ocelot-icpu-intr", ocelot_irq_init);
>  
> +static int __init serval_irq_init(struct device_node *node,
> +				  struct device_node *parent)
> +{
> +	return vcoreiii_irq_init(node, parent, &serval_props);
> +}
> +
> +IRQCHIP_DECLARE(serval_icpu, "mscc,serval-icpu-intr", serval_irq_init);
> +
>  static int __init luton_irq_init(struct device_node *node,
>  				 struct device_node *parent)
>  {
> -- 
> 2.29.2
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com