linux-kernel - Re: [PATCH] drm/v3d: Use platform_get_irq

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Message-ID: <CADaigPWN9fJS2YB3Ly3bBTj8ur=F8_Li+hBzbDuSN0ig3mOiiA@mail.gmail.com>
Date:   Fri, 17 Jul 2020 09:54:00 -0700
From:   Eric Anholt <eric@...olt.net>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Cc:     Dave Emett <david.emett@...adcom.com>,
        linux-rpi-kernel@...ts.infradead.org,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/v3d: Use platform_get_irq_optional() to get optional IRQs

On Thu, Jul 16, 2020 at 7:51 AM Nicolas Saenz Julienne
<nsaenzjulienne@...e.de> wrote:
>
> Aside from being more correct, the non optional version of the function
> prints an error when failing to find the IRQ.
>
> Fixes: eea9b97b4504 ("drm/v3d: Add support for V3D v4.2")
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> ---
>  drivers/gpu/drm/v3d/v3d_irq.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> index c88686489b88..0be2eb7876be 100644
> --- a/drivers/gpu/drm/v3d/v3d_irq.c
> +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> @@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
>                 V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
>         V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
>
> -       irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
> +       irq1 = platform_get_irq_optional(v3d_to_pdev(v3d), 1);
>         if (irq1 == -EPROBE_DEFER)
>                 return irq1;
>         if (irq1 > 0) {
> --

Reviewed-by: Eric Anholt <eric@...olt.net>