Re: [PATCH] drm/exynos: move to use request_irq by IRQF_NO_AUTOEN flag

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On Fri, Mar 12, 2021 at 07:43:05PM +0800, Tian Tao wrote:
> After this patch cbe16f35bee68 genirq: Add IRQF_NO_AUTOEN for
> request_irq/nmi() is merged. request_irq() after setting
> IRQ_NOAUTOEN as below
> 
> irq_set_status_flags(irq, IRQ_NOAUTOEN);
> request_irq(dev, irq...);
> can be replaced by request_irq() with IRQF_NO_AUTOEN flag.
> 
> Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx>

To get all your nice cleanups land faster I strongly recommend you review
other people's small patches. And then ask them to review yours in return.
You have already drm-misc commit rights, so should be all ready to go and
do lots of great stuff!

Cheers, Daniel

> ---
>  drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 4 ++--
>  drivers/gpu/drm/exynos/exynos_drm_dsi.c       | 7 +++----
>  2 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> index 1f79bc2..f530aff 100644
> --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> @@ -775,8 +775,8 @@ static int decon_conf_irq(struct decon_context *ctx, const char *name,
>  			return irq;
>  		}
>  	}
> -	irq_set_status_flags(irq, IRQ_NOAUTOEN);
> -	ret = devm_request_irq(ctx->dev, irq, handler, flags, "drm_decon", ctx);
> +	ret = devm_request_irq(ctx->dev, irq, handler,
> +			       flags | IRQ_NOAUTOEN, "drm_decon", ctx);
>  	if (ret < 0) {
>  		dev_err(ctx->dev, "IRQ %s request failed\n", name);
>  		return ret;
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> index 83ab6b3..fd9b133b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> @@ -1352,10 +1352,9 @@ static int exynos_dsi_register_te_irq(struct exynos_dsi *dsi,
>  	}
>  
>  	te_gpio_irq = gpio_to_irq(dsi->te_gpio);
> -	irq_set_status_flags(te_gpio_irq, IRQ_NOAUTOEN);
>  
>  	ret = request_threaded_irq(te_gpio_irq, exynos_dsi_te_irq_handler, NULL,
> -					IRQF_TRIGGER_RISING, "TE", dsi);
> +				   IRQF_TRIGGER_RISING | IRQ_NOAUTOEN, "TE", dsi);
>  	if (ret) {
>  		dev_err(dsi->dev, "request interrupt failed with %d\n", ret);
>  		gpio_free(dsi->te_gpio);
> @@ -1802,9 +1801,9 @@ static int exynos_dsi_probe(struct platform_device *pdev)
>  	if (dsi->irq < 0)
>  		return dsi->irq;
>  
> -	irq_set_status_flags(dsi->irq, IRQ_NOAUTOEN);
>  	ret = devm_request_threaded_irq(dev, dsi->irq, NULL,
> -					exynos_dsi_irq, IRQF_ONESHOT,
> +					exynos_dsi_irq,
> +					IRQF_ONESHOT | IRQ_NOAUTOEN,
>  					dev_name(dev), dsi);
>  	if (ret) {
>  		dev_err(dev, "failed to request dsi irq\n");
> -- 
> 2.7.4
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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