Re: [PATCH] drm/meson: Convert to Linux IRQ interfaces

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Hi,

Le 06/07/2021 à 09:45, Thomas Zimmermann a écrit :
> Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's
> IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers
> don't benefit from using it.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> ---
>  drivers/gpu/drm/meson/meson_drv.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
> index 3d0ccc7eef1b..bc0d60df04ae 100644
> --- a/drivers/gpu/drm/meson/meson_drv.c
> +++ b/drivers/gpu/drm/meson/meson_drv.c
> @@ -21,7 +21,6 @@
>  #include <drm/drm_fb_helper.h>
>  #include <drm/drm_gem_cma_helper.h>
>  #include <drm/drm_gem_framebuffer_helper.h>
> -#include <drm/drm_irq.h>
>  #include <drm/drm_modeset_helper_vtables.h>
>  #include <drm/drm_probe_helper.h>
>  #include <drm/drm_vblank.h>
> @@ -94,9 +93,6 @@ DEFINE_DRM_GEM_CMA_FOPS(fops);
>  static const struct drm_driver meson_driver = {
>  	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
>  
> -	/* IRQ */
> -	.irq_handler		= meson_irq,
> -
>  	/* CMA Ops */
>  	DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(meson_dumb_create),
>  
> @@ -335,7 +331,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>  	if (ret)
>  		goto free_drm;
>  
> -	ret = drm_irq_install(drm, priv->vsync_irq);
> +	ret = request_irq(priv->vsync_irq, meson_irq, 0, drm->driver->name, drm);
>  	if (ret)
>  		goto free_drm;
>  
> @@ -354,7 +350,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
>  	return 0;
>  
>  uninstall_irq:
> -	drm_irq_uninstall(drm);
> +	free_irq(priv->vsync_irq, drm);
>  free_drm:
>  	drm_dev_put(drm);
>  
> @@ -382,7 +378,7 @@ static void meson_drv_unbind(struct device *dev)
>  	drm_kms_helper_poll_fini(drm);
>  	drm_atomic_helper_shutdown(drm);
>  	component_unbind_all(dev, drm);
> -	drm_irq_uninstall(drm);
> +	free_irq(priv->vsync_irq, drm);
>  	drm_dev_put(drm);
>  
>  	if (priv->afbcd.ops) {
> 

Looks good !

Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>

Thanks,
Neil



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