linux-kernel - Re: [PATCH] drm/hisilicon: Use simple encoder

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Date:   Mon, 4 Jan 2021 13:06:25 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Tian Tao <tiantao6@...ilicon.com>, airlied@...ux.ie,
        daniel@...ll.ch, kraxel@...hat.com, alexander.deucher@....com,
        tglx@...utronix.de, dri-devel@...ts.freedesktop.org,
        xinliang.liu@...aro.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/hisilicon: Use simple encoder

Hi

Am 28.12.20 um 08:35 schrieb Tian Tao:
> The hibmc driver uses empty implementations for its encoders. Replace
> the code with the generic simple encoder.
> 
> Signed-off-by: Tian Tao <tiantao6@...ilicon.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>

Thanks for the patch.

> ---
>   drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 8 ++------
>   1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> index d35548d..c76f996 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
> @@ -14,6 +14,7 @@
>   #include <drm/drm_atomic_helper.h>
>   #include <drm/drm_probe_helper.h>
>   #include <drm/drm_print.h>
> +#include <drm/drm_simple_kms_helper.h>
>   
>   #include "hibmc_drm_drv.h"
>   #include "hibmc_drm_regs.h"
> @@ -90,10 +91,6 @@ static const struct drm_encoder_helper_funcs hibmc_encoder_helper_funcs = {
>   	.mode_set = hibmc_encoder_mode_set,
>   };
>   
> -static const struct drm_encoder_funcs hibmc_encoder_funcs = {
> -	.destroy = drm_encoder_cleanup,
> -};
> -
>   int hibmc_vdac_init(struct hibmc_drm_private *priv)
>   {
>   	struct drm_device *dev = &priv->dev;
> @@ -109,8 +106,7 @@ int hibmc_vdac_init(struct hibmc_drm_private *priv)
>   	}
>   
>   	encoder->possible_crtcs = 0x1;
> -	ret = drm_encoder_init(dev, encoder, &hibmc_encoder_funcs,
> -			       DRM_MODE_ENCODER_DAC, NULL);
> +	ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
>   	if (ret) {
>   		drm_err(dev, "failed to init encoder: %d\n", ret);
>   		return ret;
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



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