linux-kernel - Re: [PATCH 01/20] drivers/gpu/drm/rockchip: remove I2C_CLASS

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Date:   Mon, 13 Nov 2023 21:42:05 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Wolfram Sang <wsa@...nel.org>, Sandy Huang <hjc@...k-chips.com>,
        Heiner Kallweit <hkallweit1@...il.com>
Cc:     linux-i2c@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/20] drivers/gpu/drm/rockchip: remove I2C_CLASS_DDC support

Am Montag, 13. November 2023, 12:23:25 CET schrieb Heiner Kallweit:
> After removal of the legacy EEPROM driver and I2C_CLASS_DDC support in
> olpc_dcon there's no i2c client driver left supporting I2C_CLASS_DDC.
> Class-based device auto-detection is a legacy mechanism and shouldn't
> be used in new code. So we can remove this class completely now.
> 
> Preferably this series should be applied via the i2c tree.
> 
> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>

Acked-by: Heiko Stuebner <heiko@...ech.de>

> 
> ---
>  drivers/gpu/drm/rockchip/inno_hdmi.c   |    1 -
>  drivers/gpu/drm/rockchip/rk3066_hdmi.c |    1 -
>  2 files changed, 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
> index 6e5b922a1..a7739b27c 100644
> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
> @@ -793,7 +793,6 @@ static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi)
>  	init_completion(&i2c->cmp);
>  
>  	adap = &i2c->adap;
> -	adap->class = I2C_CLASS_DDC;
>  	adap->owner = THIS_MODULE;
>  	adap->dev.parent = hdmi->dev;
>  	adap->dev.of_node = hdmi->dev->of_node;
> diff --git a/drivers/gpu/drm/rockchip/rk3066_hdmi.c b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
> index fa6e592e0..7a3f71aa2 100644
> --- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c
> +++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
> @@ -725,7 +725,6 @@ static struct i2c_adapter *rk3066_hdmi_i2c_adapter(struct rk3066_hdmi *hdmi)
>  	init_completion(&i2c->cmpltn);
>  
>  	adap = &i2c->adap;
> -	adap->class = I2C_CLASS_DDC;
>  	adap->owner = THIS_MODULE;
>  	adap->dev.parent = hdmi->dev;
>  	adap->dev.of_node = hdmi->dev->of_node;
> 
>