linux-kernel - Re: [PATCH v2] drm/bridge: imx: i.MX8 bridge drivers should depend on ARCH

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Date:   Mon, 27 Jun 2022 14:22:08 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Liu Ying <victor.liu@....com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Robert Foss <robert.foss@...aro.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Marek Vasut <marex@...x.de>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] drm/bridge: imx: i.MX8 bridge drivers should depend on
 ARCH_MXC

Hi,

On 24/06/2022 14:10, Geert Uytterhoeven wrote:
> The various Freescale i.MX8 display bridges are only present on
> Freescale i.MX8 SoCs.  Hence add a dependency on ARCH_MXC, to prevent
> asking the user about these drivers when configuring a kernel without
> i.MX SoC support.
> 
> Fixes: e60c4354840b2fe8 ("drm/bridge: imx: Add LDB support for i.MX8qm")
> Fixes: 3818715f62b42b5c ("drm/bridge: imx: Add LDB support for i.MX8qxp")
> Fixes: 96988a526c97cfbe ("drm/bridge: imx: Add i.MX8qxp pixel link to DPI support")
> Fixes: 1ec17c26bc06289d ("drm/bridge: imx: Add i.MX8qm/qxp display pixel link support")
> Fixes: 93e163a9e0392aca ("drm/bridge: imx: Add i.MX8qm/qxp pixel combiner support")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> Reviewed-by: Liu Ying <victor.liu@....com>
> ---
> v2:
>    - s/i.MX8MP/i.MX8/,
>    - Add Reviewed-by.
> ---
>   drivers/gpu/drm/bridge/imx/Kconfig | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/imx/Kconfig
> index 212a7b0e64fd8b5a..608f47f41bcd1c81 100644
> --- a/drivers/gpu/drm/bridge/imx/Kconfig
> +++ b/drivers/gpu/drm/bridge/imx/Kconfig
> @@ -1,3 +1,5 @@
> +if ARCH_MXC || COMPILE_TEST
> +
>   config DRM_IMX8QM_LDB
>   	tristate "Freescale i.MX8QM LVDS display bridge"
>   	depends on OF
> @@ -41,3 +43,5 @@ config DRM_IMX8QXP_PIXEL_LINK_TO_DPI
>   	help
>   	  Choose this to enable pixel link to display pixel interface(PXL2DPI)
>   	  found in Freescale i.MX8qxp processor.
> +
> +endif # ARCH_MXC || COMPILE_TEST

I was wondering why those were added in drivers/gpu/drm/bridge/imx since they are specific to NXP SoCs,
I think they should be moved in the right drm imx subsystem instead of this change.

Neil