linux-kernel - Re: [PATCH] drm/imx: depend on COMMON

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Date:   Tue, 17 Nov 2020 11:56:31 +0100
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/imx: depend on COMMON_CLK to fix compile tests

On Mon, 2020-11-16 at 19:14 +0100, Krzysztof Kozlowski wrote:
> The iMX DRM drivers use Common Clock Framework thus they cannot be built
> on platforms without it (e.g. compile test on MIPS with RALINK and
> SOC_RT305X):
> 
>     /usr/bin/mips-linux-gnu-ld: drivers/gpu/drm/imx/imx-ldb.o: in function `imx_ldb_encoder_disable':
>     imx-ldb.c:(.text+0x400): undefined reference to `clk_set_parent'
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

Thank you, but could this be added to

config DRM_IMX_LDB

instead?

The core DRM_IMX code does not use the Common Clock Framework directly.
DRM_IMX_TVE already depends on COMMON_CLK because it implements a clock.

regards
Philipp