linux-kernel - Re: [PATCH] clk: imx: fix build failure on i.MX SCU clk

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Date:   Fri, 04 Dec 2020 21:41:13 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Anson Huang <Anson.Huang@....com>, Arnd Bergmann <arnd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Anders Roxell <anders.roxell@...aro.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Dong Aisheng <aisheng.dong@....com>,
        Peng Fan <peng.fan@....com>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: imx: fix build failure on i.MX SCU clk

Quoting Arnd Bergmann (2020-12-03 15:07:52)
> From: Arnd Bergmann <arnd@...db.de>
> 
> When CONFIG_MXC_CLK_SCU is enabled, but CONFIG_CLK_IMX8QXP is not,
> the kernel fails to link with:
> 
> aarch64-linux-ld: no input files
> make[5]: *** [scripts/Makefile.build:434: drivers/clk/imx/clk-imx-scu.o] Error 1
> aarch64-linux-ld: no input files
> make[5]: *** [scripts/Makefile.build:434: drivers/clk/imx/clk-imx-lpcg-scu.o] Error 1
> 
> The only sensible configuration at the moment is to have both mean
> the same thing, so make hide the first one to avoid broken
> configurations.
> 
> Fixes: e0d0d4d86c76 ("clk: imx8qxp: Support building i.MX8QXP clock driver as module")
> Reported-by: Anders Roxell <anders.roxell@...aro.org>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Dong sent something similar at
https://lore.kernel.org/r/20201130084624.21113-1-aisheng.dong@nxp.com