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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Arnd > Subject: Re: [PATCH V3 04/10] clk: imx: Support building SCU clock driver as > module > > On Wed, Jul 1, 2020 at 9:19 AM Anson Huang > wrote: > > > Subject: Re: [PATCH V3 04/10] clk: imx: Support building SCU clock > > > driver as module On Tue, Jun 30, 2020 at 5:16 AM Anson Huang > wrote: > > > > > > SCU clock driver is a common driver for all SCU based platforms. > > > Current i.MX8QXP SCU clock driver will be extended to support all > > > future SCU based platforms. > > > So theoretically clk-scu.o and clk-imx8qxp.o can be combined. LPCG > > > is similar. > > > Maybe you can give a try as Arnd suggested. > > > > > > > Do we really need to link clk-scu and i.MX8QXP clock driver together just to > avoid some export? > > It was just meant to be easier than exporting a symbol and dealing with > module dependencies. If it's not easier, then don't. > > > I met some build issues if using this method, the i.MX8QXP module > > build is OK, but other platforms like > i.MX8MM/i.MX8MN/i.MX8MQ/i.MX8MP > > clock drivers are just skipped for build, even these i.MX8M clock > > config are existing in .config, anyone know why? Looks like the change in > Makefile for i.MX8QXP clock driver introduce this issue. > > You have a ":=" instead of "+=" typo, so all earlier "+=" are ignored: > > > obj-$(CONFIG_CLK_IMX8MM) += clk-imx8mm.o > > obj-$(CONFIG_CLK_IMX8MN) += clk-imx8mn.o > > obj-$(CONFIG_CLK_IMX8MP) += clk-imx8mp.o > > obj-$(CONFIG_CLK_IMX8MQ) += clk-imx8mq.o > > > > obj-$(CONFIG_MXC_CLK_SCU) := clk-imx-scu.o clk-imx-lpcg-scu.o > > ^^^^^^^^ Thanks, I will give another try, I will make the common clk part all linked into each platform's clock driver, then many exports can be saved. Thanks, Anson _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel