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Date: Mon, 7 Nov 2022 09:55:02 +0100 From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> To: Roger Quadros <rogerq@...nel.org>, Kyungmin Park <kyungmin.park@...sung.com>, Miquel Raynal <miquel.raynal@...tlin.com>, Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: kernel test robot <lkp@...el.com> Subject: Re: [PATCH] mtd: onenand: omap2: add dependency on GPMC On 07/11/2022 09:44, Roger Quadros wrote: > Hello Krzysztof, > > On 04/11/2022 21:49, Krzysztof Kozlowski wrote: >> OMAP2 OneNAND driver uses gpmc_omap_onenand_set_timings() provided by >> OMAP GPMC driver, so the latter cannot be module if OneNAND driver is >> built-in: >> >> /usr/bin/arm-linux-gnueabi-ld: drivers/mtd/nand/onenand/onenand_omap2.o: in function `omap2_onenand_probe': >> onenand_omap2.c:(.text+0x520): undefined reference to `gpmc_omap_onenand_set_timings' >> >> Reported-by: kernel test robot <lkp@...el.com> >> Fixes: 854fd9209b20 ("memory: omap-gpmc: Allow building as a module") >> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> >> --- >> drivers/mtd/nand/onenand/Kconfig | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/mtd/nand/onenand/Kconfig b/drivers/mtd/nand/onenand/Kconfig >> index 34d9a7a82ad4..fa94c514626d 100644 >> --- a/drivers/mtd/nand/onenand/Kconfig >> +++ b/drivers/mtd/nand/onenand/Kconfig >> @@ -26,6 +26,7 @@ config MTD_ONENAND_OMAP2 >> tristate "OneNAND on OMAP2/OMAP3 support" >> depends on ARCH_OMAP2 || ARCH_OMAP3 || (COMPILE_TEST && ARM) >> depends on OF || COMPILE_TEST >> + depends on OMAP_GPMC || !OMAP_GPMC > > Why did you add !OMAP_GPMC? > > If OMAP_GPMC is not set we don't want to be able to build this driver correct? It will build fine because of stubs, so building is not a problem. We just want to forbid having this built-in if OMAP_GPMC is a module. The question is whether this is a runtime dependency as well? Best regards, Krzysztof
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