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SubjectRe: [PATCH] mtd: onenand: omap2: add dependency on GPMC
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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@intel.com>
> Fixes: 854fd9209b20 ("memory: omap-gpmc: Allow building as a module")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.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?

> help
> Support for a OneNAND flash device connected to an OMAP2/OMAP3 SoC
> via the GPMC memory controller.

cheers,
-roger

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