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    Subject[PATCH 3.10 12/97] ARM: OMAP2+: gpmc: fix: DT ONENAND child nodes not probed when MTD_ONENAND is built as module
    Date
    3.10-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Pekon Gupta <pekon@ti.com>

    commit 980386d2d6d49e0b42f48550853ef1ad6aa5d79a upstream.

    Fixes: commit 75d3625e0e86b2d8d77b4e9c6f685fd7ea0d5a96
    ARM: OMAP2+: gpmc: add DT bindings for OneNAND

    OMAP SoC(s) depend on GPMC controller driver to parse GPMC DT child nodes and
    register them platform_device for ONENAND driver to probe later. However this does
    not happen if generic MTD_ONENAND framework is built as module (CONFIG_MTD_ONENAND=m).

    Therefore, when MTD/ONENAND and MTD/ONENAND/OMAP2 modules are loaded, they are unable
    to find any matching platform_device and remain un-binded. This causes on board
    ONENAND flash to remain un-detected.

    This patch causes GPMC controller to parse DT nodes when
    CONFIG_MTD_ONENAND=y || CONFIG_MTD_ONENAND=m

    Signed-off-by: Pekon Gupta <pekon@ti.com>
    Signed-off-by: Tony Lindgren <tony@atomide.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    arch/arm/mach-omap2/gpmc.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/arch/arm/mach-omap2/gpmc.c
    +++ b/arch/arm/mach-omap2/gpmc.c
    @@ -1391,7 +1391,7 @@ static int gpmc_probe_nand_child(struct
    }
    #endif

    -#ifdef CONFIG_MTD_ONENAND
    +#if IS_ENABLED(CONFIG_MTD_ONENAND)
    static int gpmc_probe_onenand_child(struct platform_device *pdev,
    struct device_node *child)
    {



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