From: Doug Anderson Date: Tue, 2 Dec 2014 23:42:45 +0000 (-0800) Subject: mmc: core: Support the optional init_card() callback for MMC and SD X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~125^2~99 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eac86321b5c33e6b68aa4a4e0517c45df3ef02c0;p=pandora-kernel.git mmc: core: Support the optional init_card() callback for MMC and SD In (3fcb027 ARM: MXC: mxcmmc: work around a bug in the SDHC busy line handling) the optional init_card() callback was added. According to the original change it was "for now only called from mmc_sdio_init_card()". This callback really ought to be called from the SD and MMC init functions as well. One current user of this callback (mxcmci_init_card) will not work as expected if you insert an SDIO card, then eject it and put a normal SD card in. Specifically the normal SD card will not get to run with 4-bit data. I'd like to use the init_card() callback to handle a similar quirk on dw_mmc when using SDIO Interrupts (the "low power" feature of the card needs to be disabled), so that will add a second user of the function. Signed-off-by: Doug Anderson Reviewed-by: Grant Grundler Signed-off-by: Ulf Hansson --- Reading git-diff-tree failed