mmc: sh_mmcif: report all errors
Make error reporting in the driver more verbose. This patch is based on an earlier work by Teppei Kamijou, but we try to not add any new error messages to the log in the normal case to avoid confusing the user, and also add a few more dev_dbg() calls. Signed-off-by: NTeppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: NShinya Kuribayashi <shinya.kuribayashi.px@renesas.com> [g.liakhovetski@gmx.de: avoid producing new errors in normal case] Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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