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Make sure that the reset is successful by issuing a dummy read to R channel current register and check its default value. On some platforms, without this dummy read, any further access to {R/G/B}_EXEC will not have any impact. [akpm@linux-foundation.org: fix up code comment] Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com> Tested-by: Naga Radhesh <naga.radheshy@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>