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drm/exynos: add check for the device power status
authorShirish S <s.shirish@samsung.com>
Thu, 24 Jan 2013 03:03:18 +0000 (22:03 -0500)
committerInki Dae <inki.dae@samsung.com>
Fri, 25 Jan 2013 05:38:46 +0000 (14:38 +0900)
V2: Add mutex protection, while read.

The hdmi and mixer win_commit calls currently are
not checking the status of IP before updating the
respective registers, this patch adds this check.

Signed-off-by: Shirish S <s.shirish@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

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