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| /linux/drivers/gpu/ipu-v3/ |
| H A D | ipu-dmfc.c | diff 32c26a56af3ae823a883e926b96e3ff00854e6a8 Mon Mar 14 09:10:08 CET 2016 Liu Ying <gnuiyl@gmail.com> gpu: ipu-v3: ipu-dmfc: Protect function ipu_dmfc_init_channel() with mutex
To avoid race condition issue, we should protect the function
ipu_dmfc_init_channel() with the mutex dmfc->priv->mutex, since it
configures the register DMFC_GENERAL1 at runtime which contains
several control bits for various display channels. This matches
better with fine grained locking logic in upper layer.
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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