diff options
Diffstat (limited to 'drivers/staging/media/sunxi/cedrus/cedrus_hw.c')
| -rw-r--r-- | drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c index 17e91bb5c26a..735437480706 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c @@ -31,6 +31,21 @@ #include "cedrus_hw.h" #include "cedrus_regs.h" +void cedrus_engine_reset(struct cedrus_dev *dev) +{ + u32 reg, flags; + int ret; + + /* Wait for the cache and memory access to idle. */ + flags = VE_RESET_SYNC_IDLE | VE_RESET_CACHE_SYNC_IDLE; + readl_poll_timeout_atomic(dev->base + VE_RESET, reg, + (reg & flags) == flags, 1, 100); + + /* Reset anyway if busy for 100 ms. */ + cedrus_write(dev, VE_RESET, reg | VE_RESET_DECODER); + cedrus_write(dev, VE_RESET, reg); +} + int cedrus_engine_enable(struct cedrus_ctx *ctx) { u32 reg = 0; |