Commit 64e4cbf0 authored Jun 09, 2016 by Abdulla Anam

msm: vidc: ensure venus is in power on before scaling clocks



It is to be ensured that venus is in power on state before scaling
clocks. When venus goes to power collapse, a resume can happen
either when driver writes some command to the command queue or any
response comes from firmware. So when client requests a particular
perf_level, venus is not resumed and scale clocks is called.

CRs-Fixed: 1000809

Change-Id: I2ac46c481065ada2b62a5eb248fbdf18f2b1a91f
Signed-off-by: Abdulla Anam <abdullahanam@codeaurora.org>

parent bc936131

drivers/media/platform/msm/vidc/venus_hfi.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -1531,9 +1531,16 @@ static int venus_hfi_scale_clocks(void *dev, int load,
		}

		mutex_lock(&device->lock);

		if (__resume(device)) {
		dprintk(VIDC_ERR, "Resume from power collapse failed\n");
		rc = -ENODEV;
		goto exit;
		}

		rc = __scale_clocks(device, load, data, instant_bitrate);
		exit:
		mutex_unlock(&device->lock);

		return rc;
		}