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bcwc_pcie: add waiting for magic value from firmware

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Sven Schnelle
2015-10-26 21:19:49 +01:00
parent e9abeff9fb
commit 6966bb66d6
1 changed files with 18 additions and 1 deletions
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19
isp.c
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@@ -415,7 +415,24 @@ int isp_init(struct bcwc_private *dev_priv)
offset = BCWC_ISP_REG_READ(ISP_IPC_NUM_CHAN);
dev_info(&dev_priv->pdev->dev, "Channel description table at %08x\n", offset);
isp_fill_channel_info(dev_priv, offset, num_channels);
ret = isp_fill_channel_info(dev_priv, offset, num_channels);
if (ret)
return ret;
BCWC_ISP_REG_WRITE(0x8042006, ISP_IPC_NUM_CHAN);
for (retries = 0; retries < 1000; retries++) {
reg = BCWC_ISP_REG_READ(ISP_FW_HEAP_SIZE);
if (reg)
break;
mdelay(10);
}
if (retries >= 1000) {
dev_info(&dev_priv->pdev->dev, "Init failed! No magic value\n");
return -EIO;
} /* FIXME: free on error path */
dev_info(&dev_priv->pdev->dev, "magic value: %08x after %d ms\n", reg, (retries - 1) * 10);
}
return 0;