[media] mn88473: check if firmware is already running before loading it (567627bf) · Commits · 戴 / test

drivers/staging/media/mn88473/mn88473.c

+12 −1

Original line number	Diff line number	Diff line
		@@ -196,8 +196,19 @@ static int mn88473_init(struct dvb_frontend *fe)

		dev_dbg(&client->dev, "\n");

		if (dev->warm)
		/* set cold state by default */
		dev->warm = false;

		/* check if firmware is already running */
		ret = regmap_read(dev->regmap[0], 0xf5, &tmp);
		if (ret)
		goto err;

		if (!(tmp & 0x1)) {
		dev_info(&client->dev, "firmware already running\n");
		dev->warm = true;
		return 0;
		}

		/* request the firmware, this will block and timeout */
		ret = request_firmware(&fw, fw_file, &client->dev);