Commit defcedfb authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
Browse files

media: i2c: max9286: Print power-up GMSL link configuration 



The power-up GMSL link configuration is controlled by the HIM and BWS
pins, whose state is reflected in register 0x1c. Print the detected
power-up config in a debug message to help debugging.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 40f75457

drivers/media/i2c/max9286.c

+12 −9
Original line number Diff line number Diff line
@@ -1156,6 +1156,7 @@ static int max9286_setup(struct max9286_priv *priv) 
		(2 << 6) | (1 << 4) | (0 << 2) | (3 << 0), /* 210x */

		(3 << 6) | (2 << 4) | (1 << 2) | (0 << 0), /* 3210 */

	};

	int cfg;



	/*

	 * Set the I2C bus speed.
@@ -1177,21 +1178,23 @@ static int max9286_setup(struct max9286_priv *priv) 
	max9286_set_video_format(priv, &max9286_default_format);

	max9286_set_fsync_period(priv);



	if (priv->bus_width) {

		int val;

	cfg = max9286_read(priv, 0x1c);

	if (cfg < 0)

		return cfg;



		val = max9286_read(priv, 0x1c);

		if (val < 0)

			return val;

	dev_dbg(&priv->client->dev, "power-up config: %s immunity, %u-bit bus\n",

		cfg & MAX9286_HIGHIMM(0) ? "high" : "legacy",

		cfg & MAX9286_BWS ? 32 : cfg & MAX9286_HIBW ? 27 : 24);



		val &= ~(MAX9286_HIBW | MAX9286_BWS);

	if (priv->bus_width) {

		cfg &= ~(MAX9286_HIBW | MAX9286_BWS);



		if (priv->bus_width == 27)

			val |= MAX9286_HIBW;

			cfg |= MAX9286_HIBW;

		else if (priv->bus_width == 32)

			val |= MAX9286_BWS;

			cfg |= MAX9286_BWS;



		max9286_write(priv, 0x1c, val);

		max9286_write(priv, 0x1c, cfg);

	}



	/*