Commit 1447149d authored by Jonathan Lemon's avatar Jonathan Lemon Committed by David S. Miller
Browse files

ptp: ocp: Skip I2C flash read when there is no controller. 



If an I2C controller isn't present, don't try and read the I2C flash.

Signed-off-by: default avatarJonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 498ad3f4

drivers/ptp/ptp_ocp.c

+5 −2
Original line number Diff line number Diff line
@@ -228,8 +228,8 @@ static int ptp_ocp_ts_enable(void *priv, bool enable); 
 * 3: GPS

 * 4: GPS2 (n/c)

 * 5: MAC

 * 6: SPI IMU (inertial measurement unit)

 * 7: I2C oscillator

 * 6: N/C

 * 7: I2C controller

 * 8: HWICAP

 * 9: SPI Flash

 */
@@ -706,6 +706,9 @@ ptp_ocp_get_serial_number(struct ptp_ocp *bp) 
	struct device *dev;

	int err;



	if (!bp->i2c_ctrl)

		return;



	dev = device_find_child(&bp->i2c_ctrl->dev, NULL, ptp_ocp_firstchild);

	if (!dev) {

		dev_err(&bp->pdev->dev, "Can't find I2C adapter\n");