diff options
| author |   Jonathan Lemon <jonathan.lemon@gmail.com> | 2021-09-14 19:16:21 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-09-15 11:10:00 +0100 |
| commit | 1447149d653934dea868d22d00d7b5f1b86ef70b (patch) | |
| tree | 79e34272da9d54cac03ab505ccc6e8756852dfa8 /drivers/ptp | |
| parent | ptp: ocp: Parameterize the TOD information display. (diff) | |
| download | linux-dev-1447149d653934dea868d22d00d7b5f1b86ef70b.tar.xz linux-dev-1447149d653934dea868d22d00d7b5f1b86ef70b.zip | |
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: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/ptp_ocp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 2a6cc762c60e..196a457929f0 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -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"); |