diff options
| author | Xu Yang <xu.yang_2@nxp.com> | 2023-06-27 14:21:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-25 19:21:52 +0300 |
| commit | 3bd442e4d2a49cd45cfecefcf95af72a3a44049a (patch) | |
| tree | 25dfddff78b3ce3ee0206161544bb38e3267d44d /drivers/usb/chipidea/ci_hdrc_imx.c | |
| parent | 8d2c452c9ee982ed26c742b9faab0f3202370f7d (diff) | |
| download | linux-3bd442e4d2a49cd45cfecefcf95af72a3a44049a.tar.xz | |
usb: chipidea: imx: add one fsl picophy parameter tuning implementation
In some cases, the user may need to tune the rise/fall time of the
high-speed transmitter waveform for USB Certification. This will add
a parameter for this purpose. The value will be fetched from dtb and
finally written to the register.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20230627112126.1882666-3-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/ci_hdrc_imx.c')
| -rw-r--r-- | drivers/usb/chipidea/ci_hdrc_imx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index c251a4f34879..772bbdade994 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -182,6 +182,9 @@ static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) if (of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust", &data->dc_vol_level_adjust)) data->dc_vol_level_adjust = -1; + if (of_property_read_u32(np, "fsl,picophy-rise-fall-time-adjust", + &data->rise_fall_time_adjust)) + data->rise_fall_time_adjust = -1; return data; } |