> -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> > Sent: Tuesday, August 30, 2022 12:33 PM > To: Frank Li <frank.li@xxxxxxx>; kishon@xxxxxx; vkoul@xxxxxxxxxx; > robh+dt@xxxxxxxxxx; krzysztof.kozlowski+dt@xxxxxxxxxx; > shawnguo@xxxxxxxxxx; s.hauer@xxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx; > festevam@xxxxxxxxx; dl-linux-imx <linux-imx@xxxxxxx>; balbi@xxxxxxxxxx; > gregkh@xxxxxxxxxxxxxxxxxxx; linux-phy@xxxxxxxxxxxxxxxxxxx; > devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux- > kernel@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; imx@xxxxxxxxxxxxxxx > Subject: [EXT] Re: [PATCH v1 1/1] usb: phy: mxs: apply board calibration > value base on chip trim value > > Caution: EXT Email > > On 30/08/2022 19:25, Frank Li wrote: > > USBPHY_TRIM_OVERRIDE provide chip trim value. DTS provide board level > > calibration data. Board level calibration data should be base on chip > > trim value. > > > > For example, TXCAL45DP board level hope add +2.85% register base on > > standard 45ohm. But chip trim value is -5.25% to get 45ohm output. > > Actually finial TXCAL45DP should be -5.25% + 2.85% = -2.4%. > > > > If chip have not trim value at USBPHY_TRIM_OVERRIDE, No behavior > change. > > board level calibration will be applied. > > > > If chip have trim value at USBPHY_TRIM_OVERRIDE and no DTS board level > > data, chip trim value will be applied. > > > > Signed-off-by: Frank Li <Frank.Li@xxxxxxx> > > --- > > drivers/usb/phy/phy-mxs-usb.c | 40 > ++++++++++++++++++++++++++++++++--- > > 1 file changed, 37 insertions(+), 3 deletions(-) > > Use scripts/get_maintainers.pl to CC all maintainers and relevant > mailing lists.... and do not Cc unrelated folks. [Frank Li] Thanks. I reused cc list, I sent the patch yesterday, which change the same file. Only difference, This patch have not touch document. Next time, I will rerun get_mainainers.pl. > > Best regards, > Krzysztof
