kernel/drivers/usb/chipidea/usbmisc_imx.c, branch linux-6.9.y

usb: chipidea: imx: add one fsl picophy parameter tuning implementation

2023-07-25T16:21:52Z

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 Acked-by: Peter Chen Link: https://lore.kernel.org/r/20230627112126.1882666-3-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman

usb: chipidea: imx: improve logic if samsung,picophy-* parameter is 0

2023-07-25T16:21:51Z

In current driver, the value of tuning parameter will not take effect if samsung,picophy-* is assigned as 0. Because 0 is also a valid value acccording to the description of USB_PHY_CFG1 register, this will improve the logic to let it work. Fixes: 58a3cefb3840 ("usb: chipidea: imx: add two samsung picophy parameters tuning implementation") cc: Signed-off-by: Xu Yang Acked-by: Peter Chen Link: https://lore.kernel.org/r/20230627112126.1882666-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman

usb: Explicitly include correct DT includes

2023-07-25T16:20:02Z

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Herve Codina Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230718143027.1064731-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman

usb: chipidea: imx: add missing USB PHY DPDM wakeup setting

2023-06-13T10:05:42Z

USB PHY DPDM wakeup bit is enabled by default, when USB wakeup is not required(/sys/.../wakeup is disabled), this bit should be disabled, otherwise we will have unexpected wakeup if do USB device connect/disconnect while system sleep. This bit can be enabled for both host and device mode. Signed-off-by: Li Jun Signed-off-by: Xu Yang Acked-by: Peter Chen Message-ID: <20230517081907.3410465-3-xu.yang_2@nxp.com> Signed-off-by: Greg Kroah-Hartman

usb: chipidea: imx: turn off vbus comparator when suspend

2023-06-13T10:05:42Z

As we use bvalid for vbus wakeup source, to save power when suspend, turn off the vbus comparator for imx7d and imx8mm. Below is this bit description from RM of iMX8MM "VBUS Valid Comparator Enable: This signal controls the USB OTG PHY VBUS Valid comparator which indicates whether the voltage on the USB_OTG*_VBUS pin is below the VBUS Valid threshold. The VBUS Valid threshold is nominally 4.75V on this USB PHY. The VBUS Valid threshold can be adjusted using the USBNC_OTGn_PHY_CFG1[OTGTUNE0] bit field. Status of the VBUS Valid comparator, when it is enabled, is reported on the USBNC_OTGn_PHY_STATUS[VBUS_VLD] bit. When OTGDISABLE0 (USBNC_USB_OTGx_PHY_CFG2[10])is set to 1'b0 and DRVVBUS0 is set to 1'b1, the Bandgap circuitry and VBUS Valid comparator are powered, even in Suspend or Sleep mode. DRVVBUS0 should be reset to 1'b0 when the internal VBUS Valid comparator is not required, to reduce quiescent current in Suspend or Sleep mode. - 0 The VBUS Valid comparator is disabled - 1 The VBUS Valid comparator is enabled" Signed-off-by: Li Jun Signed-off-by: Xu Yang Acked-by: Peter Chen Message-ID: <20230517081907.3410465-2-xu.yang_2@nxp.com> Signed-off-by: Greg Kroah-Hartman

usb: chipidea: imx: remove one duplicated reg define

2023-05-29T14:49:25Z

Remove one duplicated definition of MX7D_USB_OTG_PHY_CFG1. Signed-off-by: Li Jun Signed-off-by: Xu Yang Link: https://lore.kernel.org/r/20230517081907.3410465-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman

usb: chipidea: imx: Drop empty platform remove function

2023-01-06T15:37:14Z

A remove callback just returning 0 is equivalent to no remove callback at all. So drop the useless function. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20221212212717.3774606-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

usb: chipidea: usbmisc: add power lost check for imx7ulp

2022-10-23T12:34:53Z

imx7ulp can shutdown domain power supply if none of peripheral in this domain is registered as wakeup source, this patch add related power lost check API. Signed-off-by: Li Jun Link: https://lore.kernel.org/r/20221013151442.3262951-9-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman

usb: chipidea: usbmisc: add power lost check for imx7d

2022-10-23T12:34:53Z

imx7d can shutdown domain power supply if none of peripheral in this domain is registered as wakeup source, this patch add related codes to check if power is lost. Signed-off-by: Li Jun Link: https://lore.kernel.org/r/20221013151442.3262951-8-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman

usb: chipidea: usbmisc: add power lost check for imx6sx

2022-10-23T12:34:53Z

imx6sx mega off can shutdown domain power supply if none of peripheral in this domain is registered as wakeup source, this patch add related codes to check if power is lost. Signed-off-by: Li Jun Link: https://lore.kernel.org/r/20221013151442.3262951-7-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman