[PATCH RFC 0/3] Support VBUSEN selection control for RZ/G2L

[Biju Das]

Hi All,

What about modelling VBUSEN as a regulator?

USB phy ctrl driver shares the resource to VBUSEN regulator driver
for enable/disable VBUS and PHY driver uses regulator to control the
VBUS??

+ DT as it involves different modelling

Cheers,
Biju

> -----Original Message-----
> From: Biju Das
> Sent: Tuesday, February 27, 2024 12:03 PM
> Subject: RE: [PATCH RFC 0/3] Support VBUSEN selection control for RZ/G2L
> 
> Hi All,
> 
> > -----Original Message-----
> > From: Biju Das <biju.das.jz at bp.renesas.com>
> > Sent: Thursday, May 18, 2023 4:57 PM
> > To: Philipp Zabel <p.zabel at pengutronix.de>
> > Cc: Biju Das <biju.das.jz at bp.renesas.com>; Vinod Koul
> > <vkoul at kernel.org>; Kishon Vijay Abraham I <kishon at kernel.org>;
> > linux-phy at lists.infradead.org; Geert Uytterhoeven
> > <geert+renesas at glider.be>; Fabrizio Castro
> > <fabrizio.castro.jz at renesas.com>; linux-renesas-soc at vger.kernel.org
> > Subject: [PATCH RFC 0/3] Support VBUSEN selection control for RZ/G2L
> >
> > This patch series aims to add support for VBUSEN selection control for
> > RZ/G2L alike SoCs.
> >
> > As per RZ/G2L HW(Rev.1.30 May2023) manual, VBUSEN can be controlled by
> > the Port Power bit of the EHCI/OHCI operational register or by the
> > VBOUT bit of the VBUS Control Register.
> >
> > A reset consumer(phy-rcar-gen3-usb2) needs to find the reset
> > controller device and then call the provider(reset-rzg2l-usbphy-ctrl)
> > to configure it.
> >
> > Please share your thoughts on this patch series.
> 
> Gentle ping for this RFC series. Is this series is in the right direction?
> 
> Cheers,
> Biju
> 
> >
> > Biju Das (3):
> >   reset: Add reset_controller_get_dev()
> >   reset: renesas: Add rzg2l_usbphy_ctrl_select_vbus_ctrl()
> >   phy: renesas: phy-rcar-gen3-usb2: Control VBUSEN selection
> >
> >  drivers/phy/renesas/phy-rcar-gen3-usb2.c |  9 ++++++++
> >  drivers/reset/core.c                     | 14 ++++++++++++
> >  drivers/reset/reset-rzg2l-usbphy-ctrl.c  | 27 ++++++++++++++++++++++++
> >  include/linux/reset-controller.h         |  9 ++++++++
> >  include/linux/reset/rzg2l-usbphy-ctrl.h  | 16 ++++++++++++++
> >  5 files changed, 75 insertions(+)
> >  create mode 100644 include/linux/reset/rzg2l-usbphy-ctrl.h
> >
> > --
> > 2.25.1