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

Biju Das biju.das.jz at bp.renesas.com
Tue Feb 27 04:02:47 PST 2024


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




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