Re: [PATCH v12 1/1] mux: Add driver for Renesas RZ/V2H USB VBENCTL VBUS_SEL mux

On Wed, Jul 15, 2026 at 11:19 AM Tommaso Merciai
<[email protected]> wrote:
>
> As per the RZ/V2H(P) HW manual, VBUSEN can be controlled by the VBUS_SEL
> bit of the VBENCTL Control Register. This register is mapped in the
> reset framework. The reset driver expose this register as mux-controller
> and instantiates this driver. The consumer will use the mux API to
> control the VBUS_SEL bit.
>
> Reviewed-by: Philipp Zabel <[email protected]>
> Signed-off-by: Tommaso Merciai <[email protected]>
> ---
> v11->v12
>  - No changes, just rebased on top of next-20260714
>
> v10->v11:
>  - No changes.
>
> v9->v10:
>  - No changes.
>
> v8->v9:
>  - Fixed driver comment year (2025 -> 2026)
>  - Switch from devm_regmap_init_mmio() to dev_get_regmap().
>  - Drop unnecessasry include bitops.h, of.h, property.h and
>    drivers/reset/reset-rzv2h-usb2phy.h headers, driver is now based on regmap.
>  - Collected PZabel tag.
>
> v7->v8:
>  - No changes.
>
> v6->v7:
>  - No changes.
>
> v5->v6:
>  - No changes.
>
> v4->v5:
>  - Changed file name to rzv2h-usb-vbenctl.c and Fixed
>    Makefile, Kconfig, function names accordingly.
>  - Changed driver .name to "vbenctl" and fix auxiliary_device_id name.
>  - Updated commit msg.
>
> v3->v4:
>  - Removed mux_chip->dev.of_node not needed.
>
> v2->v3:
>  - Added mux_chip->dev.of_node = dev->of_node->child as the mux-controller
>    is an internal node.
>  - Fixed auxiliary_device_id name.
>  - Get rdev using from platform_data.
>  - Drop struct auxiliary_device adev from reset_rzv2h_usb2phy_adev
>    as it is needed.
>  - Drop to_reset_rzv2h_usb2phy_adev() as it is not needed.
>
> v1->v2:
>  - New patch
>
>  drivers/mux/Kconfig             | 11 +++++
>  drivers/mux/Makefile            |  2 +
>  drivers/mux/rzv2h-usb-vbenctl.c | 85 +++++++++++++++++++++++++++++++++
>  3 files changed, 98 insertions(+)
>  create mode 100644 drivers/mux/rzv2h-usb-vbenctl.c
>
Reviewed-by: Lad Prabhakar <[email protected]>

Cheers,
Prabhakar