[PATCH v8 02/10] reset: Add Realtek basic reset support

[Philipp Zabel]

On Mi, 2026-06-10 at 16:08 +0800, Yu-Chun Lin wrote:
> From: Cheng-Yu Lee <cylee12 at realtek.com>
> 
> Define the reset operations backed by a regmap-based register interface
> and prepare the reset controller to be registered through the reset
> framework.
> 
> Since the reset controllers on Realtek SoCs often share the same register
> space with the clock controllers, this common framework is designed to
> extract the regmap and device tree node from the parent device
> (e.g., an auxiliary device parent).
> 
> Signed-off-by: Cheng-Yu Lee <cylee12 at realtek.com>
> Co-developed-by: Yu-Chun Lin <eleanor.lin at realtek.com>
> Signed-off-by: Yu-Chun Lin <eleanor.lin at realtek.com>
> ---
> Changes in v8:
> - None
> ---
>  MAINTAINERS                    |  1 +
>  drivers/reset/Kconfig          |  1 +
>  drivers/reset/Makefile         |  1 +
>  drivers/reset/realtek/Kconfig  |  8 +++
>  drivers/reset/realtek/Makefile |  2 +
>  drivers/reset/realtek/common.c | 90 ++++++++++++++++++++++++++++++++++
>  drivers/reset/realtek/common.h | 29 +++++++++++
>  7 files changed, 132 insertions(+)
>  create mode 100644 drivers/reset/realtek/Kconfig
>  create mode 100644 drivers/reset/realtek/Makefile
>  create mode 100644 drivers/reset/realtek/common.c
>  create mode 100644 drivers/reset/realtek/common.h
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 613ca7e95e47..80e840a6691d 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -22484,6 +22484,7 @@ L:	devicetree at vger.kernel.org
>  L:	linux-clk at vger.kernel.org
>  S:	Supported
>  F:	Documentation/devicetree/bindings/clock/realtek*
> +F:	drivers/reset/realtek/*
>  F:	include/dt-bindings/clock/realtek*
>  F:	include/dt-bindings/reset/realtek*
>  
> diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
> index d009eb0849a3..45a4227b5f44 100644
> --- a/drivers/reset/Kconfig
> +++ b/drivers/reset/Kconfig
> @@ -418,6 +418,7 @@ config RESET_ZYNQMP
>  
>  source "drivers/reset/amlogic/Kconfig"
>  source "drivers/reset/hisilicon/Kconfig"
> +source "drivers/reset/realtek/Kconfig"
>  source "drivers/reset/spacemit/Kconfig"
>  source "drivers/reset/starfive/Kconfig"
>  source "drivers/reset/sti/Kconfig"
> diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
> index 3e52569bd276..7330fee91365 100644
> --- a/drivers/reset/Makefile
> +++ b/drivers/reset/Makefile
> @@ -2,6 +2,7 @@
>  obj-y += core.o
>  obj-y += amlogic/
>  obj-y += hisilicon/
> +obj-y += realtek/
>  obj-y += spacemit/
>  obj-y += starfive/
>  obj-y += sti/
> diff --git a/drivers/reset/realtek/Kconfig b/drivers/reset/realtek/Kconfig
> new file mode 100644
> index 000000000000..bb6dd856a64a
> --- /dev/null
> +++ b/drivers/reset/realtek/Kconfig
> @@ -0,0 +1,8 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +config RESET_RTK_COMMON
> +	tristate "Realtek common reset driver" if COMPILE_TEST
> +	help
> +	  This option enables the common reset controller library for
> +	  Realtek SoCs. It provides shared reset control operations
> +	  (assert, deassert, status) and a registration helper function
> +	  that other Realtek-specific reset drivers can use.
> diff --git a/drivers/reset/realtek/Makefile b/drivers/reset/realtek/Makefile
> new file mode 100644
> index 000000000000..b59a3f7f2453
> --- /dev/null
> +++ b/drivers/reset/realtek/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +obj-$(CONFIG_RESET_RTK_COMMON) += common.o

That's an awfully generic module name. Id doesn't match the config option well. Please rename this to reset-rtk-common.o, reset-realtek.o, or something similar.

regards
Philipp