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Author SHA1 Message Date
Tommaso Merciai
642c462854 dt-bindings: phy: renesas,usb2-phy: Document RZ/G3E SoC 
Document USB2.0 phy bindings for RZ/G3E ("R9A09G047") SoC.

The RZ/G3E USB2.0 phy is functionally identical to the one found
on the RZ/V2H(P), so no driver changes are needed. The existing
"renesas,usb2-phy-r9a09g057" will be used as a fallback compatible for
this IP.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/4f2454708428b48e03faabe79e383999fb1ab458.1766405010.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2026-01-21 14:16:02 +05:30
Tommaso Merciai
cd597ce646 dt-bindings: phy: renesas,usb2-phy: Document mux-states property 
Some Renesas SoCs, such as RZ/G3E, provide a USB2.0 OTG PHY with
configurable VBUS control through a multiplexed hardware register.
This register allows selecting the VBUS source via a mux control
line exposed by the PHY.

To represent this hardware configuration, support the standard
`mux-states` property in the Renesas USB2 PHY binding.
This allows the DeviceTree to model the VBUS source selection as
a mux, consistent with generic binding conventions.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/36d448dd10bbb2bbfa5b1b6b6e3fee86c34d01aa.1766405010.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2026-01-21 14:16:02 +05:30
Tommaso Merciai
274038b82f dt-bindings: phy: renesas,usb2-phy: Document USB VBUS regulator 
Document the 'vbus-regulator' child node in the Renesas USB2 PHY binding
to describe the internal USB VBUS regulator.

Require this regulator node on OTG channels to accurately represent
hardware dependencies in the device tree.

Documenting this regulator allows device trees to model the VBUS power
requirements of these SoCs properly.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/aaa8044283eb736817afd43d4fba3aa93b50b1dd.1766405010.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2026-01-21 14:16:02 +05:30
Claudiu Beznea
bc6f8b756c dt-bindings: phy: renesas,usb2-phy: Mark resets as required for RZ/G3S 
The reset lines are mandatory for the Renesas RZ/G3S platform and must be
explicitly defined in device tree.

Fixes: f3c8498551 ("dt-bindings: phy: renesas,usb2-phy: Document RZ/G3S phy bindings")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Link: https://patch.msgid.link/20251023135810.1688415-2-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2025-11-20 22:14:28 +05:30
Lad Prabhakar
ab9c8aeb2d dt-bindings: phy: renesas,usb2-phy: Add RZ/T2H and RZ/N2H support 
Document the USB2 PHY controller for the Renesas RZ/T2H (r9a09g077) and
RZ/N2H (r9a09g087) SoCs. These SoCs share the same PHY block, which is
similar to the one on RZ/G2L but differs in clocks, resets, and register
bits. To account for these differences, a new compatible string
`renesas,usb2-phy-r9a09g077` is introduced.

The RZ/N2H SoC uses the same PHY as RZ/T2H, so it reuses the RZ/T2H
compatible string as a fallback.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250808215209.3692744-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2025-08-20 22:21:51 +05:30
Lad Prabhakar
00399bbe02 dt-bindings: phy: renesas,usb2-phy: Document RZ/V2N SoC support 
Document support for the USB2.0 phy found on the Renesas RZ/V2N
(R9A09G056) SoC. The USB2.0 phy is functionally identical to that on the
RZ/V2H(P) SoC, so no driver changes are needed. The existing
`renesas,usb2-phy-r9a09g057` compatible will be used as a fallback
for the RZ/V2N SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250528133858.168582-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2025-06-15 20:06:04 +05:30
Lad Prabhakar
9c4fbefc96 dt-bindings: phy: renesas,usb2-phy: Document RZ/V2H(P) SoC 
Document USB2.0 phy bindings for RZ/V2H(P) ("R9A09gG57") SoC.

RZ/V2H(P) USB2.0 phy is similar to one found on the RZ/G2L SoC, but it
needs additional configuration to be done as compared RZ/G2L USB2.0 phy.
To handle this difference a SoC specific compat string is added for
RZ/V2H(P) SoC.

Like the RZ/G2L SoC, the RZ/V2H(P) USB2.0 PHY requires the `resets`
property and has two clocks.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250414145729.343133-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2025-05-14 12:14:59 +01:00
Lad Prabhakar
31eebeef8c dt-bindings: phy: renesas,usb2-phy: Add clock constraint for RZ/G2L family 
The RZ/G2L family requires two clocks for USB2 PHY, which are already
defined in the DTSI files. Add a constraint in the DT binding document
to ensure validation with `dtbs_check`.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250414145729.343133-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2025-05-14 12:14:58 +01:00
Claudiu Beznea
f3c8498551 dt-bindings: phy: renesas,usb2-phy: Document RZ/G3S phy bindings 
Document the RZ/G3S PHY bindings. The RZ/G3S USB PHY is almost identical
with the RZ/G2L USB PHY. The difference is that there is a hardware
limitation on the max burst size used when the BUS master interface
issues a transfer request for RZ/G3S that is configured though PHY
registers.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240822152801.602318-12-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2024-08-30 13:33:44 +05:30
Biju Das
bc055a50a8 dt-bindings: phy: renesas,usb2-phy: Document RZ/G2UL phy bindings 
Document USB phy bindings for RZ/G2UL SoC. RZ/G2UL USB phy is identical to
one found on the RZ/G2L SoC. No driver changes are required as generic
compatible string "renesas,rzg2l-usb2-phy" will be used as a fallback.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220423134752.143090-1-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2022-05-02 17:10:09 +05:30
Lad Prabhakar
7a37e890bd dt-bindings: phy: renesas,usb2-phy: Document RZ/V2L phy bindings 
Document USB phy bindings for RZ/V2L SoC. RZ/V2L USB phy is identical to
one found on the RZ/G2L SoC. No driver changes are required as generic
compatible string "renesas,rzg2l-usb2-phy" will be used as a fallback.

While at it, drop the comment "RZ/G2L family" for "renesas,rzg2l-usb2-phy"
compatible string as this will avoid changing the line for every new SoC
addition.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220301124255.16836-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2022-03-02 19:53:27 +05:30
Biju Das
5711af410c dt-bindings: phy: renesas,usb2-phy: Document RZ/G2L phy bindings 
Document USB phy bindings for RZ/G2L SoC.

RZ/G2L USB2.0 phy uses line ctrl register for OTG_ID pin changes. It uses
a different OTG-BC interrupt bit for device recognition. Apart from this,
the PHY reset is controlled by USBPHY control IP and Document reset is a
required property.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210727185527.19907-3-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2021-08-06 18:12:30 +05:30
Rob Herring
972d6a7dce dt-bindings: Drop redundant minItems/maxItems 
If a property has an 'items' list, then a 'minItems' or 'maxItems' with the
same size as the list is redundant and can be dropped. Note that is DT
schema specific behavior and not standard json-schema behavior. The tooling
will fixup the final schema adding any unspecified minItems/maxItems.

This condition is partially checked with the meta-schema already, but
only if both 'minItems' and 'maxItems' are equal to the 'items' length.
An improved meta-schema is pending.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for MMC
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210615191543.1043414-1-robh@kernel.org
 2021-06-21 13:56:46 -06:00
Rob Herring
9183908e70 dt-bindings: Fix errors in 'if' schemas 
Properties in if/then schemas weren't getting checked by the meta-schemas.
Enabling meta-schema checks finds several errors.

The use of an 'items' schema (as opposed to the list form) is wrong in
some cases as it applies to all entries. 'contains' is the correct schema
to use in the case of multiple entries.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-crypto@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-leds@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-By: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210202205544.24812-3-robh@kernel.org
 2021-02-04 09:08:20 -06:00
Lad Prabhakar
f199d6a296 dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support 
Document SoC specific bindings for RZ/G2H (r8a774e1) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1594919915-5225-6-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2020-07-20 12:04:59 +05:30
Yoshihiro Shimoda
ca432812d9 dt-bindings: phy: renesas: usb2-phy: add r8a77961 support 
This patch adds support for r8a77961 (R-Car M3-W+).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1585301636-24399-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 2020-05-18 19:30:56 +05:30
Yoshihiro Shimoda
45037dd681 dt-bindings: phy: renesas: usb2-phy: convert bindings to json-schema 
Convert Renesas R-Car generation 3 USB 2.0 PHY bindings documentation
to json-schema.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1585301636-24399-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 2020-05-18 19:30:56 +05:30