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From: Rob Herring <robh@kernel.org>
To: Kendall Willis <k-willis@ti.com>
Cc: gregkh@linuxfoundation.org, jirislaby@kernel.org,
	krzk+dt@kernel.org, conor+dt@kernel.org, vigneshr@ti.com,
	linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
	devicetree@vger.kernel.org, d-gole@ti.com, vishalm@ti.com,
	sebin.francis@ti.com, msp@baylibre.com, khilman@baylibre.com,
	a-kaur@ti.com, john.ogness@linutronix.de,
	andriy.shevchenko@linux.intel.com, yujiaoliang@vivo.com,
	b-liu@ti.com, u.kleine-koenig@baylibre.com
Subject: Re: [PATCH 2/3] dt-bindings: serial: 8250_omap: Add wakeup pinctrl state
Date: Fri, 5 Sep 2025 15:41:48 -0500	[thread overview]
Message-ID: <20250905204148.GA1313142-robh@kernel.org> (raw)
In-Reply-To: <20250904212455.3729029-3-k-willis@ti.com>

On Thu, Sep 04, 2025 at 04:24:54PM -0500, Kendall Willis wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> Pins associated with the 8250 omap unit can be the source of a wakeup in
> deep sleep states. To be able to wakeup, these pins have to be
> configured in a special way. To support this configuration add the
> default and wakeup pinctrl states. Add support for the sleep state as
> well which is in use by some devicetrees.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Kendall Willis <k-willis@ti.com>
> ---
>  .../devicetree/bindings/serial/8250_omap.yaml   | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/serial/8250_omap.yaml b/Documentation/devicetree/bindings/serial/8250_omap.yaml
> index 851a5291b4be4..1c4040a9f9d0b 100644
> --- a/Documentation/devicetree/bindings/serial/8250_omap.yaml
> +++ b/Documentation/devicetree/bindings/serial/8250_omap.yaml
> @@ -77,6 +77,23 @@ properties:
>          description:
>            List of phandles to system idle states in which UARTs can wakeup the system.
>  
> +  pinctrl-0:
> +    description: Default pinctrl state
> +
> +  pinctrl-1:
> +    description: Can be "sleep" or "wakeup" pinctrl state
> +
> +  pinctrl-names:
> +    description:
> +      When present should contain at least "default" describing the default pin
> +      states. Other states are "sleep" which describes the pinstate when
> +      sleeping and "wakeup" describing the pins if wakeup is enabled.
> +    minItems: 1
> +    items:
> +      - const: default
> +      - const: sleep
> +      - const: wakeup

This doesn't match what 'pinctrl-1' says. Perhaps you want?:

items:
  - const: default
  - enum: [ sleep, wakeup ]

> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.34.1
> 

  reply	other threads:[~2025-09-05 20:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-04 21:24 [PATCH 0/3] serial: 8250: omap: Add wakeup support Kendall Willis
2025-09-04 21:24 ` [PATCH 1/3] dt-bindings: serial: 8250_omap: Update wakeup-source type property Kendall Willis
2025-09-05 18:38   ` Conor Dooley
2025-09-05 18:48     ` Dhruva Gole
2025-09-05 20:38   ` Rob Herring
2025-09-04 21:24 ` [PATCH 2/3] dt-bindings: serial: 8250_omap: Add wakeup pinctrl state Kendall Willis
2025-09-05 20:41   ` Rob Herring [this message]
2025-09-04 21:24 ` [PATCH 3/3] serial: 8250: omap: Support wakeup pinctrl state on suspend Kendall Willis

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