From: Krzysztof Kozlowski <krzk@kernel.org>
To: Jun Yan <jerrysteve1101@gmail.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-leds@vger.kernel.org
Cc: lee@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, luccafachinetti@gmail.com,
pzalewski@thegoodpenguin.co.uk, daniel@zonque.org
Subject: Re: [PATCH v2 3/5] dt-bindings: leds: leds-is31fl32xx: Add shutdown-gpios property
Date: Wed, 29 Apr 2026 09:27:43 +0200 [thread overview]
Message-ID: <b50cbdf4-a101-4ec5-8767-b62dcdb7d1e9@kernel.org> (raw)
In-Reply-To: <20260428023401.330308-4-jerrysteve1101@gmail.com>
On 28/04/2026 04:33, Jun Yan wrote:
> The IS31FL32XX series features an SDB shutdown pin.
> Driving it low (active low) places the chip into hardware shutdown mode
> for power saving, while all register contents are preserved
> and registers are not reset.
>
> Add shutdown-gpios property to describe the GPIO connected to the
> SDB pin of IS31FL32XX series LED controllers.
>
> Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
> ---
> .../devicetree/bindings/leds/issl,is31fl32xx.yaml | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml b/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
> index 25ce67940c88..4654aa07dc63 100644
> --- a/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
> +++ b/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
> @@ -45,6 +45,15 @@ properties:
> When present, the chip's PWM will operate at ~22kHz as opposed
> to ~3kHz to move the operating frequency out of the audible range.
>
> + shutdown-gpios:
powerdown-gpios (see gpio-consumer-common)
> + maxItems: 1
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-04-29 7:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-28 2:33 [PATCH v2 0/5] leds: Add shutdown gpio for is31fl32xx Jun Yan
2026-04-28 2:33 ` [PATCH v2 1/5] dt-bindings: leds: is31fl32xx: convert the binding to yaml Jun Yan
2026-04-28 2:33 ` [PATCH v2 2/5] dt-bindings: leds: leds-is31fl32xx: add support for is31fl3236a Jun Yan
2026-04-28 2:33 ` [PATCH v2 3/5] dt-bindings: leds: leds-is31fl32xx: Add shutdown-gpios property Jun Yan
2026-04-29 7:27 ` Krzysztof Kozlowski [this message]
2026-04-28 2:34 ` [PATCH v2 4/5] leds: is31fl32xx: Add shutdown pin to exit hardware shutdown mode Jun Yan
2026-04-28 2:34 ` [PATCH v2 5/5] leds: is31f132xx: Fix missing brightness_steps for is31f13236 Jun Yan
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