linux-hardening - Re: [PATCH 05/25] dt-bindings: rtc: Add RDA Micro RDA8810PL RTC

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Message-ID: <20250917-contort-sassy-df07fd7515a0@spud>
Date: Wed, 17 Sep 2025 21:46:14 +0100
From: Conor Dooley <conor@...nel.org>
To: Dang Huynh <dang.huynh@...nlining.org>
Cc: Manivannan Sadhasivam <mani@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Sebastian Reichel <sre@...nel.org>, Vinod Koul <vkoul@...nel.org>,
	Kees Cook <kees@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-unisoc@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-rtc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-pm@...r.kernel.org, dmaengine@...r.kernel.org,
	linux-hardening@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: Re: [PATCH 05/25] dt-bindings: rtc: Add RDA Micro RDA8810PL RTC

On Wed, Sep 17, 2025 at 03:07:22AM +0700, Dang Huynh wrote:
> Add documentation describing the RTC found in RDA8810PL SoC.
> 
> Signed-off-by: Dang Huynh <dang.huynh@...nlining.org>
> ---
>  .../devicetree/bindings/rtc/rda,8810pl-rtc.yaml    | 30 ++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/rda,8810pl-rtc.yaml b/Documentation/devicetree/bindings/rtc/rda,8810pl-rtc.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..3ceae294921cc3211cd775d9b3890393196faf82
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/rda,8810pl-rtc.yaml
> @@ -0,0 +1,30 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/rda,8810pl-rtc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: RDA Micro RDA8810PL Real Time Clock
> +
> +maintainers:
> +  - Dang Huynh <dang.huynh@...nlining.org>
> +
> +properties:
> +  compatible:
> +    const: rda,8810pl-rtc
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg

Your driver implements functions that turn on an alarm irq, but there is
none mentioned here. What's going on there?

Additionally, there's no clocks property? For an onboard RTC I'd have
expected there to be a clock sourced outside of the block.

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    rtc@...6000 {
> +      compatible = "rda,8810pl-rtc";
> +      reg = <0x1a06000 0x1000>;
> +    };
> 
> -- 
> 2.51.0

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