linux-kernel - Re: [PATCH v5 2/3] mailbox: add Samsung Exynos driver

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Message-ID: <ld6s5c3b6vfvn7l3yjxst6cyrq5xb3r4fmkqcjxawopjzoijjp@gt2ld2bm5562>
Date: Wed, 18 Dec 2024 11:20:32 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: Jassi Brar <jassisinghbrar@...il.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alim Akhtar <alim.akhtar@...sung.com>, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, andre.draszik@...aro.org, 
	peter.griffin@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com, 
	daniel.lezcano@...aro.org, vincent.guittot@...aro.org, ulf.hansson@...aro.org, 
	arnd@...db.de
Subject: Re: [PATCH v5 2/3] mailbox: add Samsung Exynos driver

On Tue, Dec 17, 2024 at 09:40:21AM +0000, Tudor Ambarus wrote:
> The Samsung Exynos mailbox controller has 16 flag bits for hardware
> interrupt generation and a shared register for passing mailbox messages.
> When the controller is used by the ACPM protocol the shared register is
> ignored and the mailbox controller acts as a doorbell. The controller
> just raises the interrupt to APM after the ACPM protocol has written
> the message to SRAM.
> 
> Add support for the Samsung Exynos mailbox controller.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
> ---
>  drivers/mailbox/Kconfig          |  11 +++
>  drivers/mailbox/Makefile         |   2 +
>  drivers/mailbox/exynos-mailbox.c | 184 +++++++++++++++++++++++++++++++++++++++
>  3 files changed, 197 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof