linux-kernel - RE: [PATCH 3/4] i2c: tegra: Remove dma_sync

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Message-ID:
 <PH7PR12MB8178E78B8A1EA432F9127890C0892@PH7PR12MB8178.namprd12.prod.outlook.com>
Date: Tue, 6 May 2025 10:04:37 +0000
From: Akhil R <akhilrajeev@...dia.com>
To: "andi.shyti@...nel.org" <andi.shyti@...nel.org>, "robh@...nel.org"
	<robh@...nel.org>, "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
	"onor+dt@...nel.org" <onor+dt@...nel.org>, "thierry.reding@...il.com"
	<thierry.reding@...il.com>, Jon Hunter <jonathanh@...dia.com>, Laxman
 Dewangan <ldewangan@...dia.com>, "digetx@...il.com" <digetx@...il.com>,
	"p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC: Robin Murphy <robin.murphy@....com>
Subject: RE: [PATCH 3/4] i2c: tegra: Remove dma_sync_*() calls

> Calling dma_sync_*() on a buffer from dma_alloc_coherent() is pointless.
> The driver should not be doing its own bounce-buffering if the buffer is
> allocated through dma_alloc_coherent()
> 
> Suggested-by: Robin Murphy <robin.murphy@....com>
> Signed-off-by: Akhil R <akhilrajeev@...dia.com>

Related thread - https://lore.kernel.org/all/acdbf49c-1a73-a0b9-a10d-42d544be3117@arm.com/

Regards,
Akhil