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Date: Tue, 13 Oct 2026 13:08:30 +0200
From: Andi Shyti <andi.shyti@kernel.org>
To: Loic Poulain <loic.poulain@oss.qualcomm.com>
Cc: Robert Foss <rfoss@kernel.org>, Vinod Koul <vkoul@kernel.org>, 
	Wolfram Sang <wsa@kernel.org>, Bjorn Andersson <andersson@kernel.org>, 
	Todor Tomov <todor.too@gmail.com>, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, 
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i2c: qcom-cci: Fix HALT_ACK reset request being dropped
Message-ID: <as4RHTi0OppNhpOO@zenone.zhora.eu>
References: <20261012-cci-fixes-v1-1-8cd4eb1fc5f9@oss.qualcomm.com>
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In-Reply-To: <20261012-cci-fixes-v1-1-8cd4eb1fc5f9@oss.qualcomm.com>

Hi Loic,

On Mon, Oct 12, 2026 at 02:54:56PM +0200, Loic Poulain wrote:
> A HALT_ACK interrupt indicates that the corresponding I2C master has
> entered the halted state and must be reset before further operation.
> 
> The M0 and M1 HALT_ACK status bits may be asserted simultaneously in a
> single interrupt. However, the interrupt handler currently overwrites
> the reset mask when processing each HALT_ACK condition, causing the
> first reset request to be lost if both events are reported together.
> 
> Accumulate reset requests instead of overwriting them so that both
> masters are properly reset when M0 and M1 HALT_ACK events occur in the
> same interrupt.
> 
> Fixes: e517526195de4 ("i2c: Add Qualcomm CCI I2C driver")
> Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>

pushed to i2c/i2c-fixes.

Thanks,
Andi