From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Loic Poulain <loic.poulain@oss.qualcomm.com>,
Robert Foss <rfoss@kernel.org>,
Andi Shyti <andi.shyti@kernel.org>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Luca Weiss <luca@lucaweiss.eu>
Cc: linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, vladimir.zapolskiy@linaro.org,
konradybcio@kernel.org, stephan.gerhold@linaro.org
Subject: Re: [PATCH v4 3/5] i2c: qcom-cci: Add 19.2 MHz timings for the v2 CCI
Date: Tue, 18 Aug 2026 14:06:59 +0200 [thread overview]
Message-ID: <18880390-0407-4efd-bd2e-1595193d78e0@oss.qualcomm.com> (raw)
In-Reply-To: <20260801-cci-clk-fix-v4-3-e1d80da54e01@oss.qualcomm.com>
On 8/1/26 10:10 PM, Loic Poulain wrote:
> The v2 CCI (msm8996/sdm630/msm8953/...) is normally clocked at 37.5 MHz,
> but its CCI clock can also be configured and run at 19.2 MHz. Add the
> Standard and Fast timing sets calibrated for 19.2 MHz so that a v2
> controller left at that rate still has valid timings for those modes
> (Fast+ requires 37.5 MHz).
The v2 naming is misleading btw - we have e.g.:
v1.0.7 on 8974
v1.1.0 on 8916
v1.4.0 on 8996
v1.6.0 on 8998
v1.6.3 on 630/660
v1.7.0 on 845-8550+hamoa
otherwise
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-08-18 12:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-01 20:10 [PATCH v4 0/5] i2c: qcom-cci: Enforce the required CCI clock rate Loic Poulain
2026-08-01 20:10 ` [PATCH v4 1/5] i2c: qcom-cci: Switch msm8953 to the CCI v2 timing/rate config Loic Poulain
2026-08-18 11:54 ` Konrad Dybcio
2026-08-19 11:10 ` Vladimir Zapolskiy
2026-08-01 20:10 ` [PATCH v4 2/5] i2c: qcom-cci: Support per-mode CCI clock rates Loic Poulain
2026-08-18 11:59 ` Konrad Dybcio
2026-08-19 11:24 ` Vladimir Zapolskiy
2026-08-01 20:10 ` [PATCH v4 3/5] i2c: qcom-cci: Add 19.2 MHz timings for the v2 CCI Loic Poulain
2026-08-18 12:06 ` Konrad Dybcio [this message]
2026-08-19 11:26 ` Vladimir Zapolskiy
2026-08-01 20:10 ` [PATCH v4 4/5] i2c: qcom-cci: Share the timing table across CCI revisions Loic Poulain
2026-08-18 12:07 ` Konrad Dybcio
2026-08-19 11:30 ` Vladimir Zapolskiy
2026-08-01 20:10 ` [PATCH v4 5/5] i2c: qcom-cci: Enforce the required CCI clock rate Loic Poulain
2026-08-18 12:16 ` Konrad Dybcio
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