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([2401:4900:1cb5:973e:782a:16ef:897c:10dd]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84fa9526492sm687974b3a.39.2026.08.11.05.42.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 Aug 2026 05:42:10 -0700 (PDT) Message-ID: <8a6581f8-e9e3-4c02-8d26-245c102e7428@oss.qualcomm.com> Date: Tue, 11 Aug 2026 18:12:03 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] i2c: qcom-geni: update frequency table to fix timing parameters To: Kathiravan Thirumoorthy , Viken Dadhaniya , Andi Shyti , Manikanta Mylavarapu , Bjorn Andersson , Konrad Dybcio Cc: Mukesh Kumar Savaliya , linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20260811-ipq5424_i2c_scl_updates-v1-0-bddcb2ceebda@oss.qualcomm.com> <20260811-ipq5424_i2c_scl_updates-v1-1-bddcb2ceebda@oss.qualcomm.com> Content-Language: en-US From: Mukesh Savaliya In-Reply-To: <20260811-ipq5424_i2c_scl_updates-v1-1-bddcb2ceebda@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwODExMDEwNiBTYWx0ZWRfXyx5H/1Zcqo32 gtQqk8qICkRRNRdWUi/2Hur6CF7LkL2Biq4a/2TMwcQ5TVUsWtdLRKOZXygIWhdT0LEIUy6HoLf QCkIhW0eVF3F2IxoQwSkhGNPwg1O0YU= X-Proofpoint-GUID: M9I9Np7WMUKtbszPn9a9qEv2rDQmgTGA X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODExMDEwNiBTYWx0ZWRfXzOC4iCVFqoHh Z24ZaXLagm7g6P5kfvfhuZZQWWoJVnSKbOAHL8iEV6IyQLMmSro/fEMVNZeV93Yl46JQ4QzI2NU nOzIiAwnGVPwBV/UeyiOQ0iAUEgy94LTbcrPtbxaijftVupXXAxCyeV4S/gdeDuT9yrQq54gY3Y Ao0uwgzXOr331XW4gsrEM06uD7PHwzMskzQEwqCJLY5NPigsLDbLH7OiCaM/kkqxNq5XJ75+AJS RaCnEFJ27Db1XMZIlCrYseUGZoWekmJ78gXO9ZUPcRYQQNwv3WM5xj53YnIUqGXTidgHfGNoqPm XERcuv3PMAWFKbZHBzhUBVVEJpZYscJwLM+Wgn9MZRJxMofoOhEwo4abfda85faPj1oupnoPmKY 51LJPmGrWv2b45TJpG7aYjV/Xyyzcbqk9dw47Xey6CbU9Fp1ys+Lvot0eoNJhNStxZFv70XvIt0 L+CULTW40TCrdpyi79w== X-Authority-Analysis: v=2.4 cv=RM+D2Yi+ c=1 sm=1 tr=0 ts=6a7b18a4 cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=EE0sPqqNSvbv8NVRKTEA:9 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-ORIG-GUID: M9I9Np7WMUKtbszPn9a9qEv2rDQmgTGA X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-11_02,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 impostorscore=0 phishscore=0 malwarescore=0 priorityscore=1501 spamscore=0 clxscore=1015 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608110106 On 8/11/2026 2:53 PM, Kathiravan Thirumoorthy wrote: > In IPQ5424, to meet the setup and hold timing requirements in the > standard mode, update the frequency table with the values recommended by Changes are fore FAST mode too, please update the commit log accordingly. > HW design team. > > Also remove the stray space in the I2C_MAX_FAST_MODE_FREQ entry. > > Cc: > Fixes: 85c34532849d ("i2c: qcom-geni: fix I2C frequency table to achieve accurate bus rates") > Fixes: 506bb2ab0075 ("i2c: qcom-geni: Support systems with 32MHz serial engine clock") > Signed-off-by: Kathiravan Thirumoorthy > --- > drivers/i2c/busses/i2c-qcom-geni.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c > index 658636c1ee0e..00013b41a6f5 100644 > --- a/drivers/i2c/busses/i2c-qcom-geni.c > +++ b/drivers/i2c/busses/i2c-qcom-geni.c > @@ -188,8 +188,8 @@ static const struct geni_i2c_clk_fld geni_i2c_clk_map_19p2mhz[] = { > > /* source_clock = 32 MHz */ > static const struct geni_i2c_clk_fld geni_i2c_clk_map_32mhz[] = { > - { I2C_MAX_STANDARD_MODE_FREQ, 8, 14, 18, 38 }, > - { I2C_MAX_FAST_MODE_FREQ, 4, 3, 9, 19 }, > + { I2C_MAX_STANDARD_MODE_FREQ, 12, 9, 10, 26 }, > + { I2C_MAX_FAST_MODE_FREQ, 4, 3, 9, 19 }, > { I2C_MAX_FAST_MODE_PLUS_FREQ, 2, 3, 5, 15 }, > {} > }; >