From: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@oss.qualcomm.com>
To: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>,
Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>,
Andi Shyti <andi.shyti@kernel.org>,
Manikanta Mylavarapu <quic_mmanikan@quicinc.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>,
linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org,
Kathiravan Thirumoorthy
<kathiravan.thirumoorthy@oss.qualcomm.com>,
stable@vger.kernel.org
Subject: [PATCH v2 1/2] i2c: qcom-geni: update frequency table to fix timing parameters
Date: Wed, 12 Aug 2026 14:00:55 +0530 [thread overview]
Message-ID: <20260812-ipq5424_i2c_scl_updates-v2-1-e09cd39d01d7@oss.qualcomm.com> (raw)
In-Reply-To: <20260812-ipq5424_i2c_scl_updates-v2-0-e09cd39d01d7@oss.qualcomm.com>
In IPQ5424, to meet the setup and hold timing requirements in the
standard mode, update the frequency table with the values recommended by
HW design team.
Also remove the stray space in the I2C_MAX_FAST_MODE_FREQ entry.
Cc: <stable@vger.kernel.org>
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 <kathiravan.thirumoorthy@oss.qualcomm.com>
---
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 },
{}
};
--
2.34.1
next prev parent reply other threads:[~2026-08-12 8:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-12 8:30 [PATCH v2 0/2] I2C SCL counter updates for Qualcomm IPQ5424 SoC Kathiravan Thirumoorthy
2026-08-12 8:30 ` Kathiravan Thirumoorthy [this message]
2026-08-12 17:45 ` [PATCH v2 1/2] i2c: qcom-geni: update frequency table to fix timing parameters Mukesh Savaliya
2026-08-17 13:55 ` Konrad Dybcio
2026-08-18 10:58 ` Kathiravan Thirumoorthy
2026-08-24 9:22 ` Konrad Dybcio
2026-08-28 0:31 ` Andi Shyti
2026-08-12 8:30 ` [PATCH v2 2/2] i2c: qcom-geni: add I2C frequency table for 32 MHz firmware-based SEs Kathiravan Thirumoorthy
2026-08-12 17:56 ` Mukesh Savaliya
2026-08-24 9:24 ` Konrad Dybcio
2026-08-26 16:57 ` Kathiravan Thirumoorthy
2026-08-25 17:20 ` Praveen Talari
2026-08-26 16:59 ` Kathiravan Thirumoorthy
2026-08-26 17:25 ` Praveen Talari
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