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Sat, 12 Sep 2026 06:04:54 -0700 (PDT) Received: from hu-jseerapu-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33ba4f1e434sm13665036eec.22.2026.09.12.06.04.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Sep 2026 06:04:53 -0700 (PDT) From: Jyothi Kumar Seerapu Subject: [PATCH v2 0/2] i2c: Add I2C High-Speed mode support for qcom-geni Date: Sat, 12 Sep 2026 18:34:21 +0530 Message-Id: <20260912-i2c-hs-v2-0-b0901791e244@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIANVNpWoC/zWNQQ6CMBBFr0JmbUlboRZW3sOwwDLKGKHaAaIh3 N2CYTPJS95/MwNjIGQokxkCTsTk+wj6kIBr6/6OgprIoKU20molSDvRssikPRmby8KaHKL8Cni jzxa6VH/m8fpAN6zr1WiJBx++26dJrd4ezfbopIQUtmmKDHNnlDqePXP6Huun812XxgPVsiw/W We8qbUAAAA= X-Change-ID: 20260821-i2c-hs-408768509865 To: Vinod Koul , Frank Li , Mukesh Kumar Savaliya , Viken Dadhaniya , Andi Shyti Cc: linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, Jyothi Kumar Seerapu X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; 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The underlying QUP hardware supports I2C HS mode starting with QUPv3 core version 4.3, per the GENI/QUP Hardware Programming Guide. Add driver support to enable HS-mode transfers based on that QUP core version. Patch 1 (dmaengine: qcom-gpi) adds a CONFIG1 TRE to convey HS-mode timing parameters (tcycle_cnt/tlow_cnt) for GPI DMA transfers. Patch 2 (i2c: qcom-geni) adds HS-mode support for FIFO/SE-DMA transfers, including the required clock/timing configuration and master-code preamble. Signed-off-by: Jyothi Kumar Seerapu --- Changes in v2: - Update commit descriptions across the series. - Refine code comments in the qcom-gpi DMA and i2c-qcom drivers based on review feedback. - Fix issues reported by the Sashiko bot. - Optimize geni_se_setup_m_cmd or I2C HS mode condition in I2C QCOM driver. - Link to v1: https://lore.kernel.org/all/20260824-i2c-hs-v1-0-8dd94e5c6113@oss.qualcomm.com/ To: Vinod Koul To: Frank Li To: Mukesh Kumar Savaliya To: Viken Dadhaniya To: Andi Shyti Cc: linux-arm-msm@vger.kernel.org Cc: dmaengine@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-i2c@vger.kernel.org --- Jyothi Kumar Seerapu (2): dmaengine: qcom-gpi: Add I2C High-Speed mode configuration support i2c: qcom-geni: Add support for I2C High-Speed mode drivers/dma/qcom/gpi.c | 56 ++++++++++++++-- drivers/i2c/busses/i2c-qcom-geni.c | 127 +++++++++++++++++++++++++++++++++---- include/linux/dma/qcom-gpi-dma.h | 28 +++++++- 3 files changed, 189 insertions(+), 22 deletions(-) --- base-commit: 7079a12d7506b07fb53b54a664bfad5fa9b16d70 change-id: 20260821-i2c-hs-408768509865 Best regards, -- Jyothi Kumar Seerapu