From: Krzysztof Kozlowski <krzk@kernel.org>
To: "Jyothi Kumar Seerapu" <quic_jseerapu@quicinc.com>,
"Vinod Koul" <vkoul@kernel.org>, "Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Andi Shyti" <andi.shyti@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>
Cc: cros-qcom-dts-watchers@chromium.org,
linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-i2c@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
quic_msavaliy@quicinc.com, quic_vtanuku@quicinc.com
Subject: Re: [PATCH v1 1/5] dt-bindings: dmaengine: qcom: gpi: Add additional arg to dma-cell property
Date: Tue, 15 Oct 2024 15:31:37 +0200 [thread overview]
Message-ID: <0c304de2-26c6-49b3-9809-bf1e7619e5b8@kernel.org> (raw)
In-Reply-To: <20241015120750.21217-2-quic_jseerapu@quicinc.com>
On 15/10/2024 14:07, Jyothi Kumar Seerapu wrote:
> When high performance with multiple i2c messages in a single transfer
> is required, employ Block Event Interrupt (BEI) to trigger interrupts
> after specific messages transfer and the last message transfer,
> thereby reducing interrupts.
>
> For each i2c message transfer, a series of Transfer Request Elements(TREs)
> must be programmed, including config tre for frequency configuration,
> go tre for holding i2c address and dma tre for holding dma buffer address,
> length as per the hardware programming guide. For transfer using BEI,
> multiple I2C messages may necessitate the preparation of config, go,
> and tx DMA TREs. However, a channel TRE size of 64 is often insufficient,
> potentially leading to failures due to inadequate memory space.
Please kindly test the patches before you sent them. Upstream is not a
testing service.
Best regards,
Krzysztof
next prev parent reply other threads:[~2024-10-15 13:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-15 12:07 [PATCH v1 0/5] Add Block event interrupt support for I2C protocol Jyothi Kumar Seerapu
2024-10-15 12:07 ` [PATCH v1 1/5] dt-bindings: dmaengine: qcom: gpi: Add additional arg to dma-cell property Jyothi Kumar Seerapu
2024-10-15 13:26 ` Rob Herring (Arm)
2024-10-28 5:57 ` Jyothi Kumar Seerapu
2024-10-15 13:31 ` Krzysztof Kozlowski [this message]
2024-10-25 18:11 ` Jyothi Kumar Seerapu
2024-10-15 14:01 ` Rob Herring
2024-10-28 5:38 ` Jyothi Kumar Seerapu
2024-10-16 4:54 ` Vinod Koul
2024-10-25 18:25 ` Jyothi Kumar Seerapu
2024-10-28 5:50 ` Jyothi Kumar Seerapu
2024-10-15 12:07 ` [PATCH v1 2/5] arm64: dts: qcom: Add support for configuring channel TRE size Jyothi Kumar Seerapu
2024-10-15 13:33 ` Krzysztof Kozlowski
2024-10-16 14:35 ` Bjorn Andersson
2024-10-17 7:10 ` Krzysztof Kozlowski
2024-10-28 5:34 ` Jyothi Kumar Seerapu
2024-10-15 12:07 ` [PATCH v1 3/5] dmaengine: qcom: gpi: Add provision to support TRE size as the fourth argument of dma-cells property Jyothi Kumar Seerapu
2024-10-25 18:17 ` Konrad Dybcio
2024-10-28 6:32 ` Jyothi Kumar Seerapu
2024-10-15 12:07 ` [PATCH v1 4/5] dmaengine: qcom: gpi: Add GPI Block event interrupt support Jyothi Kumar Seerapu
2024-10-15 12:07 ` [PATCH v1 5/5] i2c: i2c-qcom-geni: Add " Jyothi Kumar Seerapu
2024-10-16 15:06 ` Andi Shyti
2024-10-28 6:04 ` Jyothi Kumar Seerapu
2024-10-18 22:11 ` kernel test robot
2024-10-28 6:07 ` Jyothi Kumar Seerapu
2024-10-19 3:12 ` kernel test robot
2024-10-28 6:06 ` Jyothi Kumar Seerapu
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