From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>,
Mark Brown <broonie@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>,
cros-qcom-dts-watchers@chromium.org
Cc: linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/7] arm64: dts: qcom: talos: Add QSPI support
Date: Wed, 15 Apr 2026 11:49:07 +0200 [thread overview]
Message-ID: <e89cca9b-e67b-4d5a-aecd-6c2001d079ac@oss.qualcomm.com> (raw)
In-Reply-To: <20260414-spi-nor-v2-4-bcca40de4b5f@oss.qualcomm.com>
On 4/14/26 7:08 PM, Viken Dadhaniya wrote:
> The Talos (QCS615) platform includes a QSPI controller used for accessing
> external flash storage. Add the QSPI OPP table, TLMM pinmux entries, and
> the QSPI controller node to enable support for this hardware.
>
> Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
> ---
[...]
> + interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> + &config_noc SLAVE_QSPI QCOM_ICC_TAG_ACTIVE_ONLY>,
> + <&aggre1_noc MASTER_QSPI QCOM_ICC_TAG_ACTIVE_ONLY
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>;
The qspi-memory path _must_ be TAG_ALWAYS, since APSS may collapse
at any time (which could drop the vote in the ACTIVE_ONLY case), and
a DMA operation may still be ongoing
Konrad
next prev parent reply other threads:[~2026-04-15 9:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-14 17:08 [PATCH v2 0/7] Add QSPI support for QCS615 and improve interconnect handling Viken Dadhaniya
2026-04-14 17:08 ` [PATCH v2 1/7] dt-bindings: spi: qcom,spi-qcom-qspi: Add qcom,qcs615-qspi compatible Viken Dadhaniya
2026-04-15 7:56 ` Krzysztof Kozlowski
2026-04-14 17:08 ` [PATCH v2 2/7] spi: qcom-qspi: Fix incomplete error handling in runtime PM Viken Dadhaniya
2026-04-14 17:46 ` Dmitry Baryshkov
2026-04-15 9:46 ` Konrad Dybcio
2026-04-14 17:08 ` [PATCH v2 3/7] spi: qcom-qspi: Add interconnect support for memory path Viken Dadhaniya
2026-04-14 17:47 ` Dmitry Baryshkov
2026-04-14 17:08 ` [PATCH v2 4/7] arm64: dts: qcom: talos: Add QSPI support Viken Dadhaniya
2026-04-14 17:47 ` Dmitry Baryshkov
2026-04-15 9:49 ` Konrad Dybcio [this message]
2026-04-14 17:08 ` [PATCH v2 5/7] arm64: dts: qcom: qcs615-ride: enable QSPI and NOR flash Viken Dadhaniya
2026-04-15 9:49 ` Konrad Dybcio
2026-04-14 17:08 ` [PATCH v2 6/7] arm64: dts: qcom: kodiak: Add QSPI memory interconnect path Viken Dadhaniya
2026-04-14 17:56 ` Dmitry Baryshkov
2026-04-15 9:49 ` Konrad Dybcio
2026-04-14 17:08 ` [PATCH v2 7/7] arm64: dts: qcom: sc7180: " Viken Dadhaniya
2026-04-14 17:56 ` Dmitry Baryshkov
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