From: Mark Brown <broonie@kernel.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Peter Chen <peter.chen@nxp.com>, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
DTML <devicetree@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-bluetooth@vger.kernel.org
Subject: Re: [PATCH v3 2/7] regulator: qca6390: add support for QCA639x powerup sequence
Date: Tue, 6 Jul 2021 12:55:17 +0100 [thread overview]
Message-ID: <20210706115517.GB4529@sirena.org.uk> (raw)
In-Reply-To: <CAPDyKFo6dmjw0TnaK7=35dq5Si_6YYpeeSa=gU++1od7WkQZ7A@mail.gmail.com>
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On Tue, Jul 06, 2021 at 09:54:03AM +0200, Ulf Hansson wrote:
> On Tue, 22 Jun 2021 at 00:32, Dmitry Baryshkov
> > Qualcomm QCA6390/1 is a family of WiFi + Bluetooth SoCs, with BT part
> > being controlled through the UART and WiFi being present on PCIe
> > bus. Both blocks share common power sources. Add device driver handling
> > power sequencing of QCA6390/1.
> Power sequencing of discoverable buses have been discussed several
> times before at LKML. The last attempt [1] I am aware of, was in 2017
> from Peter Chen. I don't think there is a common solution, yet.
This feels a bit different to the power sequencing problem - it's not
exposing the individual inputs to the device but rather is a block that
manages everything but needs a bit of a kick to get things going (I'd
guess that with ACPI it'd be triggered via AML). It's in the same space
but it's not quite the same issue I think, something that can handle
control of the individual resources might still struggle with this.
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next prev parent reply other threads:[~2021-07-06 12:02 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 22:31 [PATCH v3 0/7] Add support for Qualcomm QCA639x chips family Dmitry Baryshkov
2021-06-21 22:31 ` [PATCH v3 1/7] dt-bindings: regulator: qcom,qca6390: add binding for QCA6390 device Dmitry Baryshkov
2021-06-21 23:11 ` Add support for Qualcomm QCA639x chips family bluez.test.bot
2021-06-21 22:31 ` [PATCH v3 2/7] regulator: qca6390: add support for QCA639x powerup sequence Dmitry Baryshkov
2021-06-22 11:28 ` Mark Brown
2021-06-22 14:17 ` Dmitry Baryshkov
2021-06-22 14:38 ` Mark Brown
2021-06-22 16:46 ` Dmitry Baryshkov
2021-06-22 17:08 ` Mark Brown
2021-07-06 7:54 ` Ulf Hansson
2021-07-06 11:55 ` Mark Brown [this message]
2021-07-08 10:09 ` Ulf Hansson
2021-07-08 11:37 ` Dmitry Baryshkov
2021-07-14 16:47 ` Rob Herring
2021-07-14 17:10 ` Bjorn Andersson
2021-08-10 11:55 ` Ulf Hansson
2021-08-10 16:03 ` Bjorn Andersson
2021-08-12 9:48 ` Ulf Hansson
2021-08-12 11:51 ` Dmitry Baryshkov
2021-07-14 17:23 ` Bjorn Andersson
2021-06-21 22:31 ` [PATCH v3 3/7] Bluetooth: hci_qca: provide default device data Dmitry Baryshkov
2021-07-14 17:27 ` Bjorn Andersson
2021-06-21 22:31 ` [PATCH v3 4/7] Bluetooth: hci_qca: merge qca_power into qca_serdev Dmitry Baryshkov
2021-07-14 17:25 ` Bjorn Andersson
2021-06-21 22:31 ` [PATCH v3 5/7] Bluetooth: hci_qca: merge wcn & non-wcn code paths Dmitry Baryshkov
2021-06-21 22:31 ` [PATCH v3 6/7] Bluetooth: hci_qca: add power sequencer support to qca6390 Dmitry Baryshkov
2021-06-21 22:31 ` [PATCH v3 7/7] arm64: dts: qcom: qrb5165-rb5: add QCA6391 WiFi+BT SoC Dmitry Baryshkov
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