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From: Michal Wilczynski <m.wilczynski@samsung.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org,
	krzk+dt@kernel.org, conor+dt@kernel.org, drew@pdp7.com,
	guoren@kernel.org, wefu@redhat.com, jassisinghbrar@gmail.com,
	paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, frank.binns@imgtec.com,
	matt.coster@imgtec.com, maarten.lankhorst@linux.intel.com,
	mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com,
	simona@ffwll.ch, jszhang@kernel.org, p.zabel@pengutronix.de,
	m.szyprowski@samsung.com, linux-clk@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, dri-devel@lists.freedesktop.org,
	linux-pm@vger.kernel.org
Subject: Re: [RFC v3 05/18] pmdomain: thead: Add power-domain driver for TH1520
Date: Tue, 28 Jan 2025 16:59:42 +0100	[thread overview]
Message-ID: <4c8a5979-c0e0-460f-9809-4cf8b10e40ce@samsung.com> (raw)
In-Reply-To: <CAPDyKFrKKZ4RL5y+sCKAOK71ap7O3aTTc6rY9NrvcHt4hh6EVQ@mail.gmail.com>



On 1/21/25 10:55, Ulf Hansson wrote:
> On Mon, 20 Jan 2025 at 18:21, Michal Wilczynski
> <m.wilczynski@samsung.com> wrote:
>>
>> The T-Head TH1520 SoC contains multiple power islands that can be
>> programmatically turned on and off using the AON (Always-On) protocol
>> and a hardware mailbox [1]. The relevant mailbox driver has already been
>> merged into the mainline kernel in commit 5d4d263e1c6b ("mailbox:
>> Introduce support for T-head TH1520 Mailbox driver");
>>
>> This commit introduces a power-domain driver for the TH1520 SoC, which
>> is using AON firmware protocol to communicate with E902 core through the
>> hardware mailbox. This way it can send power on/off commands to the E902
>> core.
>>
>> Link: https://protect2.fireeye.com/v1/url?k=aca9147a-cd220149-aca89f35-000babff9bb7-dfbb0fd97ae06334&q=1&e=7a720b7b-4489-48b9-b901-404180e7bc23&u=https%3A%2F%2Fopenbeagle.org%2Fbeaglev-ahead%2Fbeaglev-ahead%2F-%2Fblob%2Fmain%2Fdocs%2FTH1520%2520System%2520User%2520Manual.pdf [1]
>>
>> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
> 
> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> 
> I guess this depends on patch2 and patch3. Not sure what's the best
> way to merge this, but I can certainly funnel them all three through
> my pmdomain tree if that sounds feasible. Just let me know.
> 
> Kind regards
> Uffe

Thanks Ulf. I've made some changes based on my discussion with
Krzysztof, so I'll hold off on adding your Reviewed-by tag until v4.
Once we've addressed any remaining comments, it would be great if you
could take the firmware and power-domain patches through your tree.

> 
>> ---


  reply	other threads:[~2025-01-28 15:59 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20250120172119eucas1p135434171194546bc2df259bfd21458e1@eucas1p1.samsung.com>
2025-01-20 17:20 ` [RFC v3 00/18] Enable drm/imagination BXM-4-64 Support for LicheePi 4A Michal Wilczynski
2025-01-20 17:20   ` [RFC v3 01/18] dt-bindings: clock: Add VO subsystem clock controller support Michal Wilczynski
2025-01-21  9:47     ` Krzysztof Kozlowski
2025-01-21 21:29       ` Michal Wilczynski
2025-01-22  7:44         ` Krzysztof Kozlowski
2025-01-20 17:20   ` [RFC v3 02/18] clk: thead: Add clock support for VO subsystem in T-Head TH1520 SoC Michal Wilczynski
2025-01-20 17:20   ` [RFC v3 03/18] dt-bindings: firmware: thead,th1520: Add support for firmware node Michal Wilczynski
2025-01-21  9:52     ` Krzysztof Kozlowski
2025-01-21 21:31       ` Michal Wilczynski
2025-01-22  7:44         ` Krzysztof Kozlowski
2025-01-20 17:20   ` [RFC v3 04/18] firmware: thead: Add AON firmware protocol driver Michal Wilczynski
2025-01-21  9:56     ` Krzysztof Kozlowski
2025-01-21 21:32       ` Michal Wilczynski
2025-01-28 15:54       ` Michal Wilczynski
2025-01-28 16:27         ` Michal Wilczynski
2025-01-29  7:24         ` Krzysztof Kozlowski
2025-01-20 17:20   ` [RFC v3 05/18] pmdomain: thead: Add power-domain driver for TH1520 Michal Wilczynski
2025-01-21  9:55     ` Ulf Hansson
2025-01-28 15:59       ` Michal Wilczynski [this message]
2025-01-21 10:02     ` Krzysztof Kozlowski
2025-01-21 21:42       ` Michal Wilczynski
2025-01-22  7:46         ` Krzysztof Kozlowski
2025-01-22 11:26           ` Michal Wilczynski
2025-01-22 11:36             ` Krzysztof Kozlowski
2025-01-20 17:20   ` [RFC v3 06/18] riscv: Enable PM_GENERIC_DOMAINS for T-Head SoCs Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 07/18] dt-bindings: reset: Add T-HEAD TH1520 SoC Reset Controller Michal Wilczynski
2025-01-21  8:35     ` Philipp Zabel
2025-01-21 21:58       ` Michal Wilczynski
2025-01-22  8:22         ` Krzysztof Kozlowski
2025-01-20 17:21   ` [RFC v3 08/18] reset: thead: Add TH1520 reset controller driver Michal Wilczynski
2025-01-21  8:40     ` Philipp Zabel
2025-01-20 17:21   ` [RFC v3 09/18] drm/imagination: Add reset controller support for GPU initialization Michal Wilczynski
2025-01-21  8:24     ` Philipp Zabel
2025-01-20 17:21   ` [RFC v3 10/18] dt-bindings: gpu: Add 'resets' property " Michal Wilczynski
2025-01-21 10:09     ` Krzysztof Kozlowski
2025-01-20 17:21   ` [RFC v3 11/18] dt-bindings: gpu: Add compatibles for T-HEAD TH1520 GPU Michal Wilczynski
2025-01-21 10:08     ` Krzysztof Kozlowski
2025-01-20 17:21   ` [RFC v3 12/18] drm/imagination: Add support for IMG BXM-4-64 GPU Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 13/18] drm/imagination: Enable PowerVR driver for RISC-V Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 14/18] riscv: dts: thead: Add device tree VO clock controller Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 15/18] riscv: dts: thead: Add mailbox node Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 16/18] riscv: dts: thead: Introduce power domain nodes with aon firmware Michal Wilczynski
2025-01-21 10:11     ` Krzysztof Kozlowski
2025-01-20 17:21   ` [RFC v3 17/18] riscv: dts: thead: Introduce reset controller node Michal Wilczynski
2025-01-20 17:21   ` [RFC v3 18/18] riscv: dts: thead: Add GPU node to TH1520 device tree Michal Wilczynski

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