From: "Heiko Stübner" <heiko@sntech.de>
To: tomeu@tomeuvizoso.net, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, joro@8bytes.org, will@kernel.org,
robin.murphy@arm.com, ulfh@kernel.org, p.zabel@pengutronix.de,
ogabbay@kernel.org, zhangqing@rock-chips.com,
Jiaxing Hu <gahing@gahingwoo.com>
Cc: royalnet026@gmail.com, abel.vesa@oss.qualcomm.com,
sebastian.reichel@collabora.com, sidong.yang@furiosa.ai,
u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com,
diederik@cknow-tech.com, alchark@flipper.net, leonard@lausen.nl,
jeff.hugo@oss.qualcomm.com, rfoss@kernel.org,
dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org, iommu@lists.linux.dev,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Jiaxing Hu <gahing@gahingwoo.com>
Subject: Re: [PATCH v15 10/15] pmdomain: rockchip: cycle an optional power-domain reset on power-on
Date: Tue, 03 Nov 2026 23:36:51 +0100 [thread overview]
Message-ID: <2685454.vzjCzTo3RI@diego> (raw)
In-Reply-To: <20261101082307.151957-11-gahing@gahingwoo.com>
Am Sonntag, 1. November 2026, 09:23:02 Mitteleuropäische Normalzeit schrieb Jiaxing Hu:
> Some Rockchip domains come out of power-on with their bus interface in an
> undefined state. On the RK3576 NPU this shows up as a hang on the first
> register access after the domain is switched on, and pulsing the domain's
> reset at this point clears it.
>
> Take the domain node's reset if it has one, and pulse it between
> releasing idle and restoring QoS. The reset is optional, so domains that
> do not list one are unaffected.
>
> Signed-off-by: Jiaxing Hu <gahing@gahingwoo.com>
> Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
WARNING: multiple messages have this Message-ID (diff)
From: "Heiko Stübner" <heiko@sntech.de>
To: tomeu@tomeuvizoso.net, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, joro@8bytes.org, will@kernel.org,
robin.murphy@arm.com, ulfh@kernel.org, p.zabel@pengutronix.de,
ogabbay@kernel.org, zhangqing@rock-chips.com,
Jiaxing Hu <gahing@gahingwoo.com>
Cc: royalnet026@gmail.com, abel.vesa@oss.qualcomm.com,
sebastian.reichel@collabora.com, sidong.yang@furiosa.ai,
u.kleine-koenig@baylibre.com, chaoyi.chen@rock-chips.com,
diederik@cknow-tech.com, alchark@flipper.net, leonard@lausen.nl,
jeff.hugo@oss.qualcomm.com, rfoss@kernel.org,
dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org, iommu@lists.linux.dev,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Jiaxing Hu <gahing@gahingwoo.com>
Subject: Re: [PATCH v15 10/15] pmdomain: rockchip: cycle an optional power-domain reset on power-on
Date: Tue, 03 Nov 2026 23:36:51 +0100 [thread overview]
Message-ID: <2685454.vzjCzTo3RI@diego> (raw)
In-Reply-To: <20261101082307.151957-11-gahing@gahingwoo.com>
Am Sonntag, 1. November 2026, 09:23:02 Mitteleuropäische Normalzeit schrieb Jiaxing Hu:
> Some Rockchip domains come out of power-on with their bus interface in an
> undefined state. On the RK3576 NPU this shows up as a hang on the first
> register access after the domain is switched on, and pulsing the domain's
> reset at this point clears it.
>
> Take the domain node's reset if it has one, and pulse it between
> releasing idle and restoring QoS. The reset is optional, so domains that
> do not list one are unaffected.
>
> Signed-off-by: Jiaxing Hu <gahing@gahingwoo.com>
> Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
next prev parent reply other threads:[~2026-11-03 22:37 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-01 8:22 [PATCH v15 00/15] accel/rocket: RK3576 NPU (RKNN) enablement Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-01 8:22 ` [PATCH v15 01/15] accel/rocket: request the core clocks by name Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-03 22:42 ` Heiko Stübner
2026-11-03 22:42 ` Heiko Stübner
2026-11-04 10:21 ` Heiko Stübner
2026-11-04 10:21 ` Heiko Stübner
2026-11-01 8:22 ` [PATCH v15 02/15] accel/rocket: take the completion register writes under job_lock Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-03 22:45 ` Heiko Stübner
2026-11-03 22:45 ` Heiko Stübner
2026-11-01 8:22 ` [PATCH v15 03/15] accel/rocket: wait for a running IRQ handler before resetting a core Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-01 8:55 ` sashiko-bot
2026-11-03 22:47 ` Heiko Stübner
2026-11-03 22:47 ` Heiko Stübner
2026-11-03 22:50 ` Heiko Stübner
2026-11-03 22:50 ` Heiko Stübner
2026-11-04 12:55 ` Tomeu Vizoso
2026-11-04 12:55 ` Tomeu Vizoso
2026-11-01 8:22 ` [PATCH v15 04/15] accel/rocket: let the core suspend after a reset Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-01 8:46 ` sashiko-bot
2026-11-04 10:25 ` Heiko Stübner
2026-11-04 10:25 ` Heiko Stübner
2026-11-01 8:22 ` [PATCH v15 05/15] accel/rocket: factor the completion tail out of the IRQ handler Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-04 10:27 ` Heiko Stübner
2026-11-04 10:27 ` Heiko Stübner
2026-11-01 8:22 ` [PATCH v15 06/15] dt-bindings: npu: rockchip: add rockchip,rk3576-rknn-core Jiaxing Hu
2026-11-01 8:22 ` [PATCH v15 06/15] dt-bindings: npu: rockchip: add rockchip, rk3576-rknn-core Jiaxing Hu
2026-11-01 8:22 ` [PATCH v15 06/15] dt-bindings: npu: rockchip: add rockchip,rk3576-rknn-core Jiaxing Hu
2026-11-01 8:37 ` [PATCH v15 06/15] dt-bindings: npu: rockchip: add rockchip, rk3576-rknn-core sashiko-bot
2026-11-01 8:22 ` [PATCH v15 07/15] dt-bindings: power: rockchip: allow resets in a power domain node Jiaxing Hu
2026-11-01 8:22 ` Jiaxing Hu
2026-11-01 8:23 ` [PATCH v15 08/15] dt-bindings: iommu: rockchip: describe the RK3576 NPU MMU Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-04 11:02 ` Heiko Stübner
2026-11-04 11:02 ` Heiko Stübner
2026-11-01 8:23 ` [PATCH v15 09/15] pmdomain: rockchip: add optional per-domain power-on settle delay Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-01 8:47 ` sashiko-bot
2026-11-03 22:34 ` Heiko Stübner
2026-11-03 22:34 ` Heiko Stübner
2026-11-01 8:23 ` [PATCH v15 10/15] pmdomain: rockchip: cycle an optional power-domain reset on power-on Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-03 22:36 ` Heiko Stübner [this message]
2026-11-03 22:36 ` Heiko Stübner
2026-11-01 8:23 ` [PATCH v15 11/15] accel/rocket: select the per-core clock and reset counts from match data Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-02 1:52 ` Chaoyi Chen
2026-11-02 1:52 ` Chaoyi Chen
2026-11-01 8:23 ` [PATCH v15 12/15] accel/rocket: add RK3576 NPU (RKNN) support Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-01 8:23 ` [PATCH v15 13/15] arm64: dts: rockchip: add NPU core domain clocks and resets to rk3576 Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-01 8:23 ` [PATCH v15 14/15] arm64: dts: rockchip: add NPU (RKNN) nodes " Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-04 10:53 ` Heiko Stübner
2026-11-04 10:53 ` Heiko Stübner
2026-11-01 8:23 ` [PATCH v15 15/15] arm64: dts: rockchip: enable the NPU on rk3576-rock-4d Jiaxing Hu
2026-11-01 8:23 ` Jiaxing Hu
2026-11-03 22:39 ` [PATCH v15 00/15] accel/rocket: RK3576 NPU (RKNN) enablement Heiko Stübner
2026-11-03 22:39 ` Heiko Stübner
2026-11-04 10:09 ` Tomeu Vizoso
2026-11-04 10:09 ` Tomeu Vizoso
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