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From: Peng Fan <peng.fan@oss.nxp.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	Lucas Stach <l.stach@pengutronix.de>,
	Jacky Bai <ping.bai@nxp.com>, Frank Li <frank.li@nxp.com>
Cc: linux-pm@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Peng Fan <peng.fan@nxp.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH v2] pmdomain: imx: Fix i.MX8MP VC8000E power up sequence
Date: Thu, 12 Mar 2026 16:40:36 +0800	[thread overview]
Message-ID: <abJ8BJvqinG8UVRw@shlinux89> (raw)
In-Reply-To: <20260228-imx8mp-vc8000e-pm-v2-1-fd255a0d5958@nxp.com>

Hi All,

Any comments?

On Sat, Feb 28, 2026 at 09:12:45AM +0800, Peng Fan (OSS) wrote:
>From: Peng Fan <peng.fan@nxp.com>
>
>Per errata[1]:
>ERR050531: VPU_NOC power down handshake may hang during VC8000E/VPUMIX
>power up/down cycling.
>Description: VC8000E reset de-assertion edge and AXI clock may have a
>timing issue.
>Workaround: Set bit2 (vc8000e_clk_en) of BLK_CLK_EN_CSR to 0 to gate off
>both AXI clock and VC8000E clock sent to VC8000E and AXI clock sent to
>VPU_NOC m_v_2 interface during VC8000E power up(VC8000E reset is
>de-asserted by HW)
>

Thanks,
Peng

  reply	other threads:[~2026-03-12  8:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-28  1:12 [PATCH v2] pmdomain: imx: Fix i.MX8MP VC8000E power up sequence Peng Fan (OSS)
2026-03-12  8:40 ` Peng Fan [this message]
2026-03-12  8:58 ` Daniel Baluta

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