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([2001:8a0:e622:f700:7d3e:f9e7:30e2:91a5]) by smtp.gmail.com with ESMTPSA id by7-20020a056000098700b0033ec94c6277sm20590586wrb.115.2024.04.04.08.53.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Apr 2024 08:54:00 -0700 (PDT) Message-ID: Subject: iMX8M Mini suspend/resume hanging on imx8m_blk_ctrl_power_on() From: vitor To: linux-pm@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: ivitro@gmail.com, vitor.soares@toradex.com, ulf.hansson@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, rafael@kernel.org, geert+renesas@glider.be, peng.fan@nxp.com, linus.walleij@linaro.org, u.kleine-koenig@pengutronix.de, marex@denx.de Date: Thu, 04 Apr 2024 16:53:58 +0100 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.44.4-0ubuntu2 Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Greetings, I'm trying to suspend/resume our Verdin iMX8M Mini with VPU IP using the latest 6.9.0-rc2 Kernel. While the system can suspend without issues, it hangs on the resume routine. After some investigation, I can see the Kernel hanging on imx8m_blk_ctrl_power_on()[1] while resuming the hantro-vpu power domain. Any hint about that? [1]https://elixir.bootlin.com/linux/v6.9-rc2/source/drivers/pmdomain/imx/im= x8m-blk-ctrl.c#L101