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[2a02:3100:9c4b:4f01:f5b8:3b3d:3e3d:5e7a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4956548321asm15332135e9.12.2026.07.20.14.26.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 14:26:48 -0700 (PDT) Date: Mon, 20 Jul 2026 23:26:46 +0200 From: Karl Mehltretter To: Sebastian Andrzej Siewior Cc: John Ogness , sashiko-reviews@lists.linux.dev, Petr Mladek , linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev Subject: Re: [PATCH 2/2] serial: amba-pl011: keep console clock enabled for atomic writes Message-ID: References: <20260719063502.18852-1-kmehltretter@gmail.com> <20260719063502.18852-3-kmehltretter@gmail.com> <20260719065214.A40521F000E9@smtp.kernel.org> <20260720080100.Mk9zZFql@linutronix.de> <8733xeaxix.fsf@jogness.linutronix.de> <20260720082640.eGsVn61E@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260720082640.eGsVn61E@linutronix.de> On Mon, Jul 20, 2026 at 10:26:40AM +0100, Sebastian Andrzej Siewior wrote: > On 2026-07-20 10:19:58 [+0206], John Ogness wrote: > > This is what the suspend/resume pm callbacks are for. In this case, it > > is pl011_suspend() and pl011_resume(). > > Perfect so everything is in place except for these two. > > > > There is also this no_console_suspend argument… > > > > Yes, the callbacks need to check @console_suspend_enabled. If false, the > > clocks obviously must not be disabled. > > good. > All right, I will send a v2 patch for this. My testing is limited to QEMU, so I cannot test the power impact or behaviour of real SoCs. Karl