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AJvYcCXZzW6nTIZ+Uj34yji1BHIWem5SxZ8QbhArdv1NIPcy7se9nnlkuqPOgPyDaULxhgriSw/wczM3J5FPGrDq8/0sgvSbAIFZVX+XGm+y X-Gm-Message-State: AOJu0YzAnRgIRwCuRUzcc6VVzWXkMDCsHj3/WR610R5yu/jBOc+cQ5w/ y/AKex1t0Vmau6Kq7eZ9zNKSW02eCAG3GUkX5KKB1wb2eX3QTNSEWG3QXCYbRCI= X-Google-Smtp-Source: AGHT+IFiYFIGKJfQyPnchd/fwzShUwNh2360VhDrC8CiwYOSi3Z+91egB0zDkeO+M7mP7Zw60Obmkg== X-Received: by 2002:adf:f584:0:b0:367:993e:874f with SMTP id ffacd0b85a97d-367cea8f98fmr7195391f8f.34.1720760420550; Thu, 11 Jul 2024 22:00:20 -0700 (PDT) Received: from draszik.lan ([80.111.64.44]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-367cde89198sm9143958f8f.60.2024.07.11.22.00.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Jul 2024 22:00:20 -0700 (PDT) Message-ID: <74fd5d7cabfda98f578b5a4d4f4df1adba05ca3d.camel@linaro.org> Subject: Re: [PATCH v3 2/2] clk: samsung: gs101: don't mark non-essential (UART) clocks critical From: =?ISO-8859-1?Q?Andr=E9?= Draszik To: Marek Szyprowski , Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , Sylwester Nawrocki , Chanwoo Choi , Alim Akhtar , Michael Turquette , Stephen Boyd , Sam Protsenko , Tudor Ambarus Cc: Will McVicker , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org Date: Fri, 12 Jul 2024 06:00:19 +0100 In-Reply-To: <0faacbeb-2ca3-4749-89a8-6dd81621a07d@samsung.com> References: <20240710-gs101-non-essential-clocks-2-v3-0-5dcb8d040d1c@linaro.org> <20240710-gs101-non-essential-clocks-2-v3-2-5dcb8d040d1c@linaro.org> <0faacbeb-2ca3-4749-89a8-6dd81621a07d@samsung.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3-1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2024-07-10 at 16:35 +0200, Marek Szyprowski wrote: > I think that it would be much better to check if earlycon is specified= =20 > in kernel's cmdline and if so, simply mark those problematic clocks=20 > critical in this driver. Make this code hidden under=20 > IS_ENABLED(CONFIG_SERIAL_EARLYCON) to avoid polluting release builds.=20 > Any comments? Good idea, I've found that i.MX appears to suffer from a similar problem, and I'm testing something similar now: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/dri= vers/clk/imx/clk.c#n157 Cheers, Andre'