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Tue, 03 Nov 2026 14:06:58 -0800 (PST) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91e7dfe98b2sm1903246d6.21.2026.11.03.14.06.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Nov 2026 14:06:57 -0800 (PST) Message-ID: <0d5f8aa1-8d0e-4a28-b7dc-dacbfb1ca1c2@gmail.com> Date: Tue, 3 Nov 2026 14:06:56 -0800 X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/3] serial: sb1250-duart: Fix bootconsole handover lockup To: "Maciej W. Rozycki" , Thomas Bogendoerfer , Greg Kroah-Hartman , Jiri Slaby Cc: linux-mips@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org References: Content-Language: en-US, fr-FR From: Florian Fainelli Autocrypt: addr=fainelli@broadcom.com; keydata= xsBNBFPAG8ABCAC3EO02urEwipgbUNJ1r6oI2Vr/+uE389lSEShN2PmL3MVnzhViSAtrYxeT M0Txqn1tOWoIc4QUl6Ggqf5KP6FoRkCrgMMTnUAINsINYXK+3OLe7HjP10h2jDRX4Ajs4Ghs JrZOBru6rH0YrgAhr6O5gG7NE1jhly+EsOa2MpwOiXO4DE/YKZGuVe6Bh87WqmILs9KvnNrQ PcycQnYKTVpqE95d4M824M5cuRB6D1GrYovCsjA9uxo22kPdOoQRAu5gBBn3AdtALFyQj9DQ KQuc39/i/Kt6XLZ/RsBc6qLs+p+JnEuPJngTSfWvzGjpx0nkwCMi4yBb+xk7Hki4kEslABEB AAHNKEZsb3JpYW4gRmFpbmVsbGkgPGZhaW5lbGxpQGJyb2FkY29tLmNvbT7CwSQEEAEKAM4X CgABv0jL/n0t8VEFmtDa8j7qERo7AN0gFAAAAAAAFgABa2V5LXVzYWdlLW1hc2tAcGdwLmNv bY4wFIAAAAAAIAAHcHJlZmVycmVkLWVtYWlsLWVuY29kaW5nQHBncC5jb21wZ3BtaW1lCAsJ CAcDAgEKAhkBBReAAAAAGRhsZGFwOi8va2V5cy5icm9hZGNvbS5jb20FGwMAAAADFgIBBR4B AAAABBUICQoWIQTV2SqX55Fc3tfkfGiBMbXEKbxmoAUCZNaBugUJI+Jo+gAKCRCBMbXEKbxm oNb9B/9/GCiZzNiK61IY24a16Cu83Da7ayx8OhpE/LZC7nkUd8Gd5K7lL+yDcC56aFx1EzKp bsug1GFaMsjAPi8QqMHSCly0S4oCaazZZEikCSIidmlxCLKEglcslpqUBQAeC6oArE9xJh7c zpcBgiMRH1ZJpVZZ5xpwnhsIe9RdT7p4BTDcZ2cErc+jUkGg7FApgIDOrV9vjRQ5khF2zKH8 QYDPhpauwl2SHCBRZtVRi9ur5Jy8PnlkhLf1XEf2MsptHJHE+A7twVtJJaFre6gNPQI0y/dh kCTj3bekpjEP//+/qt3bMRWRPle8a4rlyn5MGqN2ewYgCOuGtu0xtxhvIEmYzsBNBFPAG8EB CACsa+9aKnvtPjGAnO1mn1hHKUBxVML2C3HQaDp5iT8Q8A0ab1OS4akj75P8iXYfZOMVA0Lt 65taiFtiPT7pOZ/yc/5WbKhsPE9dwysrvHjHL2gP4q5vZV/RJduwzx8v9KrMZsVZlKbvcvUv gZmjG9gjPSLssTFhJfa7lhUtowFof0fAq3Zy+vsy5OtEe1xs5kiahdPb2DZSegXW7DFg15GF lj+VG9WSRjSUOKk+4PCDdKl8cy0LJs+rW4CzBB2ARsfNGwRfAJHU4Xeki4a3gje1ISEf+TVx qqLQGWqNsZQ6SS7jjELaB/VlTbrsUEGR1XfIn/sqeskSeQwJiFLeQgj3ABEBAAHCwYEEGAEC ASsFAlPAG8IFGwwAAADAXSAEGQEIAAYFAlPAG8EACgkQk2AGqJgvD1UNFQgAlpN5/qGxQARK eUYOkL7KYvZFl3MAnH2VeNTiGFoVzKHOe7LIwmp3eZ6GYvGyoNG8cOKrIPvXDYGdzzfwxVnD SnAE92dv+H05yanSUv/2HBIZa/LhrPmVhXKgD27XhQjOHRg0a7qOvSKx38skBsderAnBZazf Lw9OukSnrxXqW/5pe3mBHTeUkQC8hHUDCngkn95nnLXaBAhKnRfzFqX1iGENYRH3Zgtis7Zv odzZLfWUC6nN8LDyWZmw/U9HPUaYX8qYMP0n039vwh6GFZCqsFCMyOfYrZeS83vkecAwcoVh 8dlHdke0rnZk/VytXtMe1u2uc9dUOr687hA+Z0L5IQAKCRCBMbXEKbxmoLoHCACXeRGHuijO mOkbyOk7x6fkIG1OXcb46kokr2ptDLN0Ky4nQrWp7XBk9ls/9j5W2apKCcTEHONK2312uMUE ryWI9BlqWnawyVL1LtyxLLpwwsXVq5m5sBkSqma2ldqBu2BHXZg6jntF5vzcXkqG3DCJZ2hO ldFPH+czRwe2OOsiY42E/w7NUyaN6b8Hrw1j77+q3QXldOw/bON361EusWHdbhcRwu3WWFiY 2ZslH+Xr69VtYAoMC1xtDxIvZ96ps9ZXpUPJUqHJr8QSrTG1/zioQH7j/4iMJ07MMPeQNkmj 4kGQOdTcsFfDhYLDdCE5dj5WeE6fYRxEQ3up0ArDSP1L In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 8/6/26 03:54, Maciej W. Rozycki wrote: > Calling sbd_init_port() in the course of setting up the serial device > causes line parameters to be messed up and the transmitter disabled. > We've been lucky in that no message is usually produced to the kernel > log between this call and the later call to uart_set_options() in the > course of console setup done by sbd_serial_console_init(), or the system > would hang as the console output handler in CFE tried to access a port > whose transmitter has been disabled and line parameters messed up. > > It'll change with the next change to the driver, so fix sbd_init_port() > such that line parameters are set for 115200n8 console operation as with > the CFE firmware and the transmitter re-enabled after reset. > > Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM") > Signed-off-by: Maciej W. Rozycki > Cc: stable@vger.kernel.org # v6.5+ Tested-by: Florian Fainelli -- Florian