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Wed, 13 May 2026 14:35:02 -0700 (PDT) Received: from [192.168.0.2] ([197.250.51.99]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fdb1fee9csm2553055e9.0.2026.05.13.14.34.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2026 14:35:01 -0700 (PDT) From: =?utf-8?q?Stefan_D=C3=B6singer?= Subject: [PATCH 0/2] amba/serial: amba-pl011: Bring back zx29 UART support Date: Thu, 14 May 2026 00:34:55 +0300 Message-Id: <20260514-zx29uart-v1-0-68470ecc3977@gmail.com> 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-Transfer-Encoding: 8bit X-B4-Tracking: v=1; b=H4sIAH/uBGoC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDU0Nj3aoKI8vSxKIS3dQ0E5PENHNjQ2NLAyWg8oKi1LTMCrBR0bG1tQD /2TtwWgAAAA== X-Change-ID: 20260513-zx29uart-ef44af731390 To: Russell King , Greg Kroah-Hartman , Jiri Slaby Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, =?utf-8?q?Stefan_D=C3=B6singer?= , Linus Walleij X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; 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a=openpgp; fpr=4F9C2C8728019633893EBBB98CB81F9A72BBA155 This is based on code removed in commit 89d4f98ae90d ("ARM: remove zte zx platform"). It was previously discussed and reviewed on the linux-arm-kernel mailing list as part of my patchset to add initial support for ZTE's zx297520v3 router board. I am sending the two UART driver patches to linux-serial. The rest goes through the soc list. Note that the first patch (LLDEBUG) uses a Kconfig symbol introduced by my platform patch, which was sent to the soc mailing list. I don't know what the correct way to handle this is. I can delay/resend this patchset after the soc changes are merged. Signed-off-by: Stefan Dösinger --- Stefan Dösinger (2): ARM: zte: Add support for zx29 low level debug amba/serial: amba-pl011: Bring back zx29 UART support arch/arm/Kconfig.debug | 12 ++++++++++++ arch/arm/include/debug/pl01x.S | 9 +++++++++ drivers/tty/serial/amba-pl011.c | 42 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 63 insertions(+) --- base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731 change-id: 20260513-zx29uart-ef44af731390 Best regards, -- Stefan Dösinger