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[2003:f1:3712:7c00:f22f:74ff:fe21:725]) by smtp.googlemail.com with ESMTPSA id x10sm7576200wrt.65.2021.06.04.12.03.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 12:03:55 -0700 (PDT) From: Martin Blumenstingl To: robh+dt@kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org Cc: kishon@ti.com, vkoul@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Martin Blumenstingl Subject: [PATCH 0/2] phy: Add support for the HDMI TX PHY on Meson8/8b/8m2 Date: Fri, 4 Jun 2021 21:03:36 +0200 Message-Id: <20210604190338.2248295-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210604_120358_859162_B1E3697C X-CRM114-Status: GOOD ( 11.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Amlogic Meson8/8b/8m2 SoCs embed a HDMI TX PHY. Unfortunately there is no (public) documentation for this hardware. The best thing we have is the 3.10 vendor kernel, which unfortunately doesn't document most register bits (only a few are named there, the rest is all magic numbers). It is possible that this is a TranSwitch HDMI TX PHY based core, but this is pure speculation. Adding a driver for the HDMI TX PHY gets us one step closer to video output on these older SoCs. Martin Blumenstingl (2): dt-bindings: phy: Add the Amlogic Meson8 HDMI TX PHY bindings phy: amlogic: Add a new driver for the HDMI TX PHY on Meson8/8b/8m2 .../phy/amlogic,meson8-hdmi-tx-phy.yaml | 51 ++++++ drivers/phy/amlogic/Kconfig | 11 ++ drivers/phy/amlogic/Makefile | 1 + drivers/phy/amlogic/phy-meson8-hdmi-tx.c | 150 ++++++++++++++++++ 4 files changed, 213 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/amlogic,meson8-hdmi-tx-phy.yaml create mode 100644 drivers/phy/amlogic/phy-meson8-hdmi-tx.c