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[213.36.7.13]) by smtp.gmail.com with ESMTPSA id r17-20020a5d4e51000000b002f01e181c4asm13727898wrt.5.2023.04.18.11.11.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Apr 2023 11:11:16 -0700 (PDT) From: Arnaud Vrac Subject: [PATCH 0/4] Support HDMI CEC on Qualcomm SoCs Date: Tue, 18 Apr 2023 20:10:42 +0200 Message-Id: <20230418-msm8998-hdmi-cec-v1-0-176479fb2fce@freebox.fr> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIACLdPmQC/zXNywrCMBCF4Vcps3Yg6QUmvoq4SNKpmUWiZEQKp e9uKnb5w/k4GyhXYYVrt0Hlj6g8Swt76SAmXx6MMreG3vSDGS1h1kzOEaY5C0aOaChM5ExYRsv QWPDKGKovMR2w8PrGvx5OfexelRdZf9e3+75/AfJnIPmKAAAA To: Rob Clark , Hans Verkuil , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski Cc: David Airlie , Daniel Vetter , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, Arnaud Vrac X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1793; i=avrac@freebox.fr; h=from:subject:message-id; bh=am/H82hqwmU83sVoZuyNqgdTOTTt8SGXNkd+GyuveEU=; b=owEBbQKS/ZANAwAIAXED/9m7NDSrAcsmYgBkPt02Pmrys1RGf4UYjuW9+8hCzdXDkgPQImhKL oA0OHW17S+JAjMEAAEIAB0WIQSUwb/ndwkXHdZ/QQZxA//ZuzQ0qwUCZD7dNgAKCRBxA//ZuzQ0 q4oiD/9C+EMeFG+BgIyBSdfXlNecAx5BoK0RU2oOMxOuql17z4c+STsni5IYQ4ksuVMuiqjNCKh u7NW9edxfnEoaVlO+RfOifXXuUv+DWZnL4Wnjv3CCtYFQr+N5w5Rx2a+BEhHlAYTu6XyX/bY5Xi jsht/a/QUjDyWtT3C/40cMxz+hVJKlHkFbyTf4Tp6I0ROeO4bHxGUWL6cQeqPNpWwaW7QZHa5Gm bxLkoaQJvA3UsEMPb9dJC/p0D4lk8dS2ne0B2+lGEN6c4Kn+9cBQXNfL3im3oTmwhHfo0W2zX1G lu+pN6z83DV0ObBRmHJjZL7/qadtFQIIUbX6YhBh1/q3g7Rpwe2oS1nJmX/a2MIBPD9B/9KjIr1 ZV01SckN9NGrbQ6Qu5OXqA8MbpKGVX4fetF9TrG+MYnTEDVWE3qnLv/P27Pcvnx0ahE5Oty9mhO hZM44VnYVdaQZci6l+BrrEa+LfOp44ASJe2xvRnIpLVn7OPrCr0Vhl5D9KQj63YidTlp6dNL3zV i3upwSmxRdqZMlnrwSzo/v3+nCePXsd7YtKpc0NP2a7dZUTCPH/QKgbifnwcraoR0N8EenOBPmS +nJ/MmCwDXje1E3H0+YAYioSmiaj0M9v8h38udUJSbp93tF+uN5oWR0GyTuM90nnUMTUa4p+pu/ 8mQzWFJrb+M9nVw== X-Developer-Key: i=avrac@freebox.fr; a=openpgp; fpr=6225092072BB58E3CEEC091E75392A176D952DB4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some Qualcomm SoCs that support HDMI also support CEC, including MSM8996 and MSM8998. The hardware block can handle a single CEC logical address and broadcast messages. Port the CEC driver from downstream msm-4.4 kernel. It has been tested on MSM8998 and passes the cec-compliance tool tests. The equivalent downstream driver also passed CEC CTS tests using a Quantum Data QD882E analyzer. Some registers bitfield definitions were added to make the code clearer, and those will also be proposed for upstream in the original xml file from which the header was generated, in the mesa project. Note HDMI support is not yet included upstream for MSM8998, I would appreciate if someone can verify this driver at least works on MSM8996, for which adding the pinctrl nodes for CEC should be sufficient. Signed-off-by: Arnaud Vrac --- Arnaud Vrac (4): drm/msm: add some cec register bitfield details drm/msm: add hdmi cec support drm/msm: expose edid to hdmi cec adapter arm64: dts: qcom: msm8998: add hdmi cec pinctrl nodes arch/arm64/boot/dts/qcom/msm8998.dtsi | 14 ++ drivers/gpu/drm/msm/Kconfig | 8 + drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/hdmi/hdmi.c | 15 ++ drivers/gpu/drm/msm/hdmi/hdmi.h | 18 +++ drivers/gpu/drm/msm/hdmi/hdmi.xml.h | 62 +++++++- drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 2 + drivers/gpu/drm/msm/hdmi/hdmi_cec.c | 280 +++++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/hdmi/hdmi_hpd.c | 17 +- 9 files changed, 412 insertions(+), 5 deletions(-) --- base-commit: e3342532ecd39bbd9c2ab5b9001cec1589bc37e9 change-id: 20230418-msm8998-hdmi-cec-08b5890bf41e Best regards,