From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D69B483BC4 for ; Sat, 10 Oct 2026 11:55:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791633355; cv=none; b=BdBok9Pd7xJaNmPuYv8HhKfTRZbta5JfgoNnJNi/JCc6qgV3JX323h34PcbEv8zlYbjmoDV8dX4pRbhiLAl+nptt89W1xCbbvvXXwsvUU6uTK5E66SsYMFLBvAUJHtTidBETbv+4zhRoJOeif2IY8oA2xdH+SgA9JFkjOSOhXPQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791633355; c=relaxed/simple; bh=rvRwgHQvg5JZ1LUtLcvpMJdT9FYkYz/WGufe4EYyt6s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=B6wHp7edvuh16DUHkWwNAPQ7kfv1WVdPRX7jhxVVRcnSzs94Q3JXJqTaBtvfdZkLRh+t4WOpyFXRN/045AuQPBIAyh9pCAjLbX9Gu47mhTrmkmWBdEvJmd4D+AgG1psWzluDQyq2o7tZTn1+LLW5aHH5T600Wj2arhgBQ/eaVFI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=X/uLWFKb; arc=none smtp.client-ip=209.85.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="X/uLWFKb" Received: by mail-wm1-f53.google.com with SMTP id 5b1f17b1804b1-4a01933b584so5366705e9.0 for ; Sat, 10 Oct 2026 04:55:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791633348; x=1792238148; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=MUGs28pjyaKV6mm7T8DFRVWF7FBLghSbmcUfgUOr8K0=; b=X/uLWFKbu+/TRM+hrDw4HzQYRKaf20P5Gr7PXI4ImcUAd09UQJ5rhaQt3DmOl1xtpr YW7fnABdmvlyapQJCPQsOk0TZy4qEZf349NoRhc2sAQnxuAcIjIS03s5cQWvI9yMrkUd GPuuaaMIkvDP4q9wxa4Lrw8PijPl9P3qnypWIZNRqno7C1QSTmzeFddgDbDbSYuQrmp+ sSh8LCeuMlV1OGT1hjgHW/5IXFH8q2WzouXTBiYhsIwTBrOVq9T0SP9P6/DHaVI2ye/J UcQt45qq6RH95KxhVaDDPoPfEQ1/Rve9s4lrph4OuVJlUgrrog8tuIC99ndMLGx+oxkw MXDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791633348; x=1792238148; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=MUGs28pjyaKV6mm7T8DFRVWF7FBLghSbmcUfgUOr8K0=; b=LSuuYAfhU/CQuDTIYuN6uE2wk3/hNhuyp1ys2EPsYziTOow6v5kD41sGZ4l1y9ZBKn rM8hhihR3hRJCtQ2oCtQdPhnIxc2w43eXZpnUXLVrg3P/0vdaqj3mlbCY2T1Hjn+z5ER /AuvZ0kiA8OgyqPqLjhpYPzpScq75C5Ypt3akHL/viAgbDxJ2uPOc91HjQa7yf0fTntZ oxk2/ElMGWvWJTzisHFncSqqdJxAU43NxMpiRE5ZoxVI2wBN0csg6dQ21SeIvKf90gYM RW8OGItRI+6o/nIIFcB73kluQQHMGUzfN7Qjggq/NtK7UDreazwMo77RemgsWcjjlREh LV2w== X-Forwarded-Encrypted: i=1; AKwUvBwiFV7DRC+4DJYtc48lE2ojGK1PuNJ73jClNOhPOueum/WY4MBc84z1q2Rp1dDzxNUOGhe+M5pwbDUH@vger.kernel.org X-Gm-Message-State: AFq9FYI/ijB1E7W4Cvd+tNuYf/j2Pt+mIWUY1i33twHWux8wGn9DnXSc hupOZY1QfvbAPZcM3POTKs5P4pEMxGD+N6ap0+j6x+buca4xlIITTHTS X-Gm-Gg: AYBFou0djOyQhOB0jDYFhgmrENaXKOOuoIWsZoZTmpkejnIHg8u700oQlMuoySpX1X0 TovBk2l9i6RMn/px0l/eaAGqdeGNJuuYxWZQo5NwuSjB8irt8L8UhvAlT1RaO7yl8/ZvCfghuRQ Gb2YPhMRUUAaJNTSGpeVsuKDQAIngwXPQZiypcsfN/Ma1fBGtU5hbk1v14YduYcgON08bJCNeye l6r6+dnjheJgTonumNW7k0tTnhhtsBfGYp4YH23asvJjigcVGk01BqlmdLQLLdSTe3tqTtD66Hh PcUkGBomY78z1DQeRJrnEICSNSljlJk9177SFeSNYQZDuZ0Ut+kIowjPxjv1ZvEUyo7BXCZIXqD dWOBdemiPPqcg6oPlWlq+IA7cRrwfZYVYtvZTJ8tUyfgCSOG7G/fnE9kq3y966ucjm6bvSTWy55 2Li9wSilbXbjgQCum8/fcngOT8UNwKbdNFOcgfcErGULxG6Kji00X0Y8Kbs6bWmM2BvDhCRz5Sr U8tjQ== X-Received: by 2002:a05:600c:4e01:b0:49f:ce78:3567 with SMTP id 5b1f17b1804b1-4a18e4afc3amr83354515e9.24.1791633348096; Sat, 10 Oct 2026 04:55:48 -0700 (PDT) Received: from luca-vm.lan ([154.61.61.58]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48db9aca657sm8746340f8f.43.2026.10.10.04.55.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Oct 2026 04:55:47 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Chunfeng Yun , Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Stephen Boyd , Brian Masney , Jerome Brunet , Chun-Kuang Hu , Philipp Zabel , David Airlie , Simona Vetter , Nicolas Frattaroli , Chen-Yu Tsai , Fabien Parent , CK Hu , chunhui dai , linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 0/7] Add support for Mediatek mt8167 HDMI display output Date: Sat, 10 Oct 2026 13:54:00 +0200 Message-ID: <20261010115539.9237-1-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The MediaTek mt8167 SoC supports HDMI output via a dedicated HDMI PHY driven by the DPI1 display block. Support for HDMI output was partially upstreamed in 2021, but is currently not functional as it's missing its HDMI PHY driver. The HDMI PHY is apparently similar to the mt2701 one, but some differences in timings and in the initialization sequence are better expressed with a separate driver. * Patch 1, 2 add support for the HDMI PHY. In addition to the HDMI PHY, a few fixes are required here and there to actually get HDMI output. * Patch 3: Some of the HDMI registers are mapped into the apmixedsys syscon. Since they are manipulated inside the HDMI PHY driver, we change the apmixedsys memory map to non exclusive by switching it from devm_platform_ioremap_resource to of_iomap. This approach was copied from mt8173 apmixedsys syscon. * Patch 4: Since the DPI1 interface is hardwired to the HDMI PHY, it is appropriate for the HDMI PHY to control the DPI1 clocks. There is no effect on DPI0 clocks as they're completely separate. * Patch 5: Some MediaTek SoCs require a supervisor call to enable HDMI output. mt8167 is not one of those. * Patch 6: In the common path for mt2701/mt8167, a register operation that is meant to enable the HDMI_PSECUR_EN bit is actually touching some other bits that are set by later operations anyway. The patch makes more explicit the intent of the operation by setting only the necessary bit. * Patch 7: Adds the device tree nodes to the mt8167 dtsi. Since DPI1 is hardwired to HDMI it is possible to bind the input port of the HDMI node to the output port of DPI1, but the patch that adds the DPI nodes to the DTSI [1] has not been picked up yet, so we leave it disconnected for now. The series was tested at all supported resolutions on the Sony PlayStation Classic Mini. [1] https://lore.kernel.org/linux-mediatek/20260921113914.779393-5-l.scorcia@gmail.com/ Luca Leonardo Scorcia (7): dt-bindings: mediatek: hdmi-phy: Add compatible for mt8167 phy: mediatek: hdmi: Add support for mt8167 clk: mediatek: mt8167: Map apmixedsys iomem as shared clk: mediatek: mt8167: Correct HDMI-related clock definitions drm/mediatek: mtk_hdmi: Set tz_disabled for mt8167 drm/mediatek: mtk_hdmi: Improve the secure output bit toggle arm64: dts: mediatek: mt8167: Add HDMI display nodes .../bindings/phy/mediatek,hdmi-phy.yaml | 1 + arch/arm64/boot/dts/mediatek/mt8167.dtsi | 62 +++++ drivers/clk/mediatek/clk-mt8167-apmixedsys.c | 26 ++- drivers/clk/mediatek/clk-mt8167.c | 6 +- drivers/gpu/drm/mediatek/mtk_hdmi.c | 3 +- drivers/gpu/drm/mediatek/mtk_hdmi_regs.h | 1 + drivers/phy/mediatek/Makefile | 1 + drivers/phy/mediatek/phy-mtk-hdmi-mt8167.c | 217 ++++++++++++++++++ drivers/phy/mediatek/phy-mtk-hdmi.c | 3 + drivers/phy/mediatek/phy-mtk-hdmi.h | 1 + 10 files changed, 314 insertions(+), 7 deletions(-) create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8167.c base-commit: a90ee4305c4a5df72c11b31dacfdc76e00fcf78a -- 2.43.0