[{"id":3668980,"web_url":"http://patchwork.ozlabs.org/comment/3668980/","msgid":"","list_archive_url":null,"date":"2026-03-25T10:41:45","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":91240,"url":"http://patchwork.ozlabs.org/api/people/91240/","name":"Troy Mitchell","email":"troy.mitchell@linux.spacemit.com"},"content":"On Wed Mar 25, 2026 at 5:49 PM CST, Yixun Lan wrote:\n> Populate all I2C devicetree nodes for SpacemiT K3 SoC.\n>\n> Signed-off-by: Yixun Lan \n> ---\n> arch/riscv/boot/dts/spacemit/k3.dtsi | 98 ++++++++++++++++++++++++++++++++++++\n> 1 file changed, 98 insertions(+)\n>\n> diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi\n> index a3a8ceddabec..cab72591b7f1 100644\n> --- a/arch/riscv/boot/dts/spacemit/k3.dtsi\n> +++ b/arch/riscv/boot/dts/spacemit/k3.dtsi\n> @@ -438,6 +438,76 @@ soc: soc {\n> \t\tdma-noncoherent;\n> \t\tranges;\n> \n> +\t\ti2c0: i2c@d4010800 {\n> +\t\t\tcompatible = \"spacemit,k3-i2c\", \"spacemit,k1-i2c\";\n> +\t\t\treg = <0x0 0xd4010800 0x0 0x38>;\n> +\t\t\t#address-cells = <1>;\n> +\t\t\t#size-cells = <0>;\n> +\t\t\tinterrupts = <36 IRQ_TYPE_LEVEL_HIGH>;\n> +\t\t\tclocks = <&syscon_apbc CLK_APBC_TWSI0>,\n> +\t\t\t\t <&syscon_apbc CLK_APBC_TWSI0_BUS>;\n> +\t\t\tclock-names = \"func\", \"bus\";\n> +\t\t\tclock-frequency = <400000>;\n> +\t\t\tresets = <&syscon_apbc RESET_APBC_TWSI0>;\n> +\t\t\tstatus = \"disabled\";\n> +\t\t};\n> +\n> +\t\ti2c1: i2c@d4011000 {\n> +\t\t\tcompatible = \"spacemit,k3-i2c\", \"spacemit,k1-i2c\";\n> +\t\t\treg = <0x0 0xd4011000 0x0 0x38>;\n> +\t\t\t#address-cells = <1>;\n> +\t\t\t#size-cells = <0>;\n> +\t\t\tinterrupts = <37 IRQ_TYPE_LEVEL_HIGH>;\n> +\t\t\tclocks = <&syscon_apbc CLK_APBC_TWSI1>,\n> +\t\t\t\t <&syscon_apbc CLK_APBC_TWSI1_BUS>;\n> +\t\t\tclock-names = \"func\", \"bus\";\n> +\t\t\tclock-frequency = <400000>;\n> +\t\t\tresets = <&syscon_apbc RESET_APBC_TWSI1>;\n> +\t\t\tstatus = \"disabled\";\n> +\t\t};\n> +\n> +\t\ti2c2: i2c@d4012000 {\n> +\t\t\tcompatible = \"spacemit,k3-i2c\", \"spacemit,k1-i2c\";\n> +\t\t\treg = <0x0 0xd4012000 0x0 0x38>;\n> +\t\t\t#address-cells = <1>;\n> +\t\t\t#size-cells = <0>;\n> +\t\t\tinterrupts = <38 IRQ_TYPE_LEVEL_HIGH>;\n> +\t\t\tclocks = <&syscon_apbc CLK_APBC_TWSI2>,\n> +\t\t\t\t <&syscon_apbc CLK_APBC_TWSI2_BUS>;\n> +\t\t\tclock-names = \"func\", \"bus\";\n> +\t\t\tclock-frequency = <400000>;\n> +\t\t\tresets = <&syscon_apbc RESET_APBC_TWSI2>;\n> +\t\t\tstatus = \"disabled\";\n> +\t\t};\nI think we should add a comment here to explain why there isn't i2c3.\nOtherwise, LGTM.\n\nReviewed-by: Troy Mitchell ","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.spacemit.com header.i=@linux.spacemit.com\n header.a=rsa-sha256 header.s=mxsw2412 header.b=KQoizdSS;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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charset=UTF-8","Date":"Wed, 25 Mar 2026 18:41:45 +0800","Message-Id":"","Cc":", ,\n , ,\n ","Subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","From":"\"Troy Mitchell\" ","To":"\"Yixun Lan\" , \"Andi Shyti\" ,\n \"Rob Herring\" , \"Krzysztof Kozlowski\"\n , \"Conor Dooley\" , \"Paul Walmsley\"\n , \"Palmer Dabbelt\" , \"Albert Ou\"\n , \"Alexandre Ghiti\" , \"Troy Mitchell\"\n ","X-Mailer":"aerc 0.21.0-0-g5549850facc2","References":"<20260325-02-k3-i2c-v1-0-78f29c83d9ac@kernel.org>\n <20260325-02-k3-i2c-v1-2-78f29c83d9ac@kernel.org>","In-Reply-To":"<20260325-02-k3-i2c-v1-2-78f29c83d9ac@kernel.org>","X-QQ-SENDSIZE":"520","Feedback-ID":"zesmtpgz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0","X-QQ-XMAILINFO":"M/AyZGld0ICWZJOKLI3GDPQX/bB1AO8EkYCDTjotDUGbS+sd4RQIxmYN\n\taMQdXYqa3mWV+S5uW5jLgU3+peTJIXubpnlxQgj2EylTCYsjyh3eFsEOCexS8rgXoVvOjoS\n\tkvu8+CxafXG7HT4ob6tMtFvuIKw/VyIat4PxbDTXFLGOUz5PzLAjH+BcqyKxTfVNoYUrXZY\n\t1YRZjgtVL9ydzZ3LcOAswpnzLZPxxw1QCkf05CmFcdIpc48WsqRg4K39pfCQeZ5u8YJD6ym\n\tMurFo0sXpQX9MsvIQxj02dGk1vQ9iCILj2uxj5uU81NuNActuTKYKK5GolEz1ievBq+zwlY\n\tk0wU1DFm8wjtY4ZSBl9z0XI14s80Sre8ebg5NDmLBVD7NOvzm1CDQdAzyd4FN0tXToLXcke\n\t152yNX3AbtIvbPV5hbA83tQF+WqWl7VHwKb2E28vHEXjwyIXf8X9Zdhj0CFmdbFnib1bMOr\n\t7szhNkW0y9FfuZbG6bVWDHBO6KHb3TAagXf/hIxtePXSwkvKsyRkHfW6IcVyMhzZS0O8ct/\n\tKHS+q9zoy8ehk/ctSoeRzeTESwVGpiFGwevUC1Oki+FVqVc9qMbiQbhxcgDnJMm6FPQxoi9\n\tXirWoIIiE4kal82a5VCWheB2UyJBn0xoggaQT/iJehMfNTll7sM1m7Qbi1JUK+5UYWsxbHn\n\txVrOflxpV7Kg/tGYEbxbvo/BSbbqjKqgWrCla0SEv/4QOc6zKW5LbEQY1y7IUk3gvskMx3v\n\ttoOtpfIP7rt9eqjFn/DS8fbVf2mBJfJ9vQqjQdrt/t4k9zmmB3pUWPSPhd79Wjft3b2mukc\n\t2vti3JR5e6z0qFES0bgCkVMlz3fNNUsG1pJTUU5/OxvSwEwoeKbNPWqd113rfI2e3AyD+hH\n\tkl3TYUmuLdOPgy8lj1aR4XRQRQjhEq/v0tVxy4/G1uhe5Yd+gMUDQ2EY02L6STcf97IXKmm\n\tUcZROWpAYXiOshNoajF5qYLG7dE1DCsnWQN4ujtx8DnnpLzfJfHhRfCj7gywpcvoIUxs5nV\n\toPllE68dMJxPn0gJQbNbx0r/EQr2D8KAVrabNr21oOI94hkHlelwlzVM+VovE=","X-QQ-XMRINFO":"M/715EihBoGS47X28/vv4NpnfpeBLnr4Qg==","X-QQ-RECHKSPAM":"0"}},{"id":3669983,"web_url":"http://patchwork.ozlabs.org/comment/3669983/","msgid":"","list_archive_url":null,"date":"2026-03-26T22:22:26","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":85956,"url":"http://patchwork.ozlabs.org/api/people/85956/","name":"Andi Shyti","email":"andi.shyti@kernel.org"},"content":"Hi Yixun,\n\nOn Wed, Mar 25, 2026 at 09:49:25AM +0000, Yixun Lan wrote:\n> Populate all I2C devicetree nodes for SpacemiT K3 SoC.\n> \n> Signed-off-by: Yixun Lan \n\nthis second patch does not apply on my i2c branch. I'm missing\nsome other patches on k3.\n\nCan you please rebase it on top of my i2c/i2c-host branch,\notherwise I will need to wait for the merge window to open in\norder to take this.\n\nAndi","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=YQBepmYf;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-i2c+bounces-16817-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"YQBepmYf\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhdZ70YDkz1xy1\n\tfor ; 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charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20260325-02-k3-i2c-v1-2-78f29c83d9ac@kernel.org>"}},{"id":3669984,"web_url":"http://patchwork.ozlabs.org/comment/3669984/","msgid":"","list_archive_url":null,"date":"2026-03-26T22:23:03","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":85956,"url":"http://patchwork.ozlabs.org/api/people/85956/","name":"Andi Shyti","email":"andi.shyti@kernel.org"},"content":"Hi Yixun,\n\n> > +\t\ti2c2: i2c@d4012000 {\n> > +\t\t\tcompatible = \"spacemit,k3-i2c\", \"spacemit,k1-i2c\";\n> > +\t\t\treg = <0x0 0xd4012000 0x0 0x38>;\n> > +\t\t\t#address-cells = <1>;\n> > +\t\t\t#size-cells = <0>;\n> > +\t\t\tinterrupts = <38 IRQ_TYPE_LEVEL_HIGH>;\n> > +\t\t\tclocks = <&syscon_apbc CLK_APBC_TWSI2>,\n> > +\t\t\t\t <&syscon_apbc CLK_APBC_TWSI2_BUS>;\n> > +\t\t\tclock-names = \"func\", \"bus\";\n> > +\t\t\tclock-frequency = <400000>;\n> > +\t\t\tresets = <&syscon_apbc RESET_APBC_TWSI2>;\n> > +\t\t\tstatus = \"disabled\";\n> > +\t\t};\n> I think we should add a comment here to explain why there isn't i2c3.\n> Otherwise, LGTM.\n\nare you going to add a comment here?\n\n> Reviewed-by: Troy Mitchell ","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=DIWyTSD0;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; 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charset=us-ascii","Content-Disposition":"inline","In-Reply-To":""}},{"id":3669986,"web_url":"http://patchwork.ozlabs.org/comment/3669986/","msgid":"","list_archive_url":null,"date":"2026-03-26T22:24:45","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":85956,"url":"http://patchwork.ozlabs.org/api/people/85956/","name":"Andi Shyti","email":"andi.shyti@kernel.org"},"content":"Hi agagin,\n\nOn Thu, Mar 26, 2026 at 11:22:31PM +0100, Andi Shyti wrote:\n> On Wed, Mar 25, 2026 at 09:49:25AM +0000, Yixun Lan wrote:\n> > Populate all I2C devicetree nodes for SpacemiT K3 SoC.\n> > \n> > Signed-off-by: Yixun Lan \n> \n> this second patch does not apply on my i2c branch. I'm missing\n> some other patches on k3.\n> \n> Can you please rebase it on top of my i2c/i2c-host branch,\n> otherwise I will need to wait for the merge window to open in\n> order to take this.\n\nsorry, this has to go through some other path, I'm going to take\npatch 1.\n\nAndi","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=X2iLVf4T;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-i2c+bounces-16819-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"X2iLVf4T\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhdrY3v4lz1yFp\n\tfor ; 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charset=us-ascii","Content-Disposition":"inline","In-Reply-To":""}},{"id":3670019,"web_url":"http://patchwork.ozlabs.org/comment/3670019/","msgid":"<20260327020543-GKA847041@kernel.org>","list_archive_url":null,"date":"2026-03-27T02:05:43","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":91543,"url":"http://patchwork.ozlabs.org/api/people/91543/","name":"Yixun Lan","email":"dlan@kernel.org"},"content":"Hi Andi,\n\nOn 23:24 Thu 26 Mar , Andi Shyti wrote:\n> Hi agagin,\n> \n> On Thu, Mar 26, 2026 at 11:22:31PM +0100, Andi Shyti wrote:\n> > On Wed, Mar 25, 2026 at 09:49:25AM +0000, Yixun Lan wrote:\n> > > Populate all I2C devicetree nodes for SpacemiT K3 SoC.\n> > > \n> > > Signed-off-by: Yixun Lan \n> > \n> > this second patch does not apply on my i2c branch. I'm missing\n> > some other patches on k3.\n> > \n> > Can you please rebase it on top of my i2c/i2c-host branch,\n> > otherwise I will need to wait for the merge window to open in\n> > order to take this.\n> \n> sorry, this has to go through some other path, I'm going to take\n> patch 1.\nRight, I will take care of it, DT patch should go via SpacemiT SoC tree.","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=fTwid/KS;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-i2c+bounces-16824-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"fTwid/KS\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhkWv5XV9z1xy1\n\tfor ; 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charset=us-ascii","Content-Disposition":"inline","In-Reply-To":""}},{"id":3670035,"web_url":"http://patchwork.ozlabs.org/comment/3670035/","msgid":"<20260327023932-GKB847041@kernel.org>","list_archive_url":null,"date":"2026-03-27T02:39:32","subject":"Re: [PATCH 2/2] dts: riscv: spacemit: k3: Add i2c nodes","submitter":{"id":91543,"url":"http://patchwork.ozlabs.org/api/people/91543/","name":"Yixun Lan","email":"dlan@kernel.org"},"content":"Hi Andi,\n\nOn 23:23 Thu 26 Mar , Andi Shyti wrote:\n> Hi Yixun,\n> \n> > > +\t\ti2c2: i2c@d4012000 {\n> > > +\t\t\tcompatible = \"spacemit,k3-i2c\", \"spacemit,k1-i2c\";\n> > > +\t\t\treg = <0x0 0xd4012000 0x0 0x38>;\n> > > +\t\t\t#address-cells = <1>;\n> > > +\t\t\t#size-cells = <0>;\n> > > +\t\t\tinterrupts = <38 IRQ_TYPE_LEVEL_HIGH>;\n> > > +\t\t\tclocks = <&syscon_apbc CLK_APBC_TWSI2>,\n> > > +\t\t\t\t <&syscon_apbc CLK_APBC_TWSI2_BUS>;\n> > > +\t\t\tclock-names = \"func\", \"bus\";\n> > > +\t\t\tclock-frequency = <400000>;\n> > > +\t\t\tresets = <&syscon_apbc RESET_APBC_TWSI2>;\n> > > +\t\t\tstatus = \"disabled\";\n> > > +\t\t};\n> > I think we should add a comment here to explain why there isn't i2c3.\n> > Otherwise, LGTM.\n> \n> are you going to add a comment here?\n> \nI will explain and re-spin a v2, and add a short comment for this:\n- i2c3 is reserved for secure domain which not available from linux\n- i2c7 simply does not exist from hardware perspective, K3 SoC want to\nkeep align with K1 to use same index of I2C controller for the pmic\n\n> > Reviewed-by: Troy Mitchell \n>","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-i2c@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=ev26ueLC;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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