From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5031A2C86; Tue, 12 Oct 2021 14:36:12 +0000 (UTC) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:4cb:a870:dcd8:9f87:c3be:dc06]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 581031F43BCA; Tue, 12 Oct 2021 15:36:04 +0100 (BST) From: Benjamin Gaignard To: mchehab@kernel.org, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@gmail.com, hverkuil-cisco@xs4all.nl, jc@kynesim.co.uk, ezequiel@vanguardiasur.com.ar Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Benjamin Gaignard Subject: [PATCH v2 4/4] arm64: dts: imx8mq: Add node to G2 hardware Date: Tue, 12 Oct 2021 16:35:52 +0200 Message-Id: <20211012143552.661751-5-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211012143552.661751-1-benjamin.gaignard@collabora.com> References: <20211012143552.661751-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Split the VPU node in two: one for G1 and one for G2 since they are different hardware blocks. Add syscon for the hardware control block. Remove the reg-names property that is useless. Each VPU node only needs one interrupt. Change G2 assigned clock to match the specification. In both nodes all the clocks need to be assigned to make sure that the control block will be correctly clocked even if only one device node is enabled. Signed-off-by: Benjamin Gaignard Please note that the only purpose of this commit is to allow to test G2 hardware block for IMX8MQ until a proper solution isuing power domain can be found. Do not merge it. --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 43 ++++++++++++++++++----- 1 file changed, 34 insertions(+), 9 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 4066b1612655..9125e52147df 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1432,15 +1432,16 @@ usb3_phy1: usb-phy@382f0040 { status = "disabled"; }; - vpu: video-codec@38300000 { + vpu_ctrl: syscon@38320000 { + compatible = "nxp,imx8mq-vpu-ctrl", "syscon"; + reg = <0x38320000 0x10000>; + }; + + vpu_g1: video-codec@38300000 { compatible = "nxp,imx8mq-vpu"; - reg = <0x38300000 0x10000>, - <0x38310000 0x10000>, - <0x38320000 0x10000>; - reg-names = "g1", "g2", "ctrl"; - interrupts = , - ; - interrupt-names = "g1", "g2"; + reg = <0x38300000 0x10000>; + interrupts = ; + interrupt-names = "g1"; clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, <&clk IMX8MQ_CLK_VPU_G2_ROOT>, <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; @@ -1453,9 +1454,33 @@ vpu: video-codec@38300000 { <&clk IMX8MQ_VPU_PLL_OUT>, <&clk IMX8MQ_SYS1_PLL_800M>, <&clk IMX8MQ_VPU_PLL>; - assigned-clock-rates = <600000000>, <600000000>, + assigned-clock-rates = <600000000>, <300000000>, + <800000000>, <0>; + power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; + }; + + vpu_g2: video-codec@38310000 { + compatible = "nxp,imx8mq-vpu-g2"; + reg = <0x38310000 0x10000>; + interrupts = ; + interrupt-names = "g2"; + clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, + <&clk IMX8MQ_CLK_VPU_G2_ROOT>, + <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; + clock-names = "g1", "g2", "bus"; + assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>, + <&clk IMX8MQ_CLK_VPU_G2>, + <&clk IMX8MQ_CLK_VPU_BUS>, + <&clk IMX8MQ_VPU_PLL_BYPASS>; + assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_SYS1_PLL_800M>, + <&clk IMX8MQ_VPU_PLL>; + assigned-clock-rates = <600000000>, <300000000>, <800000000>, <0>; power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; }; pcie0: pcie@33800000 { -- 2.30.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3D27C433EF for ; Tue, 12 Oct 2021 14:37:17 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BBF9E60EB4 for ; Tue, 12 Oct 2021 14:37:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BBF9E60EB4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Yz6Vp92LvItYQKstYChO1UF4pa+iwDzOJUYRMwY06JU=; b=h0J/BOvx36bjNg c3UmZ1lNl4a3E/B5/Bzh6mcIk0NOaLZtKozy6bT9ZNfWTTDjQNYQkoffrr9lkhcr1hhTOiFl1agD8 nZV3EMG83+7iqZjZGadoS9jxhGQI8PJxWACD6ymnKwsWy4eO7gUGI7v0UxANmW0/5KvqeV493z3Bv jI5/T8lzLC+c5tKI2wpxI0lM775eM75VUTjpZTzgdVJZTwf9d7n9FQvjle854+jU8CYQxAVyEhGjB VeV0yTdXffD7hIbjaaUTx40/FqodnIW8kSWnS9p76Fab1FEgaMhe/qeLHp+GfFs/yuNn6fEv55sMp 9o8HFpfRSNFfABgXw94A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maIu0-00DDEL-SG; Tue, 12 Oct 2021 14:37:12 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maIsw-00DCji-9z; Tue, 12 Oct 2021 14:36:08 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:4cb:a870:dcd8:9f87:c3be:dc06]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 581031F43BCA; Tue, 12 Oct 2021 15:36:04 +0100 (BST) From: Benjamin Gaignard To: mchehab@kernel.org, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@gmail.com, hverkuil-cisco@xs4all.nl, jc@kynesim.co.uk, ezequiel@vanguardiasur.com.ar Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Benjamin Gaignard Subject: [PATCH v2 4/4] arm64: dts: imx8mq: Add node to G2 hardware Date: Tue, 12 Oct 2021 16:35:52 +0200 Message-Id: <20211012143552.661751-5-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211012143552.661751-1-benjamin.gaignard@collabora.com> References: <20211012143552.661751-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211012_073606_518103_991F9F7A X-CRM114-Status: GOOD ( 11.44 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Split the VPU node in two: one for G1 and one for G2 since they are different hardware blocks. Add syscon for the hardware control block. Remove the reg-names property that is useless. Each VPU node only needs one interrupt. Change G2 assigned clock to match the specification. In both nodes all the clocks need to be assigned to make sure that the control block will be correctly clocked even if only one device node is enabled. Signed-off-by: Benjamin Gaignard Please note that the only purpose of this commit is to allow to test G2 hardware block for IMX8MQ until a proper solution isuing power domain can be found. Do not merge it. --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 43 ++++++++++++++++++----- 1 file changed, 34 insertions(+), 9 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 4066b1612655..9125e52147df 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1432,15 +1432,16 @@ usb3_phy1: usb-phy@382f0040 { status = "disabled"; }; - vpu: video-codec@38300000 { + vpu_ctrl: syscon@38320000 { + compatible = "nxp,imx8mq-vpu-ctrl", "syscon"; + reg = <0x38320000 0x10000>; + }; + + vpu_g1: video-codec@38300000 { compatible = "nxp,imx8mq-vpu"; - reg = <0x38300000 0x10000>, - <0x38310000 0x10000>, - <0x38320000 0x10000>; - reg-names = "g1", "g2", "ctrl"; - interrupts = , - ; - interrupt-names = "g1", "g2"; + reg = <0x38300000 0x10000>; + interrupts = ; + interrupt-names = "g1"; clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, <&clk IMX8MQ_CLK_VPU_G2_ROOT>, <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; @@ -1453,9 +1454,33 @@ vpu: video-codec@38300000 { <&clk IMX8MQ_VPU_PLL_OUT>, <&clk IMX8MQ_SYS1_PLL_800M>, <&clk IMX8MQ_VPU_PLL>; - assigned-clock-rates = <600000000>, <600000000>, + assigned-clock-rates = <600000000>, <300000000>, + <800000000>, <0>; + power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; + }; + + vpu_g2: video-codec@38310000 { + compatible = "nxp,imx8mq-vpu-g2"; + reg = <0x38310000 0x10000>; + interrupts = ; + interrupt-names = "g2"; + clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, + <&clk IMX8MQ_CLK_VPU_G2_ROOT>, + <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; + clock-names = "g1", "g2", "bus"; + assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>, + <&clk IMX8MQ_CLK_VPU_G2>, + <&clk IMX8MQ_CLK_VPU_BUS>, + <&clk IMX8MQ_VPU_PLL_BYPASS>; + assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_SYS1_PLL_800M>, + <&clk IMX8MQ_VPU_PLL>; + assigned-clock-rates = <600000000>, <300000000>, <800000000>, <0>; power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; }; pcie0: pcie@33800000 { -- 2.30.2 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1345C433EF for ; Tue, 12 Oct 2021 14:39:07 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 623F76103D for ; Tue, 12 Oct 2021 14:39:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 623F76103D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GXqOHsd9MdYdV/zagbKCW+HslpT/cfX1eyY3Th4T5vs=; b=PdgYWb2mQ70agA BB0EhOTfGmzCF5zjpKn8D5DWTwBAZbSeiKOo8v31dZFBAaM0OSkbho9TqYKE7q0GkGLhCOEM+D/y4 2ddFRa7U9i8Kttbado2tBfuIyDP8Kh7ZhNExFa5GucmQ2Qk1bu4ts/rnADiesrRdRYYQ/+9VmvupA /u5x0kepBUFHqWC2+WwEh0mC7X4GJ+WQ1f8DzCmnGXtdSE7AzYk1h62zaLQ1HGGHuaKYrR+G5J9vU 4+gsLY1fU/+LBVuIVDW2P8dOVpa+AAzWtK52sxDE9kegsWwFp77D1I7/RdH1z95NMg15AUnBE3orh cTelmDdkXz988N+9RrFg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maItn-00DD53-RK; Tue, 12 Oct 2021 14:36:59 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maIsw-00DCji-9z; Tue, 12 Oct 2021 14:36:08 +0000 Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:4cb:a870:dcd8:9f87:c3be:dc06]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 581031F43BCA; Tue, 12 Oct 2021 15:36:04 +0100 (BST) From: Benjamin Gaignard To: mchehab@kernel.org, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@gmail.com, hverkuil-cisco@xs4all.nl, jc@kynesim.co.uk, ezequiel@vanguardiasur.com.ar Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Benjamin Gaignard Subject: [PATCH v2 4/4] arm64: dts: imx8mq: Add node to G2 hardware Date: Tue, 12 Oct 2021 16:35:52 +0200 Message-Id: <20211012143552.661751-5-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211012143552.661751-1-benjamin.gaignard@collabora.com> References: <20211012143552.661751-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211012_073606_518103_991F9F7A X-CRM114-Status: GOOD ( 11.44 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Split the VPU node in two: one for G1 and one for G2 since they are different hardware blocks. Add syscon for the hardware control block. Remove the reg-names property that is useless. Each VPU node only needs one interrupt. Change G2 assigned clock to match the specification. In both nodes all the clocks need to be assigned to make sure that the control block will be correctly clocked even if only one device node is enabled. Signed-off-by: Benjamin Gaignard Please note that the only purpose of this commit is to allow to test G2 hardware block for IMX8MQ until a proper solution isuing power domain can be found. Do not merge it. --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 43 ++++++++++++++++++----- 1 file changed, 34 insertions(+), 9 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 4066b1612655..9125e52147df 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1432,15 +1432,16 @@ usb3_phy1: usb-phy@382f0040 { status = "disabled"; }; - vpu: video-codec@38300000 { + vpu_ctrl: syscon@38320000 { + compatible = "nxp,imx8mq-vpu-ctrl", "syscon"; + reg = <0x38320000 0x10000>; + }; + + vpu_g1: video-codec@38300000 { compatible = "nxp,imx8mq-vpu"; - reg = <0x38300000 0x10000>, - <0x38310000 0x10000>, - <0x38320000 0x10000>; - reg-names = "g1", "g2", "ctrl"; - interrupts = , - ; - interrupt-names = "g1", "g2"; + reg = <0x38300000 0x10000>; + interrupts = ; + interrupt-names = "g1"; clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, <&clk IMX8MQ_CLK_VPU_G2_ROOT>, <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; @@ -1453,9 +1454,33 @@ vpu: video-codec@38300000 { <&clk IMX8MQ_VPU_PLL_OUT>, <&clk IMX8MQ_SYS1_PLL_800M>, <&clk IMX8MQ_VPU_PLL>; - assigned-clock-rates = <600000000>, <600000000>, + assigned-clock-rates = <600000000>, <300000000>, + <800000000>, <0>; + power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; + }; + + vpu_g2: video-codec@38310000 { + compatible = "nxp,imx8mq-vpu-g2"; + reg = <0x38310000 0x10000>; + interrupts = ; + interrupt-names = "g2"; + clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>, + <&clk IMX8MQ_CLK_VPU_G2_ROOT>, + <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; + clock-names = "g1", "g2", "bus"; + assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>, + <&clk IMX8MQ_CLK_VPU_G2>, + <&clk IMX8MQ_CLK_VPU_BUS>, + <&clk IMX8MQ_VPU_PLL_BYPASS>; + assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_VPU_PLL_OUT>, + <&clk IMX8MQ_SYS1_PLL_800M>, + <&clk IMX8MQ_VPU_PLL>; + assigned-clock-rates = <600000000>, <300000000>, <800000000>, <0>; power-domains = <&pgc_vpu>; + nxp,imx8m-vpu-ctrl = <&vpu_ctrl>; }; pcie0: pcie@33800000 { -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel