From patchwork Tue Apr 30 04:32:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuanhua Han X-Patchwork-Id: 10922809 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06AE5933 for ; Tue, 30 Apr 2019 04:31:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E8002289BC for ; Tue, 30 Apr 2019 04:31:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D6F1828994; Tue, 30 Apr 2019 04:31:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 85D2528994 for ; Tue, 30 Apr 2019 04:31:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=nj3+7Q2Wzi2zqpCS7ThxvcWypd+302709UHntur77Jc=; b=n1/ dQj51/u8oqCnSOSDyT4N4yLTenTcRK5PPXHDUs7mTovN9Xo9wCP4lUb6OH6N27Cw9J9vafp4XzL9o rkC8N0KBS411NjtVNpi4l1oWNKnGrV+qL/Rx5VU6upnIwcdnQe+8ofPAnxPYbMiKEt6G+c7nk9KVc hwk+y7zYSrBswc2948zzBm/FfCdd+QnYwhEWaD+qo7UOnp1p4JnFHXX/I2cr6rWAzOe72Ol7h1kQK IRRCIviP9vCtRRwqc7rU5I431mq0Z0qdOdZM89aPD1JBbIupZsX3uDijxXJrR3q4vcKrmog/K+Ji8 7dYu39cErB70BLoeBNhk00c9DtPWxCQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKQd-0001zr-QU; Tue, 30 Apr 2019 04:31:39 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKQV-0001sW-5q for linux-arm-kernel@lists.infradead.org; Tue, 30 Apr 2019 04:31:32 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id A713E1A0014; Tue, 30 Apr 2019 06:31:26 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id ACEDA1A0013; Tue, 30 Apr 2019 06:31:17 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id C57A5402D9; Tue, 30 Apr 2019 12:31:06 +0800 (SGT) From: Chuanhua Han To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, leoyang.li@nxp.com Subject: [PATCH 1/3] dt-bindings: i2c: add optional mul-value property to binding Date: Tue, 30 Apr 2019 12:32:40 +0800 Message-Id: <20190430043242.29687-1-chuanhua.han@nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190429_213131_360142_EA046535 X-CRM114-Status: UNSURE ( 7.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, sumit.batra@nxp.com, eha@deif.com, Chuanhua Han , linux-kernel@vger.kernel.org, linux@rempel-privat.de, wsa+renesas@sang-engineering.com, linux-imx@nxp.com, kernel@pengutronix.de, u.kleine-koenig@pengutronix.de, l.stach@pengutronix.de, festevam@gmail.com, peda@axentia.se, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP NXP Layerscape SoC have up to three MUL options available for all divider values, we choice of MUL determines the internal monitor rate of the I2C bus (SCL and SDA signals): A lower MUL value results in a higher sampling rate of the I2C signals. A higher MUL value results in a lower sampling rate of the I2C signals. So in Optional properties we added our custom mul-value property in the binding to select which mul option for the device tree i2c controller node. Signed-off-by: Chuanhua Han --- Documentation/devicetree/bindings/i2c/i2c-imx.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.txt b/Documentation/devicetree/bindings/i2c/i2c-imx.txt index b967544590e8..ba8e7b7b3fa8 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-imx.txt @@ -18,6 +18,9 @@ Optional properties: - sda-gpios: specify the gpio related to SDA pin - pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c bus recovery, call it "gpio" state +- mul-value: NXP Layerscape SoC have up to three MUL options available for +all I2C divider values, it describes which MUL we choose to use for the driver, +the values should be 1,2,4. Examples: From patchwork Tue Apr 30 04:32:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuanhua Han X-Patchwork-Id: 10922811 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BEFB1933 for ; Tue, 30 Apr 2019 04:32:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC64628994 for ; Tue, 30 Apr 2019 04:32:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A085028A45; Tue, 30 Apr 2019 04:32:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 16AD728994 for ; Tue, 30 Apr 2019 04:32:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=gSaAfjDmlXBaIT9Fpe8TOSEbwRFIOjUtPFoEgMkHLY4=; b=mE2WMbnZlDRYE6cczeFucOYoFm WDqqT0y7dHKFaTDRk1qtgG9cina6Jv5NSuSi7i7e2dXJR0heKH7BiXo/l37oDOWIXXF4Ftk0MjzMw P0wtvWuuOtdEpjCljNJQAva0WKAu5jvUnPWwmX7llAbthmAbdhPsfhXEeKipN3tcCC2zP2mYcRBJn OvtmUDcAyFATHAvSv7R+xnNzVNtI8fs1BLHcEklesAxYwkH2j1Z1zUlvV5j6GNq1n3gox4WZbrQ9a lZtyIRmEU/GMvfggQEoq5uEuGbUwJfry/DbmD9zqo6ECspVGFGy+ZFEyo0QjpiBysA+6pEdt6ivfZ 1yAzcl2w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKR1-0002Mn-GX; Tue, 30 Apr 2019 04:32:03 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKQV-0001sZ-CF for linux-arm-kernel@lists.infradead.org; Tue, 30 Apr 2019 04:31:34 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7885F1A0192; Tue, 30 Apr 2019 06:31:28 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7A69C1A00DF; Tue, 30 Apr 2019 06:31:19 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 9A6AD402C0; Tue, 30 Apr 2019 12:31:08 +0800 (SGT) From: Chuanhua Han To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, leoyang.li@nxp.com Subject: [PATCH 2/3] i2c: imx: I2C Driver IBC and SCL Divider for MUL=2 and MUL=4 Date: Tue, 30 Apr 2019 12:32:41 +0800 Message-Id: <20190430043242.29687-2-chuanhua.han@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190430043242.29687-1-chuanhua.han@nxp.com> References: <20190430043242.29687-1-chuanhua.han@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190429_213131_692220_82C88C3A X-CRM114-Status: GOOD ( 11.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, sumit.batra@nxp.com, eha@deif.com, Chuanhua Han , linux-kernel@vger.kernel.org, linux@rempel-privat.de, wsa+renesas@sang-engineering.com, linux-imx@nxp.com, kernel@pengutronix.de, u.kleine-koenig@pengutronix.de, l.stach@pengutronix.de, festevam@gmail.com, peda@axentia.se, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP NXP Layerscape SoC have up to three MUL options available for all divider values,we choice of MUL determines the internal monitor rate of the I2C bus (SCL and SDA signals). The current kernel driver supports MUL=1 by default ,but doesn't have the IBC and SCL Divider entries in vf610_i2c_clk_div for MUL=2 and MUL=4,so we need to add the corresponding support. Signed-off-by: Sumit Batra Signed-off-by: Chuanhua Han --- drivers/i2c/busses/i2c-imx.c | 71 +++++++++++++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 42fed40198a0..ac5a334b7339 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -156,6 +157,44 @@ static struct imx_i2c_clk_pair vf610_i2c_clk_div[] = { { 3840, 0x3F }, { 4096, 0x7B }, { 5120, 0x7D }, { 6144, 0x7E }, }; +static struct imx_i2c_clk_pair mul2_i2c_clk_div[] = { + { 40, 0x40 }, { 44, 0x41 }, { 48, 0x42 }, { 52, 0x43 }, + { 56, 0x44 }, { 60, 0x45 }, { 68, 0x46 }, { 80, 0x47 }, + { 56, 0x48 }, { 64, 0x49 }, { 72, 0x4A }, { 80, 0x4B }, + { 88, 0x4C }, { 96, 0x4D }, { 112, 0x4E }, { 136, 0x4F }, + { 96, 0x50 }, { 112, 0x51 }, { 128, 0x52 }, { 144, 0x53 }, + { 160, 0x54 }, { 176, 0x55 }, { 208, 0x56 }, { 256, 0x57 }, + { 160, 0x58 }, { 192, 0x59 }, { 224, 0x5A }, { 256, 0x5B }, + { 288, 0x5C }, { 320, 0x5D }, { 384, 0x5E }, { 480, 0x5F }, + { 320, 0x60 }, { 384, 0x61 }, { 448, 0x62 }, { 512, 0x63 }, + { 576, 0x64 }, { 640, 0x65 }, { 768, 0x66 }, { 960, 0x67 }, + { 640, 0x68 }, { 768, 0x69 }, { 896, 0x6A }, { 1024, 0x6B }, + { 1152, 0x6C }, { 1280, 0x6D }, { 1536, 0x6E }, { 1920, 0x6F }, + { 1280, 0x70 }, { 1536, 0x71 }, { 1792, 0x72 }, { 2048, 0x73 }, + { 2304, 0x74 }, { 2560, 0x75 }, { 3072, 0x76 }, { 3840, 0x77 }, + { 2560, 0x78 }, { 3072, 0x79 }, { 3584, 0x7A }, { 4096, 0x7B }, + { 4608, 0x7C }, { 5120, 0x7D }, { 6144, 0x7E }, { 7680, 0x7F }, +}; + +static struct imx_i2c_clk_pair mul4_i2c_clk_div[] = { + { 80, 0x80 }, { 88, 0x81 }, { 96, 0x82 }, { 104, 0x83 }, + { 112, 0x84 }, { 120, 0x85 }, { 136, 0x86 }, { 160, 0x87 }, + { 112, 0x88 }, { 128, 0x89 }, { 144, 0x8A }, { 160, 0x8B }, + { 176, 0x8C }, { 192, 0x8D }, { 224, 0x8E }, { 272, 0x8F }, + { 192, 0x90 }, { 224, 0x91 }, { 256, 0x92 }, { 288, 0x93 }, + { 320, 0x94 }, { 352, 0x95 }, { 416, 0x96 }, { 512, 0x97 }, + { 320, 0x98 }, { 384, 0x99 }, { 448, 0x9A }, { 512, 0x9B }, + { 576, 0x9C }, { 640, 0x9D }, { 768, 0x9E }, { 960, 0x9F }, + { 640, 0xA0 }, { 768, 0xA1 }, { 896, 0xA2 }, { 1024, 0xA3 }, + { 1152, 0xA4 }, { 1280, 0xA5 }, { 1536, 0xA6 }, { 1792, 0xAA }, + { 1280, 0xA8 }, { 1536, 0xA9 }, { 1920, 0xA7 }, { 2048, 0xAB }, + { 2304, 0xAC }, { 2560, 0xAD }, { 3072, 0xAE }, { 3584, 0xB2 }, + { 2560, 0xB0 }, { 3072, 0xB1 }, { 3820, 0xAF }, { 4096, 0xB3 }, + { 4608, 0xB4 }, { 5120, 0xB5 }, { 6144, 0xB6 }, { 7680, 0xB7 }, + { 5120, 0xB8 }, { 6144, 0xB9 }, { 7168, 0xBA }, { 8192, 0xBB }, + { 9216, 0xBC }, { 10240, 0xBD }, { 12288, 0xBE }, { 15360, 0xBF }, +}; + enum imx_i2c_type { IMX1_I2C, IMX21_I2C, @@ -234,6 +273,24 @@ static struct imx_i2c_hwdata vf610_i2c_hwdata = { }; +static struct imx_i2c_hwdata mul2_i2c_hwdata = { + .devtype = VF610_I2C, + .regshift = VF610_I2C_REGSHIFT, + .clk_div = mul2_i2c_clk_div, + .ndivs = ARRAY_SIZE(mul2_i2c_clk_div), + .i2sr_clr_opcode = I2SR_CLR_OPCODE_W1C, + .i2cr_ien_opcode = I2CR_IEN_OPCODE_0, +}; + +static struct imx_i2c_hwdata mul4_i2c_hwdata = { + .devtype = VF610_I2C, + .regshift = VF610_I2C_REGSHIFT, + .clk_div = mul4_i2c_clk_div, + .ndivs = ARRAY_SIZE(mul4_i2c_clk_div), + .i2sr_clr_opcode = I2SR_CLR_OPCODE_W1C, + .i2cr_ien_opcode = I2CR_IEN_OPCODE_0, +}; + static const struct platform_device_id imx_i2c_devtype[] = { { .name = "imx1-i2c", @@ -1058,6 +1115,7 @@ static int i2c_imx_probe(struct platform_device *pdev) void __iomem *base; int irq, ret; dma_addr_t phy_addr; + u32 mul_value; dev_dbg(&pdev->dev, "<%s>\n", __func__); @@ -1077,11 +1135,20 @@ static int i2c_imx_probe(struct platform_device *pdev) if (!i2c_imx) return -ENOMEM; - if (of_id) + if (of_id) { i2c_imx->hwdata = of_id->data; - else + ret = of_property_read_u32(pdev->dev.of_node, + "mul-value", &mul_value); + if (!ret) { + if (mul_value == 2) + i2c_imx->hwdata = &mul2_i2c_hwdata; + else if (mul_value == 4) + i2c_imx->hwdata = &mul4_i2c_hwdata; + } + } else { i2c_imx->hwdata = (struct imx_i2c_hwdata *) platform_get_device_id(pdev)->driver_data; + } /* Setup i2c_imx driver structure */ strlcpy(i2c_imx->adapter.name, pdev->name, sizeof(i2c_imx->adapter.name)); From patchwork Tue Apr 30 04:32:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuanhua Han X-Patchwork-Id: 10922807 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1716B1515 for ; Tue, 30 Apr 2019 04:31:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE53428994 for ; 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bh=LoSeHIVebyYOp+px2PEQ4GwgxGzEXSZNvAhrRkY9U7w=; b=IubIgWy5XxN0gLxV2EvE/OwnFt ar2z71zWHyH9+Dna0aUa14kDFfiXRnsBAlONTfsOH/bnSGv2HVirZ+YOtRS+1EbxoiEFqJ4p2Akpa eWAyttaTpb3lireYAkP3WOAA72NYzKJkDmxyFvWtmNub4JHqB9gbfnwJ/WUjmUgKbC8u1V4F62iT1 dl9+hGIaFc3LqJPADlNrjxqzxh3O6B46pKlI6MDxl+5t/MNCkDOFDRBiilirmCnRZNN0w+bFbn09k SUJ2XeOZNzvvhiCdpQQjwpFPGofHH364PL6XKKm8QxJJdS2dDp/LpD3pdFVsu1CufuDkSfukK7o6u PqH2Q6vA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKQZ-0001u2-4e; Tue, 30 Apr 2019 04:31:35 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hLKQV-0001sf-7q for linux-arm-kernel@lists.infradead.org; Tue, 30 Apr 2019 04:31:32 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0FE841A0013; Tue, 30 Apr 2019 06:31:30 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 45E801A00ED; Tue, 30 Apr 2019 06:31:21 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 65CD840318; Tue, 30 Apr 2019 12:31:10 +0800 (SGT) From: Chuanhua Han To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, leoyang.li@nxp.com Subject: [PATCH 3/3] arm64: dts: fsl: ls1046a: Add mul-value property of the i2c controller nodes Date: Tue, 30 Apr 2019 12:32:42 +0800 Message-Id: <20190430043242.29687-3-chuanhua.han@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190430043242.29687-1-chuanhua.han@nxp.com> References: <20190430043242.29687-1-chuanhua.han@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190429_213131_441623_6F2032E0 X-CRM114-Status: UNSURE ( 7.59 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, sumit.batra@nxp.com, eha@deif.com, Chuanhua Han , linux-kernel@vger.kernel.org, linux@rempel-privat.de, wsa+renesas@sang-engineering.com, linux-imx@nxp.com, kernel@pengutronix.de, u.kleine-koenig@pengutronix.de, l.stach@pengutronix.de, festevam@gmail.com, peda@axentia.se, linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP According to LS1046A Reference Manual, for the i2c controller, you have up to three MUL options available for all divider values. Therefore, we need to determine which MUL to use in the device tree for driver use. The "mul-value" property provides which mul is used in our driver. Signed-off-by: Chuanhua Han --- arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi index b0ef08b090dd..373310e4c0ea 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi @@ -385,6 +385,7 @@ dmas = <&edma0 1 39>, <&edma0 1 38>; dma-names = "tx", "rx"; + mul-value = <4>; status = "disabled"; }; @@ -395,6 +396,7 @@ reg = <0x0 0x2190000 0x0 0x10000>; interrupts = ; clocks = <&clockgen 4 1>; + mul-value = <4>; status = "disabled"; }; @@ -405,6 +407,7 @@ reg = <0x0 0x21a0000 0x0 0x10000>; interrupts = ; clocks = <&clockgen 4 1>; + mul-value = <4>; status = "disabled"; }; @@ -415,6 +418,7 @@ reg = <0x0 0x21b0000 0x0 0x10000>; interrupts = ; clocks = <&clockgen 4 1>; + mul-value = <4>; status = "disabled"; };