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charset="utf-8" From: Peng Fan The clock name should be per clock, not ipg clock. Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- arch/arm/boot/dts/imx7ulp.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi index bcec98b96411..9c7abec90a89 100644 --- a/arch/arm/boot/dts/imx7ulp.dtsi +++ b/arch/arm/boot/dts/imx7ulp.dtsi @@ -329,7 +329,7 @@ lpi2c6: i2c@40a40000 { reg =3D <0x40a40000 0x10000>; interrupts =3D ; clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C6>; - clock-names =3D "ipg"; + clock-names =3D "per"; assigned-clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C6>; assigned-clock-parents =3D <&scg1 IMX7ULP_CLK_FIRC>; assigned-clock-rates =3D <48000000>; @@ -341,7 +341,7 @@ lpi2c7: i2c@40a50000 { reg =3D <0x40a50000 0x10000>; interrupts =3D ; clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C7>; - clock-names =3D "ipg"; + clock-names =3D "per"; assigned-clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C7>; assigned-clock-parents =3D <&scg1 IMX7ULP_CLK_FIRC>; assigned-clock-rates =3D <48000000>; --=20 2.37.1 From nobody Wed Apr 8 06:11:40 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC78AC38147 for ; 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charset="utf-8" From: Peng Fan i.MX LPI2C actually requires dual clock: per clock and ipg clock, so add both. Reviewed-by: Dong Aisheng Reviewed-by: Krzysztof Kozlowski Signed-off-by: Peng Fan --- Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Doc= umentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml index 529bea56d324..e42e35003eae 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml @@ -37,10 +37,12 @@ properties: clock-frequency: true =20 clock-names: - maxItems: 1 + items: + - const: per + - const: ipg =20 clocks: - maxItems: 1 + maxItems: 2 =20 power-domains: maxItems: 1 @@ -63,5 +65,6 @@ examples: reg =3D <0x40A50000 0x10000>; interrupt-parent =3D <&intc>; interrupts =3D ; - clocks =3D <&clks IMX7ULP_CLK_LPI2C7>; + clocks =3D <&clks IMX7ULP_CLK_LPI2C7>, + <&clks IMX7ULP_CLK_NIC1_BUS_DIV>; }; --=20 2.37.1 From nobody Wed Apr 8 06:11:40 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64B1BC32789 for ; 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charset="utf-8" From: Peng Fan i.MX LPI2C has dma capability, so add dmas property Reviewed-by: Dong Aisheng Reviewed-by: Krzysztof Kozlowski Signed-off-by: Peng Fan --- .../devicetree/bindings/i2c/i2c-imx-lpi2c.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Doc= umentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml index e42e35003eae..08b81d57d7e1 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml @@ -44,6 +44,16 @@ properties: clocks: maxItems: 2 =20 + dmas: + items: + - description: DMA controller phandle and request line for TX + - description: DMA controller phandle and request line for RX + + dma-names: + items: + - const: tx + - const: rx + power-domains: maxItems: 1 =20 --=20 2.37.1 From nobody Wed Apr 8 06:11:40 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2593EC28D13 for ; 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charset="utf-8" From: Peng Fan Add i.MX93 LPI2C compatible string. Acked-by: Krzysztof Kozlowski Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Doc= umentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml index 08b81d57d7e1..4656f5112b84 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml @@ -23,6 +23,7 @@ properties: - fsl,imx8dxl-lpi2c - fsl,imx8qm-lpi2c - fsl,imx8ulp-lpi2c + - fsl,imx93-lpi2c - const: fsl,imx7ulp-lpi2c =20 reg: --=20 2.37.1 From nobody Wed Apr 8 06:11:40 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12602C28D13 for ; Tue, 23 Aug 2022 03:01:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239601AbiHWDBd (ORCPT ); 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Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by DU2PR04MB8824.eurprd04.prod.outlook.com (2603:10a6:10:2e3::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5525.10; Tue, 23 Aug 2022 03:01:09 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::3c6c:b7e6:a93d:d442]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::3c6c:b7e6:a93d:d442%4]) with mapi id 15.20.5546.023; Tue, 23 Aug 2022 03:01:09 +0000 From: "Peng Fan (OSS)" To: wsa@kernel.org, aisheng.dong@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, xiaoning.wang@nxp.com, Peng Fan Subject: [PATCH V3 5/7] arm64: dts: imx8-ss-dma: add IPG clock for i2c Date: Tue, 23 Aug 2022 11:02:13 +0800 Message-Id: <20220823030215.870414-6-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220823030215.870414-1-peng.fan@oss.nxp.com> References: <20220823030215.870414-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SGXP274CA0024.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b8::36) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c7b92651-e353-4062-2d13-08da84b3bac3 X-MS-TrafficTypeDiagnostic: DU2PR04MB8824:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Peng Fan i.MX8 LPI2C requires both PER and IPG clock, so add the missed IPG clk. Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- .../arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 20 +++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/bo= ot/dts/freescale/imx8-ss-dma.dtsi index 960a802b8b6e..d7b4229bb4a2 100644 --- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi @@ -111,8 +111,9 @@ uart3_lpcg: clock-controller@5a490000 { i2c0: i2c@5a800000 { reg =3D <0x5a800000 0x4000>; interrupts =3D ; - clocks =3D <&i2c0_lpcg IMX_LPCG_CLK_0>; - clock-names =3D "per"; + clocks =3D <&i2c0_lpcg IMX_LPCG_CLK_0>, + <&i2c0_lpcg IMX_LPCG_CLK_4>; + clock-names =3D "per", "ipg"; assigned-clocks =3D <&clk IMX_SC_R_I2C_0 IMX_SC_PM_CLK_PER>; assigned-clock-rates =3D <24000000>; power-domains =3D <&pd IMX_SC_R_I2C_0>; @@ -122,8 +123,9 @@ i2c0: i2c@5a800000 { i2c1: i2c@5a810000 { reg =3D <0x5a810000 0x4000>; interrupts =3D ; - clocks =3D <&i2c1_lpcg IMX_LPCG_CLK_0>; - clock-names =3D "per"; + clocks =3D <&i2c1_lpcg IMX_LPCG_CLK_0>, + <&i2c1_lpcg IMX_LPCG_CLK_4>; + clock-names =3D "per", "ipg"; assigned-clocks =3D <&clk IMX_SC_R_I2C_1 IMX_SC_PM_CLK_PER>; assigned-clock-rates =3D <24000000>; power-domains =3D <&pd IMX_SC_R_I2C_1>; @@ -133,8 +135,9 @@ i2c1: i2c@5a810000 { i2c2: i2c@5a820000 { reg =3D <0x5a820000 0x4000>; interrupts =3D ; - clocks =3D <&i2c2_lpcg IMX_LPCG_CLK_0>; - clock-names =3D "per"; + clocks =3D <&i2c2_lpcg IMX_LPCG_CLK_0>, + <&i2c2_lpcg IMX_LPCG_CLK_4>; + clock-names =3D "per", "ipg"; assigned-clocks =3D <&clk IMX_SC_R_I2C_2 IMX_SC_PM_CLK_PER>; assigned-clock-rates =3D <24000000>; power-domains =3D <&pd IMX_SC_R_I2C_2>; @@ -144,8 +147,9 @@ i2c2: i2c@5a820000 { i2c3: i2c@5a830000 { reg =3D <0x5a830000 0x4000>; interrupts =3D ; - clocks =3D <&i2c3_lpcg IMX_LPCG_CLK_0>; - clock-names =3D "per"; + clocks =3D <&i2c3_lpcg IMX_LPCG_CLK_0>, + <&i2c3_lpcg IMX_LPCG_CLK_4>; + clock-names =3D "per", "ipg"; assigned-clocks =3D <&clk IMX_SC_R_I2C_3 IMX_SC_PM_CLK_PER>; 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Tue, 23 Aug 2022 03:01:14 +0000 From: "Peng Fan (OSS)" To: wsa@kernel.org, aisheng.dong@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, xiaoning.wang@nxp.com, Peng Fan Subject: [PATCH V3 6/7] ARM: dts: imx7ulp: Add IPG clock for lpi2c Date: Tue, 23 Aug 2022 11:02:14 +0800 Message-Id: <20220823030215.870414-7-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220823030215.870414-1-peng.fan@oss.nxp.com> References: <20220823030215.870414-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SGXP274CA0024.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b8::36) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 0f45bcd9-ead4-42cb-1a97-08da84b3bd6b X-MS-TrafficTypeDiagnostic: DU2PR04MB8824:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Peng Fan LPI2C requires two clocks, add the missed IPG clock. Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- arch/arm/boot/dts/imx7ulp.dtsi | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi index 9c7abec90a89..7f7d2d5122fb 100644 --- a/arch/arm/boot/dts/imx7ulp.dtsi +++ b/arch/arm/boot/dts/imx7ulp.dtsi @@ -328,8 +328,9 @@ lpi2c6: i2c@40a40000 { compatible =3D "fsl,imx7ulp-lpi2c"; reg =3D <0x40a40000 0x10000>; interrupts =3D ; - clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C6>; - clock-names =3D "per"; + clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C6>, + <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>; + clock-names =3D "per", "ipg"; assigned-clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C6>; assigned-clock-parents =3D <&scg1 IMX7ULP_CLK_FIRC>; assigned-clock-rates =3D <48000000>; @@ -340,8 +341,9 @@ lpi2c7: i2c@40a50000 { compatible =3D "fsl,imx7ulp-lpi2c"; reg =3D <0x40a50000 0x10000>; interrupts =3D ; - clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C7>; - clock-names =3D "per"; + clocks =3D <&pcc3 IMX7ULP_CLK_LPI2C7>, + <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>; 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Tue, 23 Aug 2022 03:01:18 +0000 From: "Peng Fan (OSS)" To: wsa@kernel.org, aisheng.dong@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, xiaoning.wang@nxp.com, Peng Fan Subject: [PATCH V3 7/7] i2c: imx-lpi2c: use bulk clk API Date: Tue, 23 Aug 2022 11:02:15 +0800 Message-Id: <20220823030215.870414-8-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220823030215.870414-1-peng.fan@oss.nxp.com> References: <20220823030215.870414-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SGXP274CA0024.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b8::36) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: aa0e6e7b-36f4-4e8f-34d7-08da84b3c015 X-MS-TrafficTypeDiagnostic: DU2PR04MB8824:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Peng Fan The current driver only support one clock, however LPI2C requires two clocks: PER and IPG. To make sure old dts could work with newer kernel, use bulk clk API. Reviewed-by: Dong Aisheng Signed-off-by: Peng Fan --- drivers/i2c/busses/i2c-imx-lpi2c.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c b/drivers/i2c/busses/i2c-im= x-lpi2c.c index b51ab3cad2b1..188f2a36d2fd 100644 --- a/drivers/i2c/busses/i2c-imx-lpi2c.c +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c @@ -94,7 +94,8 @@ enum lpi2c_imx_pincfg { =20 struct lpi2c_imx_struct { struct i2c_adapter adapter; - struct clk *clk; + int num_clks; + struct clk_bulk_data *clks; void __iomem *base; __u8 *rx_buf; __u8 *tx_buf; @@ -207,7 +208,7 @@ static int lpi2c_imx_config(struct lpi2c_imx_struct *lp= i2c_imx) =20 lpi2c_imx_set_mode(lpi2c_imx); =20 - clk_rate =3D clk_get_rate(lpi2c_imx->clk); + clk_rate =3D clk_get_rate(lpi2c_imx->clks[0].clk); if (lpi2c_imx->mode =3D=3D HS || lpi2c_imx->mode =3D=3D ULTRA_FAST) filt =3D 0; else @@ -561,11 +562,12 @@ static int lpi2c_imx_probe(struct platform_device *pd= ev) strscpy(lpi2c_imx->adapter.name, pdev->name, sizeof(lpi2c_imx->adapter.name)); =20 - lpi2c_imx->clk =3D devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(lpi2c_imx->clk)) { - dev_err(&pdev->dev, "can't get I2C peripheral clock\n"); - return PTR_ERR(lpi2c_imx->clk); + ret =3D devm_clk_bulk_get_all(&pdev->dev, &lpi2c_imx->clks); + if (ret < 0) { + dev_err(&pdev->dev, "can't get I2C peripheral clock, ret=3D%d\n", ret); + return ret; } + lpi2c_imx->num_clks =3D ret; =20 ret =3D of_property_read_u32(pdev->dev.of_node, "clock-frequency", &lpi2c_imx->bitrate); @@ -582,11 +584,9 @@ static int lpi2c_imx_probe(struct platform_device *pde= v) i2c_set_adapdata(&lpi2c_imx->adapter, lpi2c_imx); platform_set_drvdata(pdev, lpi2c_imx); =20 - ret =3D clk_prepare_enable(lpi2c_imx->clk); - if (ret) { - dev_err(&pdev->dev, "clk enable failed %d\n", ret); + ret =3D clk_bulk_prepare_enable(lpi2c_imx->num_clks, lpi2c_imx->clks); + if (ret) return ret; - } =20 pm_runtime_set_autosuspend_delay(&pdev->dev, I2C_PM_TIMEOUT); pm_runtime_use_autosuspend(&pdev->dev); @@ -633,7 +633,7 @@ static int __maybe_unused lpi2c_runtime_suspend(struct = device *dev) { struct lpi2c_imx_struct *lpi2c_imx =3D dev_get_drvdata(dev); =20 - clk_disable_unprepare(lpi2c_imx->clk); + clk_bulk_disable_unprepare(lpi2c_imx->num_clks, lpi2c_imx->clks); pinctrl_pm_select_sleep_state(dev); =20 return 0; @@ -645,7 +645,7 @@ static int __maybe_unused lpi2c_runtime_resume(struct d= evice *dev) int ret; =20 pinctrl_pm_select_default_state(dev); - ret =3D clk_prepare_enable(lpi2c_imx->clk); + ret =3D clk_bulk_prepare_enable(lpi2c_imx->num_clks, lpi2c_imx->clks); if (ret) { dev_err(dev, "failed to enable I2C clock, ret=3D%d\n", ret); return ret; --=20 2.37.1