From nobody Sun Apr 19 07:18:08 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 B76C3C433EF for ; Tue, 5 Jul 2022 07:57:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229600AbiGEH5F (ORCPT ); Tue, 5 Jul 2022 03:57:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229972AbiGEH5A (ORCPT ); Tue, 5 Jul 2022 03:57:00 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C896D13D74 for ; Tue, 5 Jul 2022 00:56:58 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id u12-20020a05600c210c00b003a02b16d2b8so6796588wml.2 for ; Tue, 05 Jul 2022 00:56:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6b5YvPP6Cm40ZHiN9lWJqY1BKAIBQa8OhFlxO39IAZI=; b=gP5wyRaik5C0Bjp8IpFbJIrMLOKs8yPVyFoIC42ZhaAjw9hbxpQaNPA6lwZH/hBMMR Az65dtQPZvxgKhuFZAewgXi4f3rJH6dyxYi6BBEgm7qh2Cz9WwuwBdLMDl1wrG9CP16B De60OBUbiyPKd9GnYvzAMQ+gAFmXVFzUbLKGx+kL5oy931YQsYHcsgf1uL+qse8VdlyC 9vb30Wz3+t94By/y3yfcb3Wd/LWhq71v4N8NJBhKlHEkFExBz0anPACZMLfl/7139uTl rrZc+Huh/mbAFyhHO8OB5ogxAzNEoIX3RDYTnHQDd/uoCIP7Yev8tgOL8uu1dqz3cooA wQpw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6b5YvPP6Cm40ZHiN9lWJqY1BKAIBQa8OhFlxO39IAZI=; b=QzQrkPYC5JkWsLwwpMWe99eAzJNzGFgha2jKahu+CFeLcV+4qrG9Adhk92G7mmpcC/ fvMviv4EMm7OcpsSdE4F4PQEyv+pQ+d5xCo5oSs7Nr7Clj0nq3MUlkEA08YqP6RnGINC q+H5ZlVvgHHN3/bAb44CMszIz6fc2UW0VSzvjwOlX+9rfZYPoxvslH7eopWuHGLsTf5o /zN8TIuJOdEyi4Otq3CLnb6F4uGCwTEjDwb+vi+O4Y6lubBmvqUeZz5hYOOMcPNTJcYN tfqmGMzJEYx2wGtByuG25EdCbkcTN9cXG5tVPPhnmCrRDY5QD5vw5SQQze8uCBfmi+Zy mQ4A== X-Gm-Message-State: AJIora++MxQrws9DdUOjvqmmMidHm+nSjb2tN9ZqMUK3R3pAc1/L4zU3 21K+BfVWXa2MeSfsjGc5oKpyxQ== X-Google-Smtp-Source: AGRyM1uMxsAd5+tDhIMxilNng66yioFL7S4YFsUh8CVh5sqh2ZnJ1n8jfi26E8hTZse1QgEQddWSEQ== X-Received: by 2002:a05:600c:3ac3:b0:3a0:45b6:7efb with SMTP id d3-20020a05600c3ac300b003a045b67efbmr36527404wms.183.1657007817253; Tue, 05 Jul 2022 00:56:57 -0700 (PDT) Received: from localhost.localdomain ([2001:861:44c0:66c0:3c4f:78be:dc90:14f9]) by smtp.gmail.com with ESMTPSA id v17-20020a5d5911000000b0021bbdc3375fsm8323473wrd.68.2022.07.05.00.56.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jul 2022 00:56:56 -0700 (PDT) From: Neil Armstrong To: kishon@ti.com, vkoul@kernel.org, devicetree@vger.kernel.org Cc: linux-phy@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Neil Armstrong , Rob Herring Subject: [PATCH v5 1/2] dt-bindings: phy: add Amlogic G12A Analog MIPI D-PHY bindings Date: Tue, 5 Jul 2022 09:56:49 +0200 Message-Id: <20220705075650.3165348-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220705075650.3165348-1-narmstrong@baylibre.com> References: <20220705075650.3165348-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1543; h=from:subject; bh=iOBx9fr8HbPBX94EGJGOKU8CqvBCi3FrRoD0vFQxImA=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBiw+6hxEXENvi29/8PBCp5BxvMDA7bv97mLUSzbfas Q+zBXg+JAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCYsPuoQAKCRB33NvayMhJ0ZxbD/ 9ABJc/gmqqibXPvDP7CwOXJs8Lwvf9rKLthCjcc6dMMYJ5jtc56LQggDPLxJwdGFXud+5OHshvoz9c uIm3aXTBe4BA+/C0FO+yKgtqV9BXUecjOQIbWCpfsJc8sC/qvo/oiKDnbzQKYTnOR2gKZO1dntpg8k PXjYR0wnPyCW9baVjL/8BJw0LLOpteulqtPK4ji36GoTIGKqhoLHLbDi+wDfxDFRnB294cdlv5KDxn z3EG5QKI7cWJBCfKVSmb3H0A39yzcWr+04v8+vxhraEtePgfWteL5AINR+CW0kzYZzTxJ1348TekIT 7YlmyuaRwpq69CArNMwHv65oIWV1cyV8ttNO7SKWJL0cL79Ck9NHnEdDJ98DvmQkNhVEJhRfYXE7ak O64wonKAv86sM77DSkXmT8m6Req/mvqQREyKbrg5tmbJ2Ju8Z/YWb4UvA4N+5mcTB8+HTWKFQvZZwW Ahm+3m55tagtDZRslRtOVG6Z/kGIT5l43OdYL4mX1qHkiUMixOwJLZxyMX263tPpEfSwguMJYDoZuk U1BJa/Dz9jwHSSZhQTr8YCfqj+kTkIlfsoEaateRbo7gj7mluDJftuWlOb1zp79ZOspLLX+vZrb5BC V0P+LpUwBeb3iHbui/gfMcw7y9JDbkDoTygn+LcYXLgUfHux4BoJMu1OYTIw== X-Developer-Key: i=narmstrong@baylibre.com; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The Amlogic G12A SoCs embeds an Analog MIPI D-PHY to communicate with DSI panels, this adds the bindings. This Analog D-PHY works with a separate Digital MIPI D-PHY. Signed-off-by: Neil Armstrong Reviewed-by: Rob Herring --- .../phy/amlogic,g12a-mipi-dphy-analog.yaml | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/amlogic,g12a-mipi= -dphy-analog.yaml diff --git a/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-a= nalog.yaml b/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-a= nalog.yaml new file mode 100644 index 000000000000..7aa0c05d6ce4 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-analog.y= aml @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/phy/amlogic,g12a-mipi-dphy-analog.yaml= #" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Amlogic G12A MIPI analog PHY + +maintainers: + - Neil Armstrong + +properties: + compatible: + const: amlogic,g12a-mipi-dphy-analog + + "#phy-cells": + const: 0 + + reg: + maxItems: 1 + +required: + - compatible + - reg + - "#phy-cells" + +additionalProperties: false + +examples: + - | + phy@0 { + compatible =3D "amlogic,g12a-mipi-dphy-analog"; + reg =3D <0x0 0xc>; + #phy-cells =3D <0>; + }; --=20 2.25.1 From nobody Sun Apr 19 07:18:08 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 28CEEC433EF for ; Tue, 5 Jul 2022 07:57:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229739AbiGEH5I (ORCPT ); Tue, 5 Jul 2022 03:57:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230152AbiGEH5B (ORCPT ); Tue, 5 Jul 2022 03:57:01 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BC5D3101F5 for ; Tue, 5 Jul 2022 00:56:59 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id v16so4874527wrd.13 for ; 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Tue, 05 Jul 2022 00:56:58 -0700 (PDT) Received: from localhost.localdomain ([2001:861:44c0:66c0:3c4f:78be:dc90:14f9]) by smtp.gmail.com with ESMTPSA id v17-20020a5d5911000000b0021bbdc3375fsm8323473wrd.68.2022.07.05.00.56.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jul 2022 00:56:57 -0700 (PDT) From: Neil Armstrong To: kishon@ti.com, vkoul@kernel.org Cc: linux-phy@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Neil Armstrong Subject: [PATCH v5 2/2] phy: amlogic: Add G12A Analog MIPI D-PHY driver Date: Tue, 5 Jul 2022 09:56:50 +0200 Message-Id: <20220705075650.3165348-3-narmstrong@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220705075650.3165348-1-narmstrong@baylibre.com> References: <20220705075650.3165348-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=7194; h=from:subject; bh=wxkKNsLVn6IWIMMHUVZIfRxfNrTTYY4O5SgTgDU5lVY=; 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charset="utf-8" The Amlogic G12A SoCs embeds an Analog MIPI D-PHY used to communicate with = DSI panels. Signed-off-by: Neil Armstrong --- drivers/phy/amlogic/Kconfig | 12 ++ drivers/phy/amlogic/Makefile | 1 + .../amlogic/phy-meson-g12a-mipi-dphy-analog.c | 171 ++++++++++++++++++ 3 files changed, 184 insertions(+) create mode 100644 drivers/phy/amlogic/phy-meson-g12a-mipi-dphy-analog.c diff --git a/drivers/phy/amlogic/Kconfig b/drivers/phy/amlogic/Kconfig index 486ca23aba32..ce7ba3eb2a8e 100644 --- a/drivers/phy/amlogic/Kconfig +++ b/drivers/phy/amlogic/Kconfig @@ -37,6 +37,18 @@ config PHY_MESON_GXL_USB2 GXL and GXM SoCs. If unsure, say N. =20 +config PHY_MESON_G12A_MIPI_DPHY_ANALOG + tristate "Meson G12A MIPI Analog DPHY driver" + default ARCH_MESON + depends on OF && (ARCH_MESON || COMPILE_TEST) + select GENERIC_PHY + select MFD_SYSCON + select GENERIC_PHY_MIPI_DPHY + help + Enable this to support the Meson MIPI Analog DPHY found in Meson G12A + SoCs. + If unsure, say N. + config PHY_MESON_G12A_USB2 tristate "Meson G12A USB2 PHY driver" default ARCH_MESON diff --git a/drivers/phy/amlogic/Makefile b/drivers/phy/amlogic/Makefile index c0886c850bb0..91e3b9790c03 100644 --- a/drivers/phy/amlogic/Makefile +++ b/drivers/phy/amlogic/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_PHY_MESON8B_USB2) +=3D phy-meson8b-usb2.o obj-$(CONFIG_PHY_MESON_GXL_USB2) +=3D phy-meson-gxl-usb2.o obj-$(CONFIG_PHY_MESON_G12A_USB2) +=3D phy-meson-g12a-usb2.o obj-$(CONFIG_PHY_MESON_G12A_USB3_PCIE) +=3D phy-meson-g12a-usb3-pcie.o +obj-$(CONFIG_PHY_MESON_G12A_MIPI_DPHY_ANALOG) +=3D phy-meson-g12a-mipi-dph= y-analog.o obj-$(CONFIG_PHY_MESON_AXG_PCIE) +=3D phy-meson-axg-pcie.o obj-$(CONFIG_PHY_MESON_AXG_MIPI_PCIE_ANALOG) +=3D phy-meson-axg-mipi-pcie-= analog.o obj-$(CONFIG_PHY_MESON_AXG_MIPI_DPHY) +=3D phy-meson-axg-mipi-dphy.o diff --git a/drivers/phy/amlogic/phy-meson-g12a-mipi-dphy-analog.c b/driver= s/phy/amlogic/phy-meson-g12a-mipi-dphy-analog.c new file mode 100644 index 000000000000..c14089fa7db4 --- /dev/null +++ b/drivers/phy/amlogic/phy-meson-g12a-mipi-dphy-analog.c @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Meson G12A MIPI DSI Analog PHY + * + * Copyright (C) 2018 Amlogic, Inc. All rights reserved + * Copyright (C) 2022 BayLibre, SAS + * Author: Neil Armstrong + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define HHI_MIPI_CNTL0 0x00 +#define HHI_MIPI_CNTL0_DIF_REF_CTL1 GENMASK(31, 16) +#define HHI_MIPI_CNTL0_DIF_REF_CTL0 GENMASK(15, 0) + +#define HHI_MIPI_CNTL1 0x04 +#define HHI_MIPI_CNTL1_BANDGAP BIT(16) +#define HHI_MIPI_CNTL2_DIF_REF_CTL2 GENMASK(15, 0) + +#define HHI_MIPI_CNTL2 0x08 +#define HHI_MIPI_CNTL2_DIF_TX_CTL1 GENMASK(31, 16) +#define HHI_MIPI_CNTL2_CH_EN GENMASK(15, 11) +#define HHI_MIPI_CNTL2_DIF_TX_CTL0 GENMASK(10, 0) + +#define DSI_LANE_0 BIT(4) +#define DSI_LANE_1 BIT(3) +#define DSI_LANE_CLK BIT(2) +#define DSI_LANE_2 BIT(1) +#define DSI_LANE_3 BIT(0) + +struct phy_g12a_mipi_dphy_analog_priv { + struct phy *phy; + struct regmap *regmap; + struct phy_configure_opts_mipi_dphy config; +}; + +static int phy_g12a_mipi_dphy_analog_configure(struct phy *phy, + union phy_configure_opts *opts) +{ + struct phy_g12a_mipi_dphy_analog_priv *priv =3D phy_get_drvdata(phy); + int ret; + + ret =3D phy_mipi_dphy_config_validate(&opts->mipi_dphy); + if (ret) + return ret; + + memcpy(&priv->config, opts, sizeof(priv->config)); + + return 0; +} + +static int phy_g12a_mipi_dphy_analog_power_on(struct phy *phy) +{ + struct phy_g12a_mipi_dphy_analog_priv *priv =3D phy_get_drvdata(phy); + unsigned int reg; + + regmap_write(priv->regmap, HHI_MIPI_CNTL0, + FIELD_PREP(HHI_MIPI_CNTL0_DIF_REF_CTL0, 0x8) | + FIELD_PREP(HHI_MIPI_CNTL0_DIF_REF_CTL1, 0xa487)); + + regmap_write(priv->regmap, HHI_MIPI_CNTL1, + FIELD_PREP(HHI_MIPI_CNTL2_DIF_REF_CTL2, 0x2e) | + HHI_MIPI_CNTL1_BANDGAP); + + regmap_write(priv->regmap, HHI_MIPI_CNTL2, + FIELD_PREP(HHI_MIPI_CNTL2_DIF_TX_CTL0, 0x459) | + FIELD_PREP(HHI_MIPI_CNTL2_DIF_TX_CTL1, 0x2680)); + + reg =3D DSI_LANE_CLK; + switch (priv->config.lanes) { + case 4: + reg |=3D DSI_LANE_3; + fallthrough; + case 3: + reg |=3D DSI_LANE_2; + fallthrough; + case 2: + reg |=3D DSI_LANE_1; + fallthrough; + case 1: + reg |=3D DSI_LANE_0; + break; + default: + reg =3D 0; + } + + regmap_update_bits(priv->regmap, HHI_MIPI_CNTL2, + HHI_MIPI_CNTL2_CH_EN, + FIELD_PREP(HHI_MIPI_CNTL2_CH_EN, reg)); + + return 0; +} + +static int phy_g12a_mipi_dphy_analog_power_off(struct phy *phy) +{ + struct phy_g12a_mipi_dphy_analog_priv *priv =3D phy_get_drvdata(phy); + + regmap_write(priv->regmap, HHI_MIPI_CNTL0, 0); + regmap_write(priv->regmap, HHI_MIPI_CNTL1, 0); + regmap_write(priv->regmap, HHI_MIPI_CNTL2, 0); + + return 0; +} + +static const struct phy_ops phy_g12a_mipi_dphy_analog_ops =3D { + .configure =3D phy_g12a_mipi_dphy_analog_configure, + .power_on =3D phy_g12a_mipi_dphy_analog_power_on, + .power_off =3D phy_g12a_mipi_dphy_analog_power_off, + .owner =3D THIS_MODULE, +}; + +static int phy_g12a_mipi_dphy_analog_probe(struct platform_device *pdev) +{ + struct phy_provider *phy; + struct device *dev =3D &pdev->dev; + struct phy_g12a_mipi_dphy_analog_priv *priv; + struct device_node *np =3D dev->of_node, *parent_np; + struct regmap *map; + + priv =3D devm_kmalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + /* Get the hhi system controller node */ + parent_np =3D of_get_parent(np); + map =3D syscon_node_to_regmap(parent_np); + of_node_put(parent_np); + if (IS_ERR(map)) + return dev_err_probe(dev, PTR_ERR(map), "failed to get HHI regmap\n"); + + priv->regmap =3D map; + + priv->phy =3D devm_phy_create(dev, np, &phy_g12a_mipi_dphy_analog_ops); + if (IS_ERR(priv->phy)) + return dev_err_probe(dev, PTR_ERR(priv->phy), "failed to create PHY\n"); + + phy_set_drvdata(priv->phy, priv); + dev_set_drvdata(dev, priv); + + phy =3D devm_of_phy_provider_register(dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy); +} + +static const struct of_device_id phy_g12a_mipi_dphy_analog_of_match[] =3D { + { + .compatible =3D "amlogic,g12a-mipi-dphy-analog", + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, phy_g12a_mipi_dphy_analog_of_match); + +static struct platform_driver phy_g12a_mipi_dphy_analog_driver =3D { + .probe =3D phy_g12a_mipi_dphy_analog_probe, + .driver =3D { + .name =3D "phy-meson-g12a-mipi-dphy-analog", + .of_match_table =3D phy_g12a_mipi_dphy_analog_of_match, + }, +}; +module_platform_driver(phy_g12a_mipi_dphy_analog_driver); + +MODULE_AUTHOR("Neil Armstrong "); +MODULE_DESCRIPTION("Meson G12A MIPI Analog D-PHY driver"); +MODULE_LICENSE("GPL v2"); --=20 2.25.1