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Wed, 24 May 2023 01:30:47 -0700 (PDT) Received: from localhost.localdomain ([2a01:e0a:55f:21e0:9e19:4376:dea6:dbfa]) by smtp.gmail.com with ESMTPSA id n11-20020a5d484b000000b00307c0afc030sm13871832wrs.4.2023.05.24.01.30.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 May 2023 01:30:46 -0700 (PDT) From: Julien Stephan To: Cc: mkorpershoek@baylibre.com, khilman@baylibre.com, Julien Stephan , Andy Hsieh , AngeloGioacchino Del Regno , Chunfeng Yun , Chun-Kuang Hu , Conor Dooley , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Kishon Vijay Abraham I , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org, Matthias Brugger , Philipp Zabel , Rob Herring , Vinod Koul Subject: [PATCH v3 1/3] dt-bindings: phy: add PHY_TYPE_CDPHY definition Date: Wed, 24 May 2023 10:30:30 +0200 Message-Id: <20230524083033.486490-2-jstephan@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524083033.486490-1-jstephan@baylibre.com> References: <20230524083033.486490-1-jstephan@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_013052_830184_950D850B X-CRM114-Status: UNSURE ( 9.34 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Add definition for CDPHY phy type that can be configured in either D-PHY mode or C-PHY mode Signed-off-by: Julien Stephan Reviewed-by: AngeloGioacchino Del Regno --- include/dt-bindings/phy/phy.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h index 6b901b342348..a19d85dbbf16 100644 --- a/include/dt-bindings/phy/phy.h +++ b/include/dt-bindings/phy/phy.h @@ -23,5 +23,6 @@ #define PHY_TYPE_DPHY 10 #define PHY_TYPE_CPHY 11 #define PHY_TYPE_USXGMII 12 +#define PHY_TYPE_CDPHY 13 #endif /* _DT_BINDINGS_PHY */ From patchwork Wed May 24 08:30:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Stephan X-Patchwork-Id: 13253690 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C0572C77B73 for ; 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Wed, 24 May 2023 01:30:50 -0700 (PDT) From: Julien Stephan To: Cc: mkorpershoek@baylibre.com, khilman@baylibre.com, Florian Sylvestre , Julien Stephan , Andy Hsieh , AngeloGioacchino Del Regno , Chunfeng Yun , Chun-Kuang Hu , Conor Dooley , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Kishon Vijay Abraham I , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org, Matthias Brugger , Philipp Zabel , Rob Herring , Vinod Koul Subject: [PATCH v3 2/3] dt-bindings: phy: add mediatek MIPI CD-PHY module v0.5 Date: Wed, 24 May 2023 10:30:31 +0200 Message-Id: <20230524083033.486490-3-jstephan@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524083033.486490-1-jstephan@baylibre.com> References: <20230524083033.486490-1-jstephan@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_013053_608453_6DD6A850 X-CRM114-Status: GOOD ( 16.38 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org From: Florian Sylvestre This adds the bindings, for the MIPI CD-PHY module v0.5 embedded in some Mediatek soc, such as the mt8365 Signed-off-by: Florian Sylvestre Signed-off-by: Julien Stephan --- .../bindings/phy/mediatek,mt8365-csi-rx.yaml | 67 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml diff --git a/Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml b/Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml new file mode 100644 index 000000000000..a1bd96a98051 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2023 MediaTek, BayLibre +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/mediatek,mt8365-csi-rx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek Sensor Interface MIPI CSI CD-PHY + +maintainers: + - Julien Stephan + - Andy Hsieh + +description: + The SENINF CD-PHY is a set of CD-PHY connected to the SENINF CSI-2 + receivers. The number of PHYs depends on the SoC model. + Depending on the SoC model, each PHYs can be either CD-PHY or D-PHY only + capable. + +properties: + compatible: + enum: + - mediatek,mt8365-csi-rx + + reg: + maxItems: 1 + + '#phy-cells': + const: 0 + + mediatek,phy-type: + description: + Specify the phy type. Supported phy are D-PHY only or CD-PHY capable phys. + See include/dt-bindings/phy/phy.h for constants. + enum: [10, 13] + $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + - reg + - mediatek,phy-type + - '#phy-cells' + +additionalProperties: false + +examples: + - | + #include + soc { + #address-cells = <2>; + #size-cells = <2>; + + csi0_rx: phy@11c10000 { + compatible = "mediatek,mt8365-csi-rx"; + reg = <0 0x11c10000 0 0x2000>; + mediatek,phy-type = ; + #phy-cells = <0>; + }; + + csi1_rx: phy@11c12000 { + compatible = "mediatek,mt8365-csi-rx"; + reg = <0 0x11c12000 0 0x2000>; + mediatek,phy-type = ; + #phy-cells = <0>; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index b81e9fcc66cb..5da594fbb761 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13184,6 +13184,12 @@ F: Documentation/devicetree/bindings/media/mediatek-vpu.txt F: drivers/media/platform/mediatek/vcodec/ F: drivers/media/platform/mediatek/vpu/ +MEDIATEK MIPI-CSI CDPHY DRIVER +M: Julien Stephan +M: Andy Hsieh +S: Supported +F: Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml + MEDIATEK MMC/SD/SDIO DRIVER M: Chaotian Jing S: Maintained From patchwork Wed May 24 08:30:32 2023 Content-Type: text/plain; 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Wed, 24 May 2023 01:30:54 -0700 (PDT) Received: from localhost.localdomain ([2a01:e0a:55f:21e0:9e19:4376:dea6:dbfa]) by smtp.gmail.com with ESMTPSA id n11-20020a5d484b000000b00307c0afc030sm13871832wrs.4.2023.05.24.01.30.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 May 2023 01:30:54 -0700 (PDT) From: Julien Stephan To: Cc: mkorpershoek@baylibre.com, khilman@baylibre.com, Phi-bang Nguyen , Louis Kuo , Julien Stephan , Andy Hsieh , AngeloGioacchino Del Regno , Chunfeng Yun , Chun-Kuang Hu , Conor Dooley , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Kishon Vijay Abraham I , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org, Matthias Brugger , Philipp Zabel , Rob Herring , Vinod Koul Subject: [PATCH v3 3/3] phy: mtk-mipi-csi: add driver for CSI phy Date: Wed, 24 May 2023 10:30:32 +0200 Message-Id: <20230524083033.486490-4-jstephan@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230524083033.486490-1-jstephan@baylibre.com> References: <20230524083033.486490-1-jstephan@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_013102_112892_D5636C8E X-CRM114-Status: GOOD ( 23.01 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org From: Phi-bang Nguyen This is a new driver that supports the MIPI CSI CD-PHY version 0.5 The number of PHYs depend on the SoC. Each PHY can support D-PHY only or CD-PHY configuration. The driver supports only D-PHY mode, so CD-PHY compatible PHY are configured in D-PHY mode. Signed-off-by: Louis Kuo Signed-off-by: Phi-bang Nguyen [Julien Stephan: refactor code] [Julien Stephan: simplify driver model: one instance per phy vs one instance for all phys] Co-developed-by: Julien Stephan Signed-off-by: Julien Stephan --- MAINTAINERS | 1 + drivers/phy/mediatek/Kconfig | 12 + drivers/phy/mediatek/Makefile | 2 + .../mediatek/phy-mtk-mipi-csi-0-5-rx-reg.h | 62 ++++ drivers/phy/mediatek/phy-mtk-mipi-csi-0-5.c | 278 ++++++++++++++++++ 5 files changed, 355 insertions(+) create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi-0-5-rx-reg.h create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi-0-5.c diff --git a/MAINTAINERS b/MAINTAINERS index 5da594fbb761..e505023ffda1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13189,6 +13189,7 @@ M: Julien Stephan M: Andy Hsieh S: Supported F: Documentation/devicetree/bindings/phy/mediatek,mt8365-csi-rx.yaml +F: drivers/phy/mediatek/phy-mtk-mipi-csi-0-5* MEDIATEK MMC/SD/SDIO DRIVER M: Chaotian Jing diff --git a/drivers/phy/mediatek/Kconfig b/drivers/phy/mediatek/Kconfig index 3125ecb5d119..7088382ebc9e 100644 --- a/drivers/phy/mediatek/Kconfig +++ b/drivers/phy/mediatek/Kconfig @@ -74,3 +74,15 @@ config PHY_MTK_DP select GENERIC_PHY help Support DisplayPort PHY for MediaTek SoCs. + +config PHY_MTK_MIPI_CSI_0_5 + tristate "MediaTek MIPI CSI CD-PHY v0.5 Driver" + depends on ARCH_MEDIATEK || COMPILE_TEST + depends on OF + select GENERIC_PHY + help + Enable this to support the MIPI CSI CD-PHY receiver version 0.5. + The driver supports multiple CSI cdphy ports simultaneously. + + To compile this driver as a module, choose M here: the + module will be called phy-mtk-mipi-csi-0-5. diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile index c9a50395533e..63f2fa3ec7e5 100644 --- a/drivers/phy/mediatek/Makefile +++ b/drivers/phy/mediatek/Makefile @@ -19,3 +19,5 @@ phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o phy-mtk-mipi-dsi-drv-y += phy-mtk-mipi-dsi-mt8173.o phy-mtk-mipi-dsi-drv-y += phy-mtk-mipi-dsi-mt8183.o obj-$(CONFIG_PHY_MTK_MIPI_DSI) += phy-mtk-mipi-dsi-drv.o + +obj-$(CONFIG_PHY_MTK_MIPI_CSI_0_5) += phy-mtk-mipi-csi-0-5.o diff --git a/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5-rx-reg.h b/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5-rx-reg.h new file mode 100644 index 000000000000..97b4c27a1699 --- /dev/null +++ b/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5-rx-reg.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2023, MediaTek Inc. + * Copyright (c) 2023, BayLibre Inc. + */ + +#ifndef __PHY_MTK_MIPI_CSI_V_0_5_RX_REG_H__ +#define __PHY_MTK_MIPI_CSI_V_0_5_RX_REG_H__ + +/* + * CSI1 and CSI2 are identical, and similar to CSI0. All CSIX macros are + * applicable to the three PHYs. Where differences exist, they are denoted by + * macro names using CSI0 and CSI1, the latter being applicable to CSI1 and + * CSI2 alike. + */ + +#define MIPI_RX_ANA00_CSIXA 0x0000 +#define RG_CSI0A_CPHY_EN BIT(0) +#define RG_CSIXA_EQ_PROTECT_EN BIT(1) +#define RG_CSIXA_BG_LPF_EN BIT(2) +#define RG_CSIXA_BG_CORE_EN BIT(3) +#define RG_CSIXA_DPHY_L0_CKMODE_EN BIT(5) +#define RG_CSIXA_DPHY_L0_CKSEL BIT(6) +#define RG_CSIXA_DPHY_L1_CKMODE_EN BIT(8) +#define RG_CSIXA_DPHY_L1_CKSEL BIT(9) +#define RG_CSIXA_DPHY_L2_CKMODE_EN BIT(11) +#define RG_CSIXA_DPHY_L2_CKSEL BIT(12) + +#define MIPI_RX_ANA18_CSIXA 0x0018 +#define RG_CSI0A_L0_T0AB_EQ_IS GENMASK(5, 4) +#define RG_CSI0A_L0_T0AB_EQ_BW GENMASK(7, 6) +#define RG_CSI0A_L1_T1AB_EQ_IS GENMASK(21, 20) +#define RG_CSI0A_L1_T1AB_EQ_BW GENMASK(23, 22) +#define RG_CSI0A_L2_T1BC_EQ_IS GENMASK(21, 20) +#define RG_CSI0A_L2_T1BC_EQ_BW GENMASK(23, 22) +#define RG_CSI1A_L0_EQ_IS GENMASK(5, 4) +#define RG_CSI1A_L0_EQ_BW GENMASK(7, 6) +#define RG_CSI1A_L1_EQ_IS GENMASK(21, 20) +#define RG_CSI1A_L1_EQ_BW GENMASK(23, 22) +#define RG_CSI1A_L2_EQ_IS GENMASK(5, 4) +#define RG_CSI1A_L2_EQ_BW GENMASK(7, 6) + +#define MIPI_RX_ANA1C_CSIXA 0x001c +#define MIPI_RX_ANA20_CSI0A 0x0020 + +#define MIPI_RX_ANA24_CSIXA 0x0024 +#define RG_CSIXA_RESERVE GENMASK(31, 24) + +#define MIPI_RX_ANA40_CSIXA 0x0040 +#define RG_CSIXA_CPHY_FMCK_SEL GENMASK(1, 0) +#define RG_CSIXA_ASYNC_OPTION GENMASK(7, 4) +#define RG_CSIXA_CPHY_SPARE GENMASK(31, 16) + +#define MIPI_RX_WRAPPER80_CSIXA 0x0080 +#define CSR_CSI_RST_MODE GENMASK(17, 16) + +#define MIPI_RX_ANAA8_CSIXA 0x00a8 +#define RG_CSIXA_CDPHY_L0_T0_BYTECK_INVERT BIT(0) +#define RG_CSIXA_DPHY_L1_BYTECK_INVERT BIT(1) +#define RG_CSIXA_CDPHY_L2_T1_BYTECK_INVERT BIT(2) + +#endif diff --git a/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5.c b/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5.c new file mode 100644 index 000000000000..6eafd7c0514c --- /dev/null +++ b/drivers/phy/mediatek/phy-mtk-mipi-csi-0-5.c @@ -0,0 +1,278 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * MediaTek MIPI CSI v0.5 driver + * + * Copyright (c) 2023, MediaTek Inc. + * Copyright (c) 2023, BayLibre Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "phy-mtk-io.h" +#include "phy-mtk-mipi-csi-0-5-rx-reg.h" + +#define CSIXB_OFFSET 0x1000 + +struct mtk_mipi_dphy; + +struct mtk_mipi_dphy_port { + struct device *dev; + void __iomem *base; + struct phy *phy; + u32 type; +}; + +static void mtk_phy_csi_cdphy_ana_eq_tune(void __iomem *base) +{ + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI0A_L0_T0AB_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI0A_L0_T0AB_EQ_BW, 1); + mtk_phy_update_field(base + MIPI_RX_ANA1C_CSIXA, + RG_CSI0A_L1_T1AB_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA1C_CSIXA, + RG_CSI0A_L1_T1AB_EQ_BW, 1); + mtk_phy_update_field(base + MIPI_RX_ANA20_CSI0A, + RG_CSI0A_L2_T1BC_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA20_CSI0A, + RG_CSI0A_L2_T1BC_EQ_BW, 1); + + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI0A_L0_T0AB_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI0A_L0_T0AB_EQ_BW, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA1C_CSIXA, + RG_CSI0A_L1_T1AB_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA1C_CSIXA, + RG_CSI0A_L1_T1AB_EQ_BW, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA20_CSI0A, + RG_CSI0A_L2_T1BC_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA20_CSI0A, + RG_CSI0A_L2_T1BC_EQ_BW, 1); +} + +static void mtk_phy_csi_dphy_ana_eq_tune(void __iomem *base) +{ + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L0_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L0_EQ_BW, 1); + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L1_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L1_EQ_BW, 1); + mtk_phy_update_field(base + MIPI_RX_ANA1C_CSIXA, + RG_CSI1A_L2_EQ_IS, 1); + mtk_phy_update_field(base + MIPI_RX_ANA1C_CSIXA, + RG_CSI1A_L2_EQ_BW, 1); + + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L0_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L0_EQ_BW, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L1_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA18_CSIXA, + RG_CSI1A_L1_EQ_BW, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA1C_CSIXA, + RG_CSI1A_L2_EQ_IS, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA1C_CSIXA, + RG_CSI1A_L2_EQ_BW, 1); +} + +static int mtk_mipi_phy_power_on(struct phy *phy) +{ + struct mtk_mipi_dphy_port *port = phy_get_drvdata(phy); + void __iomem *base = port->base; + + /* + * The driver currently supports DPHY and CD-PHY phys, + * but the only mode supported is DPHY, + * so CD-PHY capable phys must be configured in DPHY mode + */ + if (port->type == PHY_TYPE_CDPHY) { + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSI0A_CPHY_EN, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSI0A_CPHY_EN, 0); + } + + /* + * Lane configuration: + * + * Only 4 data + 1 clock is supported for now with the following mapping: + * + * CSIXA_LNR0 --> D2 + * CSIXA_LNR1 --> D0 + * CSIXA_LNR2 --> C + * CSIXB_LNR0 --> D1 + * CSIXB_LNR1 --> D3 + */ + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L0_CKMODE_EN, 0); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L0_CKSEL, 1); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L1_CKMODE_EN, 0); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L1_CKSEL, 1); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L2_CKMODE_EN, 1); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L2_CKSEL, 1); + + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L0_CKMODE_EN, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L0_CKSEL, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L1_CKMODE_EN, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L1_CKSEL, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L2_CKMODE_EN, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_DPHY_L2_CKSEL, 1); + + /* Byte clock invert */ + mtk_phy_update_field(base + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_CDPHY_L0_T0_BYTECK_INVERT, 1); + mtk_phy_update_field(base + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_DPHY_L1_BYTECK_INVERT, 1); + mtk_phy_update_field(base + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_CDPHY_L2_T1_BYTECK_INVERT, 1); + + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_CDPHY_L0_T0_BYTECK_INVERT, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_DPHY_L1_BYTECK_INVERT, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANAA8_CSIXA, + RG_CSIXA_CDPHY_L2_T1_BYTECK_INVERT, 1); + + /* Start ANA EQ tuning */ + if (port->type == PHY_TYPE_CDPHY) + mtk_phy_csi_cdphy_ana_eq_tune(base); + else + mtk_phy_csi_dphy_ana_eq_tune(base); + + /* End ANA EQ tuning */ + mtk_phy_set_bits(base + MIPI_RX_ANA40_CSIXA, 0x90); + + mtk_phy_update_field(base + MIPI_RX_ANA24_CSIXA, + RG_CSIXA_RESERVE, 0x40); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA24_CSIXA, + RG_CSIXA_RESERVE, 0x40); + mtk_phy_update_field(base + MIPI_RX_WRAPPER80_CSIXA, + CSR_CSI_RST_MODE, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_WRAPPER80_CSIXA, + CSR_CSI_RST_MODE, 0); + /* ANA power on */ + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_CORE_EN, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_CORE_EN, 1); + usleep_range(20, 40); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_LPF_EN, 1); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_LPF_EN, 1); + + return 0; +} + +static int mtk_mipi_phy_power_off(struct phy *phy) +{ + struct mtk_mipi_dphy_port *port = phy_get_drvdata(phy); + void __iomem *base = port->base; + + /* Disable MIPI BG. */ + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_CORE_EN, 0); + mtk_phy_update_field(base + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_LPF_EN, 0); + + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_CORE_EN, 0); + mtk_phy_update_field(base + CSIXB_OFFSET + MIPI_RX_ANA00_CSIXA, + RG_CSIXA_BG_LPF_EN, 0); + + return 0; +} + +static const struct phy_ops mtk_dphy_ops = { + .power_on = mtk_mipi_phy_power_on, + .power_off = mtk_mipi_phy_power_off, + .owner = THIS_MODULE, +}; + +static int mtk_mipi_dphy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct phy_provider *phy_provider; + struct mtk_mipi_dphy_port *port; + struct phy *phy; + int ret; + + port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL); + if (!port) + return -ENOMEM; + + dev_set_drvdata(dev, port); + + port->dev = dev; + + port->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(port->base)) + return PTR_ERR(port->base); + + ret = of_property_read_u32(dev->of_node, "mediatek,phy-type", &port->type); + if (ret) { + dev_err(dev, "Failed to read mediatek,phy-type\n"); + return ret; + } + + phy = devm_phy_create(dev, NULL, &mtk_dphy_ops); + if (IS_ERR(phy)) { + dev_err(dev, "Failed to create PHY: %ld\n", PTR_ERR(phy)); + return PTR_ERR(phy); + } + + port->phy = phy; + phy_set_drvdata(phy, port); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) { + dev_err(dev, "Failed to register PHY provider: %ld\n", + PTR_ERR(phy_provider)); + return PTR_ERR(phy_provider); + } + + return 0; +} + +static const struct of_device_id mtk_mipi_dphy_of_match[] = { + { .compatible = "mediatek,mt8365-csi-rx" }, + { /* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, mtk_mipi_dphy_of_match); + +static struct platform_driver mipi_dphy_pdrv = { + .probe = mtk_mipi_dphy_probe, + .driver = { + .name = "mtk-mipi-csi-0-5", + .of_match_table = mtk_mipi_dphy_of_match, + }, +}; +module_platform_driver(mipi_dphy_pdrv); + +MODULE_DESCRIPTION("MediaTek MIPI CSI CD-PHY v0.5 Driver"); +MODULE_AUTHOR("Louis Kuo "); +MODULE_LICENSE("GPL");