From patchwork Tue Nov 26 13:17:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 13886011 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 56204D3B98B for ; Tue, 26 Nov 2024 13:26:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lXa3PF8sz3OO2Szsi/u695inlM9MoDzsn3tOkzccKl0=; b=wvq/SLKiyEEJsAgoKUI7ts8vhf zVELxHp+5MDKJdFzmQ3FYOeijNYThQ0b2Kl06WdHFr1/RZDrmouCBTqm5CPi/pMxh9XcGeXz3Wz8W iZ7Mb0Tf5J4jBYqrIurfqf/UT12RhHZTCRXLOVYiQ1qIIjrkckDHj1s8covUI9HI0udqsXdjuXfXw hyemYrveFm5LAndHmxBWpvKMNbJpcENbjuqqGscI8O+TiAsacDsMR1kqPKF9sRWcCvfUzvFQ79DRD qIO/79ntvpIBMpTxNW8+P6T8xEv8pCwFvoyygeeE7rjSljLBQRg6PYd746XE0ejEZsxxTckZGVHou CK/5Lttg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFvZi-0000000Aixd-3aVQ; Tue, 26 Nov 2024 13:25:54 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tFvRp-0000000AgbK-1RFn; Tue, 26 Nov 2024 13:17:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=lXa3PF8sz3OO2Szsi/u695inlM9MoDzsn3tOkzccKl0=; b=xYxu5kBCxGCt5/5v4Wn++GL8vq YxfK8C2wac9vxam+PekynkvOU1rYMBrbKyuEfx1dEUexWTEiZ/bQy8qJ9ZQZIR23jZIatRck8fHXr TWYiOWvm9cSJCLRpZbsFDZoJWJewspMMBZ94Vw0UeqWyHfT2w7JZD8e7KSxlMQVEJhN+e/jsuD4mH 4cEFkfcZ7Md8kn2O4KW5mMp3GGiN4euzBIKcODdPkLMlYQLSgLzqZKCWPDlQf0+0TSD79c9xMPlfD E/32wD3US7BcKgBo3ZgQOoijji6imCI+SwwRhQRqKpXLb/vfvmwnGQGrnfC4OYLyX1Ho3FUW+ftqv sQjzmkVw==; Received: from i5e86190f.versanet.de ([94.134.25.15] helo=phil..) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tFvRj-0007zi-5Q; Tue, 26 Nov 2024 14:17:39 +0100 From: Heiko Stuebner To: vkoul@kernel.org, kishon@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, quentin.schulz@cherry.de, sebastian.reichel@collabora.com, heiko@sntech.de, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dse@thaumatec.com, Heiko Stuebner Subject: [PATCH v4 1/2] dt-bindings: phy: Add Rockchip MIPI C-/D-PHY schema Date: Tue, 26 Nov 2024 14:17:34 +0100 Message-ID: <20241126131736.465111-2-heiko@sntech.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241126131736.465111-1-heiko@sntech.de> References: <20241126131736.465111-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241126_051745_403691_3E7B5DBC X-CRM114-Status: GOOD ( 14.07 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Heiko Stuebner Add dt-binding schema for the MIPI C-/D-PHY found on Rockchip RK3588 SoCs. Tested-by: Daniel Semkowicz Tested-by: Sebastian Reichel Signed-off-by: Heiko Stuebner Reviewed-by: Sebastian Reichel --- .../phy/rockchip,rk3588-mipi-dcphy.yaml | 87 +++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml diff --git a/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml b/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml new file mode 100644 index 000000000000..c8ff5ba22a86 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/rockchip,rk3588-mipi-dcphy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip MIPI D-/C-PHY with Samsung IP block + +maintainers: + - Guochun Huang + - Heiko Stuebner + +properties: + compatible: + enum: + - rockchip,rk3576-mipi-dcphy + - rockchip,rk3588-mipi-dcphy + + reg: + maxItems: 1 + + "#phy-cells": + const: 1 + description: | + Argument is mode to operate in. Supported modes are: + - PHY_TYPE_DPHY + - PHY_TYPE_CPHY + See include/dt-bindings/phy/phy.h for constants. + + clocks: + maxItems: 2 + + clock-names: + items: + - const: pclk + - const: ref + + resets: + maxItems: 4 + + reset-names: + items: + - const: m_phy + - const: apb + - const: grf + - const: s_phy + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the 'mipi dcphy general register files'. + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - "#phy-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + phy@feda0000 { + compatible = "rockchip,rk3588-mipi-dcphy"; + reg = <0x0 0xfeda0000 0x0 0x10000>; + clocks = <&cru PCLK_MIPI_DCPHY0>, + <&cru CLK_USBDPPHY_MIPIDCPPHY_REF>; + clock-names = "pclk", "ref"; + resets = <&cru SRST_M_MIPI_DCPHY0>, + <&cru SRST_P_MIPI_DCPHY0>, + <&cru SRST_P_MIPI_DCPHY0_GRF>, + <&cru SRST_S_MIPI_DCPHY0>; + reset-names = "m_phy", "apb", "grf", "s_phy"; + rockchip,grf = <&mipidcphy0_grf>; + #phy-cells = <1>; + }; + }; From patchwork Tue Nov 26 13:17:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 13886012 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 2C788D3B98F for ; Tue, 26 Nov 2024 13:27:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type: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; 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bh=aESo5n6NpSK0o610AjR7QQN3+PWIT1f05Fc0KHbfsdw=; b=cWdu7M6/WHwckln3XYswI2y2Sg ReRCnR3noc09nS3kNwV8VOvREN5iDVEFXLgzzCpWO5B9Nd0K6krhD+JwlrYHLay9ARLxNvm35b/5q R4LX596W261lgUqE51kR28XHV5dKbz3MwHBZ1LOaqh3SvUgYex61DJCnV2S7s4bf1NpO93opMYJiR fkhM/tLI4vNuny4frniC2uH5Ga3WVPrXLDsfiyZwdoBJ7JSB6DGJJsjd+HgoMZKYnqJkCmzi0u7GX mr6Psec7tUeqLfwwHzM0ABKBAWBv58NoCGL4w+dPuh2MXXaWYUzZfK/4vSqDuaodSLAkNO0d+YTks nmwYayrA==; Received: from i5e86190f.versanet.de ([94.134.25.15] helo=phil..) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tFvRk-0007zi-Au; Tue, 26 Nov 2024 14:17:40 +0100 From: Heiko Stuebner To: vkoul@kernel.org, kishon@kernel.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, quentin.schulz@cherry.de, sebastian.reichel@collabora.com, heiko@sntech.de, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dse@thaumatec.com, Heiko Stuebner Subject: [PATCH v4 2/2] phy: rockchip: Add Samsung MIPI D-/C-PHY driver Date: Tue, 26 Nov 2024 14:17:35 +0100 Message-ID: <20241126131736.465111-3-heiko@sntech.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241126131736.465111-1-heiko@sntech.de> References: <20241126131736.465111-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241126_051745_840746_24053B97 X-CRM114-Status: GOOD ( 18.67 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Heiko Stuebner Add driver for the MIPI D-/C-PHY block based around a Samsung IP-block that is for example needed to drive a MIPI DSI output on rk3588. Right now only the D-PHY portion is implemented, with the C-PHY part needing separate work. Tested-by: Daniel Semkowicz Tested-by: Sebastian Reichel Signed-off-by: Heiko Stuebner Reviewed-by: Sebastian Reichel --- drivers/phy/rockchip/Kconfig | 12 + drivers/phy/rockchip/Makefile | 1 + .../phy/rockchip/phy-rockchip-samsung-dcphy.c | 1602 +++++++++++++++++ 3 files changed, 1615 insertions(+) create mode 100644 drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig index 2f7a05f21dc5..2bfb42996503 100644 --- a/drivers/phy/rockchip/Kconfig +++ b/drivers/phy/rockchip/Kconfig @@ -83,6 +83,18 @@ config PHY_ROCKCHIP_PCIE help Enable this to support the Rockchip PCIe PHY. +config PHY_ROCKCHIP_SAMSUNG_DCPHY + tristate "Rockchip Samsung MIPI DCPHY driver" + depends on (ARCH_ROCKCHIP || COMPILE_TEST) + select GENERIC_PHY + select GENERIC_PHY_MIPI_DPHY + help + Enable this to support the Rockchip MIPI DCPHY with + Samsung IP block. + + To compile this driver as a module, choose M here: the module + will be called phy-rockchip-samsung-dcphy + config PHY_ROCKCHIP_SAMSUNG_HDPTX tristate "Rockchip Samsung HDMI/eDP Combo PHY driver" depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile index 010a824e32ce..117aaffd037d 100644 --- a/drivers/phy/rockchip/Makefile +++ b/drivers/phy/rockchip/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_PHY_ROCKCHIP_INNO_HDMI) += phy-rockchip-inno-hdmi.o obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2) += phy-rockchip-inno-usb2.o obj-$(CONFIG_PHY_ROCKCHIP_NANENG_COMBO_PHY) += phy-rockchip-naneng-combphy.o obj-$(CONFIG_PHY_ROCKCHIP_PCIE) += phy-rockchip-pcie.o +obj-$(CONFIG_PHY_ROCKCHIP_SAMSUNG_DCPHY) += phy-rockchip-samsung-dcphy.o obj-$(CONFIG_PHY_ROCKCHIP_SAMSUNG_HDPTX) += phy-rockchip-samsung-hdptx.o obj-$(CONFIG_PHY_ROCKCHIP_SNPS_PCIE3) += phy-rockchip-snps-pcie3.o obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c b/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c new file mode 100644 index 000000000000..14af72acdcc9 --- /dev/null +++ b/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c @@ -0,0 +1,1602 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2024 Rockchip Electronics Co.Ltd + * Author: + * Guochun Huang + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define FIELD_PREP_HIWORD(_mask, _val) \ + ( \ + FIELD_PREP((_mask), (_val)) | \ + ((_mask) << 16) \ + ) + +#define BIAS_CON0 0x0000 +#define BIAS_CON1 0x0004 +#define BIAS_CON2 0x0008 +#define BIAS_CON4 0x0010 +#define I_MUX_SEL_MASK GENMASK(6, 5) +#define I_MUX_SEL(x) FIELD_PREP(I_MUX_SEL_MASK, x) +#define I_MUX_SEL_400MV I_MUX_SEL(0) +#define I_MUX_SEL_200MV I_MUX_SEL(1) +#define I_MUX_SEL_530MV I_MUX_SEL(2) + +#define PLL_CON0 0x0100 +#define PLL_EN BIT(12) +#define S_MASK GENMASK(10, 8) +#define S(x) FIELD_PREP(S_MASK, x) +#define P_MASK GENMASK(5, 0) +#define P(x) FIELD_PREP(P_MASK, x) +#define PLL_CON1 0x0104 +#define PLL_CON2 0x0108 +#define M_MASK GENMASK(9, 0) +#define M(x) FIELD_PREP(M_MASK, x) +#define PLL_CON3 0x010c +#define MRR_MASK GENMASK(13, 8) +#define MRR(x) FIELD_PREP(MRR_MASK, x) +#define MFR_MASK GENMASK(7, 0) +#define MFR(x) FIELD_PREP(MFR_MASK, x) +#define PLL_CON4 0x0110 +#define SSCG_EN BIT(11) +#define PLL_CON5 0x0114 +#define RESET_N_SEL BIT(10) +#define PLL_ENABLE_SEL BIT(8) +#define PLL_CON6 0x0118 +#define PLL_CON7 0x011c +#define PLL_LOCK_CNT(x) FIELD_PREP(GENMASK(15, 0), x) +#define PLL_CON8 0x0120 +#define PLL_STB_CNT(x) FIELD_PREP(GENMASK(15, 0), x) +#define PLL_STAT0 0x0140 +#define PLL_LOCK BIT(0) + +#define DPHY_MC_GNR_CON0 0x0300 +#define PHY_READY BIT(1) +#define PHY_ENABLE BIT(0) +#define DPHY_MC_GNR_CON1 0x0304 +#define T_PHY_READY(x) FIELD_PREP(GENMASK(15, 0), x) +#define DPHY_MC_ANA_CON0 0x0308 +#define EDGE_CON(x) FIELD_PREP(GENMASK(14, 12), x) +#define EDGE_CON_DIR(x) FIELD_PREP(BIT(9), x) +#define EDGE_CON_EN BIT(8) +#define RES_UP(x) FIELD_PREP(GENMASK(7, 4), x) +#define RES_DN(x) FIELD_PREP(GENMASK(3, 0), x) +#define DPHY_MC_ANA_CON1 0x030c +#define DPHY_MC_ANA_CON2 0x0310 +#define HS_VREG_AMP_ICON(x) FIELD_PREP(GENMASK(1, 0), x) +#define DPHY_MC_TIME_CON0 0x0330 +#define HSTX_CLK_SEL BIT(12) +#define T_LPX(x) FIELD_PREP(GENMASK(11, 4), x) +#define DPHY_MC_TIME_CON1 0x0334 +#define T_CLK_ZERO(x) FIELD_PREP(GENMASK(15, 8), x) +#define T_CLK_PREPARE(x) FIELD_PREP(GENMASK(7, 0), x) +#define DPHY_MC_TIME_CON2 0x0338 +#define T_HS_EXIT(x) FIELD_PREP(GENMASK(15, 8), x) +#define T_CLK_TRAIL(x) FIELD_PREP(GENMASK(7, 0), x) +#define DPHY_MC_TIME_CON3 0x033c +#define T_CLK_POST(x) FIELD_PREP(GENMASK(7, 0), x) +#define DPHY_MC_TIME_CON4 0x0340 +#define T_ULPS_EXIT(x) FIELD_PREP(GENMASK(9, 0), x) +#define DPHY_MC_DESKEW_CON0 0x0350 +#define SKEW_CAL_RUN_TIME(x) FIELD_PREP(GENMASK(15, 12), x) + +#define SKEW_CAL_INIT_RUN_TIME(x) FIELD_PREP(GENMASK(11, 8), x) +#define SKEW_CAL_INIT_WAIT_TIME(x) FIELD_PREP(GENMASK(7, 4), x) +#define SKEW_CAL_EN BIT(0) + +#define COMBO_MD0_GNR_CON0 0x0400 +#define COMBO_MD0_GNR_CON1 0x0404 +#define COMBO_MD0_ANA_CON0 0x0408 +#define COMBO_MD0_ANA_CON1 0x040C +#define COMBO_MD0_ANA_CON2 0x0410 + +#define COMBO_MD0_TIME_CON0 0x0430 +#define COMBO_MD0_TIME_CON1 0x0434 +#define COMBO_MD0_TIME_CON2 0x0438 +#define COMBO_MD0_TIME_CON3 0x043C +#define COMBO_MD0_TIME_CON4 0x0440 +#define COMBO_MD0_DATA_CON0 0x0444 + +#define COMBO_MD1_GNR_CON0 0x0500 +#define COMBO_MD1_GNR_CON1 0x0504 +#define COMBO_MD1_ANA_CON0 0x0508 +#define COMBO_MD1_ANA_CON1 0x050c +#define COMBO_MD1_ANA_CON2 0x0510 +#define COMBO_MD1_TIME_CON0 0x0530 +#define COMBO_MD1_TIME_CON1 0x0534 +#define COMBO_MD1_TIME_CON2 0x0538 +#define COMBO_MD1_TIME_CON3 0x053C +#define COMBO_MD1_TIME_CON4 0x0540 +#define COMBO_MD1_DATA_CON0 0x0544 + +#define COMBO_MD2_GNR_CON0 0x0600 +#define COMBO_MD2_GNR_CON1 0x0604 +#define COMBO_MD2_ANA_CON0 0X0608 +#define COMBO_MD2_ANA_CON1 0X060C +#define COMBO_MD2_ANA_CON2 0X0610 +#define COMBO_MD2_TIME_CON0 0x0630 +#define COMBO_MD2_TIME_CON1 0x0634 +#define COMBO_MD2_TIME_CON2 0x0638 +#define COMBO_MD2_TIME_CON3 0x063C +#define COMBO_MD2_TIME_CON4 0x0640 +#define COMBO_MD2_DATA_CON0 0x0644 + +#define DPHY_MD3_GNR_CON0 0x0700 +#define DPHY_MD3_GNR_CON1 0x0704 +#define DPHY_MD3_ANA_CON0 0X0708 +#define DPHY_MD3_ANA_CON1 0X070C +#define DPHY_MD3_ANA_CON2 0X0710 +#define DPHY_MD3_TIME_CON0 0x0730 +#define DPHY_MD3_TIME_CON1 0x0734 +#define DPHY_MD3_TIME_CON2 0x0738 +#define DPHY_MD3_TIME_CON3 0x073C +#define DPHY_MD3_TIME_CON4 0x0740 +#define DPHY_MD3_DATA_CON0 0x0744 + +#define T_LP_EXIT_SKEW(x) FIELD_PREP(GENMASK(3, 2), x) +#define T_LP_ENTRY_SKEW(x) FIELD_PREP(GENMASK(1, 0), x) +#define T_HS_ZERO(x) FIELD_PREP(GENMASK(15, 8), x) +#define T_HS_PREPARE(x) FIELD_PREP(GENMASK(7, 0), x) +#define T_HS_EXIT(x) FIELD_PREP(GENMASK(15, 8), x) +#define T_HS_TRAIL(x) FIELD_PREP(GENMASK(7, 0), x) +#define T_TA_GET(x) FIELD_PREP(GENMASK(7, 4), x) +#define T_TA_GO(x) FIELD_PREP(GENMASK(3, 0), x) + +/* MIPI_CDPHY_GRF registers */ +#define MIPI_DCPHY_GRF_CON0 0x0000 +#define S_CPHY_MODE FIELD_PREP_HIWORD(BIT(3), 1) +#define M_CPHY_MODE FIELD_PREP_HIWORD(BIT(0), 1) + +enum hs_drv_res_ohm { + STRENGTH_30_OHM = 0x8, + STRENGTH_31_2_OHM, + STRENGTH_32_5_OHM, + STRENGTH_34_OHM, + STRENGTH_35_5_OHM, + STRENGTH_37_OHM, + STRENGTH_39_OHM, + STRENGTH_41_OHM, + STRENGTH_43_OHM = 0x0, + STRENGTH_46_OHM, + STRENGTH_49_OHM, + STRENGTH_52_OHM, + STRENGTH_56_OHM, + STRENGTH_60_OHM, + STRENGTH_66_OHM, + STRENGTH_73_OHM, +}; + +struct hs_drv_res_cfg { + enum hs_drv_res_ohm clk_hs_drv_up_ohm; + enum hs_drv_res_ohm clk_hs_drv_down_ohm; + enum hs_drv_res_ohm data_hs_drv_up_ohm; + enum hs_drv_res_ohm data_hs_drv_down_ohm; +}; + +struct samsung_mipi_dcphy_plat_data { + const struct hs_drv_res_cfg *dphy_hs_drv_res_cfg; + u32 dphy_tx_max_lane_kbps; +}; + +struct samsung_mipi_dcphy { + struct device *dev; + struct clk *ref_clk; + struct clk *pclk; + struct regmap *regmap; + struct regmap *grf_regmap; + struct reset_control *m_phy_rst; + struct reset_control *s_phy_rst; + struct reset_control *apb_rst; + struct reset_control *grf_apb_rst; + unsigned int lanes; + struct phy *phy; + u8 type; + + const struct samsung_mipi_dcphy_plat_data *pdata; + struct { + unsigned long long rate; + u8 prediv; + u16 fbdiv; + long dsm; + u8 scaler; + + bool ssc_en; + u8 mfr; + u8 mrr; + } pll; +}; + +struct samsung_mipi_dphy_timing { + unsigned int max_lane_mbps; + u8 clk_prepare; + u8 clk_zero; + u8 clk_post; + u8 clk_trail_eot; + u8 hs_prepare; + u8 hs_zero; + u8 hs_trail_eot; + u8 lpx; + u8 hs_exit; + u8 hs_settle; +}; + +static const +struct samsung_mipi_dphy_timing samsung_mipi_dphy_timing_table[] = { + {6500, 32, 117, 31, 28, 30, 56, 27, 24, 44, 37}, + {6490, 32, 116, 31, 28, 30, 56, 27, 24, 44, 37}, + {6480, 32, 116, 31, 28, 30, 56, 27, 24, 44, 37}, + {6470, 32, 116, 31, 28, 30, 56, 27, 24, 44, 37}, + {6460, 32, 116, 31, 28, 30, 56, 27, 24, 44, 37}, + {6450, 32, 115, 31, 28, 30, 56, 27, 24, 44, 37}, + {6440, 32, 115, 31, 28, 30, 56, 27, 24, 44, 37}, + {6430, 31, 116, 31, 28, 30, 55, 27, 24, 44, 37}, + {6420, 31, 116, 31, 28, 30, 55, 27, 24, 44, 37}, + {6410, 31, 116, 31, 27, 30, 55, 27, 24, 44, 37}, + {6400, 31, 115, 30, 27, 30, 55, 27, 23, 43, 36}, + {6390, 31, 115, 30, 27, 30, 55, 27, 23, 43, 36}, + {6380, 31, 115, 30, 27, 30, 55, 27, 23, 43, 36}, + {6370, 31, 115, 30, 27, 30, 55, 26, 23, 43, 36}, + {6360, 31, 114, 30, 27, 30, 54, 26, 23, 43, 36}, + {6350, 31, 114, 30, 27, 30, 54, 26, 23, 43, 36}, + {6340, 31, 114, 30, 27, 30, 54, 26, 23, 43, 36}, + {6330, 31, 114, 30, 27, 30, 54, 26, 23, 43, 36}, + {6320, 31, 113, 30, 27, 30, 54, 26, 23, 43, 36}, + {6310, 31, 113, 30, 27, 30, 54, 26, 23, 43, 36}, + {6300, 31, 113, 30, 27, 30, 54, 26, 23, 43, 36}, + {6290, 31, 113, 30, 27, 29, 54, 26, 23, 43, 36}, + {6280, 31, 112, 30, 27, 29, 54, 26, 23, 43, 36}, + {6270, 31, 112, 30, 27, 29, 54, 26, 23, 43, 36}, + {6260, 31, 112, 30, 27, 29, 54, 26, 23, 43, 36}, + {6250, 31, 112, 30, 27, 29, 54, 26, 23, 42, 36}, + {6240, 30, 113, 30, 27, 29, 54, 26, 23, 42, 36}, + {6230, 30, 112, 30, 27, 29, 54, 26, 23, 42, 35}, + {6220, 30, 112, 30, 27, 29, 53, 26, 23, 42, 35}, + {6210, 30, 112, 30, 27, 29, 53, 26, 23, 42, 35}, + {6200, 30, 112, 29, 27, 29, 53, 26, 23, 42, 35}, + {6190, 30, 111, 29, 27, 29, 53, 26, 23, 42, 35}, + {6180, 30, 111, 29, 27, 29, 53, 26, 23, 42, 35}, + {6170, 30, 111, 29, 26, 29, 53, 26, 23, 42, 35}, + {6160, 30, 111, 29, 26, 29, 53, 26, 23, 42, 35}, + {6150, 30, 110, 29, 26, 29, 53, 26, 23, 42, 35}, + {6140, 30, 110, 29, 26, 29, 52, 26, 23, 42, 35}, + {6130, 30, 110, 29, 26, 29, 52, 25, 22, 42, 35}, + {6120, 30, 110, 29, 26, 29, 52, 25, 22, 42, 35}, + {6110, 30, 110, 29, 26, 29, 52, 25, 22, 42, 35}, + {6100, 30, 109, 29, 26, 29, 52, 25, 22, 41, 35}, + {6090, 30, 109, 29, 26, 29, 52, 25, 22, 41, 35}, + {6080, 30, 109, 29, 26, 28, 53, 25, 22, 41, 35}, + {6070, 30, 109, 29, 26, 28, 52, 25, 22, 41, 34}, + {6060, 30, 108, 29, 26, 28, 52, 25, 22, 41, 34}, + {6050, 30, 108, 29, 26, 28, 52, 25, 22, 41, 34}, + {6040, 29, 109, 29, 26, 28, 52, 25, 22, 41, 34}, + {6030, 29, 109, 29, 26, 28, 52, 25, 22, 41, 34}, + {6020, 29, 108, 29, 26, 28, 52, 25, 22, 41, 34}, + {6010, 29, 108, 29, 26, 28, 52, 25, 22, 41, 34}, + {6000, 29, 108, 28, 26, 28, 51, 25, 22, 41, 34}, + {5990, 29, 108, 28, 26, 28, 51, 25, 22, 41, 34}, + {5980, 29, 107, 28, 26, 28, 51, 25, 22, 41, 34}, + {5970, 29, 107, 28, 26, 28, 51, 25, 22, 41, 34}, + {5960, 29, 107, 28, 26, 28, 51, 25, 22, 40, 34}, + {5950, 29, 107, 28, 26, 28, 51, 25, 22, 40, 34}, + {5940, 29, 107, 28, 25, 28, 51, 25, 22, 40, 34}, + {5930, 29, 106, 28, 25, 28, 50, 25, 22, 40, 34}, + {5920, 29, 106, 28, 25, 28, 50, 25, 22, 40, 34}, + {5910, 29, 106, 28, 25, 28, 50, 25, 22, 40, 34}, + {5900, 29, 106, 28, 25, 28, 50, 24, 22, 40, 33}, + {5890, 29, 105, 28, 25, 28, 50, 24, 22, 40, 33}, + {5880, 29, 105, 28, 25, 28, 50, 24, 22, 40, 33}, + {5870, 29, 105, 28, 25, 27, 51, 24, 22, 40, 33}, + {5860, 29, 105, 28, 25, 27, 51, 24, 21, 40, 33}, + {5850, 29, 104, 28, 25, 27, 50, 24, 21, 40, 33}, + {5840, 28, 105, 28, 25, 27, 50, 24, 21, 40, 33}, + {5830, 28, 105, 28, 25, 27, 50, 24, 21, 40, 33}, + {5820, 28, 105, 28, 25, 27, 50, 24, 21, 40, 33}, + {5810, 28, 104, 28, 25, 27, 50, 24, 21, 39, 33}, + {5800, 28, 104, 27, 25, 27, 50, 24, 21, 39, 33}, + {5790, 28, 104, 27, 25, 27, 50, 24, 21, 39, 33}, + {5780, 28, 104, 27, 25, 27, 49, 24, 21, 39, 33}, + {5770, 28, 104, 27, 25, 27, 49, 24, 21, 39, 33}, + {5760, 28, 103, 27, 25, 27, 49, 24, 21, 39, 33}, + {5750, 28, 103, 27, 25, 27, 49, 24, 21, 39, 33}, + {5740, 28, 103, 27, 25, 27, 49, 24, 21, 39, 33}, + {5730, 28, 103, 27, 25, 27, 49, 24, 21, 39, 32}, + {5720, 28, 102, 27, 25, 27, 49, 24, 21, 39, 32}, + {5710, 28, 102, 27, 25, 27, 48, 24, 21, 39, 32}, + {5700, 28, 102, 27, 24, 27, 48, 24, 21, 39, 32}, + {5690, 28, 102, 27, 24, 27, 48, 24, 21, 39, 32}, + {5680, 28, 101, 27, 24, 27, 48, 24, 21, 39, 32}, + {5670, 28, 101, 27, 24, 27, 48, 23, 21, 38, 32}, + {5660, 28, 101, 27, 24, 26, 49, 23, 21, 38, 32}, + {5650, 28, 101, 27, 24, 26, 49, 23, 21, 38, 32}, + {5640, 27, 101, 27, 24, 26, 48, 23, 21, 38, 32}, + {5630, 27, 101, 27, 24, 26, 48, 23, 21, 38, 32}, + {5620, 27, 101, 27, 24, 26, 48, 23, 21, 38, 32}, + {5610, 27, 101, 27, 24, 26, 48, 23, 21, 38, 32}, + {5600, 27, 101, 26, 24, 26, 48, 23, 20, 38, 32}, + {5590, 27, 100, 26, 24, 26, 48, 23, 20, 38, 32}, + {5580, 27, 100, 26, 24, 26, 48, 23, 20, 38, 32}, + {5570, 27, 100, 26, 24, 26, 48, 23, 20, 38, 31}, + {5560, 27, 100, 26, 24, 26, 47, 23, 20, 38, 31}, + {5550, 27, 99, 26, 24, 26, 47, 23, 20, 38, 31}, + {5540, 27, 99, 26, 24, 26, 47, 23, 20, 38, 31}, + {5530, 27, 99, 26, 24, 26, 47, 23, 20, 38, 31}, + {5520, 27, 99, 26, 24, 26, 47, 23, 20, 37, 31}, + {5510, 27, 98, 26, 24, 26, 47, 23, 20, 37, 31}, + {5500, 27, 98, 26, 24, 26, 47, 23, 20, 37, 31}, + {5490, 27, 98, 26, 24, 26, 46, 23, 20, 37, 31}, + {5480, 27, 98, 26, 24, 26, 46, 23, 20, 37, 31}, + {5470, 27, 97, 26, 23, 26, 46, 23, 20, 37, 31}, + {5460, 27, 97, 26, 23, 26, 46, 23, 20, 37, 31}, + {5450, 27, 97, 26, 23, 25, 47, 23, 20, 37, 31}, + {5440, 26, 98, 26, 23, 25, 47, 23, 20, 37, 31}, + {5430, 26, 98, 26, 23, 25, 47, 22, 20, 37, 31}, + {5420, 26, 97, 26, 23, 25, 46, 22, 20, 37, 31}, + {5410, 26, 97, 26, 23, 25, 46, 22, 20, 37, 31}, + {5400, 26, 97, 25, 23, 25, 46, 22, 20, 37, 30}, + {5390, 26, 97, 25, 23, 25, 46, 22, 20, 37, 30}, + {5380, 26, 96, 25, 23, 25, 46, 22, 20, 36, 30}, + {5370, 26, 96, 25, 23, 25, 46, 22, 20, 36, 30}, + {5360, 26, 96, 25, 23, 25, 46, 22, 20, 36, 30}, + {5350, 26, 96, 25, 23, 25, 46, 22, 20, 36, 30}, + {5340, 26, 95, 25, 23, 25, 45, 22, 20, 36, 30}, + {5330, 26, 95, 25, 23, 25, 45, 22, 19, 36, 30}, + {5320, 26, 95, 25, 23, 25, 45, 22, 19, 36, 30}, + {5310, 26, 95, 25, 23, 25, 45, 22, 19, 36, 30}, + {5300, 26, 95, 25, 23, 25, 45, 22, 19, 36, 30}, + {5290, 26, 94, 25, 23, 25, 45, 22, 19, 36, 30}, + {5280, 26, 94, 25, 23, 25, 45, 22, 19, 36, 30}, + {5270, 26, 94, 25, 23, 25, 44, 22, 19, 36, 30}, + {5260, 26, 94, 25, 23, 25, 44, 22, 19, 36, 30}, + {5250, 25, 94, 25, 23, 24, 45, 22, 19, 36, 30}, + {5240, 25, 94, 25, 23, 24, 45, 22, 19, 36, 29}, + {5230, 25, 94, 25, 22, 24, 45, 22, 19, 35, 29}, + {5220, 25, 94, 25, 22, 24, 45, 22, 19, 35, 29}, + {5210, 25, 93, 25, 22, 24, 45, 22, 19, 35, 29}, + {5200, 25, 93, 24, 22, 24, 44, 21, 19, 35, 29}, + {5190, 25, 93, 24, 22, 24, 44, 21, 19, 35, 29}, + {5180, 25, 93, 24, 22, 24, 44, 21, 19, 35, 29}, + {5170, 25, 92, 24, 22, 24, 44, 21, 19, 35, 29}, + {5160, 25, 92, 24, 22, 24, 44, 21, 19, 35, 29}, + {5150, 25, 92, 24, 22, 24, 44, 21, 19, 35, 29}, + {5140, 25, 92, 24, 22, 24, 44, 21, 19, 35, 29}, + {5130, 25, 92, 24, 22, 24, 43, 21, 19, 35, 29}, + {5120, 25, 91, 24, 22, 24, 43, 21, 19, 35, 29}, + {5110, 25, 91, 24, 22, 24, 43, 21, 19, 35, 29}, + {5100, 25, 91, 24, 22, 24, 43, 21, 19, 35, 29}, + {5090, 25, 91, 24, 22, 24, 43, 21, 19, 34, 29}, + {5080, 25, 90, 24, 22, 24, 43, 21, 19, 34, 29}, + {5070, 25, 90, 24, 22, 24, 43, 21, 19, 34, 28}, + {5060, 25, 90, 24, 22, 24, 43, 21, 18, 34, 28}, + {5050, 24, 91, 24, 22, 24, 42, 21, 18, 34, 28}, + {5040, 24, 90, 24, 22, 23, 43, 21, 18, 34, 28}, + {5030, 24, 90, 24, 22, 23, 43, 21, 18, 34, 28}, + {5020, 24, 90, 24, 22, 23, 43, 21, 18, 34, 28}, + {5010, 24, 90, 24, 22, 23, 43, 21, 18, 34, 28}, + {5000, 24, 89, 23, 21, 23, 43, 21, 18, 34, 28}, + {4990, 24, 89, 23, 21, 23, 43, 21, 18, 34, 28}, + {4980, 24, 89, 23, 21, 23, 42, 21, 18, 34, 28}, + {4970, 24, 89, 23, 21, 23, 42, 21, 18, 34, 28}, + {4960, 24, 89, 23, 21, 23, 42, 20, 18, 34, 28}, + {4950, 24, 88, 23, 21, 23, 42, 20, 18, 34, 28}, + {4940, 24, 88, 23, 21, 23, 42, 20, 18, 33, 28}, + {4930, 24, 88, 23, 21, 23, 42, 20, 18, 33, 28}, + {4920, 24, 88, 23, 21, 23, 42, 20, 18, 33, 28}, + {4910, 24, 87, 23, 21, 23, 41, 20, 18, 33, 28}, + {4900, 24, 87, 23, 21, 23, 41, 20, 18, 33, 27}, + {4890, 24, 87, 23, 21, 23, 41, 20, 18, 33, 27}, + {4880, 24, 87, 23, 21, 23, 41, 20, 18, 33, 27}, + {4870, 24, 86, 23, 21, 23, 41, 20, 18, 33, 27}, + {4860, 24, 86, 23, 21, 23, 41, 20, 18, 33, 27}, + {4850, 23, 87, 23, 21, 23, 41, 20, 18, 33, 27}, + {4840, 23, 87, 23, 21, 23, 40, 20, 18, 33, 27}, + {4830, 23, 86, 23, 21, 22, 41, 20, 18, 33, 27}, + {4820, 23, 86, 23, 21, 22, 41, 20, 18, 33, 27}, + {4810, 23, 86, 23, 21, 22, 41, 20, 18, 33, 27}, + {4800, 23, 86, 22, 21, 22, 41, 20, 17, 32, 27}, + {4790, 23, 86, 22, 21, 22, 41, 20, 17, 32, 27}, + {4780, 23, 85, 22, 21, 22, 41, 20, 17, 32, 27}, + {4770, 23, 85, 22, 21, 22, 41, 20, 17, 32, 27}, + {4760, 23, 85, 22, 20, 22, 40, 20, 17, 32, 27}, + {4750, 23, 85, 22, 20, 22, 40, 20, 17, 32, 27}, + {4740, 23, 84, 22, 20, 22, 40, 20, 17, 32, 26}, + {4730, 23, 84, 22, 20, 22, 40, 19, 17, 32, 26}, + {4720, 23, 84, 22, 20, 22, 40, 19, 17, 32, 26}, + {4710, 23, 84, 22, 20, 22, 40, 19, 17, 32, 26}, + {4700, 23, 83, 22, 20, 22, 40, 19, 17, 32, 26}, + {4690, 23, 83, 22, 20, 22, 39, 19, 17, 32, 26}, + {4680, 23, 83, 22, 20, 22, 39, 19, 17, 32, 26}, + {4670, 23, 83, 22, 20, 22, 39, 19, 17, 32, 26}, + {4660, 23, 82, 22, 20, 22, 39, 19, 17, 32, 26}, + {4650, 22, 83, 22, 20, 22, 39, 19, 17, 31, 26}, + {4640, 22, 83, 22, 20, 22, 39, 19, 17, 31, 26}, + {4630, 22, 83, 22, 20, 22, 39, 19, 17, 31, 26}, + {4620, 22, 83, 22, 20, 21, 39, 19, 17, 31, 26}, + {4610, 22, 82, 22, 20, 21, 39, 19, 17, 31, 26}, + {4600, 22, 82, 21, 20, 21, 39, 19, 17, 31, 26}, + {4590, 22, 82, 21, 20, 21, 39, 19, 17, 31, 26}, + {4580, 22, 82, 21, 20, 21, 39, 19, 17, 31, 26}, + {4570, 22, 81, 21, 20, 21, 39, 19, 17, 31, 25}, + {4560, 22, 81, 21, 20, 21, 39, 19, 17, 31, 25}, + {4550, 22, 81, 21, 20, 21, 38, 19, 17, 31, 25}, + {4540, 22, 81, 21, 20, 21, 38, 19, 17, 31, 25}, + {4530, 22, 80, 21, 19, 21, 38, 19, 16, 31, 25}, + {4520, 22, 80, 21, 19, 21, 38, 19, 16, 31, 25}, + {4510, 22, 80, 21, 19, 21, 38, 19, 16, 31, 25}, + {4500, 22, 80, 21, 19, 21, 38, 19, 16, 30, 25}, + {4490, 22, 80, 21, 19, 21, 38, 18, 16, 30, 25}, + {4480, 22, 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+ {1370, 54, 22, 5, 72, 54, 9, 66, 41, 8, 67}, + {1360, 54, 22, 5, 72, 54, 9, 65, 40, 8, 67}, + {1350, 54, 22, 5, 72, 53, 9, 65, 40, 8, 66}, + {1340, 53, 22, 5, 71, 53, 9, 65, 40, 8, 66}, + {1330, 53, 22, 5, 71, 53, 9, 64, 39, 8, 65}, + {1320, 52, 22, 5, 71, 53, 8, 64, 40, 8, 65}, + {1310, 52, 21, 5, 70, 53, 8, 64, 40, 8, 64}, + {1300, 51, 21, 5, 70, 51, 8, 63, 38, 8, 64}, + {1290, 51, 21, 5, 70, 51, 8, 63, 38, 7, 64}, + {1280, 51, 21, 5, 69, 51, 8, 63, 38, 7, 63}, + {1270, 50, 21, 5, 69, 50, 8, 62, 38, 7, 63}, + {1260, 50, 20, 5, 69, 50, 8, 62, 37, 7, 62}, + {1250, 49, 20, 5, 68, 49, 8, 62, 37, 7, 62}, + {1240, 49, 20, 5, 68, 49, 8, 61, 37, 7, 61}, + {1230, 49, 20, 5, 68, 49, 8, 61, 36, 7, 61}, + {1220, 48, 20, 5, 67, 48, 8, 61, 36, 7, 60}, + {1210, 48, 19, 5, 67, 48, 7, 60, 36, 7, 60}, + {1200, 49, 19, 4, 67, 49, 7, 60, 36, 7, 59}, + {1190, 48, 19, 4, 66, 48, 7, 60, 36, 7, 59}, + {1180, 48, 19, 4, 66, 48, 7, 59, 36, 7, 58}, + {1170, 46, 19, 4, 66, 46, 7, 59, 35, 7, 58}, + {1160, 46, 18, 4, 65, 46, 7, 59, 34, 7, 57}, + {1150, 45, 18, 4, 65, 46, 7, 58, 34, 7, 57}, + {1140, 45, 18, 4, 65, 45, 7, 58, 34, 6, 56}, + {1130, 45, 18, 4, 64, 45, 7, 58, 33, 6, 56}, + {1120, 44, 18, 4, 64, 44, 7, 57, 33, 6, 55}, + {1110, 44, 18, 4, 64, 44, 7, 57, 33, 6, 55}, + {1100, 43, 17, 4, 63, 44, 6, 57, 32, 6, 54}, + {1090, 43, 17, 4, 63, 44, 6, 56, 33, 6, 54}, + {1080, 43, 17, 4, 63, 44, 6, 56, 33, 6, 53}, + {1070, 42, 17, 4, 62, 44, 6, 56, 33, 6, 53}, + {1060, 42, 17, 4, 62, 42, 6, 55, 31, 6, 52}, + {1050, 41, 17, 4, 62, 42, 6, 55, 31, 6, 52}, + {1040, 41, 16, 4, 61, 41, 6, 54, 31, 6, 52}, + {1030, 41, 16, 4, 61, 41, 6, 54, 30, 6, 51}, + {1020, 40, 16, 4, 61, 41, 6, 54, 30, 6, 51}, + {1010, 40, 16, 4, 60, 40, 6, 53, 30, 6, 50}, + {1000, 39, 16, 3, 60, 40, 6, 53, 29, 5, 50}, + { 990, 39, 15, 3, 60, 39, 6, 53, 29, 5, 49}, + { 980, 39, 15, 3, 59, 39, 5, 52, 29, 5, 49}, + { 970, 38, 15, 3, 59, 39, 5, 52, 29, 5, 48}, + { 960, 38, 15, 3, 59, 39, 5, 52, 29, 5, 48}, + { 950, 37, 15, 3, 58, 39, 5, 51, 29, 5, 47}, + { 940, 37, 14, 3, 58, 39, 5, 51, 29, 5, 47}, + { 930, 37, 14, 3, 57, 37, 5, 51, 27, 5, 46}, + { 920, 36, 14, 3, 57, 37, 5, 50, 27, 5, 46}, + { 910, 36, 14, 3, 57, 36, 5, 50, 27, 5, 45}, + { 900, 35, 14, 3, 56, 36, 5, 50, 26, 5, 45}, + { 890, 35, 14, 3, 56, 36, 5, 49, 26, 5, 44}, + { 880, 35, 13, 3, 56, 35, 5, 49, 26, 5, 44}, + { 870, 34, 13, 3, 55, 35, 4, 49, 26, 5, 43}, + { 860, 34, 13, 3, 55, 35, 4, 48, 25, 5, 43}, + { 850, 33, 13, 3, 55, 35, 4, 48, 26, 4, 42}, + { 840, 33, 13, 3, 54, 35, 4, 48, 26, 4, 42}, + { 830, 33, 12, 3, 54, 33, 4, 47, 24, 4, 41}, + { 820, 32, 12, 3, 54, 33, 4, 47, 24, 4, 41}, + { 810, 32, 12, 3, 53, 33, 4, 47, 24, 4, 40}, + { 800, 31, 12, 2, 53, 32, 4, 46, 23, 4, 40}, + { 790, 31, 12, 2, 53, 32, 4, 46, 23, 4, 39}, + { 780, 30, 12, 2, 52, 31, 4, 46, 23, 4, 39}, + { 770, 30, 11, 2, 52, 31, 4, 45, 23, 4, 39}, + { 760, 30, 11, 2, 52, 31, 3, 45, 22, 4, 38}, + { 750, 29, 11, 2, 51, 30, 3, 45, 22, 4, 38}, + { 740, 29, 11, 2, 51, 30, 3, 44, 22, 4, 37}, + { 730, 28, 11, 2, 51, 31, 3, 44, 22, 4, 37}, + { 720, 28, 10, 2, 50, 30, 3, 44, 22, 4, 36}, + { 710, 28, 10, 2, 50, 30, 3, 43, 22, 4, 36}, + { 700, 27, 10, 2, 50, 28, 3, 43, 20, 3, 35}, + { 690, 27, 10, 2, 49, 28, 3, 43, 20, 3, 35}, + { 680, 26, 10, 2, 49, 28, 3, 42, 20, 3, 34}, + { 670, 26, 10, 2, 49, 27, 3, 42, 20, 3, 34}, + { 660, 26, 9, 2, 48, 27, 3, 42, 19, 3, 33}, + { 650, 25, 9, 2, 48, 26, 3, 41, 19, 3, 33}, + { 640, 25, 9, 2, 48, 26, 2, 41, 19, 3, 32}, + { 630, 24, 9, 2, 47, 26, 2, 40, 18, 3, 32}, + { 620, 24, 9, 2, 47, 26, 2, 40, 19, 3, 31}, + { 610, 24, 8, 2, 47, 26, 2, 40, 19, 3, 31}, + { 600, 23, 8, 1, 46, 26, 2, 39, 18, 3, 30}, + { 590, 23, 8, 1, 46, 24, 2, 39, 17, 3, 30}, + { 580, 22, 8, 1, 46, 24, 2, 39, 17, 3, 29}, + { 570, 22, 8, 1, 45, 23, 2, 38, 17, 3, 29}, + { 560, 22, 7, 1, 45, 23, 2, 38, 16, 2, 28}, + { 550, 21, 7, 1, 45, 23, 2, 38, 16, 2, 28}, + { 540, 21, 7, 1, 44, 22, 2, 37, 16, 2, 27}, + { 530, 20, 7, 1, 44, 22, 1, 37, 15, 2, 27}, + { 520, 20, 7, 1, 43, 21, 1, 37, 15, 2, 27}, + { 510, 20, 6, 1, 43, 21, 1, 36, 15, 2, 26}, + { 500, 19, 6, 1, 43, 22, 1, 36, 15, 2, 26}, + { 490, 19, 6, 1, 42, 21, 1, 36, 15, 2, 25}, + { 480, 18, 6, 1, 42, 21, 1, 35, 15, 2, 25}, + { 470, 18, 6, 1, 42, 21, 1, 35, 15, 2, 24}, + { 460, 18, 6, 1, 41, 19, 1, 35, 13, 2, 24}, + { 450, 17, 5, 1, 41, 19, 1, 34, 13, 2, 23}, + { 440, 17, 5, 1, 41, 18, 1, 34, 13, 2, 23}, + { 430, 16, 5, 1, 40, 18, 0, 34, 12, 2, 22}, + { 420, 16, 5, 1, 40, 18, 0, 33, 12, 2, 22}, + { 410, 16, 5, 1, 40, 17, 0, 33, 12, 1, 21}, + { 400, 15, 5, 0, 39, 17, 0, 33, 11, 1, 21}, + { 390, 15, 4, 0, 39, 17, 0, 32, 12, 1, 20}, + { 380, 14, 4, 0, 39, 17, 0, 32, 12, 1, 20}, + { 370, 14, 4, 0, 38, 17, 0, 32, 12, 1, 19}, + { 360, 14, 4, 0, 38, 15, 0, 31, 10, 1, 19}, + { 350, 13, 4, 0, 38, 15, 0, 31, 10, 1, 18}, + { 340, 13, 3, 0, 37, 15, 0, 31, 10, 1, 18}, + { 330, 12, 3, 0, 37, 14, 0, 30, 9, 1, 17}, + { 320, 12, 3, 0, 37, 14, 0, 30, 9, 1, 17}, + { 310, 12, 3, 0, 36, 13, 0, 30, 9, 1, 16}, + { 300, 11, 3, 0, 36, 13, 0, 29, 8, 1, 16}, + { 290, 11, 2, 0, 36, 13, 0, 29, 8, 1, 15}, + { 280, 10, 2, 0, 35, 12, 0, 29, 8, 1, 15}, + { 270, 10, 2, 0, 35, 12, 0, 28, 8, 0, 14}, + { 260, 9, 2, 0, 35, 12, 0, 28, 8, 0, 14}, + { 250, 9, 2, 0, 34, 12, 0, 28, 8, 0, 14}, + { 240, 9, 2, 0, 34, 12, 0, 27, 8, 0, 13}, + { 230, 8, 1, 0, 34, 10, 0, 27, 6, 0, 13}, + { 220, 8, 1, 0, 33, 10, 0, 27, 6, 0, 12}, + { 210, 7, 1, 0, 33, 10, 0, 26, 6, 0, 12}, + { 200, 7, 1, 0, 33, 9, 0, 26, 5, 0, 11}, + { 190, 7, 1, 0, 32, 9, 0, 25, 5, 0, 11}, + { 180, 6, 1, 0, 32, 8, 0, 25, 5, 0, 10}, + { 170, 6, 0, 0, 32, 8, 0, 25, 5, 0, 10}, + { 160, 5, 0, 0, 31, 8, 0, 24, 4, 0, 9}, + { 150, 5, 0, 0, 31, 8, 0, 24, 5, 0, 9}, + { 140, 5, 0, 0, 31, 8, 0, 24, 5, 0, 8}, + { 130, 4, 0, 0, 30, 6, 0, 23, 3, 0, 8}, + { 120, 4, 0, 0, 30, 6, 0, 23, 3, 0, 7}, + { 110, 3, 0, 0, 30, 6, 0, 23, 3, 0, 7}, + { 100, 3, 0, 0, 29, 5, 0, 22, 2, 0, 6}, + { 90, 3, 0, 0, 29, 5, 0, 22, 2, 0, 6}, + { 80, 2, 0, 0, 28, 5, 0, 22, 2, 0, 5}, +}; + +static void samsung_mipi_dcphy_bias_block_enable(struct samsung_mipi_dcphy *samsung) +{ + u32 bias_con2 = 0x3223; + + regmap_write(samsung->regmap, BIAS_CON0, 0x0010); + regmap_write(samsung->regmap, BIAS_CON1, 0x0110); + regmap_write(samsung->regmap, BIAS_CON2, bias_con2); + + /* default output voltage select: + * dphy: 400mv + * cphy: 530mv + */ + regmap_update_bits(samsung->regmap, BIAS_CON4, + I_MUX_SEL_MASK, I_MUX_SEL_400MV); +} + +static void samsung_mipi_dphy_lane_enable(struct samsung_mipi_dcphy *samsung) +{ + regmap_write(samsung->regmap, DPHY_MC_GNR_CON1, T_PHY_READY(0x2000)); + regmap_update_bits(samsung->regmap, DPHY_MC_GNR_CON0, + PHY_ENABLE, PHY_ENABLE); + + switch (samsung->lanes) { + case 4: + regmap_write(samsung->regmap, DPHY_MD3_GNR_CON1, + T_PHY_READY(0x2000)); + regmap_update_bits(samsung->regmap, DPHY_MD3_GNR_CON0, + PHY_ENABLE, PHY_ENABLE); + fallthrough; + case 3: + regmap_write(samsung->regmap, COMBO_MD2_GNR_CON1, + T_PHY_READY(0x2000)); + regmap_update_bits(samsung->regmap, COMBO_MD2_GNR_CON0, + PHY_ENABLE, PHY_ENABLE); + fallthrough; + case 2: + regmap_write(samsung->regmap, COMBO_MD1_GNR_CON1, + T_PHY_READY(0x2000)); + regmap_update_bits(samsung->regmap, COMBO_MD1_GNR_CON0, + PHY_ENABLE, PHY_ENABLE); + fallthrough; + case 1: + default: + regmap_write(samsung->regmap, COMBO_MD0_GNR_CON1, + T_PHY_READY(0x2000)); + regmap_update_bits(samsung->regmap, COMBO_MD0_GNR_CON0, + PHY_ENABLE, PHY_ENABLE); + break; + } +} + +static void samsung_mipi_dphy_lane_disable(struct samsung_mipi_dcphy *samsung) +{ + regmap_update_bits(samsung->regmap, DPHY_MC_GNR_CON0, PHY_ENABLE, 0); + regmap_update_bits(samsung->regmap, COMBO_MD0_GNR_CON0, PHY_ENABLE, 0); + regmap_update_bits(samsung->regmap, COMBO_MD1_GNR_CON0, PHY_ENABLE, 0); + regmap_update_bits(samsung->regmap, COMBO_MD2_GNR_CON0, PHY_ENABLE, 0); + regmap_update_bits(samsung->regmap, DPHY_MD3_GNR_CON0, PHY_ENABLE, 0); +} + +static void samsung_mipi_dcphy_pll_configure(struct samsung_mipi_dcphy *samsung) +{ + regmap_update_bits(samsung->regmap, PLL_CON0, S_MASK | P_MASK, + S(samsung->pll.scaler) | P(samsung->pll.prediv)); + + if (samsung->pll.dsm < 0) { + u16 dsm_tmp; + + /* Using opposite number subtraction to find complement */ + dsm_tmp = abs(samsung->pll.dsm); + dsm_tmp = dsm_tmp - 1; + dsm_tmp ^= 0xffff; + regmap_write(samsung->regmap, PLL_CON1, dsm_tmp); + } else { + regmap_write(samsung->regmap, PLL_CON1, samsung->pll.dsm); + } + + regmap_update_bits(samsung->regmap, PLL_CON2, + M_MASK, M(samsung->pll.fbdiv)); + + if (samsung->pll.ssc_en) { + regmap_write(samsung->regmap, PLL_CON3, + MRR(samsung->pll.mrr) | MFR(samsung->pll.mfr)); + regmap_update_bits(samsung->regmap, PLL_CON4, SSCG_EN, SSCG_EN); + } + + regmap_write(samsung->regmap, PLL_CON5, RESET_N_SEL | PLL_ENABLE_SEL); + regmap_write(samsung->regmap, PLL_CON7, PLL_LOCK_CNT(0xf000)); + regmap_write(samsung->regmap, PLL_CON8, PLL_STB_CNT(0xf000)); +} + +static int samsung_mipi_dcphy_pll_enable(struct samsung_mipi_dcphy *samsung) +{ + u32 sts; + int ret; + + regmap_update_bits(samsung->regmap, PLL_CON0, PLL_EN, PLL_EN); + + ret = regmap_read_poll_timeout(samsung->regmap, PLL_STAT0, + sts, (sts & PLL_LOCK), 1000, 20000); + if (ret < 0) + dev_err(samsung->dev, "DC-PHY pll failed to lock\n"); + + return ret; +} + +static void samsung_mipi_dcphy_pll_disable(struct samsung_mipi_dcphy *samsung) +{ + regmap_update_bits(samsung->regmap, PLL_CON0, PLL_EN, 0); +} + +static const struct samsung_mipi_dphy_timing * +samsung_mipi_dphy_get_timing(struct samsung_mipi_dcphy *samsung) +{ + const struct samsung_mipi_dphy_timing *timings; + unsigned int num_timings; + unsigned int lane_mbps = div64_ul(samsung->pll.rate, USEC_PER_SEC); + unsigned int i; + + timings = samsung_mipi_dphy_timing_table; + num_timings = ARRAY_SIZE(samsung_mipi_dphy_timing_table); + + for (i = num_timings; i > 1; i--) + if (lane_mbps <= timings[i - 1].max_lane_mbps) + break; + + return &timings[i - 1]; +} + +static unsigned long +samsung_mipi_dcphy_pll_round_rate(struct samsung_mipi_dcphy *samsung, + unsigned long prate, unsigned long rate, + u8 *prediv, u16 *fbdiv, int *dsm, u8 *scaler) +{ + u32 max_fout = samsung->pdata->dphy_tx_max_lane_kbps; + u64 best_freq = 0; + u64 fin, fvco, fout; + u8 min_prediv, max_prediv; + u8 _prediv, best_prediv = 1; + u16 _fbdiv, best_fbdiv = 1; + u8 _scaler, best_scaler = 0; + u32 min_delta = UINT_MAX; + long _dsm, best_dsm = 0; + + if (!prate) { + dev_err(samsung->dev, "parent rate of PLL can not be zero\n"); + return 0; + } + + /* + * The PLL output frequency can be calculated using a simple formula: + * Fvco = ((m+k/65536) x 2 x Fin) / p + * Fout = ((m+k/65536) x 2 x Fin) / (p x 2^s) + */ + fin = div64_ul(prate, MSEC_PER_SEC); + + while (!best_freq) { + fout = div64_ul(rate, MSEC_PER_SEC); + if (fout > max_fout) + fout = max_fout; + + /* 0 ≤ S[2:0] ≤ 6 */ + for (_scaler = 0; _scaler < 7; _scaler++) { + fvco = fout << _scaler; + + /* + * 2600MHz ≤ FVCO ≤ 6600MHz + */ + if (fvco < 2600 * MSEC_PER_SEC || fvco > 6600 * MSEC_PER_SEC) + continue; + + /* 6MHz ≤ Fref(Fin / p) ≤ 30MHz */ + min_prediv = DIV_ROUND_UP_ULL(fin, 30 * MSEC_PER_SEC); + max_prediv = DIV_ROUND_CLOSEST_ULL(fin, 6 * MSEC_PER_SEC); + + for (_prediv = min_prediv; _prediv <= max_prediv; _prediv++) { + u64 delta, tmp; + + _fbdiv = DIV_ROUND_CLOSEST_ULL(fvco * _prediv, 2 * fin); + + /* 64 ≤ M[9:0] ≤ 1023 */ + if (_fbdiv < 64 || _fbdiv > 1023) + continue; + + /* -32767 ≤ K[15:0] ≤ 32767 */ + _dsm = ((_prediv * fvco) - (2 * _fbdiv * fin)); + _dsm = DIV_ROUND_UP_ULL(_dsm << 15, fin); + if (abs(_dsm) > 32767) + continue; + + tmp = DIV_ROUND_CLOSEST_ULL((_fbdiv * fin * 2 * 1000), _prediv); + tmp += DIV_ROUND_CLOSEST_ULL((_dsm * fin * 1000), _prediv << 15); + + delta = abs(fvco * MSEC_PER_SEC - tmp); + if (delta < min_delta) { + best_prediv = _prediv; + best_fbdiv = _fbdiv; + best_dsm = _dsm; + best_scaler = _scaler; + min_delta = delta; + best_freq = DIV_ROUND_CLOSEST_ULL(tmp, 1000) * MSEC_PER_SEC; + } + } + } + + rate += 100 * MSEC_PER_SEC; + } + + *prediv = best_prediv; + *fbdiv = best_fbdiv; + *dsm = (int)best_dsm & 0xffff; + *scaler = best_scaler; + dev_dbg(samsung->dev, "p: %d, m: %d, dsm:%ld, scaler: %d\n", + best_prediv, best_fbdiv, best_dsm, best_scaler); + + return best_freq >> best_scaler; +} + +static void +samsung_mipi_dphy_clk_lane_timing_init(struct samsung_mipi_dcphy *samsung) +{ + const struct samsung_mipi_dphy_timing *timing; + unsigned int lane_hs_rate = div64_ul(samsung->pll.rate, USEC_PER_SEC); + u32 val, res_up, res_down; + + timing = samsung_mipi_dphy_get_timing(samsung); + regmap_write(samsung->regmap, DPHY_MC_GNR_CON0, 0xf000); + + /* + * The Drive-Strength / Voltage-Amplitude is adjusted by setting + * the Driver-Up Resistor and Driver-Down Resistor. + */ + res_up = samsung->pdata->dphy_hs_drv_res_cfg->clk_hs_drv_up_ohm; + res_down = samsung->pdata->dphy_hs_drv_res_cfg->clk_hs_drv_down_ohm; + val = EDGE_CON(7) | EDGE_CON_DIR(0) | EDGE_CON_EN | + RES_UP(res_up) | RES_DN(res_down); + regmap_write(samsung->regmap, DPHY_MC_ANA_CON0, val); + + if (lane_hs_rate >= 4500) + regmap_write(samsung->regmap, DPHY_MC_ANA_CON1, 0x0001); + + val = 0; + /* + * Divide-by-2 Clock from Serial Clock. Use this when data rate is under + * 1500Mbps, otherwise divide-by-16 Clock from Serial Clock + */ + if (lane_hs_rate < 1500) + val = HSTX_CLK_SEL; + + val |= T_LPX(timing->lpx); + /* T_LP_EXIT_SKEW/T_LP_ENTRY_SKEW unconfig */ + regmap_write(samsung->regmap, DPHY_MC_TIME_CON0, val); + + val = T_CLK_ZERO(timing->clk_zero) | T_CLK_PREPARE(timing->clk_prepare); + regmap_write(samsung->regmap, DPHY_MC_TIME_CON1, val); + + val = T_HS_EXIT(timing->hs_exit) | T_CLK_TRAIL(timing->clk_trail_eot); + regmap_write(samsung->regmap, DPHY_MC_TIME_CON2, val); + + val = T_CLK_POST(timing->clk_post); + regmap_write(samsung->regmap, DPHY_MC_TIME_CON3, val); + + /* Escape Clock is 20.00MHz */ + regmap_write(samsung->regmap, DPHY_MC_TIME_CON4, 0x1f4); + + /* + * skew calibration should be off, if the operation data rate is + * under 1.5Gbps or equal to 1.5Gbps. + */ + if (lane_hs_rate > 1500) + regmap_write(samsung->regmap, DPHY_MC_DESKEW_CON0, 0x9cb1); +} + +static void +samsung_mipi_dphy_data_lane_timing_init(struct samsung_mipi_dcphy *samsung) +{ + const struct samsung_mipi_dphy_timing *timing; + unsigned int lane_hs_rate = div64_ul(samsung->pll.rate, USEC_PER_SEC); + u32 val, res_up, res_down; + + timing = samsung_mipi_dphy_get_timing(samsung); + + /* + * The Drive-Strength / Voltage-Amplitude is adjusted by adjusting the + * Driver-Up Resistor and Driver-Down Resistor. + */ + res_up = samsung->pdata->dphy_hs_drv_res_cfg->data_hs_drv_up_ohm; + res_down = samsung->pdata->dphy_hs_drv_res_cfg->data_hs_drv_down_ohm; + val = EDGE_CON(7) | EDGE_CON_DIR(0) | EDGE_CON_EN | + RES_UP(res_up) | RES_DN(res_down); + regmap_write(samsung->regmap, COMBO_MD0_ANA_CON0, val); + regmap_write(samsung->regmap, COMBO_MD1_ANA_CON0, val); + regmap_write(samsung->regmap, COMBO_MD2_ANA_CON0, val); + regmap_write(samsung->regmap, DPHY_MD3_ANA_CON0, val); + + if (lane_hs_rate >= 4500) { + regmap_write(samsung->regmap, COMBO_MD0_ANA_CON1, 0x0001); + regmap_write(samsung->regmap, COMBO_MD1_ANA_CON1, 0x0001); + regmap_write(samsung->regmap, COMBO_MD2_ANA_CON1, 0x0001); + regmap_write(samsung->regmap, DPHY_MD3_ANA_CON1, 0x0001); + } + + val = 0; + /* + * Divide-by-2 Clock from Serial Clock. Use this when data rate is under + * 1500Mbps, otherwise divide-by-16 Clock from Serial Clock + */ + if (lane_hs_rate < 1500) + val = HSTX_CLK_SEL; + + val |= T_LPX(timing->lpx); + /* T_LP_EXIT_SKEW/T_LP_ENTRY_SKEW unconfig */ + regmap_write(samsung->regmap, COMBO_MD0_TIME_CON0, val); + regmap_write(samsung->regmap, COMBO_MD1_TIME_CON0, val); + regmap_write(samsung->regmap, COMBO_MD2_TIME_CON0, val); + regmap_write(samsung->regmap, DPHY_MD3_TIME_CON0, val); + + val = T_HS_ZERO(timing->hs_zero) | T_HS_PREPARE(timing->hs_prepare); + regmap_write(samsung->regmap, COMBO_MD0_TIME_CON1, val); + regmap_write(samsung->regmap, COMBO_MD1_TIME_CON1, val); + regmap_write(samsung->regmap, COMBO_MD2_TIME_CON1, val); + regmap_write(samsung->regmap, DPHY_MD3_TIME_CON1, val); + + val = T_HS_EXIT(timing->hs_exit) | T_HS_TRAIL(timing->hs_trail_eot); + regmap_write(samsung->regmap, COMBO_MD0_TIME_CON2, val); + regmap_write(samsung->regmap, COMBO_MD1_TIME_CON2, val); + regmap_write(samsung->regmap, COMBO_MD2_TIME_CON2, val); + regmap_write(samsung->regmap, DPHY_MD3_TIME_CON2, val); + + /* TTA-GET/TTA-GO Timing Counter register use default value */ + val = T_TA_GET(0x3) | T_TA_GO(0x0); + regmap_write(samsung->regmap, COMBO_MD0_TIME_CON3, val); + regmap_write(samsung->regmap, COMBO_MD1_TIME_CON3, val); + regmap_write(samsung->regmap, COMBO_MD2_TIME_CON3, val); + regmap_write(samsung->regmap, DPHY_MD3_TIME_CON3, val); + + /* Escape Clock is 20.00MHz */ + regmap_write(samsung->regmap, COMBO_MD0_TIME_CON4, 0x1f4); + regmap_write(samsung->regmap, COMBO_MD1_TIME_CON4, 0x1f4); + regmap_write(samsung->regmap, COMBO_MD2_TIME_CON4, 0x1f4); + regmap_write(samsung->regmap, DPHY_MD3_TIME_CON4, 0x1f4); +} + +static int samsung_mipi_dphy_power_on(struct samsung_mipi_dcphy *samsung) +{ + int ret; + + reset_control_assert(samsung->m_phy_rst); + + samsung_mipi_dcphy_bias_block_enable(samsung); + samsung_mipi_dcphy_pll_configure(samsung); + samsung_mipi_dphy_clk_lane_timing_init(samsung); + samsung_mipi_dphy_data_lane_timing_init(samsung); + ret = samsung_mipi_dcphy_pll_enable(samsung); + if (ret < 0) + return ret; + + samsung_mipi_dphy_lane_enable(samsung); + + reset_control_deassert(samsung->m_phy_rst); + + /* The TSKEWCAL maximum is 100 µsec + * at initial calibration. + */ + usleep_range(100, 110); + + return 0; +} + +static int samsung_mipi_dcphy_power_on(struct phy *phy) +{ + struct samsung_mipi_dcphy *samsung = phy_get_drvdata(phy); + + reset_control_assert(samsung->apb_rst); + udelay(1); + reset_control_deassert(samsung->apb_rst); + + switch (samsung->type) { + case PHY_TYPE_DPHY: + return samsung_mipi_dphy_power_on(samsung); + default: + /* CPHY part to be implemented later */ + return -EOPNOTSUPP; + } + + return 0; +} + +static int samsung_mipi_dcphy_power_off(struct phy *phy) +{ + struct samsung_mipi_dcphy *samsung = phy_get_drvdata(phy); + + switch (samsung->type) { + case PHY_TYPE_DPHY: + samsung_mipi_dphy_lane_disable(samsung); + break; + default: + /* CPHY part to be implemented later */ + return -EOPNOTSUPP; + } + + samsung_mipi_dcphy_pll_disable(samsung); + + return 0; +} + +static int +samsung_mipi_dcphy_pll_ssc_modulation_calc(struct samsung_mipi_dcphy *samsung, + u8 *mfr, u8 *mrr) +{ + unsigned long fin = div64_ul(clk_get_rate(samsung->ref_clk), MSEC_PER_SEC); + u16 prediv = samsung->pll.prediv; + u16 fbdiv = samsung->pll.fbdiv; + u16 min_mfr, max_mfr; + u16 _mfr, best_mfr = 0; + u16 mr, _mrr, best_mrr = 0; + + /* 20KHz ≤ MF ≤ 150KHz */ + max_mfr = DIV_ROUND_UP(fin, (20 * prediv) << 5); + min_mfr = div64_ul(fin, ((150 * prediv) << 5)); + /*0 ≤ mfr ≤ 255 */ + if (max_mfr > 256) + max_mfr = 256; + + for (_mfr = min_mfr; _mfr < max_mfr; _mfr++) { + /* 1 ≤ mrr ≤ 31 */ + for (_mrr = 1; _mrr < 32; _mrr++) { + mr = DIV_ROUND_UP(_mfr * _mrr * 100, fbdiv << 6); + /* 0 ≤ MR ≤ 5% */ + if (mr > 5) + continue; + + if (_mfr * _mrr < 513) { + best_mfr = _mfr; + best_mrr = _mrr; + break; + } + } + } + + if (best_mrr) { + *mfr = best_mfr & 0xff; + *mrr = best_mrr & 0x3f; + } else { + dev_err(samsung->dev, "failed to calc ssc parameter mfr and mrr\n"); + return -EINVAL; + } + + return 0; +} + +static void +samsung_mipi_dcphy_pll_calc_rate(struct samsung_mipi_dcphy *samsung, + unsigned long long rate) +{ + unsigned long prate = clk_get_rate(samsung->ref_clk); + unsigned long fout; + u8 scaler = 0, mfr = 0, mrr = 0; + u16 fbdiv = 0; + u8 prediv = 1; + int dsm = 0; + int ret; + + fout = samsung_mipi_dcphy_pll_round_rate(samsung, prate, rate, + &prediv, &fbdiv, &dsm, + &scaler); + + dev_dbg(samsung->dev, "%s: fin=%lu, req_rate=%llu\n", + __func__, prate, rate); + dev_dbg(samsung->dev, "%s: fout=%lu, prediv=%u, fbdiv=%u\n", + __func__, fout, prediv, fbdiv); + + samsung->pll.prediv = prediv; + samsung->pll.fbdiv = fbdiv; + samsung->pll.dsm = dsm; + samsung->pll.scaler = scaler; + samsung->pll.rate = fout; + + /* + * All DPHY 2.0 compliant Transmitters shall support SSC operating above + * 2.5 Gbps + */ + if (fout > 2500000000LL) { + ret = samsung_mipi_dcphy_pll_ssc_modulation_calc(samsung, + &mfr, &mrr); + if (!ret) { + samsung->pll.ssc_en = true; + samsung->pll.mfr = mfr; + samsung->pll.mrr = mrr; + } + } +} + +static int samsung_mipi_dcphy_configure(struct phy *phy, + union phy_configure_opts *opts) +{ + struct samsung_mipi_dcphy *samsung = phy_get_drvdata(phy); + unsigned long long target_rate = opts->mipi_dphy.hs_clk_rate; + + samsung->lanes = opts->mipi_dphy.lanes > 4 ? 4 : opts->mipi_dphy.lanes; + + samsung_mipi_dcphy_pll_calc_rate(samsung, target_rate); + opts->mipi_dphy.hs_clk_rate = samsung->pll.rate; + + return 0; +} + +static int samsung_mipi_dcphy_init(struct phy *phy) +{ + struct samsung_mipi_dcphy *samsung = phy_get_drvdata(phy); + + return pm_runtime_resume_and_get(samsung->dev); +} + +static int samsung_mipi_dcphy_exit(struct phy *phy) +{ + struct samsung_mipi_dcphy *samsung = phy_get_drvdata(phy); + + return pm_runtime_put(samsung->dev); +} + +static const struct phy_ops samsung_mipi_dcphy_ops = { + .configure = samsung_mipi_dcphy_configure, + .power_on = samsung_mipi_dcphy_power_on, + .power_off = samsung_mipi_dcphy_power_off, + .init = samsung_mipi_dcphy_init, + .exit = samsung_mipi_dcphy_exit, + .owner = THIS_MODULE, +}; + +static const struct regmap_config samsung_mipi_dcphy_regmap_config = { + .name = "dcphy", + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .max_register = 0x10000, +}; + +static struct phy *samsung_mipi_dcphy_xlate(struct device *dev, + const struct of_phandle_args *args) +{ + struct samsung_mipi_dcphy *samsung = dev_get_drvdata(dev); + + if (args->args_count != 1) { + dev_err(dev, "invalid number of arguments\n"); + return ERR_PTR(-EINVAL); + } + + if (samsung->type != PHY_NONE && samsung->type != args->args[0]) + dev_warn(dev, "phy type select %d overwriting type %d\n", + args->args[0], samsung->type); + + samsung->type = args->args[0]; + + return samsung->phy; +} + +static int samsung_mipi_dcphy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct samsung_mipi_dcphy *samsung; + struct phy_provider *phy_provider; + struct resource *res; + void __iomem *regs; + int ret; + + samsung = devm_kzalloc(dev, sizeof(*samsung), GFP_KERNEL); + if (!samsung) + return -ENOMEM; + + samsung->dev = dev; + samsung->pdata = device_get_match_data(dev); + platform_set_drvdata(pdev, samsung); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + samsung->regmap = devm_regmap_init_mmio(dev, regs, + &samsung_mipi_dcphy_regmap_config); + if (IS_ERR(samsung->regmap)) + return dev_err_probe(dev, PTR_ERR(samsung->regmap), "Failed to init regmap\n"); + + samsung->grf_regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); + if (IS_ERR(samsung->grf_regmap)) + return dev_err_probe(dev, PTR_ERR(samsung->grf_regmap), + "Unable to get rockchip,grf\n"); + + samsung->ref_clk = devm_clk_get(dev, "ref"); + if (IS_ERR(samsung->ref_clk)) + return dev_err_probe(dev, PTR_ERR(samsung->ref_clk), + "Failed to get reference clock\n"); + + samsung->pclk = devm_clk_get(dev, "pclk"); + if (IS_ERR(samsung->pclk)) + return dev_err_probe(dev, PTR_ERR(samsung->pclk), "Failed to get pclk\n"); + + samsung->m_phy_rst = devm_reset_control_get(dev, "m_phy"); + if (IS_ERR(samsung->m_phy_rst)) + return dev_err_probe(dev, PTR_ERR(samsung->m_phy_rst), + "Failed to get system m_phy_rst control\n"); + + samsung->s_phy_rst = devm_reset_control_get(dev, "s_phy"); + if (IS_ERR(samsung->s_phy_rst)) + return dev_err_probe(dev, PTR_ERR(samsung->s_phy_rst), + "Failed to get system s_phy_rst control\n"); + + samsung->apb_rst = devm_reset_control_get(dev, "apb"); + if (IS_ERR(samsung->apb_rst)) + return dev_err_probe(dev, PTR_ERR(samsung->apb_rst), + "Failed to get system apb_rst control\n"); + + samsung->grf_apb_rst = devm_reset_control_get(dev, "grf"); + if (IS_ERR(samsung->grf_apb_rst)) + return dev_err_probe(dev, PTR_ERR(samsung->grf_apb_rst), + "Failed to get system grf_apb_rst control\n"); + + samsung->phy = devm_phy_create(dev, NULL, &samsung_mipi_dcphy_ops); + if (IS_ERR(samsung->phy)) + return dev_err_probe(dev, PTR_ERR(samsung->phy), "Failed to create MIPI DC-PHY\n"); + + phy_set_drvdata(samsung->phy, samsung); + + ret = devm_pm_runtime_enable(dev); + if (ret) + return dev_err_probe(dev, ret, "Failed to enable runtime PM\n"); + + phy_provider = devm_of_phy_provider_register(dev, samsung_mipi_dcphy_xlate); + if (IS_ERR(phy_provider)) + return dev_err_probe(dev, PTR_ERR(phy_provider), + "Failed to register phy provider\n"); + + return 0; +} + +static __maybe_unused int samsung_mipi_dcphy_runtime_suspend(struct device *dev) +{ + struct samsung_mipi_dcphy *samsung = dev_get_drvdata(dev); + + clk_disable_unprepare(samsung->pclk); + clk_disable_unprepare(samsung->ref_clk); + + return 0; +} + +static __maybe_unused int samsung_mipi_dcphy_runtime_resume(struct device *dev) +{ + struct samsung_mipi_dcphy *samsung = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(samsung->pclk); + if (ret) { + dev_err(samsung->dev, "Failed to enable pclk, %d\n", ret); + return ret; + } + + clk_prepare_enable(samsung->ref_clk); + if (ret) { + dev_err(samsung->dev, "Failed to enable reference clock, %d\n", ret); + return ret; + } + + return 0; +} + +static const struct dev_pm_ops samsung_mipi_dcphy_pm_ops = { + SET_RUNTIME_PM_OPS(samsung_mipi_dcphy_runtime_suspend, + samsung_mipi_dcphy_runtime_resume, NULL) +}; + +static const struct hs_drv_res_cfg rk3576_dphy_hs_drv_res_cfg = { + .clk_hs_drv_up_ohm = STRENGTH_52_OHM, + .clk_hs_drv_down_ohm = STRENGTH_52_OHM, + .data_hs_drv_up_ohm = STRENGTH_39_OHM, + .data_hs_drv_down_ohm = STRENGTH_39_OHM, +}; + +static const struct hs_drv_res_cfg rk3588_dphy_hs_drv_res_cfg = { + .clk_hs_drv_up_ohm = STRENGTH_34_OHM, + .clk_hs_drv_down_ohm = STRENGTH_34_OHM, + .data_hs_drv_up_ohm = STRENGTH_43_OHM, + .data_hs_drv_down_ohm = STRENGTH_43_OHM, +}; + +static const struct samsung_mipi_dcphy_plat_data rk3576_samsung_mipi_dcphy_plat_data = { + .dphy_hs_drv_res_cfg = &rk3576_dphy_hs_drv_res_cfg, + .dphy_tx_max_lane_kbps = 2500000L, +}; + +static const struct samsung_mipi_dcphy_plat_data rk3588_samsung_mipi_dcphy_plat_data = { + .dphy_hs_drv_res_cfg = &rk3588_dphy_hs_drv_res_cfg, + .dphy_tx_max_lane_kbps = 4500000L, +}; + +static const struct of_device_id samsung_mipi_dcphy_of_match[] = { + { + .compatible = "rockchip,rk3576-mipi-dcphy", + .data = &rk3576_samsung_mipi_dcphy_plat_data, + }, { + .compatible = "rockchip,rk3588-mipi-dcphy", + .data = &rk3588_samsung_mipi_dcphy_plat_data, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, samsung_mipi_dcphy_of_match); + +static struct platform_driver samsung_mipi_dcphy_driver = { + .driver = { + .name = "samsung-mipi-dcphy", + .of_match_table = samsung_mipi_dcphy_of_match, + .pm = &samsung_mipi_dcphy_pm_ops, + }, + .probe = samsung_mipi_dcphy_probe, +}; +module_platform_driver(samsung_mipi_dcphy_driver); + +MODULE_AUTHOR("Guochun Huang "); +MODULE_DESCRIPTION("Samsung MIPI DCPHY Driver"); +MODULE_LICENSE("GPL");