phy: exynos-mipi-video: Add support for Exynos 5420 and 5433 SoCs

This patch adds support for MIPI DPHYs found in Exynos5420-compatible
(5420, 5422 and 5800) and Exynos5433 SoCs. Those SoCs differs from
earlier by different offset of MIPI DPHY registers in PMU controllers
(Exynos 5420-compatible case) or by moving MIPI DPHY reset registers to
separate system register controllers (Exynos 5433 case). In both case
also additional 5th PHY (MIPI CSIS 2) has been added.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

1 files changed, 128 insertions, 1 deletions

diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
index 3cb69e005f18..cc093ebfda94 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -1,7 +1,7 @@
 /*
  * Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver
  *
- * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Copyright (C) 2013,2016 Samsung Electronics Co., Ltd.
  * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -13,6 +13,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/mfd/syscon/exynos4-pmu.h>
+#include <linux/mfd/syscon/exynos5-pmu.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -28,11 +29,15 @@ enum exynos_mipi_phy_id {
         EXYNOS_MIPI_PHY_ID_DSIM0,
         EXYNOS_MIPI_PHY_ID_CSIS1,
         EXYNOS_MIPI_PHY_ID_DSIM1,
+        EXYNOS_MIPI_PHY_ID_CSIS2,
         EXYNOS_MIPI_PHYS_NUM
 };
 
 enum exynos_mipi_phy_regmap_id {
         EXYNOS_MIPI_REGMAP_PMU,
+        EXYNOS_MIPI_REGMAP_DISP,
+        EXYNOS_MIPI_REGMAP_CAM0,
+        EXYNOS_MIPI_REGMAP_CAM1,
         EXYNOS_MIPI_REGMAPS_NUM
 };
 
@@ -96,6 +101,122 @@ static const struct mipi_phy_device_desc s5pv210_mipi_phy = {
         },
 };
 
+static const struct mipi_phy_device_desc exynos5420_mipi_phy = {
+        .num_regmaps = 1,
+        .regmap_names = {"syscon"},
+        .num_phys = 5,
+        .phys = {
+                {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS0 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_DSIM0,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5420_MIPI_PHY0_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = EXYNOS5_MIPI_PHY_S_RESETN,
+                        .resetn_reg = EXYNOS5420_MIPI_PHY0_CONTROL,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_PMU,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_DSIM0 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_CSIS0,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5420_MIPI_PHY0_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = EXYNOS5_MIPI_PHY_M_RESETN,
+                        .resetn_reg = EXYNOS5420_MIPI_PHY0_CONTROL,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_PMU,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS1 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_DSIM1,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5420_MIPI_PHY1_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = EXYNOS5_MIPI_PHY_S_RESETN,
+                        .resetn_reg = EXYNOS5420_MIPI_PHY1_CONTROL,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_PMU,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_DSIM1 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_CSIS1,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5420_MIPI_PHY1_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = EXYNOS5_MIPI_PHY_M_RESETN,
+                        .resetn_reg = EXYNOS5420_MIPI_PHY1_CONTROL,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_PMU,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS2 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5420_MIPI_PHY2_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = EXYNOS5_MIPI_PHY_S_RESETN,
+                        .resetn_reg = EXYNOS5420_MIPI_PHY2_CONTROL,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_PMU,
+                },
+        },
+};
+
+#define EXYNOS5433_SYSREG_DISP_MIPI_PHY         0x100C
+#define EXYNOS5433_SYSREG_CAM0_MIPI_DPHY_CON    0x1014
+#define EXYNOS5433_SYSREG_CAM1_MIPI_DPHY_CON    0x1020
+
+static const struct mipi_phy_device_desc exynos5433_mipi_phy = {
+        .num_regmaps = 4,
+        .regmap_names = {
+                "samsung,pmu-syscon",
+                "samsung,disp-sysreg",
+                "samsung,cam0-sysreg",
+                "samsung,cam1-sysreg"
+        },
+        .num_phys = 5,
+        .phys = {
+                {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS0 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_DSIM0,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5433_MIPI_PHY0_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = BIT(0),
+                        .resetn_reg = EXYNOS5433_SYSREG_CAM0_MIPI_DPHY_CON,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_CAM0,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_DSIM0 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_CSIS0,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5433_MIPI_PHY0_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = BIT(0),
+                        .resetn_reg = EXYNOS5433_SYSREG_DISP_MIPI_PHY,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_DISP,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS1 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5433_MIPI_PHY1_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = BIT(1),
+                        .resetn_reg = EXYNOS5433_SYSREG_CAM0_MIPI_DPHY_CON,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_CAM0,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_DSIM1 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5433_MIPI_PHY1_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = BIT(1),
+                        .resetn_reg = EXYNOS5433_SYSREG_DISP_MIPI_PHY,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_DISP,
+                }, {
+                        /* EXYNOS_MIPI_PHY_ID_CSIS2 */
+                        .coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+                        .enable_val = EXYNOS5_PHY_ENABLE,
+                        .enable_reg = EXYNOS5433_MIPI_PHY2_CONTROL,
+                        .enable_map = EXYNOS_MIPI_REGMAP_PMU,
+                        .resetn_val = BIT(0),
+                        .resetn_reg = EXYNOS5433_SYSREG_CAM1_MIPI_DPHY_CON,
+                        .resetn_map = EXYNOS_MIPI_REGMAP_CAM1,
+                },
+        },
+};
 
 struct exynos_mipi_video_phy {
         struct regmap *regmaps[EXYNOS_MIPI_REGMAPS_NUM];
@@ -241,6 +362,12 @@ static const struct of_device_id exynos_mipi_video_phy_of_match[] = {
         {
                 .compatible = "samsung,s5pv210-mipi-video-phy",
                 .data = &s5pv210_mipi_phy,
+        }, {
+                .compatible = "samsung,exynos5420-mipi-video-phy",
+                .data = &exynos5420_mipi_phy,
+        }, {
+                .compatible = "samsung,exynos5433-mipi-video-phy",
+                .data = &exynos5433_mipi_phy,
         },
         { /* sentinel */ },
 };