From: Kaustabh Chakraborty <kauschluss@disroot.org>
Date: Thu, 12 Jun 2025 15:09:30 +0000 (+0530)
Subject: phy: exynos-mipi-video: introduce support for exynos7870
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=543f5e314282c4c2e5114f88ddecc9aeaf0985e2;p=thirdparty%2Fkernel%2Flinux.git

phy: exynos-mipi-video: introduce support for exynos7870

Add support for Exynos7870 in the existing MIPI CSIS/DSIM driver. The
SoC has one DSIM phy and three CSIS phys.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250612-exynos7870-mipi-phy-v1-2-3fff0b62d9d3@disroot.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---

diff --git a/drivers/phy/samsung/phy-exynos-mipi-video.c b/drivers/phy/samsung/phy-exynos-mipi-video.c
index f6756a609a9a0..b184923b9b400 100644
--- a/drivers/phy/samsung/phy-exynos-mipi-video.c
+++ b/drivers/phy/samsung/phy-exynos-mipi-video.c
@@ -213,6 +213,55 @@ static const struct mipi_phy_device_desc exynos5433_mipi_phy = {
 	},
 };
 
+static const struct mipi_phy_device_desc exynos7870_mipi_phy = {
+	.num_regmaps = 3,
+	.regmap_names = {
+		"samsung,pmu-syscon",
+		"samsung,disp-sysreg",
+		"samsung,cam-sysreg"
+	},
+	.num_phys = 4,
+	.phys = {
+		{
+			/* EXYNOS_MIPI_PHY_ID_CSIS0 */
+			.coupled_phy_id = EXYNOS_MIPI_PHY_ID_DSIM0,
+			.enable_val = EXYNOS4_PHY_ENABLE,
+			.enable_reg = EXYNOS7870_MIPI_PHY_CONTROL0,
+			.enable_map = EXYNOS_MIPI_REGMAP_PMU,
+			.resetn_val = BIT(0),
+			.resetn_reg = 0,
+			.resetn_map = EXYNOS_MIPI_REGMAP_CAM0,
+		}, {
+			/* EXYNOS_MIPI_PHY_ID_DSIM0 */
+			.coupled_phy_id = EXYNOS_MIPI_PHY_ID_CSIS0,
+			.enable_val = EXYNOS4_PHY_ENABLE,
+			.enable_reg = EXYNOS7870_MIPI_PHY_CONTROL0,
+			.enable_map = EXYNOS_MIPI_REGMAP_PMU,
+			.resetn_val = BIT(0),
+			.resetn_reg = 0,
+			.resetn_map = EXYNOS_MIPI_REGMAP_DISP,
+		}, {
+			/* EXYNOS_MIPI_PHY_ID_CSIS1 */
+			.coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+			.enable_val = EXYNOS4_PHY_ENABLE,
+			.enable_reg = EXYNOS7870_MIPI_PHY_CONTROL1,
+			.enable_map = EXYNOS_MIPI_REGMAP_PMU,
+			.resetn_val = BIT(1),
+			.resetn_reg = 0,
+			.resetn_map = EXYNOS_MIPI_REGMAP_CAM0,
+		}, {
+			/* EXYNOS_MIPI_PHY_ID_CSIS2 */
+			.coupled_phy_id = EXYNOS_MIPI_PHY_ID_NONE,
+			.enable_val = EXYNOS4_PHY_ENABLE,
+			.enable_reg = EXYNOS7870_MIPI_PHY_CONTROL2,
+			.enable_map = EXYNOS_MIPI_REGMAP_PMU,
+			.resetn_val = BIT(2),
+			.resetn_reg = 0,
+			.resetn_map = EXYNOS_MIPI_REGMAP_CAM0,
+		},
+	},
+};
+
 struct exynos_mipi_video_phy {
 	struct regmap *regmaps[EXYNOS_MIPI_REGMAPS_NUM];
 	int num_phys;
@@ -351,6 +400,9 @@ static const struct of_device_id exynos_mipi_video_phy_of_match[] = {
 	}, {
 		.compatible = "samsung,exynos5433-mipi-video-phy",
 		.data = &exynos5433_mipi_phy,
+	}, {
+		.compatible = "samsung,exynos7870-mipi-video-phy",
+		.data = &exynos7870_mipi_phy,
 	},
 	{ /* sentinel */ },
 };
diff --git a/include/linux/soc/samsung/exynos-regs-pmu.h b/include/linux/soc/samsung/exynos-regs-pmu.h
index 7754697e58107..fa28a8784d658 100644
--- a/include/linux/soc/samsung/exynos-regs-pmu.h
+++ b/include/linux/soc/samsung/exynos-regs-pmu.h
@@ -665,6 +665,11 @@
 /* For Exynos990 */
 #define EXYNOS990_PHY_CTRL_USB20				(0x72C)
 
+/* For Exynos7870 */
+#define EXYNOS7870_MIPI_PHY_CONTROL0				(0x070c)
+#define EXYNOS7870_MIPI_PHY_CONTROL1				(0x0714)
+#define EXYNOS7870_MIPI_PHY_CONTROL2				(0x0734)
+
 /* For Tensor GS101 */
 /* PMU ALIVE */
 #define GS101_SYSIP_DAT0					(0x810)