From 9b6c14b8aa469e47fdf51d2e6cf6dd59975b8d02 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 21 Sep 2018 12:27:46 +0200
Subject: [PATCH] drm/tegra: sor: Add Tegra194 support

The SOR implemented in Tegra194 is subtly different from its predecessor
found in Tegra186. Most notably some registers have been moved around so
it is no longer compatible.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/drm/tegra/drm.c |   1 +
 drivers/gpu/drm/tegra/sor.c | 110 ++++++++++++++++++++++++++++++++++++
 2 files changed, 111 insertions(+)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 0ed6fa8ac446..0ee924e3d0a1 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -1257,6 +1257,7 @@ static const struct of_device_id host1x_drm_subdevs[] = {
 	{ .compatible = "nvidia,tegra186-vic", },
 	{ .compatible = "nvidia,tegra194-display", },
 	{ .compatible = "nvidia,tegra194-dc", },
+	{ .compatible = "nvidia,tegra194-sor", },
 	{ /* sentinel */ }
 };
 
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index d7fe9f15def1..b129da2e5afd 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -282,6 +282,85 @@ static const struct tegra_sor_hdmi_settings tegra186_sor_hdmi_defaults[] = {
 	}
 };
 
+static const struct tegra_sor_hdmi_settings tegra194_sor_hdmi_defaults[] = {
+	{
+		.frequency = 54000000,
+		.vcocap = 0,
+		.filter = 5,
+		.ichpmp = 5,
+		.loadadj = 3,
+		.tmds_termadj = 0xf,
+		.tx_pu_value = 0,
+		.bg_temp_coef = 3,
+		.bg_vref_level = 8,
+		.avdd10_level = 4,
+		.avdd14_level = 4,
+		.sparepll = 0x54,
+		.drive_current = { 0x3a, 0x3a, 0x3a, 0x33 },
+		.preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+	}, {
+		.frequency = 75000000,
+		.vcocap = 1,
+		.filter = 5,
+		.ichpmp = 5,
+		.loadadj = 3,
+		.tmds_termadj = 0xf,
+		.tx_pu_value = 0,
+		.bg_temp_coef = 3,
+		.bg_vref_level = 8,
+		.avdd10_level = 4,
+		.avdd14_level = 4,
+		.sparepll = 0x44,
+		.drive_current = { 0x3a, 0x3a, 0x3a, 0x33 },
+		.preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+	}, {
+		.frequency = 150000000,
+		.vcocap = 3,
+		.filter = 5,
+		.ichpmp = 5,
+		.loadadj = 3,
+		.tmds_termadj = 15,
+		.tx_pu_value = 0x66 /* 0 */,
+		.bg_temp_coef = 3,
+		.bg_vref_level = 8,
+		.avdd10_level = 4,
+		.avdd14_level = 4,
+		.sparepll = 0x00, /* 0x34 */
+		.drive_current = { 0x3a, 0x3a, 0x3a, 0x37 },
+		.preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+	}, {
+		.frequency = 300000000,
+		.vcocap = 3,
+		.filter = 5,
+		.ichpmp = 5,
+		.loadadj = 3,
+		.tmds_termadj = 15,
+		.tx_pu_value = 64,
+		.bg_temp_coef = 3,
+		.bg_vref_level = 8,
+		.avdd10_level = 4,
+		.avdd14_level = 4,
+		.sparepll = 0x34,
+		.drive_current = { 0x3d, 0x3d, 0x3d, 0x33 },
+		.preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+	}, {
+		.frequency = 600000000,
+		.vcocap = 3,
+		.filter = 5,
+		.ichpmp = 5,
+		.loadadj = 3,
+		.tmds_termadj = 12,
+		.tx_pu_value = 96,
+		.bg_temp_coef = 3,
+		.bg_vref_level = 8,
+		.avdd10_level = 4,
+		.avdd14_level = 4,
+		.sparepll = 0x34,
+		.drive_current = { 0x3d, 0x3d, 0x3d, 0x33 },
+		.preemphasis = { 0x00, 0x00, 0x00, 0x00 },
+	}
+};
+
 struct tegra_sor_regs {
 	unsigned int head_state0;
 	unsigned int head_state1;
@@ -2894,7 +2973,38 @@ static const struct tegra_sor_soc tegra186_sor1 = {
 	.xbar_cfg = tegra124_sor_xbar_cfg,
 };
 
+static const struct tegra_sor_regs tegra194_sor_regs = {
+	.head_state0 = 0x151,
+	.head_state1 = 0x155,
+	.head_state2 = 0x159,
+	.head_state3 = 0x15d,
+	.head_state4 = 0x161,
+	.head_state5 = 0x165,
+	.pll0 = 0x169,
+	.pll1 = 0x16a,
+	.pll2 = 0x16b,
+	.pll3 = 0x16c,
+	.dp_padctl0 = 0x16e,
+	.dp_padctl2 = 0x16f,
+};
+
+static const struct tegra_sor_soc tegra194_sor = {
+	.supports_edp = true,
+	.supports_lvds = false,
+	.supports_hdmi = true,
+	.supports_dp = true,
+
+	.regs = &tegra194_sor_regs,
+	.has_nvdisplay = true,
+
+	.num_settings = ARRAY_SIZE(tegra194_sor_hdmi_defaults),
+	.settings = tegra194_sor_hdmi_defaults,
+
+	.xbar_cfg = tegra210_sor_xbar_cfg,
+};
+
 static const struct of_device_id tegra_sor_of_match[] = {
+	{ .compatible = "nvidia,tegra194-sor", .data = &tegra194_sor },
 	{ .compatible = "nvidia,tegra186-sor1", .data = &tegra186_sor1 },
 	{ .compatible = "nvidia,tegra186-sor", .data = &tegra186_sor },
 	{ .compatible = "nvidia,tegra210-sor1", .data = &tegra210_sor1 },