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Commit 9b6c14b8 authored by Thierry Reding's avatar Thierry Reding
Browse files

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: default avatarThierry Reding <treding@nvidia.com>
parent 30f11cfd

drivers/gpu/drm/tegra/drm.c

+1 −0
Original line number Diff line number Diff line
@@ -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 */ }

};

drivers/gpu/drm/tegra/sor.c

+110 −0
Original line number Diff line number Diff line
@@ -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 },