We have the generic PM domain support for Tegra SoCs now. So remove the
duplicated power sequence here.

Signed-off-by: Vince Hsu <vin...@nvidia.com>
---
 drivers/gpu/drm/tegra/dc.c | 46 +++++++++++-----------------------------------
 1 file changed, 11 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 1a52522f5da7..838bb8634da7 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -28,7 +28,6 @@ struct tegra_dc_soc_info {
        bool supports_cursor;
        bool supports_block_linear;
        unsigned int pitch_align;
-       bool has_powergate;
 };
 
 struct tegra_plane {
@@ -1786,7 +1785,6 @@ static const struct tegra_dc_soc_info tegra20_dc_soc_info 
= {
        .supports_cursor = false,
        .supports_block_linear = false,
        .pitch_align = 8,
-       .has_powergate = false,
 };
 
 static const struct tegra_dc_soc_info tegra30_dc_soc_info = {
@@ -1795,7 +1793,6 @@ static const struct tegra_dc_soc_info tegra30_dc_soc_info 
= {
        .supports_cursor = false,
        .supports_block_linear = false,
        .pitch_align = 8,
-       .has_powergate = false,
 };
 
 static const struct tegra_dc_soc_info tegra114_dc_soc_info = {
@@ -1804,7 +1801,6 @@ static const struct tegra_dc_soc_info 
tegra114_dc_soc_info = {
        .supports_cursor = false,
        .supports_block_linear = false,
        .pitch_align = 64,
-       .has_powergate = true,
 };
 
 static const struct tegra_dc_soc_info tegra124_dc_soc_info = {
@@ -1813,7 +1809,6 @@ static const struct tegra_dc_soc_info 
tegra124_dc_soc_info = {
        .supports_cursor = true,
        .supports_block_linear = true,
        .pitch_align = 64,
-       .has_powergate = true,
 };
 
 static const struct of_device_id tegra_dc_of_match[] = {
@@ -1906,33 +1901,18 @@ static int tegra_dc_probe(struct platform_device *pdev)
                return PTR_ERR(dc->rst);
        }
 
-       if (dc->soc->has_powergate) {
-               if (dc->pipe == 0)
-                       dc->powergate = TEGRA_POWERGATE_DIS;
-               else
-                       dc->powergate = TEGRA_POWERGATE_DISB;
-
-               err = tegra_powergate_sequence_power_up(dc->powergate, dc->clk,
-                                                       dc->rst);
-               if (err < 0) {
-                       dev_err(&pdev->dev, "failed to power partition: %d\n",
-                               err);
-                       return err;
-               }
-       } else {
-               err = clk_prepare_enable(dc->clk);
-               if (err < 0) {
-                       dev_err(&pdev->dev, "failed to enable clock: %d\n",
-                               err);
-                       return err;
-               }
+       err = clk_prepare_enable(dc->clk);
+       if (err < 0) {
+               dev_err(&pdev->dev, "failed to enable clock: %d\n",
+                       err);
+               return err;
+       }
 
-               err = reset_control_deassert(dc->rst);
-               if (err < 0) {
-                       dev_err(&pdev->dev, "failed to deassert reset: %d\n",
-                               err);
-                       return err;
-               }
+       err = reset_control_deassert(dc->rst);
+       if (err < 0) {
+               dev_err(&pdev->dev, "failed to deassert reset: %d\n",
+                       err);
+               return err;
        }
 
        regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1987,10 +1967,6 @@ static int tegra_dc_remove(struct platform_device *pdev)
        }
 
        reset_control_assert(dc->rst);
-
-       if (dc->soc->has_powergate)
-               tegra_powergate_power_off(dc->powergate);
-
        clk_disable_unprepare(dc->clk);
 
        return 0;
-- 
2.1.4

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