diff options
| author | Svyatoslav Ryhel <clamor95@gmail.com> | 2024-01-23 19:16:22 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2024-04-21 09:07:01 +0200 |
| commit | 8a8bfd8c137ced359958b8409b73d7f72466b89d (patch) | |
| tree | d56035e3cd3366b3cee1cf908a4fd07d7bc8361d | |
| parent | 97b6914e2b125ae47ae6711cb0975a18b75c1634 (diff) | |
video: tegra20: dc: add powergate
Add powergate use on T114 to complete resetting of DC.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | drivers/video/tegra20/tegra-dc.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/video/tegra20/tegra-dc.c b/drivers/video/tegra20/tegra-dc.c index 56a23b3c979..cc4b5b70015 100644 --- a/drivers/video/tegra20/tegra-dc.c +++ b/drivers/video/tegra20/tegra-dc.c @@ -20,6 +20,7 @@ #include <asm/arch/clock.h> #include <asm/arch/funcmux.h> #include <asm/arch/pinmux.h> +#include <asm/arch/powergate.h> #include <asm/arch/pwm.h> #include "tegra-dc.h" @@ -30,6 +31,7 @@ DECLARE_GLOBAL_DATA_PTR; struct tegra_dc_soc_info { bool has_timer; bool has_rgb; + bool has_pgate; }; /* Information about the display controller */ @@ -349,6 +351,28 @@ static int tegra_lcd_probe(struct udevice *dev) funcmux_select(PERIPH_ID_DISP1, FUNCMUX_DEFAULT); #endif + if (priv->soc->has_pgate) { + uint powergate; + + if (priv->pipe) + powergate = TEGRA_POWERGATE_DISB; + else + powergate = TEGRA_POWERGATE_DIS; + + ret = tegra_powergate_power_off(powergate); + if (ret < 0) { + log_err("failed to power off DISP gate: %d", ret); + return ret; + } + + ret = tegra_powergate_sequence_power_up(powergate, + priv->dc_clk[0]); + if (ret < 0) { + log_err("failed to power up DISP gate: %d", ret); + return ret; + } + } + if (tegra_display_probe(priv, (void *)plat->base)) { debug("%s: Failed to probe display driver\n", __func__); return -1; @@ -493,16 +517,19 @@ static const struct video_ops tegra_lcd_ops = { static const struct tegra_dc_soc_info tegra20_dc_soc_info = { .has_timer = true, .has_rgb = true, + .has_pgate = false, }; static const struct tegra_dc_soc_info tegra30_dc_soc_info = { .has_timer = false, .has_rgb = true, + .has_pgate = false, }; static const struct tegra_dc_soc_info tegra114_dc_soc_info = { .has_timer = false, .has_rgb = false, + .has_pgate = true, }; static const struct udevice_id tegra_lcd_ids[] = { |