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drm/tegra: Add Tegra124 DC support

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Tegra124 and later support interlacing, but the driver doesn't support
it yet. Make sure interlacing stays disabled on hardware that supports
it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2013-12-12 11:03:59 +01:00
parent 6b7c79d191
commit 8620fc629a
4 changed files with 53 additions and 6 deletions
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50
drivers/gpu/drm/tegra/dc.c
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@@ -15,6 +15,10 @@
#include "drm.h"
#include "gem.h"
struct tegra_dc_soc_info {
bool supports_interlacing;
};
struct tegra_plane {
struct drm_plane base;
unsigned int index;
@@ -658,6 +662,13 @@ static int tegra_crtc_mode_set(struct drm_crtc *crtc,
/* program display mode */
tegra_dc_set_timings(dc, mode);
/* interlacing isn't supported yet, so disable it */
if (dc->soc->supports_interlacing) {
value = tegra_dc_readl(dc, DC_DISP_INTERLACE_CONTROL);
value &= ~INTERLACE_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_INTERLACE_CONTROL);
}
value = DE_SELECT_ACTIVE | DE_CONTROL_NORMAL;
tegra_dc_writel(dc, value, DC_DISP_DATA_ENABLE_OPTIONS);
@@ -1167,8 +1178,36 @@ static const struct host1x_client_ops dc_client_ops = {
.exit = tegra_dc_exit,
};
static const struct tegra_dc_soc_info tegra20_dc_soc_info = {
.supports_interlacing = false,
};
static const struct tegra_dc_soc_info tegra30_dc_soc_info = {
.supports_interlacing = false,
};
static const struct tegra_dc_soc_info tegra124_dc_soc_info = {
.supports_interlacing = true,
};
static const struct of_device_id tegra_dc_of_match[] = {
{
.compatible = "nvidia,tegra124-dc",
.data = &tegra124_dc_soc_info,
}, {
.compatible = "nvidia,tegra30-dc",
.data = &tegra30_dc_soc_info,
}, {
.compatible = "nvidia,tegra20-dc",
.data = &tegra20_dc_soc_info,
}, {
/* sentinel */
}
};
static int tegra_dc_probe(struct platform_device *pdev)
{
const struct of_device_id *id;
struct resource *regs;
struct tegra_dc *dc;
int err;
@@ -1177,9 +1216,14 @@ static int tegra_dc_probe(struct platform_device *pdev)
if (!dc)
return -ENOMEM;
id = of_match_node(tegra_dc_of_match, pdev->dev.of_node);
if (!id)
return -ENODEV;
spin_lock_init(&dc->lock);
INIT_LIST_HEAD(&dc->list);
dc->dev = &pdev->dev;
dc->soc = id->data;
dc->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(dc->clk)) {
@@ -1253,12 +1297,6 @@ static int tegra_dc_remove(struct platform_device *pdev)
return 0;
}
static struct of_device_id tegra_dc_of_match[] = {
{ .compatible = "nvidia,tegra30-dc", },
{ .compatible = "nvidia,tegra20-dc", },
{ },
};
struct platform_driver tegra_dc_driver = {
.driver = {
.name = "tegra-dc",