diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-01-10 17:12:54 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-01-10 17:12:54 +0100 |
| commit | 1766938c2a1d36aa1963c7669f16b06bb9673860 (patch) | |
| tree | bc3e729a9139724090d66a436e22ff387de0221e /drivers/gpu | |
| parent | d48b4eab92321df96dd8fd0564c9fd0f30f4ac7a (diff) | |
This allows the HDMI output on Cardhu to work properly.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index da1d55acc41d..635e584dca76 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1175,6 +1175,36 @@ static int tegra_dc_init(struct host1x_client *client) struct tegra_dc *dc = host1x_client_to_dc(client); int err; + if (1) { + void __iomem *mc = ioremap_nocache(0x7000f000, SZ_4K); + + switch (dc->pipe) { + case 0: + dev_info(client->dev, "latency allowance: display A\n"); + dev_info(client->dev, " %08x\n", readl(mc + 0x2e8)); + dev_info(client->dev, " %08x\n", readl(mc + 0x2ec)); + dev_info(client->dev, " %08x\n", readl(mc + 0x2f0)); + + writel(0x00200020, mc + 0x2e8); + writel(0x00200020, mc + 0x2ec); + writel(0x0000007f, mc + 0x2f0); + break; + + case 1: + dev_info(client->dev, "latency allowance: display B\n"); + dev_info(client->dev, " %08x\n", readl(mc + 0x2f4)); + dev_info(client->dev, " %08x\n", readl(mc + 0x2f8)); + dev_info(client->dev, " %08x\n", readl(mc + 0x2fc)); + + writel(0x00200010, mc + 0x2f4); + writel(0x00200020, mc + 0x2f8); + writel(0x0000007f, mc + 0x2fc); + break; + } + + iounmap(mc); + } + drm_crtc_init(tegra->drm, &dc->base, &tegra_crtc_funcs); drm_mode_crtc_set_gamma_size(&dc->base, 256); drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs); |