diff options
Diffstat (limited to 'drivers/gpu/drm')
| -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); |