diff options
author | Thierry Reding <treding@nvidia.com> | 2016-06-09 17:53:57 +0200 |
---|---|---|
committer | Thierry Reding <treding@nvidia.com> | 2016-07-14 14:57:01 +0200 |
commit | 618dee3941a43d8d4f762a7af99bcb59baba2bc5 (patch) | |
tree | f2d28fff57d07089847f8e5972a1e12af742cdd8 /drivers/gpu/drm/tegra | |
parent | 5d2304c1de6b353a0e09f4ed22165835f5651e4b (diff) | |
download | op-kernel-dev-618dee3941a43d8d4f762a7af99bcb59baba2bc5.zip op-kernel-dev-618dee3941a43d8d4f762a7af99bcb59baba2bc5.tar.gz |
drm/tegra: sor: Use sor1_src clock to set parent for HDMI
When running in HDMI mode, the sor1 IP block needs to use the sor1_src
as parent clock, and in turn configure the sor1_src to use pll_d2_out0
as its parent.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
-rw-r--r-- | drivers/gpu/drm/tegra/sor.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index 896ba3b..26568ca 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -173,6 +173,7 @@ struct tegra_sor { struct clk *clk_parent; struct clk *clk_brick; struct clk *clk_safe; + struct clk *clk_src; struct clk *clk_dp; struct clk *clk; @@ -2101,7 +2102,11 @@ static void tegra_sor_hdmi_enable(struct drm_encoder *encoder) tegra_sor_writel(sor, 0x00000000, SOR_XBAR_POL); /* switch to parent clock */ - err = tegra_sor_set_parent_clock(sor, sor->clk_parent); + err = clk_set_parent(sor->clk_src, sor->clk_parent); + if (err < 0) + dev_err(sor->dev, "failed to set source clock: %d\n", err); + + err = tegra_sor_set_parent_clock(sor, sor->clk_src); if (err < 0) dev_err(sor->dev, "failed to set parent clock: %d\n", err); @@ -2595,6 +2600,16 @@ static int tegra_sor_probe(struct platform_device *pdev) goto remove; } + if (sor->soc->supports_hdmi || sor->soc->supports_dp) { + sor->clk_src = devm_clk_get(&pdev->dev, "source"); + if (IS_ERR(sor->clk_src)) { + err = PTR_ERR(sor->clk_src); + dev_err(sor->dev, "failed to get source clock: %d\n", + err); + goto remove; + } + } + sor->clk_parent = devm_clk_get(&pdev->dev, "parent"); if (IS_ERR(sor->clk_parent)) { err = PTR_ERR(sor->clk_parent); |