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| author | Thierry Reding <treding@nvidia.com> | 2015-08-05 16:29:40 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-06-17 17:24:08 +0200 |
| commit | e2f716561b7eb6fd5c5962ee0bdbfc7ce2b21243 (patch) | |
| tree | ca5803ea933035417b83727cd5c05f35611a5fea /drivers/clk/tegra/clk-tegra210.c | |
| parent | eddb65e7fdeac175cd61c54da5a217f47861ddd2 (diff) | |
| download | op-kernel-dev-e2f716561b7eb6fd5c5962ee0bdbfc7ce2b21243.zip op-kernel-dev-e2f716561b7eb6fd5c5962ee0bdbfc7ce2b21243.tar.gz | |
clk: tegra: Disable spread spectrum on pll_d2
Enabling spread spectrum on pll_d2 can lead to issues with display
modes. HDMI monitors, for example, would report "Signal Error" and
some modes driven over DisplayPort would generate fuzzy horizontal
bands.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk-tegra210.c')
| -rw-r--r-- | drivers/clk/tegra/clk-tegra210.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c index 6149573..c1fabd8 100644 --- a/drivers/clk/tegra/clk-tegra210.c +++ b/drivers/clk/tegra/clk-tegra210.c @@ -1935,8 +1935,9 @@ static struct tegra_clk_pll_params pll_d2_params = { .sdm_din_mask = PLLA_SDM_DIN_MASK, .sdm_ctrl_reg = PLLD2_MISC1, .sdm_ctrl_en_mask = PLLD2_SDM_EN_MASK, - .ssc_ctrl_reg = PLLD2_MISC1, - .ssc_ctrl_en_mask = PLLD2_SSC_EN_MASK, + /* disable spread-spectrum for pll_d2 */ + .ssc_ctrl_reg = 0, + .ssc_ctrl_en_mask = 0, .round_p_to_pdiv = pll_qlin_p_to_pdiv, .pdiv_tohw = pll_qlin_pdiv_to_hw, .div_nmp = &pllss_nmp, |
