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clk: tegra: Disable spread spectrum on pll_d2

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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>
This commit is contained in:
Thierry Reding 2015-08-05 16:29:40 +02:00
parent eddb65e7fd
commit e2f716561b
1 changed files with 3 additions and 2 deletions
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5
drivers/clk/tegra/clk-tegra210.c
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@ -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,