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Commit e2f71656 authored by Thierry Reding's avatar Thierry Reding
Browse files

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: default avatarThierry Reding <treding@nvidia.com>
parent eddb65e7

drivers/clk/tegra/clk-tegra210.c

+3 −2
Original line number Diff line number Diff line
@@ -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,