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Commit 72ba4cf5 authored by Thierry Reding's avatar Thierry Reding
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drm/tegra: dpaux: Keep reset defaults for hybrid pad parameters 



Keep the reset values for the common mode voltage, output driver
impedance control and output driver current control parameters. This
fixes errors seen during SCDC communication with HDMI sinks.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 013e2b72

drivers/gpu/drm/tegra/dpaux.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -322,6 +322,9 @@ static int tegra_dpaux_pad_config(struct tegra_dpaux *dpaux, unsigned function) 
	case DPAUX_PADCTL_FUNC_I2C:

	case DPAUX_PADCTL_FUNC_I2C:

		value = DPAUX_HYBRID_PADCTL_I2C_SDA_INPUT_RCV |

		value = DPAUX_HYBRID_PADCTL_I2C_SDA_INPUT_RCV |

			DPAUX_HYBRID_PADCTL_I2C_SCL_INPUT_RCV |

			DPAUX_HYBRID_PADCTL_I2C_SCL_INPUT_RCV |

			DPAUX_HYBRID_PADCTL_AUX_CMH(2) |

			DPAUX_HYBRID_PADCTL_AUX_DRVZ(4) |

			DPAUX_HYBRID_PADCTL_AUX_DRVI(0x18) |

			DPAUX_HYBRID_PADCTL_MODE_I2C;

			DPAUX_HYBRID_PADCTL_MODE_I2C;

		break;

		break;