tc358767.c (99fc8e963a4c0203dba26a77cf737db6081bca14) tc358767.c (f3b8adbe1911f66fd3cab1aaa74f0f66b7ceda25)
1/*
2 * tc358767 eDP bridge driver
3 *
4 * Copyright (C) 2016 CogentEmbedded Inc
5 * Author: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
6 *
7 * Copyright (C) 2016 Pengutronix, Philipp Zabel <p.zabel@pengutronix.de>
8 *

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92/* Main Channel */
93#define DP0_SECSAMPLE 0x0640
94#define DP0_VIDSYNCDELAY 0x0644
95#define DP0_TOTALVAL 0x0648
96#define DP0_STARTVAL 0x064c
97#define DP0_ACTIVEVAL 0x0650
98#define DP0_SYNCVAL 0x0654
99#define DP0_MISC 0x0658
1/*
2 * tc358767 eDP bridge driver
3 *
4 * Copyright (C) 2016 CogentEmbedded Inc
5 * Author: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
6 *
7 * Copyright (C) 2016 Pengutronix, Philipp Zabel <p.zabel@pengutronix.de>
8 *

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92/* Main Channel */
93#define DP0_SECSAMPLE 0x0640
94#define DP0_VIDSYNCDELAY 0x0644
95#define DP0_TOTALVAL 0x0648
96#define DP0_STARTVAL 0x064c
97#define DP0_ACTIVEVAL 0x0650
98#define DP0_SYNCVAL 0x0654
99#define DP0_MISC 0x0658
100#define TU_SIZE_RECOMMENDED (0x3f << 16) /* LSCLK cycles per TU */
100#define TU_SIZE_RECOMMENDED (63) /* LSCLK cycles per TU */
101#define BPC_6 (0 << 5)
102#define BPC_8 (1 << 5)
103
104/* AUX channel */
105#define DP0_AUXCFG0 0x0660
106#define DP0_AUXCFG1 0x0664
107#define AUX_RX_FILTER_EN BIT(16)
108

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711
712 /*
713 * Recommended maximum number of symbols transferred in a transfer unit:
714 * DIV_ROUND_UP((input active video bandwidth in bytes) * tu_size,
715 * (output active video bandwidth in bytes))
716 * Must be less than tu_size.
717 */
718 max_tu_symbol = TU_SIZE_RECOMMENDED - 1;
101#define BPC_6 (0 << 5)
102#define BPC_8 (1 << 5)
103
104/* AUX channel */
105#define DP0_AUXCFG0 0x0660
106#define DP0_AUXCFG1 0x0664
107#define AUX_RX_FILTER_EN BIT(16)
108

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711
712 /*
713 * Recommended maximum number of symbols transferred in a transfer unit:
714 * DIV_ROUND_UP((input active video bandwidth in bytes) * tu_size,
715 * (output active video bandwidth in bytes))
716 * Must be less than tu_size.
717 */
718 max_tu_symbol = TU_SIZE_RECOMMENDED - 1;
719 tc_write(DP0_MISC, (max_tu_symbol << 23) | TU_SIZE_RECOMMENDED | BPC_8);
719 tc_write(DP0_MISC, (max_tu_symbol << 23) | (TU_SIZE_RECOMMENDED << 16) |
720 BPC_8);
720
721 return 0;
722err:
723 return ret;
724}
725
726static int tc_link_training(struct tc_data *tc, int pattern)
727{

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722 return 0;
723err:
724 return ret;
725}
726
727static int tc_link_training(struct tc_data *tc, int pattern)
728{

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