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linuxdebug/drivers/gpu/drm/vc4/vc4_hdmi_phy.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015 Broadcom
* Copyright (c) 2014 The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#include "vc4_hdmi.h"
#include "vc4_regs.h"
#include "vc4_hdmi_regs.h"
#define VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB BIT(5)
#define VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB BIT(4)
#define VC4_HDMI_TX_PHY_RESET_CTL_TX_CK_RESET BIT(3)
#define VC4_HDMI_TX_PHY_RESET_CTL_TX_2_RESET BIT(2)
#define VC4_HDMI_TX_PHY_RESET_CTL_TX_1_RESET BIT(1)
#define VC4_HDMI_TX_PHY_RESET_CTL_TX_0_RESET BIT(0)
#define VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN BIT(4)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP_SHIFT 29
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP_MASK VC4_MASK(31, 29)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV_SHIFT 24
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV_MASK VC4_MASK(28, 24)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP_SHIFT 21
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP_MASK VC4_MASK(23, 21)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV_SHIFT 16
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV_MASK VC4_MASK(20, 16)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP_SHIFT 13
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP_MASK VC4_MASK(15, 13)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV_SHIFT 8
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV_MASK VC4_MASK(12, 8)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP_SHIFT 5
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP_MASK VC4_MASK(7, 5)
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV_SHIFT 0
#define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV_MASK VC4_MASK(4, 0)
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2_SHIFT 15
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2_MASK VC4_MASK(19, 15)
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1_SHIFT 10
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1_MASK VC4_MASK(14, 10)
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0_SHIFT 5
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0_MASK VC4_MASK(9, 5)
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK_SHIFT 0
#define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK_MASK VC4_MASK(4, 0)
#define VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN_SHIFT 16
#define VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN_MASK VC4_MASK(19, 16)
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2_SHIFT 12
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2_MASK VC4_MASK(15, 12)
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1_SHIFT 8
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1_MASK VC4_MASK(11, 8)
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0_SHIFT 4
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0_MASK VC4_MASK(7, 4)
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK_SHIFT 0
#define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK_MASK VC4_MASK(3, 0)
#define VC4_HDMI_TX_PHY_CTL_3_RP_SHIFT 17
#define VC4_HDMI_TX_PHY_CTL_3_RP_MASK VC4_MASK(19, 17)
#define VC4_HDMI_TX_PHY_CTL_3_RZ_SHIFT 12
#define VC4_HDMI_TX_PHY_CTL_3_RZ_MASK VC4_MASK(16, 12)
#define VC4_HDMI_TX_PHY_CTL_3_CP1_SHIFT 10
#define VC4_HDMI_TX_PHY_CTL_3_CP1_MASK VC4_MASK(11, 10)
#define VC4_HDMI_TX_PHY_CTL_3_CP_SHIFT 8
#define VC4_HDMI_TX_PHY_CTL_3_CP_MASK VC4_MASK(9, 8)
#define VC4_HDMI_TX_PHY_CTL_3_CZ_SHIFT 6
#define VC4_HDMI_TX_PHY_CTL_3_CZ_MASK VC4_MASK(7, 6)
#define VC4_HDMI_TX_PHY_CTL_3_ICP_SHIFT 0
#define VC4_HDMI_TX_PHY_CTL_3_ICP_MASK VC4_MASK(5, 0)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_MASH11_MODE BIT(13)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VC_RANGE_EN BIT(12)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_EMULATE_VC_LOW BIT(11)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_EMULATE_VC_HIGH BIT(10)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL_SHIFT 9
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL_MASK VC4_MASK(9, 9)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_FB_DIV2 BIT(8)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_POST_DIV2 BIT(7)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_CONT_EN BIT(6)
#define VC4_HDMI_TX_PHY_PLL_CTL_0_ENA_VCO_CLK BIT(5)
#define VC4_HDMI_TX_PHY_PLL_CTL_1_CPP_SHIFT 16
#define VC4_HDMI_TX_PHY_PLL_CTL_1_CPP_MASK VC4_MASK(27, 16)
#define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY_SHIFT 14
#define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY_MASK VC4_MASK(15, 14)
#define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_ENABLE BIT(13)
#define VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL_SHIFT 11
#define VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL_MASK VC4_MASK(12, 11)
#define VC4_HDMI_TX_PHY_CLK_DIV_VCO_SHIFT 8
#define VC4_HDMI_TX_PHY_CLK_DIV_VCO_MASK VC4_MASK(15, 8)
#define VC4_HDMI_TX_PHY_PLL_CFG_PDIV_SHIFT 0
#define VC4_HDMI_TX_PHY_PLL_CFG_PDIV_MASK VC4_MASK(3, 0)
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL_MASK VC4_MASK(13, 12)
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL_SHIFT 12
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL_MASK VC4_MASK(9, 8)
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL_SHIFT 8
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL_MASK VC4_MASK(5, 4)
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL_SHIFT 4
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL_MASK VC4_MASK(1, 0)
#define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL_SHIFT 0
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_MASK VC4_MASK(27, 0)
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_SHIFT 0
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_MASK VC4_MASK(27, 0)
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_SHIFT 0
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD_MASK VC4_MASK(31, 16)
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD_SHIFT 16
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD_MASK VC4_MASK(15, 0)
#define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD_SHIFT 0
#define VC4_HDMI_RM_CONTROL_EN_FREEZE_COUNTERS BIT(19)
#define VC4_HDMI_RM_CONTROL_EN_LOAD_INTEGRATOR BIT(17)
#define VC4_HDMI_RM_CONTROL_FREE_RUN BIT(4)
#define VC4_HDMI_RM_OFFSET_ONLY BIT(31)
#define VC4_HDMI_RM_OFFSET_OFFSET_SHIFT 0
#define VC4_HDMI_RM_OFFSET_OFFSET_MASK VC4_MASK(30, 0)
#define VC4_HDMI_RM_FORMAT_SHIFT_SHIFT 24
#define VC4_HDMI_RM_FORMAT_SHIFT_MASK VC4_MASK(25, 24)
#define OSCILLATOR_FREQUENCY 54000000
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct vc4_hdmi_connector_state *conn_state)
{
unsigned long flags;
/* PHY should be in reset, like
* vc4_hdmi_encoder_disable() does.
*/
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_CTL_0,
HDMI_READ(HDMI_TX_PHY_CTL_0) &
~VC4_HDMI_TX_PHY_RNG_PWRDN);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_CTL_0,
HDMI_READ(HDMI_TX_PHY_CTL_0) |
VC4_HDMI_TX_PHY_RNG_PWRDN);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
static unsigned long long
phy_get_vco_freq(unsigned long long clock, u8 *vco_sel, u8 *vco_div)
{
unsigned long long vco_freq = clock;
unsigned int _vco_div = 0;
unsigned int _vco_sel = 0;
while (vco_freq < 3000000000ULL) {
_vco_div++;
vco_freq = clock * _vco_div * 10;
}
if (vco_freq > 4500000000ULL)
_vco_sel = 1;
*vco_sel = _vco_sel;
*vco_div = _vco_div;
return vco_freq;
}
static u8 phy_get_cp_current(unsigned long vco_freq)
{
if (vco_freq < 3700000000ULL)
return 0x1c;
return 0x18;
}
static u32 phy_get_rm_offset(unsigned long long vco_freq)
{
unsigned long long fref = OSCILLATOR_FREQUENCY;
u64 offset = 0;
/* RM offset is stored as 9.22 format */
offset = vco_freq * 2;
offset = offset << 22;
do_div(offset, fref);
offset >>= 2;
return offset;
}
static u8 phy_get_vco_gain(unsigned long long vco_freq)
{
if (vco_freq < 3350000000ULL)
return 0xf;
if (vco_freq < 3700000000ULL)
return 0xc;
if (vco_freq < 4050000000ULL)
return 0x6;
if (vco_freq < 4800000000ULL)
return 0x5;
if (vco_freq < 5200000000ULL)
return 0x7;
return 0x2;
}
struct phy_lane_settings {
struct {
u8 preemphasis;
u8 main_driver;
} amplitude;
u8 res_sel_data;
u8 term_res_sel_data;
};
struct phy_settings {
unsigned long long min_rate;
unsigned long long max_rate;
struct phy_lane_settings channel[3];
struct phy_lane_settings clock;
};
static const struct phy_settings vc5_hdmi_phy_settings[] = {
{
0, 50000000,
{
{{0x0, 0x0A}, 0x12, 0x0},
{{0x0, 0x0A}, 0x12, 0x0},
{{0x0, 0x0A}, 0x12, 0x0}
},
{{0x0, 0x0A}, 0x18, 0x0},
},
{
50000001, 75000000,
{
{{0x0, 0x09}, 0x12, 0x0},
{{0x0, 0x09}, 0x12, 0x0},
{{0x0, 0x09}, 0x12, 0x0}
},
{{0x0, 0x0C}, 0x18, 0x3},
},
{
75000001, 165000000,
{
{{0x0, 0x09}, 0x12, 0x0},
{{0x0, 0x09}, 0x12, 0x0},
{{0x0, 0x09}, 0x12, 0x0}
},
{{0x0, 0x0C}, 0x18, 0x3},
},
{
165000001, 250000000,
{
{{0x0, 0x0F}, 0x12, 0x1},
{{0x0, 0x0F}, 0x12, 0x1},
{{0x0, 0x0F}, 0x12, 0x1}
},
{{0x0, 0x0C}, 0x18, 0x3},
},
{
250000001, 340000000,
{
{{0x2, 0x0D}, 0x12, 0x1},
{{0x2, 0x0D}, 0x12, 0x1},
{{0x2, 0x0D}, 0x12, 0x1}
},
{{0x0, 0x0C}, 0x18, 0xF},
},
{
340000001, 450000000,
{
{{0x0, 0x1B}, 0x12, 0xF},
{{0x0, 0x1B}, 0x12, 0xF},
{{0x0, 0x1B}, 0x12, 0xF}
},
{{0x0, 0x0A}, 0x12, 0xF},
},
{
450000001, 600000000,
{
{{0x0, 0x1C}, 0x12, 0xF},
{{0x0, 0x1C}, 0x12, 0xF},
{{0x0, 0x1C}, 0x12, 0xF}
},
{{0x0, 0x0B}, 0x13, 0xF},
},
};
static const struct phy_settings *phy_get_settings(unsigned long long tmds_rate)
{
unsigned int count = ARRAY_SIZE(vc5_hdmi_phy_settings);
unsigned int i;
for (i = 0; i < count; i++) {
const struct phy_settings *s = &vc5_hdmi_phy_settings[i];
if (tmds_rate >= s->min_rate && tmds_rate <= s->max_rate)
return s;
}
/*
* If the pixel clock exceeds our max setting, try the max
* setting anyway.
*/
return &vc5_hdmi_phy_settings[count - 1];
}
static const struct phy_lane_settings *
phy_get_channel_settings(enum vc4_hdmi_phy_channel chan,
unsigned long long tmds_rate)
{
const struct phy_settings *settings = phy_get_settings(tmds_rate);
if (chan == PHY_LANE_CK)
return &settings->clock;
return &settings->channel[chan];
}
static void vc5_hdmi_reset_phy(struct vc4_hdmi *vc4_hdmi)
{
lockdep_assert_held(&vc4_hdmi->hw_lock);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0x0f);
HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, BIT(10));
}
void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
struct vc4_hdmi_connector_state *conn_state)
{
const struct phy_lane_settings *chan0_settings, *chan1_settings, *chan2_settings, *clock_settings;
const struct vc4_hdmi_variant *variant = vc4_hdmi->variant;
unsigned long long pixel_freq = conn_state->tmds_char_rate;
unsigned long long vco_freq;
unsigned char word_sel;
unsigned long flags;
u8 vco_sel, vco_div;
vco_freq = phy_get_vco_freq(pixel_freq, &vco_sel, &vco_div);
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
vc5_hdmi_reset_phy(vc4_hdmi);
HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL,
VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL,
HDMI_READ(HDMI_TX_PHY_RESET_CTL) &
~VC4_HDMI_TX_PHY_RESET_CTL_TX_0_RESET &
~VC4_HDMI_TX_PHY_RESET_CTL_TX_1_RESET &
~VC4_HDMI_TX_PHY_RESET_CTL_TX_2_RESET &
~VC4_HDMI_TX_PHY_RESET_CTL_TX_CK_RESET);
HDMI_WRITE(HDMI_RM_CONTROL,
HDMI_READ(HDMI_RM_CONTROL) |
VC4_HDMI_RM_CONTROL_EN_FREEZE_COUNTERS |
VC4_HDMI_RM_CONTROL_EN_LOAD_INTEGRATOR |
VC4_HDMI_RM_CONTROL_FREE_RUN);
HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1,
(HDMI_READ(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1) &
~VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_MASK) |
VC4_SET_FIELD(0, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT));
HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2,
(HDMI_READ(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2) &
~VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_MASK) |
VC4_SET_FIELD(0, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT));
HDMI_WRITE(HDMI_RM_OFFSET,
VC4_SET_FIELD(phy_get_rm_offset(vco_freq),
VC4_HDMI_RM_OFFSET_OFFSET) |
VC4_HDMI_RM_OFFSET_ONLY);
HDMI_WRITE(HDMI_TX_PHY_CLK_DIV,
VC4_SET_FIELD(vco_div, VC4_HDMI_TX_PHY_CLK_DIV_VCO));
HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4,
VC4_SET_FIELD(0xe147, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD) |
VC4_SET_FIELD(0xe14, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD));
HDMI_WRITE(HDMI_TX_PHY_PLL_CTL_0,
VC4_HDMI_TX_PHY_PLL_CTL_0_ENA_VCO_CLK |
VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_CONT_EN |
VC4_HDMI_TX_PHY_PLL_CTL_0_MASH11_MODE |
VC4_SET_FIELD(vco_sel, VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL));
HDMI_WRITE(HDMI_TX_PHY_PLL_CTL_1,
HDMI_READ(HDMI_TX_PHY_PLL_CTL_1) |
VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_ENABLE |
VC4_SET_FIELD(3, VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL) |
VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY) |
VC4_SET_FIELD(0x8a, VC4_HDMI_TX_PHY_PLL_CTL_1_CPP));
HDMI_WRITE(HDMI_RM_FORMAT,
HDMI_READ(HDMI_RM_FORMAT) |
VC4_SET_FIELD(2, VC4_HDMI_RM_FORMAT_SHIFT));
HDMI_WRITE(HDMI_TX_PHY_PLL_CFG,
HDMI_READ(HDMI_TX_PHY_PLL_CFG) |
VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_PLL_CFG_PDIV));
if (pixel_freq >= 340000000)
word_sel = 3;
else
word_sel = 0;
HDMI_WRITE(HDMI_TX_PHY_TMDS_CLK_WORD_SEL, word_sel);
HDMI_WRITE(HDMI_TX_PHY_CTL_3,
VC4_SET_FIELD(phy_get_cp_current(vco_freq),
VC4_HDMI_TX_PHY_CTL_3_ICP) |
VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_CTL_3_CP) |
VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_CTL_3_CP1) |
VC4_SET_FIELD(3, VC4_HDMI_TX_PHY_CTL_3_CZ) |
VC4_SET_FIELD(4, VC4_HDMI_TX_PHY_CTL_3_RP) |
VC4_SET_FIELD(6, VC4_HDMI_TX_PHY_CTL_3_RZ));
chan0_settings =
phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_0],
pixel_freq);
chan1_settings =
phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_1],
pixel_freq);
chan2_settings =
phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_2],
pixel_freq);
clock_settings =
phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_CK],
pixel_freq);
HDMI_WRITE(HDMI_TX_PHY_CTL_0,
VC4_SET_FIELD(chan0_settings->amplitude.preemphasis,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP) |
VC4_SET_FIELD(chan0_settings->amplitude.main_driver,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV) |
VC4_SET_FIELD(chan1_settings->amplitude.preemphasis,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP) |
VC4_SET_FIELD(chan1_settings->amplitude.main_driver,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV) |
VC4_SET_FIELD(chan2_settings->amplitude.preemphasis,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP) |
VC4_SET_FIELD(chan2_settings->amplitude.main_driver,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV) |
VC4_SET_FIELD(clock_settings->amplitude.preemphasis,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP) |
VC4_SET_FIELD(clock_settings->amplitude.main_driver,
VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV));
HDMI_WRITE(HDMI_TX_PHY_CTL_1,
HDMI_READ(HDMI_TX_PHY_CTL_1) |
VC4_SET_FIELD(chan0_settings->res_sel_data,
VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0) |
VC4_SET_FIELD(chan1_settings->res_sel_data,
VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1) |
VC4_SET_FIELD(chan2_settings->res_sel_data,
VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2) |
VC4_SET_FIELD(clock_settings->res_sel_data,
VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK));
HDMI_WRITE(HDMI_TX_PHY_CTL_2,
VC4_SET_FIELD(chan0_settings->term_res_sel_data,
VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0) |
VC4_SET_FIELD(chan1_settings->term_res_sel_data,
VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1) |
VC4_SET_FIELD(chan2_settings->term_res_sel_data,
VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2) |
VC4_SET_FIELD(clock_settings->term_res_sel_data,
VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK) |
VC4_SET_FIELD(phy_get_vco_gain(vco_freq),
VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN));
HDMI_WRITE(HDMI_TX_PHY_CHANNEL_SWAP,
VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_0],
VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL) |
VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_1],
VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL) |
VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_2],
VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL) |
VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_CK],
VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL));
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL,
HDMI_READ(HDMI_TX_PHY_RESET_CTL) &
~(VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB |
VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB));
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL,
HDMI_READ(HDMI_TX_PHY_RESET_CTL) |
VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB |
VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
vc5_hdmi_reset_phy(vc4_hdmi);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL,
HDMI_READ(HDMI_TX_PHY_POWERDOWN_CTL) &
~VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}
void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi)
{
unsigned long flags;
spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL,
HDMI_READ(HDMI_TX_PHY_POWERDOWN_CTL) |
VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN);
spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
}