diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/ti/sn65dsi86bridge/Kconfig | 7 | ||||
| -rw-r--r-- | src/drivers/ti/sn65dsi86bridge/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.c | 514 | ||||
| -rw-r--r-- | src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.h | 22 | ||||
| -rw-r--r-- | src/mainboard/google/trogdor/Kconfig | 1 |
5 files changed, 547 insertions, 0 deletions
diff --git a/src/drivers/ti/sn65dsi86bridge/Kconfig b/src/drivers/ti/sn65dsi86bridge/Kconfig new file mode 100644 index 0000000000..b7abb34231 --- /dev/null +++ b/src/drivers/ti/sn65dsi86bridge/Kconfig @@ -0,0 +1,7 @@ +## SPDX-License-Identifier: GPL-2.0-only + +config DRIVERS_TI_SN65DSI86BRIDGE + bool + default n + help + TI SN65DSI86 eDP bridge driver diff --git a/src/drivers/ti/sn65dsi86bridge/Makefile.inc b/src/drivers/ti/sn65dsi86bridge/Makefile.inc new file mode 100644 index 0000000000..b146fe363c --- /dev/null +++ b/src/drivers/ti/sn65dsi86bridge/Makefile.inc @@ -0,0 +1,3 @@ +## SPDX-License-Identifier: GPL-2.0-only + +ramstage-$(CONFIG_DRIVERS_TI_SN65DSI86BRIDGE) += sn65dsi86bridge.c diff --git a/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.c b/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.c new file mode 100644 index 0000000000..e0058c4fe7 --- /dev/null +++ b/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.c @@ -0,0 +1,514 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <delay.h> +#include <endian.h> +#include <device/i2c_simple.h> +#include <edid.h> +#include <timer.h> +#include <types.h> +#include <soc/addressmap.h> +#include "sn65dsi86bridge.h" + +#define BRIDGE_GETHIGHERBYTE(x) (uint8_t)((x & 0xff00) >> 8) +#define BRIDGE_GETLOWERBYTE(x) (uint8_t)((x & 0x00ff)) + +/* fudge factor required to account for 8b/10b encoding */ +#define DP_CLK_FUDGE_NUM 10 +#define DP_CLK_FUDGE_DEN 8 + +/* DPCD */ +#define DP_BRIDGE_DPCD_REV 0x700 +#define DP_BRIDGE_11 0x00 +#define DP_BRIDGE_12 0x01 +#define DP_BRIDGE_13 0x02 +#define DP_BRIDGE_14 0x03 +#define DP_BRIDGE_CONFIGURATION_SET 0x10a +#define DP_MAX_LINK_RATE 0x001 +#define DP_MAX_LANE_COUNT 0x002 +#define DP_SUPPORTED_LINK_RATES 0x010 /* eDP 1.4 */ +#define DP_MAX_LINK_RATE 0x001 +#define DP_MAX_SUPPORTED_RATES 8 /* 16-bit little-endian */ +#define DP_LANE_COUNT_MASK 0xf + +/* link configuration */ +#define DP_LINK_BW_SET 0x100 +#define DP_LINK_BW_1_62 0x06 +#define DP_LINK_BW_2_7 0x0a +#define DP_LINK_BW_5_4 0x14 + +#define AUX_CMD_SEND 0x1 +#define MIN_DSI_CLK_FREQ_MHZ 40 +#define MAX_DSI_CLK_FREQ_MHZ 750 + +enum bridge_regs { + SN_DPPLL_SRC_REG = 0x0A, + SN_PLL_ENABLE_REG = 0x0D, + SN_DSI_LANES_REG = 0x10, + SN_DSIA_CLK_FREQ_REG = 0x12, + SN_CHA_ACTIVE_LINE_LENGTH_LOW_REG = 0x20, + SN_CHA_ACTIVE_LINE_LENGTH_HIGH_REG = 0x21, + SN_CHA_VERTICAL_DISPLAY_SIZE_LOW_REG = 0x24, + SN_CHA_VERTICAL_DISPLAY_SIZE_HIGH_REG = 0x25, + SN_CHA_HSYNC_PULSE_WIDTH_LOW_REG = 0x2C, + SN_CHA_HSYNC_PULSE_WIDTH_HIGH_REG = 0x2D, + SN_CHA_VSYNC_PULSE_WIDTH_LOW_REG = 0x30, + SN_CHA_VSYNC_PULSE_WIDTH_HIGH_REG = 0x31, + SN_CHA_HORIZONTAL_BACK_PORCH_REG = 0x34, + SN_CHA_VERTICAL_BACK_PORCH_REG = 0x36, + SN_CHA_HORIZONTAL_FRONT_PORCH_REG = 0x38, + SN_CHA_VERTICAL_FRONT_PORCH_REG = 0x3A, + SN_COLOR_BAR_REG = 0x3C, + SN_ENH_FRAME_REG = 0x5A, + SN_DATA_FORMAT_REG = 0x5B, + SN_HPD_DISABLE_REG = 0x5C, + SN_I2C_CLAIM_ADDR_EN1 = 0x60, + SN_AUX_WDATA_REG_0 = 0x64, + SN_AUX_WDATA_REG_1 = 0x65, + SN_AUX_WDATA_REG_2 = 0x66, + SN_AUX_WDATA_REG_3 = 0x67, + SN_AUX_WDATA_REG_4 = 0x68, + SN_AUX_WDATA_REG_5 = 0x69, + SN_AUX_WDATA_REG_6 = 0x6A, + SN_AUX_WDATA_REG_7 = 0x6B, + SN_AUX_WDATA_REG_8 = 0x6C, + SN_AUX_WDATA_REG_9 = 0x6D, + SN_AUX_WDATA_REG_10 = 0x6E, + SN_AUX_WDATA_REG_11 = 0x6F, + SN_AUX_WDATA_REG_12 = 0x70, + SN_AUX_WDATA_REG_13 = 0x71, + SN_AUX_WDATA_REG_14 = 0x72, + SN_AUX_WDATA_REG_15 = 0x73, + SN_AUX_ADDR_19_16_REG = 0x74, + SN_AUX_ADDR_15_8_REG = 0x75, + SN_AUX_ADDR_7_0_REG = 0x76, + SN_AUX_LENGTH_REG = 0x77, + SN_AUX_CMD_REG = 0x78, + SN_AUX_RDATA_REG_0 = 0x79, + SN_AUX_RDATA_REG_1 = 0x7A, + SN_AUX_RDATA_REG_2 = 0x7B, + SN_AUX_RDATA_REG_3 = 0x7C, + SN_AUX_RDATA_REG_4 = 0x7D, + SN_AUX_RDATA_REG_5 = 0x7E, + SN_AUX_RDATA_REG_6 = 0x7F, + SN_AUX_RDATA_REG_7 = 0x80, + SN_AUX_RDATA_REG_8 = 0x81, + SN_AUX_RDATA_REG_9 = 0x82, + SN_AUX_RDATA_REG_10 = 0x83, + SN_AUX_RDATA_REG_11 = 0x84, + SN_AUX_RDATA_REG_12 = 0x85, + SN_AUX_RDATA_REG_13 = 0x86, + SN_AUX_RDATA_REG_14 = 0x87, + SN_AUX_RDATA_REG_15 = 0x88, + SN_SSC_CONFIG_REG = 0x93, + SN_DATARATE_CONFIG_REG = 0x94, + SN_ML_TX_MODE_REG = 0x96, + SN_AUX_CMD_STATUS_REG = 0xF4, +}; + +enum { + HPD_ENABLE = 0x0, + HPD_DISABLE = 0x1, +}; + +enum { + SOT_ERR_TOL_DSI = 0x0, + CHB_DSI_LANES = 0x1, + CHA_DSI_LANES = 0x2, + DSI_CHANNEL_MODE = 0x3, + LEFT_RIGHT_PIXELS = 0x4, +}; + +enum vstream_config { + VSTREAM_DISABLE = 0, + VSTREAM_ENABLE = 1, +}; + +enum i2c_over_aux { + I2C_OVER_AUX_WRITE_MOT_0 = 0x0, + I2C_OVER_AUX_READ_MOT_0 = 0x1, + I2C_OVER_AUX_WRITE_STATUS_UPDATE_0 = 0x4, + I2C_OVER_AUX_WRITE_MOT_1 = 0x5, + I2C_OVER_AUX_READ_MOT_1 = 0x6, + I2C_OVER_AUX_WRITE_STATUS_UPDATE_1 = 0x7, + NATIVE_AUX_WRITE = 0x8, + NATIVE_AUX_READ = 0x9, +}; + +enum ml_tx_mode { + MAIN_LINK_OFF = 0x0, + NORMAL_MODE = 0x1, + TPS1 = 0x2, + TPS2 = 0x3, + TPS3 = 0x4, + PRBS7 = 0x5, + HBR2_COMPLIANCE_EYE_PATTERN = 0x6, + SYMBOL_ERR_RATE_MEASUREMENT_PATTERN = 0x7, + CUTSOM_PATTERN = 0x8, + FAST_LINK_TRAINING = 0x9, + SEMI_AUTO_LINK_TRAINING = 0xa, + REDRIVER_SEMI_AUTO_LINK_TRAINING = 0xb, +}; + +enum dpcd_request { + DPCD_READ = 0x0, + DPCD_WRITE = 0x1, +}; + +enum { + EDID_LENGTH = 128, + EDID_I2C_ADDR = 0x50, + EDID_EXTENSION_FLAG = 0x7e, +}; + +/* + * LUT index corresponds to register value and LUT values corresponds + * to dp data rate supported by the bridge in Mbps unit. + */ +static const unsigned int sn65dsi86_bridge_dp_rate_lut[] = { + 0, 1620, 2160, 2430, 2700, 3240, 4320, 5400 +}; + +enum cb_err sn65dsi86_bridge_read_edid(uint8_t bus, uint8_t chip, struct edid *out) +{ + int ret; + u8 edid[EDID_LENGTH * 2]; + int edid_size = EDID_LENGTH; + + /* Send I2C command to claim EDID I2c slave */ + i2c_writeb(bus, chip, SN_I2C_CLAIM_ADDR_EN1, (EDID_I2C_ADDR << 1) | 0x1); + + /* read EDID */ + ret = i2c_read_bytes(bus, EDID_I2C_ADDR, 0x0, edid, EDID_LENGTH); + if (ret != 0) { + printk(BIOS_ERR, "ERROR: Failed to read EDID.\n"); + return CB_ERR; + } + + if (edid[EDID_EXTENSION_FLAG]) { + edid_size += EDID_LENGTH; + ret = i2c_read_bytes(bus, EDID_I2C_ADDR, EDID_LENGTH, + &edid[EDID_LENGTH], EDID_LENGTH); + if (ret != 0) { + printk(BIOS_ERR, "Failed to read EDID ext block.\n"); + return CB_ERR; + } + } + + if (decode_edid(edid, edid_size, out) != EDID_CONFORMANT) { + printk(BIOS_ERR, "ERROR: Failed to decode EDID.\n"); + return CB_ERR; + } + + return CB_SUCCESS; +} + +static void sn65dsi86_bridge_dpcd_request(uint8_t bus, + uint8_t chip, + unsigned int dpcd_reg, + unsigned int len, + enum dpcd_request request, + uint8_t *data) +{ + int i; + uint32_t length; + uint8_t buf; + uint8_t reg; + + while (len) { + length = MIN(len, 16); + + i2c_writeb(bus, chip, SN_AUX_ADDR_19_16_REG, (dpcd_reg >> 16) & 0xF); + i2c_writeb(bus, chip, SN_AUX_ADDR_15_8_REG, (dpcd_reg >> 8) & 0xFF); + i2c_writeb(bus, chip, SN_AUX_ADDR_7_0_REG, (dpcd_reg) & 0xFF); + i2c_writeb(bus, chip, SN_AUX_LENGTH_REG, length); /* size of 1 Byte data */ + if (request == DPCD_WRITE) { + reg = SN_AUX_WDATA_REG_0; + for (i = 0; i < length; i++) + i2c_writeb(bus, chip, reg++, *data++); + + i2c_writeb(bus, chip, + SN_AUX_CMD_REG, AUX_CMD_SEND | (NATIVE_AUX_WRITE << 4)); + } else { + i2c_writeb(bus, chip, + SN_AUX_CMD_REG, AUX_CMD_SEND | (NATIVE_AUX_READ << 4)); + if (!wait_ms(100, + !i2c_readb(bus, chip, SN_AUX_CMD_REG, + &buf) && !(buf & AUX_CMD_SEND))) { + printk(BIOS_ERR, "ERROR: aux command send failed\n"); + } + + reg = SN_AUX_RDATA_REG_0; + for (i = 0; i < length; i++) { + i2c_readb(bus, chip, reg++, &buf); + *data++ = buf; + } + } + + len -= length; + } +} + +static void sn65dsi86_bridge_valid_dp_rates(uint8_t bus, uint8_t chip, bool rate_valid[]) +{ + unsigned int rate_per_200khz; + uint8_t dpcd_val; + int i, j; + + sn65dsi86_bridge_dpcd_request(bus, chip, + DP_BRIDGE_DPCD_REV, 1, DPCD_READ, &dpcd_val); + if (dpcd_val >= DP_BRIDGE_14) { + /* eDP 1.4 devices must provide a custom table */ + uint8_t sink_rates[DP_MAX_SUPPORTED_RATES * 2]; + + sn65dsi86_bridge_dpcd_request(bus, chip, DP_SUPPORTED_LINK_RATES, + sizeof(sink_rates), + DPCD_READ, sink_rates); + for (i = 0; i < ARRAY_SIZE(sink_rates); i++) { + rate_per_200khz = le16_to_cpu(sink_rates[i]); + + if (!rate_per_200khz) + break; + + for (j = 0; + j < ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut); + j++) { + if (sn65dsi86_bridge_dp_rate_lut[j] * (MHz / KHz) == + rate_per_200khz * 200) + rate_valid[j] = true; + } + } + + for (i = 0; i < ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut); i++) { + if (rate_valid[i]) + return; + } + + printk(BIOS_ERR, "No matching eDP rates in table; falling back\n"); + } + + /* On older versions best we can do is use DP_MAX_LINK_RATE */ + sn65dsi86_bridge_dpcd_request(bus, chip, + DP_MAX_LINK_RATE, 1, DPCD_READ, &dpcd_val); + + switch (dpcd_val) { + default: + printk(BIOS_ERR, + "Unexpected max rate (%#x); assuming 5.4 GHz\n", + (int)dpcd_val); + /* fall through */ + case DP_LINK_BW_5_4: + rate_valid[7] = 1; + /* fall through */ + case DP_LINK_BW_2_7: + rate_valid[4] = 1; + /* fall through */ + case DP_LINK_BW_1_62: + rate_valid[1] = 1; + break; + } +} + +static void sn65dsi86_bridge_set_dsi_clock_range(uint8_t bus, uint8_t chip, + struct edid *edid, + uint32_t num_of_lanes, uint32_t bpp) +{ + uint64_t pixel_clk_hz; + uint64_t stream_bit_rate_mhz; + uint64_t min_req_dsi_clk; + + pixel_clk_hz = edid->mode.pixel_clock * KHz; + stream_bit_rate_mhz = (pixel_clk_hz * bpp) / MHz; + + /* For TI the clock frequencies are half the bit rates */ + min_req_dsi_clk = stream_bit_rate_mhz / (num_of_lanes * 2); + + /* for each increment in val, frequency increases by 5MHz */ + min_req_dsi_clk = MAX(MIN_DSI_CLK_FREQ_MHZ, + MIN(MAX_DSI_CLK_FREQ_MHZ, min_req_dsi_clk)) / 5; + i2c_writeb(bus, chip, SN_DSIA_CLK_FREQ_REG, min_req_dsi_clk); +} + +static void sn65dsi86_bridge_set_dp_clock_range(uint8_t bus, uint8_t chip, + struct edid *edid, uint32_t num_of_lanes) +{ + uint64_t stream_bit_rate_khz; + bool rate_valid[ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut)] = { }; + uint64_t dp_rate_mhz; + int dp_rate_idx, i; + + stream_bit_rate_khz = edid->mode.pixel_clock * 18; + + /* Calculate minimum DP data rate, taking 80% as per DP spec */ + dp_rate_mhz = DIV_ROUND_UP(stream_bit_rate_khz * DP_CLK_FUDGE_NUM, + KHz * num_of_lanes * DP_CLK_FUDGE_DEN); + + for (i = 0; i < ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut) - 1; i++) + if (sn65dsi86_bridge_dp_rate_lut[i] > dp_rate_mhz) + break; + + sn65dsi86_bridge_valid_dp_rates(bus, chip, rate_valid); + + /* Train until we run out of rates */ + for (dp_rate_idx = i; + dp_rate_idx < ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut); + dp_rate_idx++) + if (rate_valid[dp_rate_idx]) + break; + + if (dp_rate_idx < ARRAY_SIZE(sn65dsi86_bridge_dp_rate_lut)) + i2c_write_field(bus, chip, SN_DATARATE_CONFIG_REG, dp_rate_idx, 8, 5); + else + printk(BIOS_ERR, "ERROR: valid dp rate not found"); +} + +static void sn65dsi86_bridge_set_bridge_active_timing(uint8_t bus, + uint8_t chip, + struct edid *edid) +{ + i2c_writeb(bus, chip, SN_CHA_ACTIVE_LINE_LENGTH_LOW_REG, + BRIDGE_GETLOWERBYTE(edid->mode.ha)); + i2c_writeb(bus, chip, SN_CHA_ACTIVE_LINE_LENGTH_HIGH_REG, + BRIDGE_GETHIGHERBYTE(edid->mode.ha)); + i2c_writeb(bus, chip, SN_CHA_VERTICAL_DISPLAY_SIZE_LOW_REG, + BRIDGE_GETLOWERBYTE(edid->mode.va)); + i2c_writeb(bus, chip, SN_CHA_VERTICAL_DISPLAY_SIZE_HIGH_REG, + BRIDGE_GETHIGHERBYTE(edid->mode.va)); + i2c_writeb(bus, chip, SN_CHA_HSYNC_PULSE_WIDTH_LOW_REG, + BRIDGE_GETLOWERBYTE(edid->mode.hspw)); + i2c_writeb(bus, chip, SN_CHA_HSYNC_PULSE_WIDTH_HIGH_REG, + BRIDGE_GETHIGHERBYTE(edid->mode.hspw)); + i2c_writeb(bus, chip, SN_CHA_VSYNC_PULSE_WIDTH_LOW_REG, + BRIDGE_GETLOWERBYTE(edid->mode.vspw)); + i2c_writeb(bus, chip, SN_CHA_VSYNC_PULSE_WIDTH_HIGH_REG, + BRIDGE_GETHIGHERBYTE(edid->mode.vspw)); + i2c_writeb(bus, chip, SN_CHA_HORIZONTAL_BACK_PORCH_REG, + edid->mode.hbl - edid->mode.hso - edid->mode.hspw); + i2c_writeb(bus, chip, SN_CHA_VERTICAL_BACK_PORCH_REG, + edid->mode.vbl - edid->mode.vso - edid->mode.vspw); + i2c_writeb(bus, chip, SN_CHA_HORIZONTAL_FRONT_PORCH_REG, + edid->mode.hso); + i2c_writeb(bus, chip, SN_CHA_VERTICAL_FRONT_PORCH_REG, + edid->mode.vso); +} + +static void sn65dsi86_bridge_link_training(uint8_t bus, uint8_t chip) +{ + uint8_t buf; + + /* enable pll lock */ + i2c_writeb(bus, chip, SN_PLL_ENABLE_REG, 0x1); + + if (!wait_ms(500, + !(i2c_readb(bus, chip, SN_DPPLL_SRC_REG, &buf)) && + (buf & BIT(7)))) { + printk(BIOS_ERR, "ERROR: PLL lock failure\n"); + } + + /* + * The SN65DSI86 only supports ASSR Display Authentication method and + * this method is enabled by default. An eDP panel must support this + * authentication method. We need to enable this method in the eDP panel + * at DisplayPort address 0x0010A prior to link training. + */ + buf = 0x1; + sn65dsi86_bridge_dpcd_request(bus, chip, + DP_BRIDGE_CONFIGURATION_SET, 1, DPCD_WRITE, &buf); + + /* semi auto link training mode */ + i2c_writeb(bus, chip, SN_ML_TX_MODE_REG, 0xa); + + if (!wait_ms(500, + !(i2c_readb(bus, chip, SN_ML_TX_MODE_REG, &buf)) && + (buf & NORMAL_MODE))) { + printk(BIOS_ERR, "ERROR: Link training failed"); + } + +} + +static enum cb_err sn65dsi86_bridge_get_plug_in_status(uint8_t bus, uint8_t chip) +{ + int val; + uint8_t buf; + + val = i2c_readb(bus, chip, SN_HPD_DISABLE_REG, &buf); + if (val == 0 && (buf & HPD_DISABLE)) + return CB_SUCCESS; + + return CB_ERR; +} + +/* + * support bridge HPD function some hardware versions do not support bridge hdp, + * we use 360ms to try to get the hpd single now, if we can not get bridge hpd single, + * it will delay 360ms, also meet the bridge power timing request, to be compatible + * all of the hardware versions + */ +static void sn65dsi86_bridge_wait_hpd(uint8_t bus, uint8_t chip) +{ + if (wait_ms(400, sn65dsi86_bridge_get_plug_in_status(bus, chip))) + return; + + printk(BIOS_WARNING, "HPD detection failed, force hpd\n"); + + /* Force HPD */ + i2c_write_field(bus, chip, SN_HPD_DISABLE_REG, HPD_DISABLE, 1, 0); +} + +static void sn65dsi86_bridge_assr_config(uint8_t bus, uint8_t chip, int enable) +{ + if (enable) + i2c_write_field(bus, chip, SN_ENH_FRAME_REG, VSTREAM_ENABLE, 1, 3); + else + i2c_write_field(bus, chip, SN_ENH_FRAME_REG, VSTREAM_DISABLE, 1, 3); +} + +static int sn65dsi86_bridge_dp_lane_config(uint8_t bus, uint8_t chip) +{ + uint8_t lane_count; + + sn65dsi86_bridge_dpcd_request(bus, chip, DP_MAX_LANE_COUNT, 1, DPCD_READ, &lane_count); + lane_count &= DP_LANE_COUNT_MASK; + i2c_write_field(bus, chip, SN_SSC_CONFIG_REG, MIN(lane_count, 3), 3, 4); + + return lane_count; +} + +void sn65dsi86_bridge_init(uint8_t bus, uint8_t chip, enum dp_pll_clk_src ref_clk) +{ + sn65dsi86_bridge_wait_hpd(bus, chip); + + /* set refclk to 19.2 MHZ */ + i2c_write_field(bus, chip, SN_DPPLL_SRC_REG, ref_clk, 7, 1); +} + +void sn65dsi86_bridge_configure(uint8_t bus, uint8_t chip, + struct edid *edid, uint32_t num_of_lanes, + uint32_t dsi_bpp) +{ + int dp_lanes; + + /* DSI Lanes config */ + i2c_write_field(bus, chip, SN_DSI_LANES_REG, (4 - num_of_lanes), 3, 3); + + /* DP Lane config */ + dp_lanes = sn65dsi86_bridge_dp_lane_config(bus, chip); + + sn65dsi86_bridge_set_dsi_clock_range(bus, chip, edid, num_of_lanes, dsi_bpp); + + sn65dsi86_bridge_set_dp_clock_range(bus, chip, edid, dp_lanes); + + /* Disable vstream */ + sn65dsi86_bridge_assr_config(bus, chip, 0); + sn65dsi86_bridge_link_training(bus, chip); + sn65dsi86_bridge_set_bridge_active_timing(bus, chip, edid); + + /* DP BPP config */ + i2c_writeb(bus, chip, SN_DATA_FORMAT_REG, 0x1); + + /* color bar disabled */ + i2c_writeb(bus, chip, SN_COLOR_BAR_REG, 0x5); + + /* Enable vstream */ + sn65dsi86_bridge_assr_config(bus, chip, 1); +} diff --git a/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.h b/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.h new file mode 100644 index 0000000000..83b940bbb4 --- /dev/null +++ b/src/drivers/ti/sn65dsi86bridge/sn65dsi86bridge.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __TI_SN65DSI86BRIDGE_H +#define __TI_SN65DSI86BRIDGE_H + +#include <edid.h> + +enum dp_pll_clk_src { + SN65_SEL_12MHZ = 0x0, + SN65_SEL_19MHZ = 0x1, + SN65_SEL_26MHZ = 0x2, + SN65_SEL_27MHZ = 0x3, + SN65_SEL_38MHZ = 0x4, +}; + +void sn65dsi86_bridge_init(uint8_t bus, uint8_t chip, enum dp_pll_clk_src ref_clk); +void sn65dsi86_bridge_configure(uint8_t bus, uint8_t chip, + struct edid *edid, uint32_t num_of_lines, + uint32_t dsi_bpp); +enum cb_err sn65dsi86_bridge_read_edid(uint8_t bus, uint8_t chip, struct edid *out); + +#endif diff --git a/src/mainboard/google/trogdor/Kconfig b/src/mainboard/google/trogdor/Kconfig index 6a0f912c00..e0f071cecf 100644 --- a/src/mainboard/google/trogdor/Kconfig +++ b/src/mainboard/google/trogdor/Kconfig @@ -17,6 +17,7 @@ config BOARD_SPECIFIC_OPTIONS select EC_GOOGLE_CHROMEEC_SPI if !BOARD_GOOGLE_BUBS select RTC if !BOARD_GOOGLE_BUBS select MISSING_BOARD_RESET if BOARD_GOOGLE_BUBS + select DRIVERS_TI_SN65DSI86BRIDGE select SOC_QUALCOMM_SC7180 select SPI_FLASH select SPI_FLASH_WINBOND |