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mb/google/corsola: Fix MIPI panel power on/off sequence 

Based on the power sequence of the panel [1] and PMIC datasheet [2],
the power on T2 sequence VSP to VSN should be large than 1ms, but it's
-159us now, and the power off T2 sequence VSP to VSN should be large
than 0ms, but it's less than 0 now. Let's modify the power sequence
to meet the datasheet requirement.

[1] HX83102-J02_Datasheet_v03.pdf
[2] TPS65132-Single-Inductor-Dual-Output-Power-Supply.pdf

BUG=b:282902297
TEST=power sequence T2 pass

Signed-off-by: Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
Change-Id: Ib1625c6a211f849071393f69eaf5c649a8e7f72e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75298
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Ruihai Zhou 2023-05-16 17:30:23 +08:00 committed by Felix Held
parent 44b60eb503
commit e811c9a44d
3 changed files with 19 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
src/mainboard/google/corsola/display.c
View File

@ -1,17 +1,13 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <assert.h>
#include <boardid.h>
#include <cbfs.h>
#include <console/console.h>
#include <delay.h>
#include <device/i2c_simple.h>
#include <edid.h>
#include <gpio.h>
#include <soc/ddp.h>
#include <soc/dsi.h>
#include <soc/gpio_common.h>
#include <soc/i2c.h>
#include <soc/mtcmos.h>
#include "display.h"
@ -25,67 +21,6 @@ static void backlight_control(void)
gpio_output(GPIO_EN_PP3300_DISP_X, 1);
}
int panel_pmic_reg_mask(unsigned int bus, uint8_t chip, uint8_t addr,
uint8_t val, uint8_t mask)
{
uint8_t msg = 0;
if (i2c_read_field(bus, chip, addr, &msg, 0xFF, 0) < 0) {
printk(BIOS_ERR, "%s: Failed to read i2c(%u): addr(%u)\n",
__func__, bus, addr);
return -1;
}
msg &= ~mask;
msg |= val;
return i2c_write_field(bus, chip, addr, msg, 0xFF, 0);
}
void tps65132s_program_eeprom(void)
{
u8 value = 0;
u8 value1 = 0;
/* Initialize I2C6 for PMIC TPS65132 */
mtk_i2c_bus_init(PMIC_TPS65132_I2C, I2C_SPEED_FAST);
mdelay(10);
/* EN_PP6000_MIPI_DISP */
gpio_output(GPIO_EN_PP3300_DISP_X, 1);
/* EN_PP6000_MIPI_DISP_150MA */
gpio_output(GPIO_EN_PP3300_SDBRDG_X, 1);
mdelay(10);
i2c_read_field(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x00, &value, 0xFF, 0);
i2c_read_field(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x01, &value1, 0xFF, 0);
if (value != 0x14 || value1 != 0x14) {
printk(BIOS_INFO, "Set AVDD AVEE 6.0V to EEPROM Data in first time\n");
/* Set AVDD = 6.0V */
if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x00, 0x14,
0x1F) < 0)
return;
/* Set AVEE = -6.0V */
if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x01, 0x14,
0x1F) < 0)
return;
/* Set EEPROM Data */
if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0xFF, 0x80,
0xFC) < 0)
return;
mdelay(50);
}
/* EN_PP6000_MIPI_DISP */
gpio_output(GPIO_EN_PP3300_DISP_X, 0);
/* EN_PP6000_MIPI_DISP_150MA */
gpio_output(GPIO_EN_PP3300_SDBRDG_X, 0);
mdelay(5);
}
struct panel_description *get_panel_from_cbfs(struct panel_description *desc)
{
char cbfs_name[64];

4
src/mainboard/google/corsola/display.h
View File

@ -9,7 +9,6 @@
#define BRIDGE_I2C I2C0
#define PMIC_TPS65132_I2C I2C6
#define PMIC_TPS65132_SLAVE 0x3E
struct panel_description {
void (*power_on)(void); /* Callback to turn on panel */
@ -34,7 +33,4 @@ struct panel_description *get_ps8640_description(void);
/* Load panel serializable data from CBFS */
struct panel_description *get_panel_from_cbfs(struct panel_description *desc);
void tps65132s_program_eeprom(void);
int panel_pmic_reg_mask(u32 bus, u8 chip, u8 addr, u8 val, u8 mask);
#endif

24
src/mainboard/google/corsola/panel_starmie.c
View File

@ -1,20 +1,34 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <delay.h>
#include <gpio.h>
#include <soc/regulator.h>
#include <soc/tps65132s.h>
#include "display.h"
#include "gpio.h"
static void mipi_panel_power_on(void)
{
tps65132s_program_eeprom();
const struct tps65132s_reg_setting reg_settings[] = {
{ PMIC_TPS65132_VPOS, 0x14, 0x1F },
{ PMIC_TPS65132_VNEG, 0x14, 0x1F },
{ PMIC_TPS65132_DLYX, 0x95, 0xFF },
{ PMIC_TPS65132_ASSDD, 0x5b, 0xFF },
};
const struct tps65132s_cfg cfg = {
.i2c_bus = PMIC_TPS65132_I2C,
.en = GPIO_EN_PP3300_DISP_X,
.sync = GPIO_EN_PP3300_SDBRDG_X,
.settings = reg_settings,
.setting_counts = ARRAY_SIZE(reg_settings),
};
mainboard_set_regulator_voltage(MTK_REGULATOR_VIO18, 1800000);
mdelay(1);
gpio_output(GPIO_EN_PP3300_DISP_X, 1);
gpio_output(GPIO_EN_PP3300_SDBRDG_X, 1);
mdelay(1);
if (tps65132s_setup(&cfg) != CB_SUCCESS)
printk(BIOS_ERR, "Failed to setup tps65132s\n");
/* DISP_RST_1V8_L */
gpio_output(GPIO_EDPBRDG_RST_L, 1);
mdelay(1);