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[Touch] Fix touch hang for some SoC revisions

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Fixes the hang on Nyx boot.
This commit is contained in:
ctcaer@gmail.com 2019-07-06 22:24:03 +03:00
parent 138da26a9a
commit 5b919cb12e
2 changed files with 13 additions and 11 deletions
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23
nyx/nyx_gui/input/touch.c
View file

@ -145,12 +145,13 @@ int touch_power_on()
gpio_write(GPIO_PORT_J, GPIO_PIN_7, GPIO_HIGH);
// IRQ and more.
// PINMUX_AUX(PINMUX_AUX_TOUCH_INT) = PINMUX_TRISTATE | PINMUX_PULL_UP | 3;
// PINMUX_AUX(PINMUX_AUX_TOUCH_INT) = PINMUX_INPUT_ENABLE | PINMUX_TRISTATE | PINMUX_PULL_UP | 3;
// gpio_config(GPIO_PORT_X, GPIO_PIN_1, GPIO_MODE_GPIO);
// gpio_write(GPIO_PORT_X, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3, GPIO_LOW);
// gpio_write(GPIO_PORT_X, GPIO_PIN_1, GPIO_LOW);
// Configure Touscreen and GCAsic shared GPIO.
PINMUX_AUX(PINMUX_AUX_CAM_I2C_SDA) = PINMUX_TRISTATE | PINMUX_INPUT_ENABLE | PINMUX_PULL_UP | 3;
PINMUX_AUX(PINMUX_AUX_CAM_I2C_SCL) = PINMUX_INPUT_ENABLE | 1;
gpio_config(GPIO_PORT_S, GPIO_PIN_3, GPIO_MODE_GPIO);
// Initialize I2C3.
@ -159,8 +160,9 @@ int touch_power_on()
i2c_init(I2C_3);
// Enables LDO6 for touchscreen VDD/AVDD supply
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG, 0xEA);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG2, 0xDA);
max77620_regulator_set_volt_and_flags(REGULATOR_LDO6, 2900000, MAX77620_POWER_MODE_NORMAL);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG2,
MAX77620_LDO_CFG2_ADE_ENABLE | (3 << 3) | (MAX77620_POWER_MODE_NORMAL << MAX77620_LDO_POWER_MODE_SHIFT));
msleep(20);
@ -193,14 +195,13 @@ void touch_power_off()
{
touch_command(STMFTS_SLEEP_IN);
// Disables LDO6 for touchscreen VDD, AVDD supply
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG, 0x28);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG2, 0xD2);
clock_disable_i2c(I2C_3);
// Disable touchscreen power.
gpio_write(GPIO_PORT_J, GPIO_PIN_7, GPIO_LOW);
pinmux_config_i2c(I2C_3);
// Disables LDO6 for touchscreen VDD, AVDD supply
max77620_regulator_enable(REGULATOR_LDO6, 0);
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_LDO6_CFG2,
MAX77620_LDO_CFG2_ADE_ENABLE | (2 << 3) | (MAX77620_POWER_MODE_NORMAL << MAX77620_LDO_POWER_MODE_SHIFT));
clock_disable_i2c(I2C_3);
}

1
nyx/nyx_gui/soc/pinmux.h
View file

@ -41,6 +41,7 @@
#define PINMUX_AUX_SATA_LED_ACTIVE 0x4C
#define PINMUX_AUX_DMIC3_CLK 0xB4
#define PINMUX_AUX_DMIC3_DAT 0xB8
#define PINMUX_AUX_CAM_I2C_SCL 0xD4
#define PINMUX_AUX_CAM_I2C_SDA 0xD8
#define PINMUX_AUX_UART2_TX 0xF4
#define PINMUX_AUX_UART3_TX 0x104