Chronicler: Remove unused sensors

This commit remove sensors and tablet mode, since Chronicler doesn't
support that.

BUG=b:191064600
BRANCH=volteer
TEST=Verified boot without sensors initial.
Signed-off-by: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>
Change-Id: Icecae77ba5897ba08a21417c731301b48ac26230
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2962196
Reviewed-by: Raymond Wong <wongraymond@google.com>
Reviewed-by: Keith Short <keithshort@chromium.org>

6 files changed, 13 insertions, 311 deletions

diff --git a/board/chronicler/board.c b/board/chronicler/board.c
index 78209ce7be..2021a21726 100644
--- a/board/chronicler/board.c
+++ b/board/chronicler/board.c
@@ -9,9 +9,6 @@
 #include "common.h"
 #include "accelgyro.h"
 #include "cbi_ec_fw_config.h"
-#include "driver/accel_bma2x2.h"
-#include "driver/accelgyro_bmi260.h"
-#include "driver/als_tcs3400.h"
 #include "driver/retimer/bb_retimer.h"
 #include "driver/sync.h"
 #include "driver/tcpm/ps8xxx.h"
@@ -28,7 +25,6 @@
 #include "switch.h"
 #include "system.h"
 #include "task.h"
-#include "tablet_mode.h"
 #include "throttle_ap.h"
 #include "uart.h"
 #include "usb_pd.h"
@@ -137,13 +133,6 @@ BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);
 /* I2C port map configuration */
 const struct i2c_port_t i2c_ports[] = {
 	{
-		.name = "sensor",
-		.port = I2C_PORT_SENSOR,
-		.kbps = 400,
-		.scl = GPIO_EC_I2C0_SENSOR_SCL,
-		.sda = GPIO_EC_I2C0_SENSOR_SDA,
-	},
-	{
 		.name = "usb_c0",
 		.port = I2C_PORT_USB_C0,
 		.kbps = 1000,
diff --git a/board/chronicler/board.h b/board/chronicler/board.h
index c8fc4b464d..4aef940684 100644
--- a/board/chronicler/board.h
+++ b/board/chronicler/board.h
@@ -37,29 +37,10 @@
 /* Keyboard features */
 
 /* Sensors */
-/* BMA253 accelerometer in base */
-#define CONFIG_ACCEL_BMA255
-
-/* BMI260 accel/gyro in base */
-#define CONFIG_ACCELGYRO_BMI260
-#define CONFIG_ACCELGYRO_BMI260_INT_EVENT \
-	TASK_EVENT_MOTION_SENSOR_INTERRUPT(BASE_ACCEL)
-
-/* TCS3400 ALS */
-#define CONFIG_ALS
-#define ALS_COUNT		1
-#define CONFIG_ALS_TCS3400
-#define CONFIG_ALS_TCS3400_INT_EVENT \
-	TASK_EVENT_MOTION_SENSOR_INTERRUPT(CLEAR_ALS)
-
-/* Sensors without hardware FIFO are in forced mode */
-#define CONFIG_ACCEL_FORCE_MODE_MASK \
-	(BIT(LID_ACCEL) | BIT(CLEAR_ALS))
-
-#define CONFIG_LID_ANGLE
-#define CONFIG_LID_ANGLE_UPDATE
-#define CONFIG_LID_ANGLE_SENSOR_BASE		BASE_ACCEL
-#define CONFIG_LID_ANGLE_SENSOR_LID		LID_ACCEL
+#undef CONFIG_TABLET_MODE
+#undef CONFIG_GMR_TABLET_MODE
+#undef CONFIG_ACCEL_FIFO
+#undef CONFIG_ACCEL_FIFO_SIZE
 
 /* USB Type C and USB PD defines */
 #define CONFIG_USB_PD_PORT_MAX_COUNT			2
@@ -95,6 +76,7 @@
 /* BC 1.2 */
 
 /* Volume Button feature */
+#undef CONFIG_VOLUME_BUTTONS
 
 /* Fan features */
 
@@ -131,14 +113,9 @@
 #define GPIO_SYS_RESET_L		GPIO_SYS_RST_ODL
 #define GPIO_WP_L			GPIO_EC_WP_L
 #define GPIO_USB_C1_BC12_INT_ODL	GPIO_USB_C1_MIX_INT_ODL
-#define GPIO_VOLUME_UP_L		GPIO_EC_VOLUP_BTN_ODL
-#define GPIO_VOLUME_DOWN_L		GPIO_EC_VOLDN_BTN_ODL
-#define GMR_TABLET_MODE_GPIO_L		GPIO_TABLET_MODE_L
 
 /* I2C Bus Configuration */
 #define CONFIG_I2C
-#define I2C_PORT_ACCEL		I2C_PORT_SENSOR
-#define I2C_PORT_SENSOR		NPCX_I2C_PORT0_0
 #define I2C_PORT_USB_C0		NPCX_I2C_PORT1_0
 #define I2C_PORT_USB_C1		NPCX_I2C_PORT2_0
 #define I2C_PORT_USB_1_MIX	NPCX_I2C_PORT3_0
@@ -177,15 +154,6 @@ enum pwm_channel {
 	PWM_CH_COUNT
 };
 
-enum sensor_id {
-	LID_ACCEL = 0,
-	BASE_ACCEL,
-	BASE_GYRO,
-	CLEAR_ALS,
-	RGB_ALS,
-	SENSOR_COUNT,
-};
-
 void board_reset_pd_mcu(void);
 
 #ifdef CONFIG_KEYBOARD_FACTORY_TEST
diff --git a/board/chronicler/build.mk b/board/chronicler/build.mk
index 7bcf78ecad..c0daa31eaa 100644
--- a/board/chronicler/build.mk
+++ b/board/chronicler/build.mk
@@ -16,5 +16,4 @@ board-y+=battery.o
 board-y+=cbi.o
 board-y+=led.o
 board-y+=keyboard.o
-board-y+=sensors.o
 board-y+=usbc_config.o
diff --git a/board/chronicler/ec.tasklist b/board/chronicler/ec.tasklist
index e76bd368eb..c7a977f0ff 100644
--- a/board/chronicler/ec.tasklist
+++ b/board/chronicler/ec.tasklist
@@ -13,7 +13,6 @@
 	TASK_ALWAYS(USB_CHG_P0, usb_charger_task, 0, TASK_STACK_SIZE) \
 	TASK_ALWAYS(USB_CHG_P1, usb_charger_task, 0, TASK_STACK_SIZE) \
 	TASK_ALWAYS(CHARGER, charger_task, NULL, VENTI_TASK_STACK_SIZE) \
-	TASK_ALWAYS(MOTIONSENSE, motion_sense_task, NULL, VENTI_TASK_STACK_SIZE) \
 	TASK_NOTEST(KEYPROTO, keyboard_protocol_task, NULL, TASK_STACK_SIZE) \
 	TASK_NOTEST(CHIPSET, chipset_task, NULL, LARGER_TASK_STACK_SIZE) \
 	TASK_ALWAYS(HOSTCMD, host_command_task, NULL, LARGER_TASK_STACK_SIZE) \
diff --git a/board/chronicler/gpio.inc b/board/chronicler/gpio.inc
index 39181828c6..dc00e3eddf 100644
--- a/board/chronicler/gpio.inc
+++ b/board/chronicler/gpio.inc
@@ -24,16 +24,6 @@ GPIO_INT(PG_EC_RSMRST_ODL,     PIN(E, 2), GPIO_INT_BOTH, power_signal_interrupt)
 GPIO_INT(PG_EC_DSW_PWROK,      PIN(C, 7), GPIO_INT_BOTH, power_signal_interrupt)
 GPIO_INT(PG_EC_ALL_SYS_PWRGD,  PIN(F, 4), GPIO_INT_BOTH, power_signal_interrupt)
 
-/* Sensor Interrupts */
-GPIO_INT(EC_IMU_INT_L,         PIN(5, 6), GPIO_INT_FALLING | GPIO_SEL_1P8V, bmi260_interrupt)
-GPIO_INT(EC_ALS_RGB_INT_L,     PIN(D, 4), GPIO_INT_FALLING, tcs3400_interrupt)
-GPIO_INT(TABLET_MODE_L,        PIN(9, 5), GPIO_INT_BOTH, gmr_tablet_switch_isr)
-/*
- * Lid g-sensor interrupt unused on Chronicler, configure as regular input for
- * power saving.
- */
-GPIO(EC_ACCEL_INT,		PIN(8, 1), GPIO_INPUT | GPIO_PULL_UP)
-
 /* USB-C interrupts */
 GPIO_INT(USB_C0_TCPC_INT_ODL,	PIN(E, 0), GPIO_INT_BOTH, tcpc_alert_event)
 GPIO_INT(USB_C1_TCPC_INT_ODL,	PIN(A, 2), GPIO_INT_BOTH, tcpc_alert_event)
@@ -46,10 +36,6 @@ GPIO_INT(USB_C1_MIX_INT_ODL,	PIN(0, 3), GPIO_INT_BOTH, bc12_interrupt)
 
 /* HDMI interrupts */
 
-/* Volume button interrupts */
-GPIO_INT(EC_VOLDN_BTN_ODL,		PIN(9, 3), GPIO_INT_BOTH | GPIO_PULL_UP, button_interrupt)
-GPIO_INT(EC_VOLUP_BTN_ODL,		PIN(9, 7), GPIO_INT_BOTH | GPIO_PULL_UP, button_interrupt)
-
 /* Power Sequencing Signals */
 GPIO(EN_PP3300_A,              PIN(A, 3), GPIO_OUT_LOW)
 GPIO(EN_PP5000_A,              PIN(A, 4), GPIO_OUT_LOW)
@@ -121,6 +107,14 @@ GPIO(UNUSED_GPIO41,		PIN(4, 1), GPIO_INPUT | GPIO_PULL_UP)
 GPIO(UNUSED_GPIOF2,		PIN(F, 2), GPIO_INPUT | GPIO_PULL_UP)
 GPIO(UNUSED_GPIO96,		PIN(9, 6), GPIO_INPUT | GPIO_PULL_UP)
 GPIO(UNUSED_GPIO34,		PIN(3, 4), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIO56,		PIN(5, 6), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIOD4,		PIN(D, 4), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIO95,		PIN(9, 5), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIO81,		PIN(8, 1), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIO93,		PIN(9, 3), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIO97,		PIN(9, 7), GPIO_INPUT | GPIO_PULL_UP)
+GPIO(UNUSED_GPIOB5,		PIN(B, 5), GPIO_INPUT | GPIO_SEL_1P8V)	/* Unused I2C port, Set input only */
+GPIO(UNUSED_GPIOB4,		PIN(B, 4), GPIO_INPUT | GPIO_SEL_1P8V)	/* Unused I2C port, Set input only */
 /* Only connected to test points */
 GPIO(EC_KB_BL_EN,		PIN(8, 6), GPIO_INPUT | GPIO_PULL_UP)
 GPIO(EC_ESPI_ALERT_L,		PIN(5, 7), GPIO_INPUT | GPIO_PULL_UP)
@@ -133,8 +127,6 @@ GPIO(EC_ESPI_ALERT_L,		PIN(5, 7), GPIO_INPUT | GPIO_PULL_UP)
 GPIO(EC_EDP_BL_EN,             PIN(D, 3), GPIO_OUT_HIGH)
 
 /* I2C pins - Alternate function below configures I2C module on these pins */
-GPIO(EC_I2C0_SENSOR_SCL,       PIN(B, 5), GPIO_INPUT | GPIO_SEL_1P8V)
-GPIO(EC_I2C0_SENSOR_SDA,       PIN(B, 4), GPIO_INPUT | GPIO_SEL_1P8V)
 GPIO(EC_I2C1_USB_C0_SCL,       PIN(9, 0), GPIO_INPUT)
 GPIO(EC_I2C1_USB_C0_SDA,       PIN(8, 7), GPIO_INPUT)
 GPIO(EC_I2C2_USB_C1_SCL,       PIN(9, 2), GPIO_INPUT)
@@ -150,7 +142,6 @@ GPIO(EC_I2C7_EEPROM_PWR_SDA_R, PIN(B, 2), GPIO_INPUT)
 GPIO(EC_BATT_PRES_ODL, 		PIN(E, 1), GPIO_INPUT)
 
 /* Alternate functions GPIO definitions */
-ALTERNATE(PIN_MASK(B, BIT(5) | BIT(4)), 0, MODULE_I2C, (GPIO_INPUT | GPIO_SEL_1P8V)) /* I2C0 */
 ALTERNATE(PIN_MASK(9, BIT(0) | BIT(2) | BIT(1)), 0, MODULE_I2C, 0)                   /* I2C1 SCL / I2C2 */
 ALTERNATE(PIN_MASK(8, BIT(7)), 0, MODULE_I2C, 0)                                     /* I2C1 SDA */
 ALTERNATE(PIN_MASK(D, BIT(1) | BIT(0)), 0, MODULE_I2C, 0)                            /* I2C3 */
diff --git a/board/chronicler/sensors.c b/board/chronicler/sensors.c
deleted file mode 100644
index c744e2a29f..0000000000
--- a/board/chronicler/sensors.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/* Copyright 2021 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* Volteer family-specific sensor configuration */
-#include "common.h"
-#include "accelgyro.h"
-#include "driver/accel_bma2x2_public.h"
-#include "driver/accelgyro_bmi_common_public.h"
-#include "driver/accelgyro_bmi260_public.h"
-#include "driver/als_tcs3400_public.h"
-#include "keyboard_scan.h"
-#include "hooks.h"
-#include "i2c.h"
-#include "task.h"
-#include "tablet_mode.h"
-#include "util.h"
-
-/******************************************************************************/
-/* Sensors */
-K_MUTEX_DEFINE(g_lid_accel_mutex);
-K_MUTEX_DEFINE(g_base_mutex);
-
-/* BMA253 private data */
-static struct accelgyro_saved_data_t g_bma253_data;
-
-/* BMI260 private data */
-static struct bmi_drv_data_t g_bmi260_data;
-
-/* TCS3400 private data */
-static struct als_drv_data_t g_tcs3400_data = {
-	.als_cal.scale = 1,
-	.als_cal.uscale = 0,
-	.als_cal.offset = 0,
-	.als_cal.channel_scale = {
-		.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kc from VPD */
-		.cover_scale = ALS_CHANNEL_SCALE(1.0),     /* CT */
-	},
-};
-
-/*
- * TODO: b/146166425 need to calibrate ALS/RGB sensor. At default settings,
- * shining phone flashlight on sensor pegs all readings at 0xFFFF.
- */
-static struct tcs3400_rgb_drv_data_t g_tcs3400_rgb_data = {
-	.calibration.rgb_cal[X] = {
-		.offset = 0,
-		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
-		.scale = {
-			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kr */
-			.cover_scale = ALS_CHANNEL_SCALE(1.0)
-		}
-	},
-	.calibration.rgb_cal[Y] = {
-		.offset = 0,
-		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
-		.scale = {
-			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kg */
-			.cover_scale = ALS_CHANNEL_SCALE(1.0)
-		},
-	},
-	.calibration.rgb_cal[Z] = {
-		.offset = 0,
-		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
-		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
-		.scale = {
-			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kb */
-			.cover_scale = ALS_CHANNEL_SCALE(1.0)
-		}
-	},
-	.calibration.irt = INT_TO_FP(1),
-	.saturation.again = TCS_DEFAULT_AGAIN,
-	.saturation.atime = TCS_DEFAULT_ATIME,
-};
-
-/* Rotation matrix for the lid accelerometer */
-static const mat33_fp_t lid_standard_ref = {
-	{ FLOAT_TO_FP(1), 0, 0},
-	{ 0, FLOAT_TO_FP(-1), 0},
-	{ 0, 0, FLOAT_TO_FP(-1)}
-};
-
-const mat33_fp_t base_standard_ref = {
-	{ 0, FLOAT_TO_FP(1), 0},
-	{ FLOAT_TO_FP(-1), 0, 0},
-	{ 0, 0, FLOAT_TO_FP(1)}
-};
-
-struct motion_sensor_t motion_sensors[] = {
-	[LID_ACCEL] = {
-		.name = "Lid Accel",
-		.active_mask = SENSOR_ACTIVE_S0_S3,
-		.chip = MOTIONSENSE_CHIP_BMA255,
-		.type = MOTIONSENSE_TYPE_ACCEL,
-		.location = MOTIONSENSE_LOC_LID,
-		.drv = &bma2x2_accel_drv,
-		.mutex = &g_lid_accel_mutex,
-		.drv_data = &g_bma253_data,
-		.port = I2C_PORT_SENSOR,
-		.i2c_spi_addr_flags = BMA2x2_I2C_ADDR1_FLAGS,
-		.rot_standard_ref = &lid_standard_ref,
-		.min_frequency = BMA255_ACCEL_MIN_FREQ,
-		.max_frequency = BMA255_ACCEL_MAX_FREQ,
-		.default_range = 2, /* g, to support tablet mode */
-		.config = {
-			/* EC use accel for angle detection */
-			[SENSOR_CONFIG_EC_S0] = {
-				.odr = 10000 | ROUND_UP_FLAG,
-			},
-			/* Sensor on in S3 */
-			[SENSOR_CONFIG_EC_S3] = {
-				.odr = 10000 | ROUND_UP_FLAG,
-			},
-		},
-	},
-	[BASE_ACCEL] = {
-		.name = "Base Accel",
-		.active_mask = SENSOR_ACTIVE_S0_S3,
-		.chip = MOTIONSENSE_CHIP_BMI260,
-		.type = MOTIONSENSE_TYPE_ACCEL,
-		.location = MOTIONSENSE_LOC_BASE,
-		.drv = &bmi260_drv,
-		.mutex = &g_base_mutex,
-		.drv_data = &g_bmi260_data,
-		.port = I2C_PORT_SENSOR,
-		.i2c_spi_addr_flags = BMI260_ADDR0_FLAGS,
-		.rot_standard_ref = &base_standard_ref,
-		.min_frequency = BMI_ACCEL_MIN_FREQ,
-		.max_frequency = BMI_ACCEL_MAX_FREQ,
-		.default_range = 4, /* g */
-		.config = {
-			/* EC use accel for angle detection */
-			[SENSOR_CONFIG_EC_S0] = {
-				.odr = 10000 | ROUND_UP_FLAG,
-				.ec_rate = 100 * MSEC,
-			},
-			/* Sensor on in S3 */
-			[SENSOR_CONFIG_EC_S3] = {
-				.odr = 10000 | ROUND_UP_FLAG,
-				.ec_rate = 100 * MSEC,
-			},
-		},
-	},
-
-	[BASE_GYRO] = {
-		.name = "Base Gyro",
-		.active_mask = SENSOR_ACTIVE_S0_S3,
-		.chip = MOTIONSENSE_CHIP_BMI260,
-		.type = MOTIONSENSE_TYPE_GYRO,
-		.location = MOTIONSENSE_LOC_BASE,
-		.drv = &bmi260_drv,
-		.mutex = &g_base_mutex,
-		.drv_data = &g_bmi260_data,
-		.port = I2C_PORT_SENSOR,
-		.i2c_spi_addr_flags = BMI260_ADDR0_FLAGS,
-		.default_range = 1000, /* dps */
-		.rot_standard_ref = &base_standard_ref,
-		.min_frequency = BMI_GYRO_MIN_FREQ,
-		.max_frequency = BMI_GYRO_MAX_FREQ,
-	},
-	[CLEAR_ALS] = {
-		.name = "Clear Light",
-		.active_mask = SENSOR_ACTIVE_S0_S3,
-		.chip = MOTIONSENSE_CHIP_TCS3400,
-		.type = MOTIONSENSE_TYPE_LIGHT,
-		.location = MOTIONSENSE_LOC_BASE,
-		.drv = &tcs3400_drv,
-		.drv_data = &g_tcs3400_data,
-		.port = I2C_PORT_SENSOR,
-		.i2c_spi_addr_flags = TCS3400_I2C_ADDR_FLAGS,
-		.rot_standard_ref = NULL,
-		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
-		.min_frequency = TCS3400_LIGHT_MIN_FREQ,
-		.max_frequency = TCS3400_LIGHT_MAX_FREQ,
-		.config = {
-			/* Run ALS sensor in S0 */
-			[SENSOR_CONFIG_EC_S0] = {
-				.odr = 1000,
-			},
-		},
-	},
-
-	[RGB_ALS] = {
-		/*
-		 * RGB channels read by CLEAR_ALS and so the i2c port and
-		 * address do not need to be defined for RGB_ALS.
-		 */
-		.name = "RGB Light",
-		.active_mask = SENSOR_ACTIVE_S0_S3,
-		.chip = MOTIONSENSE_CHIP_TCS3400,
-		.type = MOTIONSENSE_TYPE_LIGHT_RGB,
-		.location = MOTIONSENSE_LOC_BASE,
-		.drv = &tcs3400_rgb_drv,
-		.drv_data = &g_tcs3400_rgb_data,
-		.rot_standard_ref = NULL,
-		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
-	},
-};
-unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
-
-/* ALS instances when LPC mapping is needed. Each entry directs to a sensor. */
-const struct motion_sensor_t *motion_als_sensors[] = {
-	&motion_sensors[CLEAR_ALS],
-};
-BUILD_ASSERT(ARRAY_SIZE(motion_als_sensors) == ALS_COUNT);
-
-static void baseboard_sensors_init(void)
-{
-	/* Note - BMA253 interrupt unused by EC */
-
-	/* Enable interrupt for the TCS3400 color light sensor */
-	gpio_enable_interrupt(GPIO_EC_ALS_RGB_INT_L);
-	/* Enable interrupt for the BMI260 accel/gyro sensor */
-	gpio_enable_interrupt(GPIO_EC_IMU_INT_L);
-}
-DECLARE_HOOK(HOOK_INIT, baseboard_sensors_init, HOOK_PRIO_DEFAULT);
-
-#ifndef TEST_BUILD
-void lid_angle_peripheral_enable(int enable)
-{
-	int chipset_in_s0 = chipset_in_state(CHIPSET_STATE_ON);
-
-	if (enable) {
-		keyboard_scan_enable(1, KB_SCAN_DISABLE_LID_ANGLE);
-	} else {
-		/*
-		 * Ensure that the chipset is off before disabling the keyboard.
-		 * When the chipset is on, the EC keeps the keyboard enabled and
-		 * the AP decides whether to ignore input devices or not.
-		 */
-		if (!chipset_in_s0)
-			keyboard_scan_enable(0, KB_SCAN_DISABLE_LID_ANGLE);
-	}
-}
-#endif