voxel: remove ALS motion sensor function

remove light sensor function of TCS3400

BUG=b:162940877
BRANCH=none
TEST=make buildall.

Change-Id: I8ceeac4084b6b369b19d53f40f15d198c3964816
Signed-off-by: Ben Chen <ben.chen2@quanta.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2344265
Reviewed-by: Keith Short <keithshort@chromium.org>

4 files changed, 2 insertions, 112 deletions

diff --git a/board/voxel/board.c b/board/voxel/board.c
index e2114811e0..52965ac4cb 100644
--- a/board/voxel/board.c
+++ b/board/voxel/board.c
@@ -11,7 +11,6 @@
 #include "cbi_ec_fw_config.h"
 #include "driver/accel_bma2x2.h"
 #include "driver/accelgyro_bmi260.h"
-#include "driver/als_tcs3400.h"
 #include "driver/ppc/syv682x.h"
 #include "driver/retimer/bb_retimer.h"
 #include "driver/sync.h"
diff --git a/board/voxel/board.h b/board/voxel/board.h
index 72981ded09..e380ba2846 100644
--- a/board/voxel/board.h
+++ b/board/voxel/board.h
@@ -41,16 +41,8 @@
 #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_ACCEL_FORCE_MODE_MASK BIT(LID_ACCEL)
 
 #define CONFIG_LID_ANGLE
 #define CONFIG_LID_ANGLE_UPDATE
@@ -172,8 +164,6 @@ enum sensor_id {
 	LID_ACCEL = 0,
 	BASE_ACCEL,
 	BASE_GYRO,
-	CLEAR_ALS,
-	RGB_ALS,
 	SENSOR_COUNT,
 };
 
diff --git a/board/voxel/gpio.inc b/board/voxel/gpio.inc
index a56ce99342..26a50b9437 100644
--- a/board/voxel/gpio.inc
+++ b/board/voxel/gpio.inc
@@ -26,7 +26,7 @@ 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(EC_ALS_RGB_INT_L,         PIN(D, 4), GPIO_INPUT | GPIO_PULL_UP)	/* unused */
 GPIO_INT(TABLET_MODE_L,        PIN(9, 5), GPIO_INT_BOTH, gmr_tablet_switch_isr)
 
 /* USB-C interrupts */
diff --git a/board/voxel/sensors.c b/board/voxel/sensors.c
index 9e34812131..6b8933264c 100644
--- a/board/voxel/sensors.c
+++ b/board/voxel/sensors.c
@@ -29,60 +29,6 @@ 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},
@@ -168,58 +114,13 @@ struct motion_sensor_t motion_sensors[] = {
 		.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);
 }