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-rw-r--r--driver/led/lm3509.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/driver/led/lm3509.c b/driver/led/lm3509.c
deleted file mode 100644
index 7c20c43ac2..0000000000
--- a/driver/led/lm3509.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* Copyright 2018 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.
- *
- * TI LM3509 LED driver.
- */
-
-#include "compile_time_macros.h"
-#include "i2c.h"
-#include "keyboard_backlight.h"
-#include "lm3509.h"
-
-static inline int lm3509_write(uint8_t reg, uint8_t val)
-{
- return i2c_write8(I2C_PORT_KBLIGHT, LM3509_I2C_ADDR_FLAGS,
- reg, val);
-}
-
-static inline int lm3509_read(uint8_t reg, int *val)
-{
- return i2c_read8(I2C_PORT_KBLIGHT, LM3509_I2C_ADDR_FLAGS,
- reg, val);
-}
-
-/* Brightness level (0.0 to 100.0%) to brightness register conversion table */
-static const uint16_t lm3509_brightness[32] = {
- 0, 1, 6, 10, 11, 13, 16, 20,
- 24, 28, 31, 37, 43, 52, 62, 75,
- 87, 100, 125, 150, 168, 187, 225, 262,
- 312, 375, 437, 525, 612, 700, 875, 1000
-};
-
-static int brightness_to_bmain(int percent)
-{
- int i;
- int b = percent * 10;
-
- for (i = 1; i < sizeof(lm3509_brightness); i++) {
- int low = lm3509_brightness[i - 1];
- int high = lm3509_brightness[i];
- if (high < b)
- continue;
- /* rounding to the nearest */
- return (b - low < high - b) ? i - 1 : i;
- }
- /* Brightness is out of range. Return the highest value. */
- return i - 1;
-}
-
-static int lm3509_power(int enable)
-{
- /* Enable both MAIN and SUB in unison mode.
- * Don't alter brightness here. It's not driver's business. */
- return lm3509_write(LM3509_REG_GP, enable ? 0x7 : 0);
-}
-
-static int lm3509_set_brightness(int percent)
-{
- /* We don't need to read/mask/write BMAIN because bit6 and 7 are non
- * functional read only bits.
- */
- return lm3509_write(LM3509_REG_BMAIN, brightness_to_bmain(percent));
-}
-
-static int lm3509_get_brightness(void)
-{
- int rv, val;
- rv = lm3509_read(LM3509_REG_BMAIN, &val);
- if (rv)
- return -1;
- val &= LM3509_BMAIN_MASK;
- return lm3509_brightness[val] / 10;
-}
-
-static int lm3509_init(void)
-{
- return EC_SUCCESS;
-}
-
-const struct kblight_drv kblight_lm3509 = {
- .init = lm3509_init,
- .set = lm3509_set_brightness,
- .get = lm3509_get_brightness,
- .enable = lm3509_power,
-};