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author | Jack Rosenthal <jrosenth@chromium.org> | 2021-11-04 12:11:58 -0600 |
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committer | Commit Bot <commit-bot@chromium.org> | 2021-11-05 04:22:34 +0000 |
commit | 252457d4b21f46889eebad61d4c0a65331919cec (patch) | |
tree | 01856c4d31d710b20e85a74c8d7b5836e35c3b98 /driver/led/lm3509.c | |
parent | 08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff) | |
download | chrome-ec-stabilize-quickfix-14695.124.B-ish.tar.gz |
ish: Trim down the release branchstabilize-wristpin-14469.59.B-ishstabilize-voshyr-14637.B-ishstabilize-quickfix-14695.187.B-ishstabilize-quickfix-14695.124.B-ishstabilize-quickfix-14526.91.B-ishstabilize-14695.85.B-ishstabilize-14695.107.B-ishstabilize-14682.B-ishstabilize-14633.B-ishstabilize-14616.B-ishstabilize-14589.B-ishstabilize-14588.98.B-ishstabilize-14588.14.B-ishstabilize-14588.123.B-ishstabilize-14536.B-ishstabilize-14532.B-ishstabilize-14528.B-ishstabilize-14526.89.B-ishstabilize-14526.84.B-ishstabilize-14526.73.B-ishstabilize-14526.67.B-ishstabilize-14526.57.B-ishstabilize-14498.B-ishstabilize-14496.B-ishstabilize-14477.B-ishstabilize-14469.9.B-ishstabilize-14469.8.B-ishstabilize-14469.58.B-ishstabilize-14469.41.B-ishstabilize-14442.B-ishstabilize-14438.B-ishstabilize-14411.B-ishstabilize-14396.B-ishstabilize-14395.B-ishstabilize-14388.62.B-ishstabilize-14388.61.B-ishstabilize-14388.52.B-ishstabilize-14385.B-ishstabilize-14345.B-ishstabilize-14336.B-ishstabilize-14333.B-ishrelease-R99-14469.B-ishrelease-R98-14388.B-ishrelease-R102-14695.B-ishrelease-R101-14588.B-ishrelease-R100-14526.B-ishfirmware-cherry-14454.B-ishfirmware-brya-14505.B-ishfirmware-brya-14505.71.B-ishfactory-kukui-14374.B-ishfactory-guybrush-14600.B-ishfactory-cherry-14455.B-ishfactory-brya-14517.B-ish
In the interest of making long-term branch maintenance incur as little
technical debt on us as possible, we should not maintain any files on
the branch we are not actually using.
This has the added effect of making it extremely clear when merging CLs
from the main branch when changes have the possibility to affect us.
The follow-on CL adds a convenience script to actually pull updates from
the main branch and generate a CL for the update.
BUG=b:204206272
BRANCH=ish
TEST=make BOARD=arcada_ish && make BOARD=drallion_ish
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'driver/led/lm3509.c')
-rw-r--r-- | driver/led/lm3509.c | 85 |
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, -}; |