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| author | Wealian Liao <whliao@nuvoton.corp-partner.google.com> | 2021-01-26 10:17:02 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-01-26 18:26:52 +0000 |
| commit | e21734eeef64b74eca8497965a5b76e7b5dbdc37 (patch) | |
| tree | 1b59e2f2c80189e509480d95d9bd0dd4fafe38af | |
| parent | 4ad071cebdae5a9acf2c0c9ca21d56b94e04c24c (diff) | |
| download | chrome-ec-e21734eeef64b74eca8497965a5b76e7b5dbdc37.tar.gz | |
npcx: fan: fix the enumeration of the tachometer clock
NPCX chip uses MFT as a tachometer module. The counter clock select is
not synced with the datasheet. For the LFCLK, the value of clock select
should be set to 4. This CL fix the LFCLK clock enumeration.
BUG=b:178376892
BRANCH=None
TEST=pass buildall
TEST=use PWM to generate the waveform to the tachometer. Check that the
tachometer gets the correct value by 'faninfo'.
Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: I22f47e0de403b144a8604e818db8f230764b4fc0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2649292
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
| -rw-r--r-- | chip/npcx/fan_chip.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/chip/npcx/fan_chip.h b/chip/npcx/fan_chip.h index bc97011895..6fc228ec84 100644 --- a/chip/npcx/fan_chip.h +++ b/chip/npcx/fan_chip.h @@ -32,7 +32,7 @@ enum npcx_mft_module { enum npcx_mft_clk_src { TCKC_NOCLK = 0, TCKC_PRESCALE_APB1_CLK = 1, - TCKC_LFCLK = 5, + TCKC_LFCLK = 4, }; /* Data structure to define MFT channels. */ |