diff options
| author | Wealian Liao <whliao@nuvoton.corp-partner.google.com> | 2021-07-08 11:46:41 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-08-11 02:35:26 +0000 |
| commit | 67a08d2ff371a653190227fe30bfa250174b1d65 (patch) | |
| tree | 3d5b70e6522ec3b07ecc065c14fcbc1c69e6f4ec /zephyr/drivers/cros_kb_raw/Kconfig | |
| parent | a7c8741522d9f003e37c3e9e7c3c3e4ad897174d (diff) | |
| download | chrome-ec-67a08d2ff371a653190227fe30bfa250174b1d65.tar.gz | |
zephyr: cros_kb_raw_npcx: Add output high driver config option
This CL adds a Kconfig option 'CROS_KB_RAW_NPCX_KSO_HIGH_DRIVE' for
npcx output buffer high driver function.
BUG=none
BRANCH=none
TEST=zmake testall
Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: I91f98581f43ca88991345b2e23ab11e5b99353be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3077763
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'zephyr/drivers/cros_kb_raw/Kconfig')
| -rw-r--r-- | zephyr/drivers/cros_kb_raw/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/zephyr/drivers/cros_kb_raw/Kconfig b/zephyr/drivers/cros_kb_raw/Kconfig index 3109009da5..a037cdd451 100644 --- a/zephyr/drivers/cros_kb_raw/Kconfig +++ b/zephyr/drivers/cros_kb_raw/Kconfig @@ -12,6 +12,17 @@ menuconfig CROS_KB_RAW_NPCX kscan interface so we can continue to use most of the existing keyboard-scanning code in ECOS. +if CROS_KB_RAW_NPCX + +config CROS_KB_RAW_NPCX_KSO_HIGH_DRIVE + bool "Enable quasi-bidirectional buffers for KSO pins" + help + This option enables quasi-bidirectional buffers for KSO pins. The + low-impedance high drive is active when ec changes the output data + buffers from 0 to 1, thereby reducing the low-to-high transition time. + +endif # CROS_KB_RAW_NPCX + menuconfig CROS_KB_RAW_ITE bool "ITE raw-keyboard-scan driver for the Zephyr shim" depends on SOC_FAMILY_RISCV_ITE |