diff options
| author | Ting Shen <phoenixshen@google.com> | 2021-09-13 17:44:22 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-09-14 07:37:22 +0000 |
| commit | 3d1b834b57d4710a48d61c794a38b28be56a67ce (patch) | |
| tree | be6806476760624ecf38d53ac83857c5eedce430 /driver/tcpm/rt1718s.c | |
| parent | 8b8de17aa9f124072f891d71e7d1731454771ce1 (diff) | |
| download | chrome-ec-3d1b834b57d4710a48d61c794a38b28be56a67ce.tar.gz | |
rt1718s: refactor: move gpio control to driver module
This CL moves RT1718S gpio control from board file to common driver
codebase, and implements the set flag and get/set level functions.
Note that this CL does not fully implement IOEX interface because TCPC
has different init process than usual ioexpanders.
BUG=none
TEST=1) pass faft_pd
2) manually test pd source/sink/frs on port 1
BRANCH=main
Signed-off-by: Ting Shen <phoenixshen@google.com>
Change-Id: If2a0bca2b13ad4748eea54b4c8004da7dc6fc6a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3159643
Reviewed-by: Rong Chang <rongchang@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Diffstat (limited to 'driver/tcpm/rt1718s.c')
| -rw-r--r-- | driver/tcpm/rt1718s.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/driver/tcpm/rt1718s.c b/driver/tcpm/rt1718s.c index 9a2f6319c7..9d5a8895ad 100644 --- a/driver/tcpm/rt1718s.c +++ b/driver/tcpm/rt1718s.c @@ -487,6 +487,39 @@ out: return rv; } +void rt1718s_gpio_set_flags(int port, enum rt1718s_gpio signal, uint32_t flags) +{ + int val = 0; + + if (!(flags & GPIO_OPEN_DRAIN)) + val |= RT1718S_GPIO_CTRL_OD_N; + if (flags & GPIO_PULL_UP) + val |= RT1718S_GPIO_CTRL_PU; + if (flags & GPIO_PULL_DOWN) + val |= RT1718S_GPIO_CTRL_PD; + if (flags & GPIO_HIGH) + val |= RT1718S_GPIO_CTRL_O; + if (flags & GPIO_OUTPUT) + val |= RT1718S_GPIO_CTRL_OE; + + rt1718s_write8(port, RT1718S_GPIO_CTRL(signal), val); +} + +void rt1718s_gpio_set_level(int port, enum rt1718s_gpio signal, int value) +{ + rt1718s_update_bits8(port, RT1718S_GPIO_CTRL(signal), + RT1718S_GPIO_CTRL_O, + value ? 0xFF : 0); +} + +int rt1718s_gpio_get_level(int port, enum rt1718s_gpio signal) +{ + int val; + + rt1718s_read8(port, RT1718S_GPIO_CTRL(signal), &val); + return !!(val & RT1718S_GPIO_CTRL_I); +} + /* RT1718S is a TCPCI compatible port controller */ const struct tcpm_drv rt1718s_tcpm_drv = { .init = &rt1718s_init, |