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| author | Dawid Niedzwiecki <dn@semihalf.com> | 2021-11-05 13:31:32 +0100 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-11-08 23:25:55 +0000 |
| commit | bd06ea8601161fcb65122b08708ed8a73b387c71 (patch) | |
| tree | 76ad95cb56d8defdaf85f92f6a6551a70e81b577 /zephyr/shim/src/i2c.c | |
| parent | 04e6a2380e1cbafb169c7194f0fc58d460193ea6 (diff) | |
| download | chrome-ec-bd06ea8601161fcb65122b08708ed8a73b387c71.tar.gz | |
zephyr: i2c: Add dynamic-speed flag to named-i2c node
Add a property dynamic-speed to a i2c-named dts node. It informs that
the i2c speed of the i2c node can be changed in run-time with a console
command or a host command.
BUG=b:201408931
TEST=zmake testall & verify that i2c freq can be changed for marked
ports
BRANCH=main
Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
Change-Id: I1b261cab6bf288e574c600c6e97167e9edee2e2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3264184
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'zephyr/shim/src/i2c.c')
| -rw-r--r-- | zephyr/shim/src/i2c.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/zephyr/shim/src/i2c.c b/zephyr/shim/src/i2c.c index 11f9e03ed4..73f9cdd58e 100644 --- a/zephyr/shim/src/i2c.c +++ b/zephyr/shim/src/i2c.c @@ -26,10 +26,15 @@ #define INIT_REMOTE_PORTS(id) \ [I2C_PORT(id)] = DT_PROP_OR(id, remote_port, -1), -#define I2C_PORT_INIT(id) \ - { \ - .name = DT_LABEL(id), \ - .port = I2C_PORT(id), \ +#define I2C_PORT_FLAGS(id) \ + COND_CODE_1(DT_PROP(id, dynamic_speed), (I2C_PORT_FLAG_DYNAMIC_SPEED), \ + (0)) + +#define I2C_PORT_INIT(id) \ + { \ + .name = DT_LABEL(id), \ + .port = I2C_PORT(id), \ + .flags = I2C_PORT_FLAGS(id), \ }, /* * Long term we will not need these, for now they're needed to get things to |