drivers: i3c: add open-drain speed support

Add SHELL support for configuring I3C open-drain speed modes.

Implementation:
- Include open-drain timing configuration inside cmd_i3c_speed function.

Signed-off-by: Shreehari HK <[email protected]>

Author: Shreehari-AlifSemi

drivers/i3c/i3c_shell.c

@@ -297,7 +297,7 @@ static int cmd_i3c_info(const struct shell *sh, size_t argc, char **argv)
 	return 0;
 }
 
-/* i3c speed <device> <speed> */
+/* i3c speed <device> <speed> [<od_min high_ns>] [<od_min low_ns>] */
 static int cmd_i3c_speed(const struct shell *sh, size_t argc, char **argv)
 {
 	const struct device *dev;
@@ -321,6 +321,12 @@ static int cmd_i3c_speed(const struct shell *sh, size_t argc, char **argv)
 
 	config.scl.i3c = speed;
 
+	if (argc == 5) {
+		/* This sets open-drain SCL high and low periods */
+		config.scl_od_min.high_ns = strtol(argv[ARGV_DEV + 2], NULL, 10);
+		config.scl_od_min.low_ns  = strtol(argv[ARGV_DEV + 3], NULL, 10);
+	}
+
 	ret = i3c_configure(dev, I3C_CONFIG_CONTROLLER, &config);
 	if (ret != 0) {
 		shell_error(sh, "I3C: Failed to configure device");
@@ -2390,8 +2396,8 @@ SHELL_STATIC_SUBCMD_SET_CREATE(
 		      cmd_i3c_info, 2, 1),
 	SHELL_CMD_ARG(speed, &dsub_i3c_device_name,
 		      "Set I3C device speed\n"
-		      "Usage: speed <device> <speed>",
-		      cmd_i3c_speed, 3, 0),
+		      "Usage: speed <device> <speed> [<od_min high_ns>] [<od_min low_ns>]",
+		      cmd_i3c_speed, 3, 2),
 	SHELL_CMD_ARG(recover, &dsub_i3c_device_name,
 		      "Recover I3C bus\n"
 		      "Usage: recover <device>",