Revert "platform/chrome: cros_typec_switch: Set EC retimer"

This reverts commit 34f375f0.

The chrome platform driver changes need to come in through the platform
tree due to some api changes that showed up there that cause build
errors in linux-next
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20220719160821.5e68e30b@oak.ozlabs.ibm.com
Cc: Prashant Malani <pmalani@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/platform/chrome/cros_typec_switch.c

@@ -9,10 +9,7 @@
 #include <linux/acpi.h>
 #include <linux/module.h>
 #include <linux/platform_data/cros_ec_commands.h>
-#include <linux/platform_data/cros_ec_proto.h>
 #include <linux/platform_device.h>
-#include <linux/usb/typec_altmode.h>
-#include <linux/usb/typec_dp.h>
 #include <linux/usb/typec_retimer.h>
 
 #define DRV_NAME "cros-typec-switch"
@@ -31,60 +28,9 @@ struct cros_typec_switch_data {
 	struct cros_typec_port *ports[EC_USB_PD_MAX_PORTS];
 };
 
-static int cros_typec_cmd_mux_set(struct cros_typec_switch_data *sdata, int port_num, u8 index,
-				  u8 state)
-{
-	struct typec_usb_mux_set params = {
-		.mux_index = index,
-		.mux_flags = state,
-	};
-
-	struct ec_params_typec_control req = {
-		.port = port_num,
-		.command = TYPEC_CONTROL_COMMAND_USB_MUX_SET,
-		.mux_params = params,
-	};
-
-	return cros_ec_command(sdata->ec, 0, EC_CMD_TYPEC_CONTROL, &req,
-			       sizeof(req), NULL, 0);
-}
-
-static int cros_typec_get_mux_state(unsigned long mode, struct typec_altmode *alt)
-{
-	int ret = -EOPNOTSUPP;
-
-	if (mode == TYPEC_STATE_SAFE)
-		ret = USB_PD_MUX_SAFE_MODE;
-	else if (mode == TYPEC_STATE_USB)
-		ret = USB_PD_MUX_USB_ENABLED;
-	else if (alt && alt->svid == USB_TYPEC_DP_SID)
-		ret = USB_PD_MUX_DP_ENABLED;
-
-	return ret;
-}
-
-/*
- * The Chrome EC treats both mode-switches and retimers as "muxes" for the purposes of the
- * host command API. This common function configures and verifies the retimer/mode-switch
- * according to the provided setting.
- */
-static int cros_typec_configure_mux(struct cros_typec_switch_data *sdata, int port_num, int index,
-				    unsigned long mode, struct typec_altmode *alt)
-{
-	int ret = cros_typec_get_mux_state(mode, alt);
-
-	if (ret < 0)
-		return ret;
-
-	return cros_typec_cmd_mux_set(sdata, port_num, index, (u8)ret);
-}
-
 static int cros_typec_retimer_set(struct typec_retimer *retimer, struct typec_retimer_state *state)
 {
-	struct cros_typec_port *port = typec_retimer_get_drvdata(retimer);
-
-	/* Retimers have index 1. */
-	return cros_typec_configure_mux(port->sdata, port->port_num, 1, state->mode, state->alt);
+	return 0;
 }
 
 static void cros_typec_unregister_switches(struct cros_typec_switch_data *sdata)