platform/chrome: cros_ec_typec: Parameterize cros_typec_cmds_supported()

cros_typec_cmds_supported() is currently being used to check only one
feature flag.
Add a new feature parameter to it so that it can be used to check
multiple feature flags supported in cros_ec.
Rename cros_typec_cmds_supported() to cros_typec_feature_supported().
Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com>
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20201210060903.2205-2-utkarsh.h.patel@intel.com

drivers/platform/chrome/cros_ec_typec.c

@@ -974,8 +974,8 @@ static int cros_typec_get_cmd_version(struct cros_typec_data *typec)
 	return 0;
 }
 
-/* Check the EC feature flags to see if TYPEC_* commands are supported. */
-static int cros_typec_cmds_supported(struct cros_typec_data *typec)
+/* Check the EC feature flags to see if TYPEC_* features are supported. */
+static int cros_typec_feature_supported(struct cros_typec_data *typec, enum ec_feature_code feature)
 {
 	struct ec_response_get_features resp = {};
 	int ret;
@@ -984,11 +984,12 @@ static int cros_typec_cmds_supported(struct cros_typec_data *typec)
 				    &resp, sizeof(resp));
 	if (ret < 0) {
 		dev_warn(typec->dev,
-			 "Failed to get features, assuming typec commands unsupported.\n");
+			 "Failed to get features, assuming typec feature=%d unsupported.\n",
+			 feature);
 		return 0;
 	}
 
-	return resp.flags[EC_FEATURE_TYPEC_CMD / 32] & EC_FEATURE_MASK_1(EC_FEATURE_TYPEC_CMD);
+	return resp.flags[feature / 32] & EC_FEATURE_MASK_1(feature);
 }
 
 static void cros_typec_port_work(struct work_struct *work)
@@ -1050,7 +1051,8 @@ static int cros_typec_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	typec->typec_cmd_supported = !!cros_typec_cmds_supported(typec);
+	typec->typec_cmd_supported = !!cros_typec_feature_supported(typec,
+					EC_FEATURE_TYPEC_CMD);
 
 	ret = cros_typec_ec_command(typec, 0, EC_CMD_USB_PD_PORTS, NULL, 0,
 				    &resp, sizeof(resp));