platform/chrome: cros_ec_lpc: Handle EC without CRS section

Fix logic to support GOOG0004 device without CRS section.
Instead of failing, assume there are not memory mapped EC registers.

Fixes: be4fccb ("platform/chrome: cros_ec_lpc: Support direct EC register memory access")
Signed-off-by: Gwendal Grignou <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Tzung-Bi Shih <[email protected]>

Author: gwendalcr

drivers/platform/chrome/cros_ec_lpc.c

@@ -562,11 +562,7 @@ static int cros_ec_lpc_probe(struct platform_device *pdev)
 		 */
 		status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
 					     cros_ec_lpc_resources, ec_lpc);
-		if (ACPI_FAILURE(status)) {
-			dev_err(dev, "failed to get resources\n");
-			return -ENODEV;
-		}
-		if (ec_lpc->mem32.address_length) {
+		if (ACPI_SUCCESS(status) && ec_lpc->mem32.address_length) {
 			ec_lpc->base = devm_ioremap(dev,
 						    ec_lpc->mem32.address,
 						    ec_lpc->mem32.address_length);