platform/chrome: cros_ec_lpc: Add power management ops

This patch adds suspend and resume pm ops to the LPC ChromeOS EC driver.
These LPC handlers call the croc_ec generic handlers.

Signed-off-by: Archana Patni <archana.patni@intel.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Benson Leung <bleung@chromium.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 9070352168a6..89afad7bb16e 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -333,10 +333,31 @@ static struct dmi_system_id cros_ec_lpc_dmi_table[] __initdata = {
 };
 MODULE_DEVICE_TABLE(dmi, cros_ec_lpc_dmi_table);
 
+#ifdef CONFIG_PM_SLEEP
+static int cros_ec_lpc_suspend(struct device *dev)
+{
+        struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+        return cros_ec_suspend(ec_dev);
+}
+
+static int cros_ec_lpc_resume(struct device *dev)
+{
+        struct cros_ec_device *ec_dev = dev_get_drvdata(dev);
+
+        return cros_ec_resume(ec_dev);
+}
+#endif
+
+const struct dev_pm_ops cros_ec_lpc_pm_ops = {
+        SET_LATE_SYSTEM_SLEEP_PM_OPS(cros_ec_lpc_suspend, cros_ec_lpc_resume)
+};
+
 static struct platform_driver cros_ec_lpc_driver = {
         .driver = {
                 .name = DRV_NAME,
                 .acpi_match_table = cros_ec_lpc_acpi_device_ids,
+                .pm = &cros_ec_lpc_pm_ops,
         },
         .probe = cros_ec_lpc_probe,
         .remove = cros_ec_lpc_remove,