linux-kernel - [PATCH 2/3] platform/chrome: cros_ec

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Message-Id: <1481909698-26189-3-git-send-email-thierry.escande@collabora.com>
Date:   Fri, 16 Dec 2016 18:34:57 +0100
From:   Thierry Escande <thierry.escande@...labora.com>
To:     Benson Leung <bleung@...omium.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] platform/chrome: cros_ec_lpc: Add power management ops

From: Archana Patni <archana.patni@...el.com>

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@...el.com>
Signed-off-by: Thierry Escande <thierry.escande@...labora.com>
---
 drivers/platform/chrome/cros_ec_lpc.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 90703521..89afad7 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,
-- 
2.7.4