On Wed, Dec 03 2014 at 02:11 -0700, Daniel Lezcano wrote:
On 12/03/2014 12:05 AM, Lina Iyer wrote:
On Tue, Dec 02 2014 at 10:40 -0700, Lina Iyer wrote:
+
[...]
[ ... ]
+static int __init qcom_spm_init(void)
+{
+ int ret;
+
+ /*
+ * cpuidle driver need to registered before the cpuidle device
+ * for any cpu. Register the device for the the cpuidle driver.
+ */
+ ret = platform_device_register(&qcom_cpuidle_drv);
+ if (ret)
+ return ret;
Stephen pointed out that we would have the platform device lying around
on a non-QCOM device when using multi_v7_defconfig.
Perhaps I am missing the point, but this is not supposed to happen, no ?
This would happen, since the file would compile on multi_v7 and we would
initialize and register this device regardless. The cpuidle-qcom.c
driver probe would bail out looking for a matching compatible property.
So we would not register a cpuidle driver but the device would lay
around.
So instead of doing this here, we could do this in the probe..
if (!cpuidle_get_driver()) {
int ret = platform_device_register(&qcom_cpuidle_drv);
if (ret)
return ret;
}
Would that be okay?
The successful probe indicates that we are on a QCOM SoC, and we have not
registered a cpuidle_driver before this.
Thanks,
Lina
+
+ return platform_driver_register(&spm_driver);
+}
+module_init(qcom_spm_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("SAW power controller driver");
+MODULE_ALIAS("platform:saw");
diff --git a/include/soc/qcom/pm.h b/include/soc/qcom/pm.h
new file mode 100644
index 0000000..d9a56d7
--- /dev/null
+++ b/include/soc/qcom/pm.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2009-2014, The Linux Foundation. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __QCOM_PM_H
+#define __QCOM_PM_H
+
+enum pm_sleep_mode {
+ PM_SLEEP_MODE_STBY,
+ PM_SLEEP_MODE_RET,
+ PM_SLEEP_MODE_SPC,
+ PM_SLEEP_MODE_PC,
+ PM_SLEEP_MODE_NR,
+};
+
+struct qcom_cpu_pm_ops {
+ int (*standby)(void *data);
+ int (*spc)(void *data);
+};
+
+#endif /* __QCOM_PM_H */
--
2.1.0
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