Re: [PATCH v10 07/10] qcom: cpuidle: Add cpuidle driver for QCOM cpus
From: Daniel Lezcano <hidden>
Date: 2014-11-26 10:04:09
Also in:
linux-arm-kernel, linux-arm-msm, linux-pm
On 11/21/2014 07:03 PM, Lina Iyer wrote:
Add cpuidle driver interface to allow cpus to go into C-States. Use the cpuidle DT interface, common across ARM architectures, to provide the idle state information to the cpuidle framework. Supported modes at this time are Standby and Standalone Power Collapse. Signed-off-by: Lina Iyer <redacted>
One nit and one comment below. Other than that: Acked-by: Daniel Lezcano <redacted> [ ... ]
+static int qcom_cpu_stby(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ lpm_ops->standby(NULL);In my last comment I was referring about a check for entering successfully the idle state: if (lpm_ops->standby(NULL)) return -1;
+ return index;
+}
+
+static int qcom_cpu_spc(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ lpm_ops->spc(NULL);
+
+ return index;
+}
+
+static struct cpuidle_driver qcom_cpuidle_driver = {
+ .name = "qcom_cpuidle",
+};
+
+static const struct of_device_id qcom_idle_state_match[] = {
+ { .compatible = "qcom,idle-state-stby", .data = qcom_cpu_stby},
^^^^
a missing space right before the closing bracket.
+ { .compatible = "qcom,idle-state-spc", .data = qcom_cpu_spc },
+ { },
+};
+Thanks! -- Daniel -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog