Re: [PATCH] tty: serial: msm: Add runtime PM and system sleep support
From: Andy Gross <hidden>
Date: 2016-08-25 04:36:01
Also in:
linux-arm-msm, lkml
On 17 June 2016 at 05:16, Pramod Gurav [off-list ref] wrote: <snip>
quoted hunk ↗ jump to hunk
@@ -1635,6 +1732,7 @@ static int msm_serial_remove(struct platform_device *pdev) struct uart_port *port = platform_get_drvdata(pdev); uart_remove_one_port(&msm_uart_driver, port); + pm_runtime_disable(&pdev->dev); return 0; }@@ -1645,12 +1743,67 @@ static const struct of_device_id msm_match_table[] = { {} }; +#ifdef CONFIG_PM +static int msm_serial_runtime_suspend(struct device *dev) +{ + struct uart_port *port = dev_get_drvdata(dev); + struct msm_port *msm_port = UART_TO_MSM(port); + + if (msm_port->is_uartdm) + clk_disable(msm_port->pclk);
You don't need to check, just clk_disable it.
+
+ return 0;
+}
+
+static int msm_serial_runtime_resume(struct device *dev)
+{
+ struct uart_port *port = dev_get_drvdata(dev);
+ struct msm_port *msm_port = UART_TO_MSM(port);
+ int ret;
+
+ if (msm_port->is_uartdm) {
+ ret = clk_enable(msm_port->pclk);Ditto here.
+ if (ret) + return ret; + } + + return 0; +} +#endif +
Regards, Andy