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authorTony Lindgren <tony@atomide.com>2018-11-15 15:59:39 -0800
committerMark Brown <broonie@kernel.org>2018-11-15 16:20:43 -0800
commit91b9deefedf4c35a01027ce38bed7299605026a3 (patch)
tree31a02f2f0e9eaeb33499181f23c5110e5a334540 /drivers/spi
parenta4d8f64f7267a88d4688f5c216926f5f6cafbae6 (diff)
spi: omap2-mcspi: Add missing suspend and resume calls
I've been wondering still about omap2-mcspi related suspend and resume flakeyness and looks like we're missing calls to spi_master_suspend() and spi_master_resume(). Adding those and using pm_runtime_force_suspend() and pm_runtime_force_resume() makes things work for suspend and resume and allows us to stop using noirq suspend and resume. And while at it, let's use SET_SYSTEM_SLEEP_PM_OPS to simplify things further. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-omap2-mcspi.c37
1 files changed, 25 insertions, 12 deletions
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index f024c3fc3679..2fd8881fcd65 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1540,13 +1540,26 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:omap2_mcspi");
-#ifdef CONFIG_SUSPEND
-static int omap2_mcspi_suspend_noirq(struct device *dev)
+static int __maybe_unused omap2_mcspi_suspend(struct device *dev)
{
- return pinctrl_pm_select_sleep_state(dev);
+ struct spi_master *master = dev_get_drvdata(dev);
+ struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
+ int error;
+
+ error = pinctrl_pm_select_sleep_state(dev);
+ if (error)
+ dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
+ __func__, error);
+
+ error = spi_master_suspend(master);
+ if (error)
+ dev_warn(mcspi->dev, "%s: master suspend failed: %i\n",
+ __func__, error);
+
+ return pm_runtime_force_suspend(dev);
}
-static int omap2_mcspi_resume_noirq(struct device *dev)
+static int __maybe_unused omap2_mcspi_resume(struct device *dev)
{
struct spi_master *master = dev_get_drvdata(dev);
struct omap2_mcspi *mcspi = spi_master_get_devdata(master);
@@ -1557,17 +1570,17 @@ static int omap2_mcspi_resume_noirq(struct device *dev)
dev_warn(mcspi->dev, "%s: failed to set pins: %i\n",
__func__, error);
- return 0;
-}
+ error = spi_master_resume(master);
+ if (error)
+ dev_warn(mcspi->dev, "%s: master resume failed: %i\n",
+ __func__, error);
-#else
-#define omap2_mcspi_suspend_noirq NULL
-#define omap2_mcspi_resume_noirq NULL
-#endif
+ return pm_runtime_force_resume(dev);
+}
static const struct dev_pm_ops omap2_mcspi_pm_ops = {
- .suspend_noirq = omap2_mcspi_suspend_noirq,
- .resume_noirq = omap2_mcspi_resume_noirq,
+ SET_SYSTEM_SLEEP_PM_OPS(omap2_mcspi_suspend,
+ omap2_mcspi_resume)
.runtime_resume = omap_mcspi_runtime_resume,
};