[PATCH v6 4/7] drm/tilcdc: use pm_runtime_irq_safe()

Jyri Sarha jsarha at ti.com
Wed May 27 02:22:58 PDT 2015

From: Tomi Valkeinen <tomi.valkeinen at ti.com>

tilcdc calls runtime PM get/put functions everywhere. Some of those
places will be called in irq context, crashing the driver.

As a quick fix, use pm_runtime_irq_safe() for tilcdc.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
Signed-off-by: Jyri Sarha <jsarha at ti.com>
 drivers/gpu/drm/tilcdc/tilcdc_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index fcc0508..0f283a3 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -227,6 +227,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
 	DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock);
+	pm_runtime_irq_safe(dev->dev);
 	/* Determine LCD IP Version */

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