These devices do not need to return to non-graphic console for suspend, so disable that option. This means there is less work to do in the suspend/resume cycle, making it smoother and cheaper.
Signed-off-by: NeilBrown <n...@brown.name>
--
Hi Tomi,
I wonder if you would consider this patch too. It works for me and
removes pointless vt switching. I assume no-one would need or want that
switching on suspend/resume but I guess I cannot be certain.
Maybe a module-parameter could be used if there was any uncertainty.
thanks,
NeilBrown
diff --git a/drivers/video/fbdev/omap2/dss/dpi.c
b/drivers/video/fbdev/omap2/dss/dpi.c
index f83e7b030249..4a29bab4ade3 100644
--- a/drivers/video/fbdev/omap2/dss/dpi.c
+++ b/drivers/video/fbdev/omap2/dss/dpi.c
@@ -32,6 +32,7 @@
#include <linux/string.h>
#include <linux/of.h>
#include <linux/clk.h>
+#include <linux/suspend.h>
#include <video/omapdss.h>
@@ -798,6 +799,8 @@ static int omap_dpi_probe(struct platform_device *pdev)
mutex_init(&dpi->lock);
dpi_init_output(pdev);
+ /* No need to vt_switch in suspend/resume */
+ pm_set_vt_switch(0);
return 0;
}
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