Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH 6/6] PM / shmobile: Make MTU2 driver use pm_genpd_dev_always_on() | Date | Tue, 13 Mar 2012 01:28:05 +0100 |
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From: Rafael J. Wysocki <rjw@sisk.pl>
Make the MTU2 clocksource driver mark its device as "always on" using pm_genpd_dev_always_on() to protect it from surprise power removals.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> --- drivers/clocksource/sh_mtu2.c | 4 ++++ 1 file changed, 4 insertions(+)
Index: linux/drivers/clocksource/sh_mtu2.c =================================================================== --- linux.orig/drivers/clocksource/sh_mtu2.c +++ linux/drivers/clocksource/sh_mtu2.c @@ -31,6 +31,7 @@ #include <linux/sh_timer.h> #include <linux/slab.h> #include <linux/module.h> +#include <linux/pm_domain.h> struct sh_mtu2_priv { void __iomem *mapbase; @@ -306,6 +307,9 @@ static int __devinit sh_mtu2_probe(struc struct sh_mtu2_priv *p = platform_get_drvdata(pdev); int ret; + if (!is_early_platform_device(pdev)) + pm_genpd_dev_always_on(&pdev->dev, true); + if (p) { dev_info(&pdev->dev, "kept as earlytimer\n"); return 0;
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