hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

PM / shmobile: Make TMU driver use pm_genpd_dev_always_on() 

Make the TMU clocksource driver mark its device as "always on"
using pm_genpd_dev_always_on() to protect it from surprise power
removals and make sh7372_add_standard_devices() add TMU devices on
sh7372 to the A4R power domain so that their "always on" flags
are taken into account as appropriate.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Rafael J. Wysocki 2012-03-13 22:40:00 +01:00
parent 1e78a0c7fc
commit 2ee619f948
2 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-shmobile/setup-sh7372.c
View File

@ -1041,6 +1041,8 @@ void __init sh7372_add_standard_devices(void)
sh7372_add_device_to_domain(&sh7372_a4r, &veu2_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu3_device);
sh7372_add_device_to_domain(&sh7372_a4r, &jpu_device);
sh7372_add_device_to_domain(&sh7372_a4r, &tmu00_device);
sh7372_add_device_to_domain(&sh7372_a4r, &tmu01_device);
}
void __init sh7372_add_early_devices(void)

4
drivers/clocksource/sh_tmu.c
View File

@ -32,6 +32,7 @@
#include <linux/sh_timer.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/pm_domain.h>
struct sh_tmu_priv {
void __iomem *mapbase;
@ -410,6 +411,9 @@ static int __devinit sh_tmu_probe(struct platform_device *pdev)
struct sh_tmu_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;