openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[ARM] 5441/1: Use pr_err on error paths in at91 pm 

Change pr_debug to pr_err on error paths in the AT91 power management
code. All of the errors will result in the cpu not going into the
suspend state. This patch makes it possible to identify problems with
suspend when power management debugging is not enabled.

Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ryan Mallon 2009-04-01 20:33:30 +01:00 committed by Russell King
parent f2255be812
commit 7f96b1caac
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/mach-at91/pm.c
View File

@ -198,17 +198,17 @@ static int at91_pm_verify_clocks(void)
/* USB must not be using PLLB */
if (cpu_is_at91rm9200()) {
if ((scsr & (AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP)) != 0) {
pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n");
pr_err("AT91: PM - Suspend-to-RAM with USB still active\n");
return 0;
}
} else if (cpu_is_at91sam9260() || cpu_is_at91sam9261() || cpu_is_at91sam9263() || cpu_is_at91sam9g20()) {
if ((scsr & (AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP)) != 0) {
pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n");
pr_err("AT91: PM - Suspend-to-RAM with USB still active\n");
return 0;
}
} else if (cpu_is_at91cap9()) {
if ((scsr & AT91CAP9_PMC_UHP) != 0) {
pr_debug("AT91: PM - Suspend-to-RAM with USB still active\n");
pr_err("AT91: PM - Suspend-to-RAM with USB still active\n");
return 0;
}
}
@ -223,7 +223,7 @@ static int at91_pm_verify_clocks(void)
css = at91_sys_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
if (css != AT91_PMC_CSS_SLOW) {
pr_debug("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
return 0;
}
}