Hello.
On 30-03-2011 19:19, jean.pihet@xxxxxxxxxxxxxx wrote:
From: Jean Pihet<j-pihet@xxxxxx>
Hwmod is queried from the omap device layer to manage the power domains
wake-up latency constraints. Hwmod retrieves the correct power domain
and if it exists it calls the corresponding power domain function.
Tested on OMAP3 Beagleboard in RET/OFF using wake-up latency constraints
on MPU, CORE and PER.
Signed-off-by: Jean Pihet<j-pihet@xxxxxx>
[...]
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index e034294..62de888 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
[...]
@@ -2322,11 +2323,34 @@ ohsps_unlock:
return ret;
}
+/*
+ * omap_hwmod_set_wkup_constraint- set/release a wake-up latency constraint
+ *
+ * @oh: struct omap_hwmod* to which the target device belongs to.
+ * @cookie: identifier of the constraints list for @oh.
+ * @min_latency: the minimum allowed wake-up latency for @oh.
+ *
+ * Returns 0 upon success.
+ */
+int omap_hwmod_set_wkup_lat_constraint(struct omap_hwmod *oh,
+ void *cookie, long min_latency)
+{
+ struct powerdomain *pwrdm = omap_hwmod_get_pwrdm(oh);
+
+ if (!PTR_ERR(pwrdm)) {
What's the point of calling PTR_ERR() at all, if just '!pwrdm' will give
the same result?
WBR, Sergei
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