l |= 0x2 << 8; /* Set clock activity to perserve f-clock on idle */
/*
- * Enable wake-up only for GPT1 on OMAP2 CPUs.
- * FIXME: All timers should have wake-up enabled and clear
- * PRCM status.
+ * Enable wake-up on OMAP2 CPUs.
*/
- if (cpu_class_is_omap2() && (timer == &dm_timers[0]))
+ if (cpu_class_is_omap2())
l |= 1 << 2;
omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, l);
#ifdef CONFIG_ARCH_OMAP1
-void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
+int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
int n = (timer - dm_timers) << 1;
u32 l;
l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
l |= source << n;
omap_writel(l, MOD_CONF_CTRL_1);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(omap_dm_timer_set_source);
#else
-void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
+int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
+ int ret = -EINVAL;
+
if (source < 0 || source >= 3)
- return;
+ return -EINVAL;
clk_disable(timer->fclk);
- clk_set_parent(timer->fclk, dm_source_clocks[source]);
+ ret = clk_set_parent(timer->fclk, dm_source_clocks[source]);
clk_enable(timer->fclk);
- /* When the functional clock disappears, too quick writes seem to
- * cause an abort. */
+ /*
+ * When the functional clock disappears, too quick writes seem
+ * to cause an abort. XXX Is this still necessary?
+ */
__delay(150000);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(omap_dm_timer_set_source);