* Tony Lindgren <tony@xxxxxxxxxxx> [120510 11:55]:
> * Tony Lindgren <tony@xxxxxxxxxxx> [120510 11:49]:
> > The following changes since commit bfd17879866b36e95c58721da070d9f2ac7f8901:
> >
> > Merge tag 'omap-devel-c-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-hwmod-data (2012-05-09 09:58:42 -0700)
> >
> > are available in the git repository at:
> >
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap tags/omap-cleanup-timer-for-v3.5
> >
> > for you to fetch changes up to 1fe97c8f6a1de67a5f56e029a818903d5bed8017:
> >
> > ARM: OMAP: Make OMAP clocksource source selection using kernel param (2012-05-09 10:07:05 -0700)
> >
> > ----------------------------------------------------------------
> > Timer changes to make it easier to support various SoCs
> >
> > ----------------------------------------------------------------
>
> And this has a conflict for common headers:
...
Also looks like this produces a merge conflict with linux-next
commit bd0493ea (ARM: 7413/1: move read_{boot,persistent}_clock to
the architecture level). To resolve, the line to add
register_persistent_clock(NULL, omap_read_persistent_clock);
needs to be resolved as below.
Regards,
Tony
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@@ -69,40 -69,55 +70,41 @@@ static void omap_read_persistent_clock(
*ts = *tsp;
}
-int __init omap_init_clocksource_32k(void)
+/**
+ * omap_init_clocksource_32k - setup and register counter 32k as a
+ * kernel clocksource
+ * @pbase: base addr of counter_32k module
+ * @size: size of counter_32k to map
+ *
+ * Returns 0 upon success or negative error code upon failure.
+ *
+ */
+int __init omap_init_clocksource_32k(void __iomem *vbase)
{
- static char err[] __initdata = KERN_ERR
- "%s: can't register clocksource!\n";
-
- if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
- u32 pbase;
- unsigned long size = SZ_4K;
- void __iomem *base;
- struct clk *sync_32k_ick;
-
- if (cpu_is_omap16xx()) {
- pbase = OMAP16XX_TIMER_32K_SYNCHRONIZED;
- size = SZ_1K;
- } else if (cpu_is_omap2420())
- pbase = OMAP2420_32KSYNCT_BASE + 0x10;
- else if (cpu_is_omap2430())
- pbase = OMAP2430_32KSYNCT_BASE + 0x10;
- else if (cpu_is_omap34xx())
- pbase = OMAP3430_32KSYNCT_BASE + 0x10;
- else if (cpu_is_omap44xx())
- pbase = OMAP4430_32KSYNCT_BASE + 0x10;
- else
- return -ENODEV;
-
- /* For this to work we must have a static mapping in io.c for this area */
- base = ioremap(pbase, size);
- if (!base)
- return -ENODEV;
-
- sync_32k_ick = clk_get(NULL, "omap_32ksync_ick");
- if (!IS_ERR(sync_32k_ick))
- clk_enable(sync_32k_ick);
-
- timer_32k_base = base;
-
- /*
- * 120000 rough estimate from the calculations in
- * __clocksource_updatefreq_scale.
- */
- clocks_calc_mult_shift(&persistent_mult, &persistent_shift,
- 32768, NSEC_PER_SEC, 120000);
-
- if (clocksource_mmio_init(base, "32k_counter", 32768, 250, 32,
- clocksource_mmio_readl_up))
- printk(err, "32k_counter");
-
- setup_sched_clock(omap_32k_read_sched_clock, 32, 32768);
- register_persistent_clock(NULL, omap_read_persistent_clock);
+ int ret;
+
+ /*
+ * 32k sync Counter register offset is at 0x10
+ */
+ sync32k_cnt_reg = vbase + OMAP2_32KSYNCNT_CR_OFF;
+
+ /*
+ * 120000 rough estimate from the calculations in
+ * __clocksource_updatefreq_scale.
+ */
+ clocks_calc_mult_shift(&persistent_mult, &persistent_shift,
+ 32768, NSEC_PER_SEC, 120000);
+
+ ret = clocksource_mmio_init(sync32k_cnt_reg, "32k_counter", 32768,
+ 250, 32, clocksource_mmio_readl_up);
+ if (ret) {
+ pr_err("32k_counter: can't register clocksource\n");
+ return ret;
}
+
+ setup_sched_clock(omap_32k_read_sched_clock, 32, 32768);
+ pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n");
++ register_persistent_clock(NULL, omap_read_persistent_clock);
+
return 0;
}
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