The patch titled
rtc-cmos: display HPET emulation mode
has been added to the -mm tree. Its filename is
rtc-cmos-display-hpet-emulation-mode.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: rtc-cmos: display HPET emulation mode
From: David Brownell <david-b@xxxxxxxxxxx>
For the "cmos" RTC, have /proc/driver/rtc say whether HPET based IRQ
emulation is in effect. Given the problems we've had with this particular
hardware maldesign (and the fact that most BIOS code seems not to provide
the IRQ routing needed to use the saner HPET modes), this should help
troubleshooting.
Signed-off-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-cmos.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN drivers/rtc/rtc-cmos.c~rtc-cmos-display-hpet-emulation-mode drivers/rtc/rtc-cmos.c
--- a/drivers/rtc/rtc-cmos.c~rtc-cmos-display-hpet-emulation-mode
+++ a/drivers/rtc/rtc-cmos.c
@@ -388,6 +388,7 @@ static int cmos_procfs(struct device *de
return seq_printf(seq,
"periodic_IRQ\t: %s\n"
"update_IRQ\t: %s\n"
+ "HPET_emulated\t: %s\n"
// "square_wave\t: %s\n"
// "BCD\t\t: %s\n"
"DST_enable\t: %s\n"
@@ -395,6 +396,7 @@ static int cmos_procfs(struct device *de
"batt_status\t: %s\n",
(rtc_control & RTC_PIE) ? "yes" : "no",
(rtc_control & RTC_UIE) ? "yes" : "no",
+ is_hpet_enabled() ? "yes" : "no",
// (rtc_control & RTC_SQWE) ? "yes" : "no",
// (rtc_control & RTC_DM_BINARY) ? "no" : "yes",
(rtc_control & RTC_DST_EN) ? "yes" : "no",
_
Patches currently in -mm which might be from david-b@xxxxxxxxxxx are
origin.patch
at91-correct-at91sam9263ek-lcd-power-gpio-pin.patch
i2c-isp1301_omap-new-style-i2c-driver-updates-part-1.patch
git-mmc.patch
usb-ehci-tolerates-some-buggy-devices.patch
rtc-cmos-display-hpet-emulation-mode.patch
-
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