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* [RFC][PATCH] ssb: mark bus as powered up earlier?
@ 2011-04-20 17:14 Rafał Miłecki
  2011-04-20 18:33 ` Michael Büsch
  0 siblings, 1 reply; 4+ messages in thread
From: Rafał Miłecki @ 2011-04-20 17:14 UTC (permalink / raw)
  To: linux-wireless, Michael Büsch; +Cc: b43-dev, Rafał Miłecki

---
This order seems to be wrong for me, but how we didn't get any reports about
errors? Are cores supported by ssb_chipco_set_clockmode so rare? Or is ssb so
rarely compiled with DEBUG?

The problem is that ssb_chipco_set_clockmode may want to touch CC registers to
control power of the bus. However touching registers without powered_up set
causes warnings.

Am I right at this?
---
 drivers/ssb/main.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index e06d634..076362e 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1309,20 +1309,20 @@ EXPORT_SYMBOL(ssb_bus_may_powerdown);
 
 int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl)
 {
-	struct ssb_chipcommon *cc;
 	int err;
 	enum ssb_clkmode mode;
 
 	err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
 	if (err)
 		goto error;
-	cc = &bus->chipco;
-	mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
-	ssb_chipco_set_clockmode(cc, mode);
 
 #ifdef CONFIG_SSB_DEBUG
 	bus->powered_up = 1;
 #endif
+
+	mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
+	ssb_chipco_set_clockmode(&bus->chipco, mode);
+
 	return 0;
 error:
 	ssb_printk(KERN_ERR PFX "Bus powerup failed\n");
-- 
1.7.3.4

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2011-04-20 18:43 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2011-04-20 17:14 [RFC][PATCH] ssb: mark bus as powered up earlier? Rafał Miłecki
2011-04-20 18:33 ` Michael Büsch
2011-04-20 18:41   ` Rafał Miłecki
2011-04-20 18:43     ` Michael Büsch

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