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* [patch 066/232] omap_hsmmc: clear interrupt status after init sequence
@ 2009-09-22 23:44 akpm
  0 siblings, 0 replies; only message in thread
From: akpm @ 2009-09-22 23:44 UTC (permalink / raw)
  To: torvalds
  Cc: akpm, adrian.hunter, ext-denis.2.karpov, ian, jarkko.lavinen,
	linux-mmc, madhu.cr, matt, philipl, pierre, roberto.foglietta

From: Adrian Hunter <adrian.hunter@nokia.com>

Clear the interrupt status after sending the initialization sequence, as
specified in the TRM.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Denis Karpov <ext-denis.2.karpov@nokia.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Philip Langdale <philipl@overt.org>
Cc: "Madhusudhan" <madhu.cr@ti.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/mmc/host/omap_hsmmc.c |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN drivers/mmc/host/omap_hsmmc.c~omap_hsmmc-clear-interrupt-status-after-init-sequence drivers/mmc/host/omap_hsmmc.c
--- a/drivers/mmc/host/omap_hsmmc.c~omap_hsmmc-clear-interrupt-status-after-init-sequence
+++ a/drivers/mmc/host/omap_hsmmc.c
@@ -360,6 +360,10 @@ static void send_init_stream(struct mmc_
 
 	OMAP_HSMMC_WRITE(host->base, CON,
 		OMAP_HSMMC_READ(host->base, CON) & ~INIT_STREAM);
+
+	OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
+	OMAP_HSMMC_READ(host->base, STAT);
+
 	enable_irq(host->irq);
 }
 
_

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2009-09-22 23:44 [patch 066/232] omap_hsmmc: clear interrupt status after init sequence akpm

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