2014-09-27 19:10:51 +00:00
|
|
|
From 07947cfde701f7ba29b06574e9533bd6459da8ad Mon Sep 17 00:00:00 2001
|
2014-02-28 20:30:08 +00:00
|
|
|
From: Grigori Goronzy <greg@blackbox>
|
|
|
|
|
Date: Mon, 4 Jun 2012 04:27:48 +0200
|
2014-09-27 19:10:51 +00:00
|
|
|
Subject: [PATCH 011/196] sdhci-bcm2708: speed up DMA sync
|
2014-02-28 20:30:08 +00:00
|
|
|
|
|
|
|
|
Experiments show that it doesn't really take that long to sync, so we
|
|
|
|
|
can reduce the poll interval slightly. Might improve performance a bit.
|
|
|
|
|
---
|
|
|
|
|
drivers/mmc/host/sdhci-bcm2708.c | 2 +-
|
|
|
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
|
|
2014-09-27 19:10:51 +00:00
|
|
|
diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
|
|
|
|
|
index ae8edf7..a6bdc25 100644
|
2014-02-28 20:30:08 +00:00
|
|
|
--- a/drivers/mmc/host/sdhci-bcm2708.c
|
|
|
|
|
+++ b/drivers/mmc/host/sdhci-bcm2708.c
|
2014-09-27 19:10:51 +00:00
|
|
|
@@ -897,7 +897,7 @@ static void sdhci_bcm2708_dma_complete_irq(struct sdhci_host *host,
|
2014-02-28 20:30:08 +00:00
|
|
|
while (0 != (sdhci_bcm2708_raw_readl(host, SDHCI_PRESENT_STATE)
|
|
|
|
|
& state_mask) && --timeout > 0)
|
|
|
|
|
{
|
|
|
|
|
- udelay(100);
|
|
|
|
|
+ udelay(30);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
if (timeout <= 0)
|
2014-09-27 19:10:51 +00:00
|
|
|
--
|
|
|
|
|
1.9.1
|
|
|
|
|
|
