Fixes bugs in Auto-CMD23 feature enable decision. Auto-CMD23
shoud be enabled if host is >= v3, and SDMA is not in use.
USE_ADMA | USE_SDMA | Auto-CMD23
---------+----------+-----------
0 | 0 | 1
---------+----------+-----------
0 | 1 | 0
---------+----------+-----------
1 | 0 | 1
---------+----------+-----------
1 | 1 | 1
Signed-off-by: Andrei Warkentin <[email protected]>
---
drivers/mmc/host/sdhci.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index fbb1842..a4e64b0 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2498,9 +2498,9 @@ int sdhci_add_host(struct sdhci_host *host)
host->flags |= SDHCI_AUTO_CMD12;
/* Auto-CMD23 stuff only works in ADMA or PIO. */
- if ((host->version == SDHCI_SPEC_300) &&
+ if ((host->version >= SDHCI_SPEC_300) &&
((host->flags & SDHCI_USE_ADMA) ||
- !(host->flags & SDHCI_REQ_USE_DMA))) {
+ !(host->flags & SDHCI_USE_SDMA))) {
host->flags |= SDHCI_AUTO_CMD23;
printk(KERN_INFO "%s: Auto-CMD23 available\n",
mmc_hostname(mmc));
} else
--
1.7.0.4
--
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