From: Phil Elwell <phil@raspberrypi.org>
Date: Fri, 14 Jul 2017 11:59:55 +0000 (+0100)
Subject: bcm2835-mmc: Fix DMA usage
X-Git-Tag: archive/raspbian/4.9.30-2+deb9u2+rpi1~4^2~29
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=6e4bea7c8812f693319d9372f9e50b24ca8db51f;p=linux-4.9.git

bcm2835-mmc: Fix DMA usage

The previous change ("bcm2835-mmc: Only claim one DMA channel")
used an incorrect variable, the effect of which was to prevent
DMA from being used at all. Fix that bug by using the right
variable.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---

diff --git a/drivers/mmc/host/bcm2835-mmc.c b/drivers/mmc/host/bcm2835-mmc.c
index 4fe8d1fe4457..981db05de1ff 100644
--- a/drivers/mmc/host/bcm2835-mmc.c
+++ b/drivers/mmc/host/bcm2835-mmc.c
@@ -1354,14 +1354,14 @@ static int bcm2835_mmc_add_host(struct bcm2835_host *host)
 		if (ret == 0) {
 			host->dma_cfg_rx = cfg;
 
-			host->use_dma = true;
+			host->have_dma = true;
 		} else {
 			pr_err("%s: unable to configure DMA channel. "
-			       "Faling back to PIO\n",
+			       "Falling back to PIO\n",
 			       mmc_hostname(mmc));
 			dma_release_channel(host->dma_chan_rxtx);
 			host->dma_chan_rxtx = NULL;
-			host->use_dma = false;
+			host->have_dma = false;
 		}
 	}
 #endif