File 0036-omap-hsmmc-Correct-usage-of-of_find_node_by_name.patch of Package kernel-adaptation-bbb-v3.12

From 4dc5de7a54411e48013d0233f85ce98df8977987 Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <panto@antoniou-consulting.com>
Date: Fri, 26 Oct 2012 15:48:00 +0300
Subject: [PATCH 36/96] omap-hsmmc: Correct usage of of_find_node_by_name

of_find_node_by_name expect to have the parent node reference taken.
---
 drivers/mmc/host/omap_hsmmc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 6ac63df..f5b660c 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1893,6 +1893,16 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	 * as we want. */
 	mmc->max_segs = 1024;
 
+	/* Eventually we should get our max_segs limitation for EDMA by
+	 * querying the dmaengine API */
+	if (pdev->dev.of_node) {
+		struct device_node *parent = of_node_get(pdev->dev.of_node->parent);
+		struct device_node *node;
+		node = of_find_node_by_name(parent, "edma");
+		if (node)
+			mmc->max_segs = 16;
+	}
+
 	mmc->max_blk_size = 512;       /* Block Length at max can be 1024 */
 	mmc->max_blk_count = 0xFFFF;    /* No. of Blocks is 16 bits */
 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
-- 
1.9.1