35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
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From 9e6eeee6a1e0477f237dee5015c982296a91403f Mon Sep 17 00:00:00 2001
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From: Pantelis Antoniou <panto@antoniou-consulting.com>
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Date: Fri, 26 Oct 2012 15:48:00 +0300
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Subject: [PATCH 1/2] omap-hsmmc: Correct usage of of_find_node_by_name
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of_find_node_by_name expect to have the parent node reference taken.
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---
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drivers/mmc/host/omap_hsmmc.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
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index 91e2954..8ab4a93 100644
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--- a/drivers/mmc/host/omap_hsmmc.c
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+++ b/drivers/mmc/host/omap_hsmmc.c
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@@ -1949,6 +1949,16 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
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* as we want. */
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mmc->max_segs = 1024;
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+ /* Eventually we should get our max_segs limitation for EDMA by
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+ * querying the dmaengine API */
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+ if (pdev->dev.of_node) {
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+ struct device_node *parent = of_node_get(pdev->dev.of_node->parent);
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+ struct device_node *node;
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+ node = of_find_node_by_name(parent, "edma");
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+ if (node)
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+ mmc->max_segs = 16;
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+ }
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+
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mmc->max_blk_size = 512; /* Block Length at max can be 1024 */
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mmc->max_blk_count = 0xFFFF; /* No. of Blocks is 16 bits */
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mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
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--
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1.8.2.1
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