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From 7b8c093062598df773858f956b1145a8df84434f Mon Sep 17 00:00:00 2001
From: Mykyta Dorokhin <mykyta.dorokhin@globallogic.com>
Date: Fri, 5 Feb 2021 19:20:29 +0200
Subject: [PATCH] linux-5.4: fix-atmel-mci-reg-overloading
---
drivers/mmc/host/atmel-mci.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index a750b0c..284057a 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -617,8 +617,12 @@ static void atmci_init_debugfs(struct atmel_mci_slot *slot)
return ERR_PTR(-ENOMEM);
for_each_child_of_node(np, cnp) {
- if (of_property_read_u32(cnp, "reg", &slot_id)) {
- dev_warn(&pdev->dev, "reg property is missing for %pOF\n",
+ /* Multi-Tech patch here. The original driver went through each child
+ device, and interprets 'reg' as slot ID. All other devices treat 'reg'
+ as function. We correct the driver here to take a 'slot-id' parameter
+ from OF for slot. MN */
+ if (of_property_read_u32(cnp, "slot-id", &slot_id)) {
+ dev_warn(&pdev->dev, "slot-id property is missing for %s\n",
cnp);
continue;
}
--
1.9.1
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