linux-kernel - [PATCH] of: of_reserved_mem: Increase limit on number of reserved regions

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Message-Id: <1582567352-4664-1-git-send-email-isaacm@codeaurora.org>
Date:   Mon, 24 Feb 2020 10:02:32 -0800
From:   "Isaac J. Manjarres" <isaacm@...eaurora.org>
To:     robh+dt@...nel.org, frowand.list@...il.com
Cc:     Patrick Daly <pdaly@...eaurora.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, lmark@...eaurora.org,
        pratikp@...eaurora.org, kernel-team@...roid.com,
        "Isaac J. Manjarres" <isaacm@...eaurora.org>
Subject: [PATCH] of: of_reserved_mem: Increase limit on number of reserved regions

From: Patrick Daly <pdaly@...eaurora.org>

Certain SoCs need to support a large amount of reserved memory
regions. For example, Qualcomm's SM8150 SoC requires that 20
regions of memory be reserved for a variety of reasons (e.g.
loading a peripheral subsystem's firmware image into a
particular space).

When adding more reserved memory regions to cater to different
usecases, the remaining number of reserved memory regions--12
to be exact--becomes too small. Thus, double the existing
limit of reserved memory regions.

Signed-off-by: Patrick Daly <pdaly@...eaurora.org>
Signed-off-by: Isaac J. Manjarres <isaacm@...eaurora.org>
---
 drivers/of/of_reserved_mem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index 6bd610e..1a84bc0 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -22,7 +22,7 @@
 #include <linux/slab.h>
 #include <linux/memblock.h>
 
-#define MAX_RESERVED_REGIONS	32
+#define MAX_RESERVED_REGIONS	64
 static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
 static int reserved_mem_count;
 
-- 
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