2019-07-31 16:23:26 +00:00
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From 5ff0d8351ea1bae67c1fd8d565bb4912cf201a71 Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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From: James Hughes <james.hughes@raspberrypi.org>
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Date: Wed, 31 Oct 2018 13:00:46 +0000
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2019-07-31 16:23:26 +00:00
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Subject: [PATCH 148/725] Increase firmware call buffer size to 48 bytes
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2019-07-09 18:32:28 +00:00
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An assumption was made in commit a1547e0bc that 32 bytes
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would be enough data buffer size for all firmware calls. However,
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the axi performance monitor driver uses a call with 44 bytes
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(RPI_FIRMWARE_GET_PERIPH_REG) to get the VC registers values.
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Increase value to 48 to take this in to account.
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Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
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---
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drivers/firmware/raspberrypi.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/firmware/raspberrypi.c
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+++ b/drivers/firmware/raspberrypi.c
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@@ -22,7 +22,7 @@
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#define MBOX_DATA28(msg) ((msg) & ~0xf)
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#define MBOX_CHAN_PROPERTY 8
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-#define MAX_RPI_FW_PROP_BUF_SIZE 32
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+#define MAX_RPI_FW_PROP_BUF_SIZE 48
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static struct platform_device *rpi_hwmon;
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