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33 lines
1.0 KiB
Diff
Executable File
33 lines
1.0 KiB
Diff
Executable File
From f9583e98c2a73f1642c28dc7c043bc8a656c6b83 Mon Sep 17 00:00:00 2001
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From: Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com>
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Date: Wed, 11 May 2022 15:26:24 +0200
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Subject: [PATCH] i3c: mctp: workaround for wrong DCR value
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In GNR A0 there is an issue about DCR value. I3C MNG IP in GNR A0
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introduces itself with DCR=0xC9. Adding this value to allow MCTP over
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I3C driver to be loaded in this case as well.
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Issue will be fixed in GNR B0.
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Signed-off-by: Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com>
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Upstream-Status: Pending
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---
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drivers/i3c/mctp/i3c-mctp.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/drivers/i3c/mctp/i3c-mctp.c b/drivers/i3c/mctp/i3c-mctp.c
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index b0e3814..42e864d 100644
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--- a/drivers/i3c/mctp/i3c-mctp.c
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+++ b/drivers/i3c/mctp/i3c-mctp.c
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@@ -333,6 +333,8 @@ static void i3c_mctp_remove(struct i3c_device *i3cdev)
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static const struct i3c_device_id i3c_mctp_ids[] = {
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I3C_CLASS(0xCC, 0x0),
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+ /* Workaround for GNR A0 where I3C MNG IP introduces itself with DCR=0xC9 */
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+ I3C_CLASS(0xC9, 0x0),
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{ },
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};
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--
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2.7.4
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