linux-kernel - [PATCH 5.13 163/380] net: ipa: fix IPA v4.11 interconnect data

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Message-Id: <20210916155809.631614748@linuxfoundation.org>
Date:   Thu, 16 Sep 2021 17:58:40 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Alex Elder <elder@...aro.org>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 163/380] net: ipa: fix IPA v4.11 interconnect data

From: Alex Elder <elder@...aro.org>

[ Upstream commit 0ac26271344478ff718329fa9d4ef81d4bcbc43b ]

Currently three interconnects are defined for the Qualcomm SC7280
SoC, but this was based on a misunderstanding.  There should only be
two interconnects defined:  one between the IPA and system memory;
and another between the AP and IPA config space.  The bandwidths
defined for the memory and config interconnects do not match what I
understand to be proper values, so update these.

Signed-off-by: Alex Elder <elder@...aro.org>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ipa/ipa_data-v4.11.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ipa/ipa_data-v4.11.c b/drivers/net/ipa/ipa_data-v4.11.c
index 05806ceae8b5..157f8d47058b 100644
--- a/drivers/net/ipa/ipa_data-v4.11.c
+++ b/drivers/net/ipa/ipa_data-v4.11.c
@@ -346,18 +346,13 @@ static const struct ipa_mem_data ipa_mem_data = {
 static const struct ipa_interconnect_data ipa_interconnect_data[] = {
 	{
 		.name			= "memory",
-		.peak_bandwidth		= 465000,	/* 465 MBps */
-		.average_bandwidth	= 80000,	/* 80 MBps */
-	},
-	/* Average rate is unused for the next two interconnects */
-	{
-		.name			= "imem",
-		.peak_bandwidth		= 68570,	/* 68.57 MBps */
-		.average_bandwidth	= 80000,	/* 80 MBps (unused?) */
+		.peak_bandwidth		= 600000,	/* 600 MBps */
+		.average_bandwidth	= 150000,	/* 150 MBps */
 	},
+	/* Average rate is unused for the next interconnect */
 	{
 		.name			= "config",
-		.peak_bandwidth		= 30000,	/* 30 MBps */
+		.peak_bandwidth		= 74000,	/* 74 MBps */
 		.average_bandwidth	= 0,		/* unused */
 	},
 };
-- 
2.30.2