linux-kernel - [PATCH V3] i2c: tegra: fix tegra186 hw feature support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1550524360-29008-1-git-send-email-skomatineni@nvidia.com>
Date:   Mon, 18 Feb 2019 13:12:40 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <talho@...dia.com>, <skomatineni@...dia.com>
CC:     <wsa@...-dreams.de>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-i2c@...r.kernel.org>
Subject: [PATCH V3] i2c: tegra: fix tegra186 hw feature support

Tegra186 does not have master fifo control register and instead
uses fifo control register like prior tegra chipset.

This patch fixes this and prevents crashing during boot when
accessing fifo control registers.

Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
 drivers/i2c/busses/i2c-tegra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index a4cd79c9f7a7..e6851904acc1 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1436,7 +1436,7 @@ static const struct tegra_i2c_hw_feature tegra186_i2c_hw = {
 	.has_config_load_reg = true,
 	.has_multi_master_mode = true,
 	.has_slcg_override_reg = true,
-	.has_mst_fifo = true,
+	.has_mst_fifo = false,
 	.quirks = &tegra_i2c_quirks,
 	.supports_bus_clear = true,
 	.has_apb_dma = false,
-- 
2.7.4