From: Sowjanya Komatineni <skomatineni@nvidia.com>
To: thierry.reding@gmail.com, jonathanh@nvidia.com, talho@nvidia.com,
skomatineni@nvidia.com
Cc: wsa@the-dreams.de, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org
Subject: [PATCH V5 2/2] i2c: tegra: remove multi-master support
Date: Tue, 19 Feb 2019 09:28:52 -0800 [thread overview]
Message-ID: <1550597332-21018-2-git-send-email-skomatineni@nvidia.com> (raw)
In-Reply-To: <1550597332-21018-1-git-send-email-skomatineni@nvidia.com>
Multi-master support is defeatured on Tegra210 and Tegra186 due to
known bugs.
This patch removes multi-master support for Tegra210 and Tegra186
I2C HW feature.
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
drivers/i2c/busses/i2c-tegra.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index e6851904acc1..26f686bc3491 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1409,7 +1409,7 @@ static const struct tegra_i2c_hw_feature tegra210_i2c_hw = {
.clk_divisor_fast_mode = 0x19,
.clk_divisor_fast_plus_mode = 0x10,
.has_config_load_reg = true,
- .has_multi_master_mode = true,
+ .has_multi_master_mode = false,
.has_slcg_override_reg = true,
.has_mst_fifo = false,
.quirks = &tegra_i2c_quirks,
@@ -1434,7 +1434,7 @@ static const struct tegra_i2c_hw_feature tegra186_i2c_hw = {
.clk_divisor_fast_mode = 0x19,
.clk_divisor_fast_plus_mode = 0x10,
.has_config_load_reg = true,
- .has_multi_master_mode = true,
+ .has_multi_master_mode = false,
.has_slcg_override_reg = true,
.has_mst_fifo = false,
.quirks = &tegra_i2c_quirks,
--
2.7.4
next prev parent reply other threads:[~2019-02-19 17:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 17:28 [PATCH V5 1/2] i2c: tegra: remove master fifo support on tegra186 Sowjanya Komatineni
2019-02-19 17:28 ` Sowjanya Komatineni [this message]
2019-02-23 9:29 ` [PATCH V5 2/2] i2c: tegra: remove multi-master support Wolfram Sang
2019-02-23 9:29 ` [PATCH V5 1/2] i2c: tegra: remove master fifo support on tegra186 Wolfram Sang
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