From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>,
Sasha Levin <sashal@kernel.org>,
linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Wolfram Sang <wsa@the-dreams.de>
Subject: [PATCH AUTOSEL 5.6 29/50] i2c: iproc: generate stop event for slave writes
Date: Thu, 7 May 2020 10:27:05 -0400 [thread overview]
Message-ID: <20200507142726.25751-29-sashal@kernel.org> (raw)
In-Reply-To: <20200507142726.25751-1-sashal@kernel.org>
From: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
[ Upstream commit 068143a8195fb0fdeea1f3ca430b3db0f6d04a53 ]
When slave status is I2C_SLAVE_RX_END, generate I2C_SLAVE_STOP
event to i2c_client.
Fixes: c245d94ed106 ("i2c: iproc: Add multi byte read-write support for slave mode")
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/i2c/busses/i2c-bcm-iproc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/i2c/busses/i2c-bcm-iproc.c b/drivers/i2c/busses/i2c-bcm-iproc.c
index 30efb7913b2e1..b58224b7ba791 100644
--- a/drivers/i2c/busses/i2c-bcm-iproc.c
+++ b/drivers/i2c/busses/i2c-bcm-iproc.c
@@ -360,6 +360,9 @@ static bool bcm_iproc_i2c_slave_isr(struct bcm_iproc_i2c_dev *iproc_i2c,
value = (u8)((val >> S_RX_DATA_SHIFT) & S_RX_DATA_MASK);
i2c_slave_event(iproc_i2c->slave,
I2C_SLAVE_WRITE_RECEIVED, &value);
+ if (rx_status == I2C_SLAVE_RX_END)
+ i2c_slave_event(iproc_i2c->slave,
+ I2C_SLAVE_STOP, &value);
}
} else if (status & BIT(IS_S_TX_UNDERRUN_SHIFT)) {
/* Master read other than start */
--
2.20.1
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next prev parent reply other threads:[~2020-05-07 14:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200507142726.25751-1-sashal@kernel.org>
2020-05-07 14:26 ` [PATCH AUTOSEL 5.6 05/50] dmaengine: xilinx_dma: Add missing check for empty list Sasha Levin
2020-05-07 14:27 ` Sasha Levin [this message]
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 41/50] i2c: aspeed: Avoid i2c interrupt status clear race condition Sasha Levin
2020-05-07 14:27 ` [PATCH AUTOSEL 5.6 44/50] arm64: vdso: Add -fasynchronous-unwind-tables to cflags Sasha Levin
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