linux-kernel - [PATCH] spi/rockchip: spi controller must be disabled in tx callback too

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Date:	Fri, 17 Oct 2014 09:44:13 +0800
From:	Addy Ke <addy.ke@...k-chips.com>
To:	broonie@...nel.org, heiko@...ech.de, dianders@...omium.org,
	grant.likely@...aro.org, robh+dt@...nel.org, amstan@...gle.com,
	sonnyrao@...gle.com
Cc:	linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
	olof@...om.net, hj@...k-chips.com, kever.yang@...k-chips.com,
	xjq@...k-chips.com, huangtao@...k-chips.com, zyw@...k-chips.com,
	yzq@...k-chips.com, zhenfu.fang@...k-chips.com, cf@...k-chips.com,
	zhangqing@...k-chips.com, hl@...k-chips.com,
	wei.luo@...k-chips.com, Addy Ke <addy.ke@...k-chips.com>
Subject: [PATCH] spi/rockchip: spi controller must be disabled in tx callback too

Signed-off-by: Addy Ke <addy.ke@...k-chips.com>
---
 drivers/spi/spi-rockchip.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 153269b..87bc16f 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -418,8 +418,10 @@ static void rockchip_spi_dma_txcb(void *data)
 	spin_lock_irqsave(&rs->lock, flags);
 
 	rs->state &= ~TXBUSY;
-	if (!(rs->state & RXBUSY))
+	if (!(rs->state & RXBUSY)) {
+		spi_enable_chip(rs, 0);
 		spi_finalize_current_transfer(rs->master);
+	}
 
 	spin_unlock_irqrestore(&rs->lock, flags);
 }
-- 
1.8.3.2


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