From: Robin Gong <yibin.gong@nxp.com>
To: vkoul@kernel.org, s.hauer@pengutronix.de, l.stach@pengutronix.de,
dan.j.williams@intel.com, gregkh@linuxfoundation.org,
jslaby@suse.com
Cc: linux-serial@vger.kernel.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com
Subject: [PATCH v5 1/7] tty: serial: imx: correct dma cookie status
Date: Wed, 20 Jun 2018 00:56:58 +0800 [thread overview]
Message-ID: <1529427424-12321-2-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1529427424-12321-1-git-send-email-yibin.gong@nxp.com>
Correct to check the right rx dma cookie status in spit of it
works because only one cookie is running in the current sdma.
But it will not once sdma driver support multi cookies
running based on virt-dma.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
drivers/tty/serial/imx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 4e85357..2879407 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1051,7 +1051,7 @@ static void imx_uart_dma_rx_callback(void *data)
unsigned int r_bytes;
unsigned int bd_size;
- status = dmaengine_tx_status(chan, (dma_cookie_t)0, &state);
+ status = dmaengine_tx_status(chan, sport->rx_cookie, &state);
if (status == DMA_ERROR) {
imx_uart_clear_rx_errors(sport);
--
2.7.4
next prev parent reply other threads:[~2018-06-19 9:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 16:56 [PATCH v5 0/7] add virt-dma support for imx-sdma Robin Gong
2018-06-19 16:56 ` Robin Gong [this message]
2018-06-26 19:22 ` [PATCH v5 1/7] tty: serial: imx: correct dma cookie status Uwe Kleine-König
2018-06-29 11:03 ` Vinod
2018-06-19 16:56 ` [PATCH v5 2/7] dmaengine: imx-sdma: factor out a struct sdma_desc from struct sdma_channel Robin Gong
2018-06-19 16:57 ` [PATCH v5 3/7] dmaengine: imx-sdma: add virt-dma support Robin Gong
2018-06-19 16:57 ` [PATCH v5 4/7] dmaengine: imx-sdma: remove useless 'lock' and 'enabled' in 'struct sdma_channel' Robin Gong
2018-06-19 16:57 ` [PATCH v5 5/7] dmaengine: imx-sdma: remove the maximum limitation for bd numbers Robin Gong
2018-06-19 16:57 ` [PATCH v5 6/7] dmaengine: imx-sdma: add sdma_transfer_init to decrease code overlap Robin Gong
2018-06-19 16:57 ` [PATCH v5 7/7] dmaengine: imx-sdma: alloclate bd memory from dma pool Robin Gong
2018-08-06 12:44 ` Lucas Stach
2018-06-22 1:12 ` [PATCH v5 0/7] add virt-dma support for imx-sdma Robin Gong
2018-06-22 6:14 ` Sascha Hauer
2018-06-26 15:04 ` Lucas Stach
2018-06-27 1:18 ` Robin Gong
2018-07-02 2:32 ` Robin Gong
2018-07-02 13:17 ` Vinod
2018-07-03 2:57 ` Robin Gong
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