redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

spi/rockchip: do an error handling in proper time 

There was handle_err() callback introduced that is dedicated for error
handling. The patch moves error handling to this callback.

Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Andy Shevchenko 2015-02-27 17:34:16 +02:00 committed by Mark Brown
parent b716c4ffc6
commit 2291793cc4
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/spi/spi-rockchip.c
View File

@ -302,8 +302,8 @@ static int rockchip_spi_prepare_message(struct spi_master *master,
return 0;
}
static int rockchip_spi_unprepare_message(struct spi_master *master,
struct spi_message *msg)
static void rockchip_spi_handle_err(struct spi_master *master,
struct spi_message *msg)
{
unsigned long flags;
struct rockchip_spi *rs = spi_master_get_devdata(master);
@ -313,8 +313,8 @@ static int rockchip_spi_unprepare_message(struct spi_master *master,
/*
* For DMA mode, we need terminate DMA channel and flush
* fifo for the next transfer if DMA thansfer timeout.
* unprepare_message() was called by core if transfer complete
* or timeout. Maybe it is reasonable for error handling here.
* handle_err() was called by core if transfer failed.
* Maybe it is reasonable for error handling here.
*/
if (rs->use_dma) {
if (rs->state & RXBUSY) {
@ -327,6 +327,12 @@ static int rockchip_spi_unprepare_message(struct spi_master *master,
}
spin_unlock_irqrestore(&rs->lock, flags);
}
static int rockchip_spi_unprepare_message(struct spi_master *master,
struct spi_message *msg)
{
struct rockchip_spi *rs = spi_master_get_devdata(master);
spi_enable_chip(rs, 0);
@ -688,6 +694,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
master->prepare_message = rockchip_spi_prepare_message;
master->unprepare_message = rockchip_spi_unprepare_message;
master->transfer_one = rockchip_spi_transfer_one;
master->handle_err = rockchip_spi_handle_err;
rs->dma_tx.ch = dma_request_slave_channel(rs->dev, "tx");
if (!rs->dma_tx.ch)