[4/4] Input: ads7846 - modificatons of _stop()/_disable() conditions

Commit Message

Jason Wang Oct. 14, 2010, 2:14 a.m. UTC

None

Patch

diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index b3a94ca..43fab41 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -644,6 +644,12 @@  omap2_mcspi_txrx_pio(struct spi_device *spi, struct 
spi_transfer *xfer)
                } else if (mcspi_wait_for_reg_bit(chstat_reg,
                                OMAP2_MCSPI_CHSTAT_EOT) < 0)
                        dev_err(&spi->dev, "EOT timed out\n");
+
+               /* disable chan to purge rx datas received in TX_ONLY 
transfer,
+                * otherwise these rx datas will affect the direct following
+                * RX_ONLY transfer.
+                */
+               omap2_mcspi_set_enable(spi, 0);
        }