lkml.org 
[lkml]   [2019]   [Sep]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v4 11/19] spi: tegra20-sflash: use to new `spi_transfer_delay_exec`
    Date
    This conversion to the spi_transfer_delay_exec() helper is not
    straightforward, as it seems that when a delay is present, the controller
    issues a command, and then a delay is followed.

    This change adds support for the new `delay` field which is of type
    `spi_delay` and keeps backwards compatibility with the old `delay_usecs`
    field.

    Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
    ---
    drivers/spi/spi-tegra20-sflash.c | 5 +++--
    1 file changed, 3 insertions(+), 2 deletions(-)

    diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
    index cd714a4f52c6..ff1933e55830 100644
    --- a/drivers/spi/spi-tegra20-sflash.c
    +++ b/drivers/spi/spi-tegra20-sflash.c
    @@ -341,10 +341,11 @@ static int tegra_sflash_transfer_one_message(struct spi_master *master,
    goto exit;
    }
    msg->actual_length += xfer->len;
    - if (xfer->cs_change && xfer->delay_usecs) {
    + if (xfer->cs_change &&
    + (xfer->delay_usecs || xfer->delay.value)) {
    tegra_sflash_writel(tsd, tsd->def_command_reg,
    SPI_COMMAND);
    - udelay(xfer->delay_usecs);
    + spi_transfer_delay_exec(xfer);
    }
    }
    ret = 0;
    --
    2.20.1
    \
     
     \ /
      Last update: 2019-09-26 12:53    [W:4.133 / U:0.040 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site