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spi: tegra20-sflash: use to new `spi_transfer_delay_exec` 

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>
Link: https://lore.kernel.org/r/20190926105147.7839-12-alexandru.ardelean@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexandru Ardelean 2019-09-26 13:51:39 +03:00 committed by Mark Brown
parent cd13152bce
commit b883d5eda6
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 2 deletions
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5
drivers/spi/spi-tegra20-sflash.c
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@ -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;