diff mbox

Applied "spi: bfin-sport: Calculate transfer speed unconditionally" to the spi tree

Message ID E1ZcIu9-00082J-CC@finisterre (mailing list archive)
State Not Applicable
Headers show

Commit Message

Mark Brown Sept. 16, 2015, 8:02 p.m. UTC 
The patch

   spi: bfin-sport: Calculate transfer speed unconditionally

has been applied to the spi tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From 57b48ab49b7a9ac5ff94402ade2ccb5d63579816 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Tue, 15 Sep 2015 16:26:16 +0300
Subject: [PATCH] spi: bfin-sport: Calculate transfer speed unconditionally

SPI core validates the transfer speed and defaults to spi->max_speed_hz in
case the transfer speed is not set so code here won't use the
chip->baud value (which is derived from spi->max_speed_hz).

Please note driver uses chip->baud at the beginning of message transmission
by calling the bfin_sport_spi_restore_state() but then programs per
transfer speed in bfin_sport_spi_pump_transfers(). I'm not familiar with
the HW so I don't know would it be possible to remove chip->baud completely
by either using constant value in bfin_sport_spi_restore_state() or by
removing the tclkdiv register write there.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/spi/spi-bfin-sport.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index a786931..6c96755 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -352,10 +352,7 @@  bfin_sport_spi_pump_transfers(unsigned long data)
 	transfer = drv_data->cur_transfer;
 	chip = drv_data->cur_chip;
 
-	if (transfer->speed_hz)
-		transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz);
-	else
-		transfer_speed = chip->baud;
+	transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz);
 	bfin_write(&drv_data->regs->tclkdiv, transfer_speed);
 	SSYNC();