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[v1,4/5] spi: dw: always reprogram CTRL0

Message ID 1424777534-14246-5-git-send-email-andriy.shevchenko@linux.intel.com (mailing list archive)
State Accepted
Commit 1a18f9f753209977450c94dcd354dd4fa5370966
Headers show

Commit Message

Andy Shevchenko Feb. 24, 2015, 11:32 a.m. UTC 
Instead of an additional reading from the register let's update it even if the
value is kept the same.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 0e0c48b..281121f 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -476,8 +476,7 @@  static void pump_transfers(unsigned long data)
 	if (dw_readw(dws, DW_SPI_CTRL0) != cr0 || cs_change || clk_div || imask) {
 		spi_enable_chip(dws, 0);
 
-		if (dw_readw(dws, DW_SPI_CTRL0) != cr0)
-			dw_writew(dws, DW_SPI_CTRL0, cr0);
+		dw_writew(dws, DW_SPI_CTRL0, cr0);
 
 		spi_set_clk(dws, chip->clk_div);
 		spi_chip_sel(dws, spi, 1);