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spi: dw: always reprogram CTRL0

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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>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko 2015-02-24 13:32:13 +02:00 committed by Mark Brown
parent 341c7dc7c0
commit 1a18f9f753
1 changed files with 1 additions and 2 deletions
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3
drivers/spi/spi-dw.c
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@ -476,8 +476,7 @@ static void pump_transfers(unsigned long data)
if (dw_readw(dws, DW_SPI_CTRL0) != cr0 || cs_change || clk_div || imask) { if (dw_readw(dws, DW_SPI_CTRL0) != cr0 || cs_change || clk_div || imask) {
spi_enable_chip(dws, 0); 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_set_clk(dws, chip->clk_div);
spi_chip_sel(dws, spi, 1); spi_chip_sel(dws, spi, 1);