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spi: dw-mmio: avoid hardcoded field mask 

Define a mask for the IF_SI_OWNER field.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Alexandre Belloni 2018-08-31 13:40:46 +02:00 committed by Mark Brown
parent 6e249d1ec1
commit c1d8b0825d
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 1 deletions
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3
drivers/spi/spi-dw-mmio.c
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@ -36,6 +36,7 @@ struct dw_spi_mmio {
#define MSCC_CPU_SYSTEM_CTRL_GENERAL_CTRL 0x24
#define OCELOT_IF_SI_OWNER_OFFSET 4
#define JAGUAR2_IF_SI_OWNER_OFFSET 6
#define MSCC_IF_SI_OWNER_MASK GENMASK(1, 0)
#define MSCC_IF_SI_OWNER_SISL 0
#define MSCC_IF_SI_OWNER_SIBM 1
#define MSCC_IF_SI_OWNER_SIMC 2
@ -102,7 +103,7 @@ static int dw_spi_mscc_init(struct platform_device *pdev,
/* Select the owner of the SI interface */
regmap_update_bits(dwsmscc->syscon, MSCC_CPU_SYSTEM_CTRL_GENERAL_CTRL,
0x3 << if_si_owner_offset,
MSCC_IF_SI_OWNER_MASK << if_si_owner_offset,
MSCC_IF_SI_OWNER_SIMC << if_si_owner_offset);
dwsmmio->dws.set_cs = dw_spi_mscc_set_cs;