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Commit 85fa4e1f authored by Alexander Sverdlin's avatar Alexander Sverdlin Committed by Mark Brown
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spi: pl022: Don't touch unspecified bits in interrupt mask 



PL022 Programmers model explicitely states "do not modify undefined register
bits". Correct the "all enable" interrupt mask so that it only enables defined
ones.

Signed-off-by: default avatarAlexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 45b064d7

drivers/spi/spi-pl022.c

+6 −1
Original line number Diff line number Diff line
@@ -285,7 +285,12 @@ 
 */

#define DEFAULT_SSP_REG_IMSC  0x0UL

#define DISABLE_ALL_INTERRUPTS DEFAULT_SSP_REG_IMSC

#define ENABLE_ALL_INTERRUPTS (~DEFAULT_SSP_REG_IMSC)

#define ENABLE_ALL_INTERRUPTS ( \

	SSP_IMSC_MASK_RORIM | \

	SSP_IMSC_MASK_RTIM | \

	SSP_IMSC_MASK_RXIM | \

	SSP_IMSC_MASK_TXIM \

)



#define CLEAR_ALL_INTERRUPTS  0x3