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Merge tag 'mfd-fixes-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD bug fix from Lee Jones:
 "Increase buffer size om cros-ec to allow for SPI messages"

* tag 'mfd-fixes-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: cros-ec: Fix host command buffer size
Linus Torvalds 8 years ago
parent
commit
aeb4a57681
1 changed files with 2 additions and 1 deletions
  1. 2 1
      include/linux/mfd/cros_ec.h

+ 2 - 1
include/linux/mfd/cros_ec.h

@@ -35,10 +35,11 @@
  * Max bus-specific overhead incurred by request/responses.
  * I2C requires 1 additional byte for requests.
  * I2C requires 2 additional bytes for responses.
+ * SPI requires up to 32 additional bytes for responses.
  * */
 #define EC_PROTO_VERSION_UNKNOWN	0
 #define EC_MAX_REQUEST_OVERHEAD		1
-#define EC_MAX_RESPONSE_OVERHEAD	2
+#define EC_MAX_RESPONSE_OVERHEAD	32
 
 /*
  * Command interface between EC and AP, for LPC, I2C and SPI interfaces.