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authorFan Du <fan.du@intel.com>2014-09-16 17:21:03 +0800
committerWolfram Sang <wsa@the-dreams.de>2014-09-29 22:41:19 +0200
commit8b57cebedd3e8a384ab678a69e9b7128eb438a1f (patch)
treea65fbbc347f70474d83bc0533a2be6bce92de6ee /drivers/i2c
parent639a26cf0771cb5a4d61a0f7777882cbda989753 (diff)
i2c: ismt: Use minimum descriptor size
Software is allowed to allocate number of descriptor size from 2 to 256, this i2c controller could process more descriptor, but for i2c core soft ware layer, only one i2c transaction is allowed each time. So here switch to minimum 2 descriptor when initialization. Signed-off-by: Fan Du <fan.du@intel.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-ismt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index d9ee43c80cde..3f6ecbfb9a56 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -81,7 +81,7 @@
#define PCI_DEVICE_ID_INTEL_S1200_SMT1 0x0c5a
#define PCI_DEVICE_ID_INTEL_AVOTON_SMT 0x1f15
-#define ISMT_DESC_ENTRIES 32 /* number of descriptor entries */
+#define ISMT_DESC_ENTRIES 2 /* number of descriptor entries */
#define ISMT_MAX_RETRIES 3 /* number of SMBus retries to attempt */
/* Hardware Descriptor Constants - Control Field */