Commit 8b57cebe authored Sep 16, 2014 by Fan Du Committed by Wolfram Sang Sep 29, 2014

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>

parent 639a26cf

drivers/i2c/busses/i2c-ismt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 */