Fix stack buffer size for IPC writev messages

The stack buffer for IPC messages was 16 bytes, limiting messages to a
size of 4 (each message is 32 bit).
However, the touch screen driver is trying to send messages of size 5....

(AC: Set to 20 bytes having checked the max size allowed)

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 5258749138d6..1b0d0d54cb0f 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -58,8 +58,8 @@
 
 #define IPC_BASE_ADDR     0xFF11C000    /* IPC1 base register address */
 #define IPC_MAX_ADDR      0x100         /* Maximum IPC regisers */
-#define IPC_WWBUF_SIZE    16            /* IPC Write buffer Size */
-#define IPC_RWBUF_SIZE    16            /* IPC Read buffer Size */
+#define IPC_WWBUF_SIZE    20            /* IPC Write buffer Size */
+#define IPC_RWBUF_SIZE    20            /* IPC Read buffer Size */
 #define IPC_I2C_BASE      0xFF12B000    /* I2C control register base address */
 #define IPC_I2C_MAX_ADDR  0x10          /* Maximum I2C regisers */