wlcore: spi: use private max-buf-size limit

Limit SPI transmissions to the wl12xx max buffer size, as only 12xx was
tested with SPI.

This allows us to remove the global aggregation buffer constant.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>

2 files changed, 8 insertions, 4 deletions

diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index 8da4ed243ebc..a519bc3adec1 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -66,7 +66,13 @@
 /* HW limitation: maximum possible chunk size is 4095 bytes */
 #define WSPI_MAX_CHUNK_SIZE    4092
 
-#define WSPI_MAX_NUM_OF_CHUNKS (WL1271_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
+/*
+ * only support SPI for 12xx - this code should be reworked when 18xx
+ * support is introduced
+ */
+#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
+
+#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
 
 struct wl12xx_spi_glue {
         struct device *dev;
@@ -271,7 +277,7 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
         u32 chunk_len;
         int i;
 
-        WARN_ON(len > WL1271_AGGR_BUFFER_SIZE);
+        WARN_ON(len > SPI_AGGR_BUFFER_SIZE);
 
         spi_message_init(&m);
         memset(t, 0, sizeof(t));
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 58fbdcac6452..a7472bf8e8ba 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -83,8 +83,6 @@
 #define WL1271_AP_BSS_INDEX        0
 #define WL1271_AP_DEF_BEACON_EXP   20
 
-#define WL1271_AGGR_BUFFER_SIZE (5 * PAGE_SIZE)
-
 enum wlcore_state {
         WLCORE_STATE_OFF,
         WLCORE_STATE_RESTARTING,