The wl1271 device is using a reference clock that may change
between board to board.
Make the ref_clock parameter configurable by the board
files that set up the device, instead of having a hard coded
value in the driver source itself.
Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/wl1271.h | 1 +
drivers/net/wireless/wl12xx/wl1271_boot.c | 9 +++++----
drivers/net/wireless/wl12xx/wl1271_boot.h | 1 -
drivers/net/wireless/wl12xx/wl1271_sdio.c | 7 ++++---
drivers/net/wireless/wl12xx/wl1271_spi.c | 2 ++
include/linux/wl12xx.h | 1 +
6 files changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/wl1271.h b/drivers/net/wireless/wl12xx/wl1271.h
index a21cdb2..595f1a8 100644
--- a/drivers/net/wireless/wl12xx/wl1271.h
+++ b/drivers/net/wireless/wl12xx/wl1271.h
@@ -357,6 +357,7 @@ struct wl1271 {
void (*set_power)(bool enable);
int irq;
+ int ref_clock;
spinlock_t wl_lock;
diff --git a/drivers/net/wireless/wl12xx/wl1271_boot.c b/drivers/net/wireless/wl12xx/wl1271_boot.c
index 1a36d8a..d3f0521 100644
--- a/drivers/net/wireless/wl12xx/wl1271_boot.c
+++ b/drivers/net/wireless/wl12xx/wl1271_boot.c
@@ -455,17 +455,18 @@ int wl1271_boot(struct wl1271 *wl)
{
int ret = 0;
u32 tmp, clk, pause;
+ int ref_clock = wl->ref_clock;
wl1271_boot_hw_version(wl);
- if (REF_CLOCK == 0 || REF_CLOCK == 2 || REF_CLOCK == 4)
+ if (ref_clock == 0 || ref_clock == 2 || ref_clock == 4)
/* ref clk: 19.2/38.4/38.4-XTAL */
clk = 0x3;
- else if (REF_CLOCK == 1 || REF_CLOCK == 3)
+ else if (ref_clock == 1 || ref_clock == 3)
/* ref clk: 26/52 */
clk = 0x5;
- if (REF_CLOCK != 0) {
+ if (ref_clock != 0) {
u16 val;
/* Set clock type (open drain) */
val = wl1271_top_reg_read(wl, OCP_REG_CLK_TYPE);
@@ -514,7 +515,7 @@ int wl1271_boot(struct wl1271 *wl)
wl1271_debug(DEBUG_BOOT, "clk2 0x%x", clk);
/* 2 */
- clk |= (REF_CLOCK << 1) << 4;
+ clk |= (ref_clock << 1) << 4;
wl1271_write32(wl, DRPW_SCRATCH_START, clk);
wl1271_set_partition(wl, &part_table[PART_WORK]);
diff --git a/drivers/net/wireless/wl12xx/wl1271_boot.h b/drivers/net/wireless/wl12xx/wl1271_boot.h
index f829699..f73b0b1 100644
--- a/drivers/net/wireless/wl12xx/wl1271_boot.h
+++ b/drivers/net/wireless/wl12xx/wl1271_boot.h
@@ -46,7 +46,6 @@ struct wl1271_static_data {
/* delay between retries */
#define INIT_LOOP_DELAY 50
-#define REF_CLOCK 2
#define WU_COUNTER_PAUSE_VAL 0x3FF
#define WELP_ARM_COMMAND_VAL 0x4
diff --git a/drivers/net/wireless/wl12xx/wl1271_sdio.c b/drivers/net/wireless/wl12xx/wl1271_sdio.c
index 75901a6..5967718 100644
--- a/drivers/net/wireless/wl12xx/wl1271_sdio.c
+++ b/drivers/net/wireless/wl12xx/wl1271_sdio.c
@@ -198,11 +198,12 @@ static int __devinit wl1271_probe(struct sdio_func *func,
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
wlan_data = mmc_get_embedded_data(func->card->host);
- if (wlan_data && wlan_data->irq)
+ if (wlan_data) {
wl->irq = wlan_data->irq;
- else {
+ wl->ref_clock = wlan_data->board_ref_clock;
+ } else {
ret = -EINVAL;
- wl1271_error("could not get irq!");
+ wl1271_error("missing wlan data (needed for irq/ref_clk)!");
goto out_free;
}
diff --git a/drivers/net/wireless/wl12xx/wl1271_spi.c b/drivers/net/wireless/wl12xx/wl1271_spi.c
index 85a167f..501b8b4 100644
--- a/drivers/net/wireless/wl12xx/wl1271_spi.c
+++ b/drivers/net/wireless/wl12xx/wl1271_spi.c
@@ -373,6 +373,8 @@ static int __devinit wl1271_probe(struct spi_device *spi)
goto out_free;
}
+ wl->ref_clock = pdata->board_ref_clock;
+
wl->irq = spi->irq;
if (wl->irq < 0) {
wl1271_error("irq missing in platform data");
diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h
index 137ac89..ef6eed9 100644
--- a/include/linux/wl12xx.h
+++ b/include/linux/wl12xx.h
@@ -29,6 +29,7 @@ struct wl12xx_platform_data {
/* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
int irq;
bool use_eeprom;
+ int board_ref_clock;
};
#endif
--
1.7.0.4
--
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