wl1271: Changed SDIO MMC host claiming
Changed driver to keep MMC host claimed while wlan interface is up.
This keeps MMC stack from powering the SDIO device down.
Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_sdio.c b/drivers/net/wireless/wl12xx/wl1271_sdio.c
index d43e0d4..d9183b6 100644
--- a/drivers/net/wireless/wl12xx/wl1271_sdio.c
+++ b/drivers/net/wireless/wl12xx/wl1271_sdio.c
@@ -107,7 +107,6 @@
int ret;
struct sdio_func *func = wl_to_func(wl);
- sdio_claim_host(func);
if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
wl1271_debug(DEBUG_SPI, "sdio read 52 addr 0x%x, byte 0x%02x",
@@ -126,7 +125,6 @@
if (ret)
wl1271_error("sdio read failed (%d)", ret);
- sdio_release_host(func);
}
static void wl1271_sdio_raw_write(struct wl1271 *wl, int addr, void *buf,
@@ -135,7 +133,6 @@
int ret;
struct sdio_func *func = wl_to_func(wl);
- sdio_claim_host(func);
if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
wl1271_debug(DEBUG_SPI, "sdio write 52 addr 0x%x, byte 0x%02x",
@@ -153,11 +150,19 @@
if (ret)
wl1271_error("sdio write failed (%d)", ret);
- sdio_release_host(func);
}
static void wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
{
+ struct sdio_func *func = wl_to_func(wl);
+
+ if (enable) {
+ sdio_claim_host(func);
+ sdio_enable_func(func);
+ } else {
+ sdio_disable_func(func);
+ sdio_release_host(func);
+ }
}
static struct wl1271_if_operations sdio_ops = {
@@ -219,22 +224,12 @@
if (ret)
goto out_irq;
- sdio_claim_host(func);
sdio_set_drvdata(func, wl);
- ret = sdio_enable_func(func);
- if (ret)
- goto out_release;
-
- sdio_release_host(func);
-
wl1271_notice("initialized");
return 0;
- out_release:
- sdio_release_host(func);
-
out_irq:
free_irq(wl->irq, wl);
@@ -251,10 +246,6 @@
ieee80211_unregister_hw(wl->hw);
- sdio_claim_host(func);
- sdio_disable_func(func);
- sdio_release_host(func);
-
free_irq(wl->irq, wl);
kfree(wl->target_mem_map);