AA: mac80211: backport package from trunk r39886

[12.09/openwrt.git] / package / mac80211 / patches / 905-wlcore-sdio-add-wilink-clock-providers.patch

diff --git a/package/mac80211/patches/905-wlcore-sdio-add-wilink-clock-providers.patch b/package/mac80211/patches/905-wlcore-sdio-add-wilink-clock-providers.patch
new file mode 100644 (file)
index 0000000..be1f9ad
--- /dev/null
+++ b/package/mac80211/patches/905-wlcore-sdio-add-wilink-clock-providers.patch
@@ -0,0 +1,50 @@
+Add refclock and tcxoclock as clock providers in WiLink.  These clocks
+are not accesible outside the WiLink module, but they are registered
+in the clock framework anyway.  Only the WiLink chip consumes these
+clocks.
+
+In theory, the WiLink chip could be connected to external clocks
+instead of using these internal clocks, so make the clock consumer
+code generic enough.  If external clocks are used, then the internal
+clock device tree nodes are not necessary, but the external ones must
+be specified.
+
+Signed-off-by: Luciano Coelho <coelho@ti.com>
+Reviewed-by: Felipe Balbi <balbi@ti.com>
+
+--- a/drivers/net/wireless/ti/wlcore/sdio.c
++++ b/drivers/net/wireless/ti/wlcore/sdio.c
+@@ -34,6 +34,7 @@
+ #include <linux/wl12xx.h>
+ #include <linux/pm_runtime.h>
+ #include <linux/printk.h>
++#include <linux/clk-provider.h>
+ 
+ #include "wlcore.h"
+ #include "wl12xx_80211.h"
+@@ -214,10 +215,15 @@ static struct wl1271_if_operations sdio_
+       .set_block_size = wl1271_sdio_set_block_size,
+ };
+ 
++static const struct of_device_id wlcore_sdio_of_clk_match_table[] = {
++      { .compatible = "ti,wilink-clock" },
++};
++
+ static struct wl12xx_platform_data *wlcore_get_pdata_from_of(struct device *dev)
+ {
+       struct wl12xx_platform_data *pdata;
+       struct device_node *np = dev->of_node;
++      struct device_node *clock_node;
+ 
+       if (!np) {
+               np = of_find_matching_node(NULL, dev->driver->of_match_table);
+@@ -241,6 +247,9 @@ static struct wl12xx_platform_data *wlco
+               goto out_free;
+       }
+ 
++      for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
++              of_fixed_clk_setup(clock_node);
++
+       goto out;
+ 
+ out_free: