package/kernel/mac80211/patches/615-rt2x00-fix_20mhz_clk.patch

   1 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
   2 +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
   3 @@ -36,6 +36,7 @@
   4  #include <linux/kernel.h>
   5  #include <linux/module.h>
   6  #include <linux/slab.h>
   7 +#include <linux/clk.h>
   8
   9  #include "rt2x00.h"
  10  #include "rt2800lib.h"
  11 @@ -8481,13 +8482,14 @@ static int rt2800_probe_rt(struct rt2x00
  12
  13  int rt2800_probe_clk(struct rt2x00_dev *rt2x00dev)
  14  {
  15 -       struct rt2x00_platform_data *pdata = rt2x00dev->dev->platform_data;
  16         struct hw_mode_spec *spec = &rt2x00dev->spec;
  17 +       struct clk *clk = clk_get(rt2x00dev->dev, NULL);
  18
  19 -       if (!pdata)
  20 -               return -EINVAL;
  21 +       if (IS_ERR(clk))
  22 +               return PTR_ERR(clk);
  23
  24 -       spec->clk_is_20mhz = pdata->clk_is_20mhz;
  25 +       if (clk_get_rate(clk) == 20000000)
  26 +               spec->clk_is_20mhz = 1;
  27
  28         return 0;
  29  }