target/linux/omap/patches-3.12/804-ARM_OMAP3plus_use_cpu0-cpufreq_driver_in_device_tree_supported_boot.patch

   1 From 60c5fc86d01154e2a005bf701f495426ebc81f73 Mon Sep 17 00:00:00 2001
   2 From: Nishanth Menon <nm@ti.com>
   3 Date: Wed, 16 Oct 2013 15:39:03 +0000
   4 Subject: ARM: OMAP3+: use cpu0-cpufreq driver in device tree supported boot
   5
   6 With OMAP3+ and AM33xx supported SoC having defined CPU device tree
   7 entries with operating-points and clock nodes defined, we can now use
   8 the SoC generic cpufreq-cpu0 driver by registering appropriate device.
   9
  10 Cc: Benoit Cousson <bcousson@baylibre.com>
  11 Cc: Kevin Hilman <khilman@deeprootsystems.com>
  12 Cc: Paul Walmsley <paul@pwsan.com>
  13 Cc: Tony Lindgren <tony@atomide.com>
  14 Signed-off-by: Nishanth Menon <nm@ti.com>
  15 Signed-off-by: Tony Lindgren <tony@atomide.com>
  16 ---
  17 --- a/arch/arm/mach-omap2/pm.c
  18 +++ b/arch/arm/mach-omap2/pm.c
  19 @@ -266,7 +266,12 @@ static void __init omap4_init_voltages(v
  20
  21  static inline void omap_init_cpufreq(void)
  22  {
  23 -       struct platform_device_info devinfo = { .name = "omap-cpufreq", };
  24 +       struct platform_device_info devinfo = { };
  25 +
  26 +       if (!of_have_populated_dt())
  27 +               devinfo.name = "omap-cpufreq";
  28 +       else
  29 +               devinfo.name = "cpufreq-cpu0";
  30         platform_device_register_full(&devinfo);
  31  }
  32
  33 @@ -300,10 +305,11 @@ int __init omap2_common_pm_late_init(voi
  34                 /* Smartreflex device init */
  35                 omap_devinit_smartreflex();
  36
  37 -               /* cpufreq dummy device instantiation */
  38 -               omap_init_cpufreq();
  39         }
  40
  41 +       /* cpufreq dummy device instantiation */
  42 +       omap_init_cpufreq();
  43 +
  44  #ifdef CONFIG_SUSPEND
  45         suspend_set_ops(&omap_pm_ops);
  46  #endif