target/linux/brcm47xx/patches-2.6.23/621-ssb-common-gpio-api.patch

   1 Index: linux-2.6.23.17/drivers/ssb/driver_chipcommon.c
   2 ===================================================================
   3 --- linux-2.6.23.17.orig/drivers/ssb/driver_chipcommon.c
   4 +++ linux-2.6.23.17/drivers/ssb/driver_chipcommon.c
   5 @@ -361,37 +361,31 @@ u32 ssb_chipco_gpio_in(struct ssb_chipco
   6  {
   7         return chipco_read32(cc, SSB_CHIPCO_GPIOIN) & mask;
   8  }
   9 -EXPORT_SYMBOL(ssb_chipco_gpio_in);
  10
  11  u32 ssb_chipco_gpio_out(struct ssb_chipcommon *cc, u32 mask, u32 value)
  12  {
  13         return chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUT, mask, value);
  14  }
  15 -EXPORT_SYMBOL(ssb_chipco_gpio_out);
  16
  17  u32 ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, u32 mask, u32 value)
  18  {
  19         return chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUTEN, mask, value);
  20  }
  21 -EXPORT_SYMBOL(ssb_chipco_gpio_outen);
  22
  23  u32 ssb_chipco_gpio_control(struct ssb_chipcommon *cc, u32 mask, u32 value)
  24  {
  25         return chipco_write32_masked(cc, SSB_CHIPCO_GPIOCTL, mask, value);
  26  }
  27 -EXPORT_SYMBOL(ssb_chipco_gpio_control);
  28
  29  u32 ssb_chipco_gpio_intmask(struct ssb_chipcommon *cc, u32 mask, u32 value)
  30  {
  31         return chipco_write32_masked(cc, SSB_CHIPCO_GPIOIRQ, mask, value);
  32  }
  33 -EXPORT_SYMBOL(ssb_chipco_gpio_intmask);
  34
  35  u32 ssb_chipco_gpio_polarity(struct ssb_chipcommon *cc, u32 mask, u32 value)
  36  {
  37         return chipco_write32_masked(cc, SSB_CHIPCO_GPIOPOL, mask, value);
  38  }
  39 -EXPORT_SYMBOL(ssb_chipco_gpio_polarity);
  40
  41  #ifdef CONFIG_SSB_SERIAL
  42  int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
  43 Index: linux-2.6.23.17/drivers/ssb/driver_extif.c
  44 ===================================================================
  45 --- linux-2.6.23.17.orig/drivers/ssb/driver_extif.c
  46 +++ linux-2.6.23.17/drivers/ssb/driver_extif.c
  47 @@ -122,30 +122,25 @@ u32 ssb_extif_gpio_in(struct ssb_extif *
  48  {
  49         return extif_read32(extif, SSB_EXTIF_GPIO_IN) & mask;
  50  }
  51 -EXPORT_SYMBOL(ssb_extif_gpio_in);
  52
  53  u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value)
  54  {
  55         return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0),
  56                                    mask, value);
  57  }
  58 -EXPORT_SYMBOL(ssb_extif_gpio_out);
  59
  60  u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value)
  61  {
  62         return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0),
  63                                    mask, value);
  64  }
  65 -EXPORT_SYMBOL(ssb_extif_gpio_outen);
  66
  67  u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value)
  68  {
  69         return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTPOL, mask, value);
  70  }
  71 -EXPORT_SYMBOL(ssb_extif_gpio_polarity);
  72
  73  u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value)
  74  {
  75         return extif_write32_masked(extif, SSB_EXTIF_GPIO_INTMASK, mask, value);
  76  }
  77 -EXPORT_SYMBOL(ssb_extif_gpio_intmask);
  78 Index: linux-2.6.23.17/drivers/ssb/embedded.c
  79 ===================================================================
  80 --- linux-2.6.23.17.orig/drivers/ssb/embedded.c
  81 +++ linux-2.6.23.17/drivers/ssb/embedded.c
  82 @@ -11,6 +11,8 @@
  83  #include <linux/ssb/ssb.h>
  84  #include <linux/ssb/ssb_embedded.h>
  85
  86 +#include "ssb_private.h"
  87 +
  88
  89  int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks)
  90  {
  91 @@ -24,3 +26,107 @@ int ssb_watchdog_timer_set(struct ssb_bu
  92         }
  93         return -ENODEV;
  94  }
  95 +
  96 +u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask)
  97 +{
  98 +       unsigned long flags;
  99 +       u32 res = 0;
 100 +
 101 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 102 +       if (ssb_chipco_available(&bus->chipco))
 103 +               res = ssb_chipco_gpio_in(&bus->chipco, mask);
 104 +       else if (ssb_extif_available(&bus->extif))
 105 +               res = ssb_extif_gpio_in(&bus->extif, mask);
 106 +       else
 107 +               SSB_WARN_ON(1);
 108 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 109 +
 110 +       return res;
 111 +}
 112 +EXPORT_SYMBOL(ssb_gpio_in);
 113 +
 114 +u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value)
 115 +{
 116 +       unsigned long flags;
 117 +       u32 res = 0;
 118 +
 119 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 120 +       if (ssb_chipco_available(&bus->chipco))
 121 +               res = ssb_chipco_gpio_out(&bus->chipco, mask, value);
 122 +       else if (ssb_extif_available(&bus->extif))
 123 +               res = ssb_extif_gpio_out(&bus->extif, mask, value);
 124 +       else
 125 +               SSB_WARN_ON(1);
 126 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 127 +
 128 +       return res;
 129 +}
 130 +EXPORT_SYMBOL(ssb_gpio_out);
 131 +
 132 +u32 ssb_gpio_outen(struct ssb_bus *bus, u32 mask, u32 value)
 133 +{
 134 +       unsigned long flags;
 135 +       u32 res = 0;
 136 +
 137 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 138 +       if (ssb_chipco_available(&bus->chipco))
 139 +               res = ssb_chipco_gpio_outen(&bus->chipco, mask, value);
 140 +       else if (ssb_extif_available(&bus->extif))
 141 +               res = ssb_extif_gpio_outen(&bus->extif, mask, value);
 142 +       else
 143 +               SSB_WARN_ON(1);
 144 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 145 +
 146 +       return res;
 147 +}
 148 +EXPORT_SYMBOL(ssb_gpio_outen);
 149 +
 150 +u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value)
 151 +{
 152 +       unsigned long flags;
 153 +       u32 res = 0;
 154 +
 155 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 156 +       if (ssb_chipco_available(&bus->chipco))
 157 +               res = ssb_chipco_gpio_control(&bus->chipco, mask, value);
 158 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 159 +
 160 +       return res;
 161 +}
 162 +EXPORT_SYMBOL(ssb_gpio_control);
 163 +
 164 +u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value)
 165 +{
 166 +       unsigned long flags;
 167 +       u32 res = 0;
 168 +
 169 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 170 +       if (ssb_chipco_available(&bus->chipco))
 171 +               res = ssb_chipco_gpio_intmask(&bus->chipco, mask, value);
 172 +       else if (ssb_extif_available(&bus->extif))
 173 +               res = ssb_extif_gpio_intmask(&bus->extif, mask, value);
 174 +       else
 175 +               SSB_WARN_ON(1);
 176 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 177 +
 178 +       return res;
 179 +}
 180 +EXPORT_SYMBOL(ssb_gpio_intmask);
 181 +
 182 +u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value)
 183 +{
 184 +       unsigned long flags;
 185 +       u32 res = 0;
 186 +
 187 +       spin_lock_irqsave(&bus->gpio_lock, flags);
 188 +       if (ssb_chipco_available(&bus->chipco))
 189 +               res = ssb_chipco_gpio_polarity(&bus->chipco, mask, value);
 190 +       else if (ssb_extif_available(&bus->extif))
 191 +               res = ssb_extif_gpio_polarity(&bus->extif, mask, value);
 192 +       else
 193 +               SSB_WARN_ON(1);
 194 +       spin_unlock_irqrestore(&bus->gpio_lock, flags);
 195 +
 196 +       return res;
 197 +}
 198 +EXPORT_SYMBOL(ssb_gpio_polarity);
 199 Index: linux-2.6.23.17/include/linux/ssb/ssb.h
 200 ===================================================================
 201 --- linux-2.6.23.17.orig/include/linux/ssb/ssb.h
 202 +++ linux-2.6.23.17/include/linux/ssb/ssb.h
 203 @@ -283,6 +283,11 @@ struct ssb_bus {
 204         /* Contents of the SPROM. */
 205         struct ssb_sprom sprom;
 206
 207 +#ifdef CONFIG_SSB_EMBEDDED
 208 +       /* Lock for GPIO register access. */
 209 +       spinlock_t gpio_lock;
 210 +#endif /* EMBEDDED */
 211 +
 212         /* Internal-only stuff follows. Do not touch. */
 213         struct list_head list;
 214  #ifdef CONFIG_SSB_DEBUG
 215 Index: linux-2.6.23.17/include/linux/ssb/ssb_embedded.h
 216 ===================================================================
 217 --- linux-2.6.23.17.orig/include/linux/ssb/ssb_embedded.h
 218 +++ linux-2.6.23.17/include/linux/ssb/ssb_embedded.h
 219 @@ -7,4 +7,12 @@
 220
 221  extern int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks);
 222
 223 +/* Generic GPIO API */
 224 +u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask);
 225 +u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value);
 226 +u32 ssb_gpio_outen(struct ssb_bus *bus, u32 mask, u32 value);
 227 +u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value);
 228 +u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value);
 229 +u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value);
 230 +
 231  #endif /* LINUX_SSB_EMBEDDED_H_ */
 232 Index: linux-2.6.23.17/drivers/ssb/main.c
 233 ===================================================================
 234 --- linux-2.6.23.17.orig/drivers/ssb/main.c
 235 +++ linux-2.6.23.17/drivers/ssb/main.c
 236 @@ -571,6 +571,9 @@ static int ssb_bus_register(struct ssb_b
 237
 238         spin_lock_init(&bus->bar_lock);
 239         INIT_LIST_HEAD(&bus->list);
 240 +#ifdef CONFIG_SSB_EMBEDDED
 241 +       spin_lock_init(&bus->gpio_lock);
 242 +#endif
 243
 244         /* Powerup the bus */
 245         err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);