target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch

   1 Instead of defining an enumeration with the FW specific values for the
   2 different clock rates, use the actual frequency instead.  Also add a
   3 boolean to specify whether the clock is XTAL or not.
   4
   5 Change all board files to reflect this.
   6
   7 Additionally, this reverts commit 26f45c (ARM: OMAP2+: Legacy support
   8 for wl12xx when booted with devicetree), since this is not be needed
   9 anymore, now that DT support for WiLink is implemented.
  10
  11 Cc: Tony Lindgren <tony@atomide.com>
  12 Cc: Sekhar Nori <nsekhar@ti.com>
  13 Signed-off-by: Luciano Coelho <coelho@ti.com>
  14 Reviewed-by: Felipe Balbi <balbi@ti.com>
  15
  16 ---
  17  arch/arm/mach-davinci/board-da850-evm.c      |  3 +-
  18  arch/arm/mach-omap2/board-omap3evm.c         |  3 +-
  19  arch/arm/mach-omap2/board-zoom-peripherals.c |  3 +-
  20  arch/arm/mach-omap2/devices.c                | 39 -------------------
  21  drivers/net/wireless/ti/wl12xx/main.c        | 58 +++++++++++++++++++++++++++-
  22  drivers/net/wireless/ti/wl12xx/wl12xx.h      | 28 ++++++++++++++
  23  include/linux/wl12xx.h                       | 27 ++-----------
  24  7 files changed, 93 insertions(+), 68 deletions(-)
  25
  26 --- a/arch/arm/mach-davinci/board-da850-evm.c
  27 +++ b/arch/arm/mach-davinci/board-da850-evm.c
  28 @@ -1370,7 +1370,8 @@ static const short da850_wl12xx_pins[] _
  29
  30  static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
  31         .irq                    = -1,
  32 -       .board_ref_clock        = WL12XX_REFCLOCK_38,
  33 +       .ref_clock_freq         = 38400000,
  34 +       .ref_clock_xtal         = false,
  35  };
  36
  37  static __init int da850_wl12xx_init(void)
  38 --- a/arch/arm/mach-omap2/board-omap3evm.c
  39 +++ b/arch/arm/mach-omap2/board-omap3evm.c
  40 @@ -473,7 +473,8 @@ static struct platform_device omap3evm_w
  41  };
  42
  43  struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
  44 -       .board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
  45 +       .ref_clock_freq = 38400000,
  46 +       .ref_clock_xtal = false,
  47  };
  48  #endif
  49
  50 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c
  51 +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
  52 @@ -244,7 +244,8 @@ static struct platform_device *zoom_devi
  53  };
  54
  55  static struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
  56 -       .board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
  57 +       .ref_clock_freq = 26000000,
  58 +       .ref_clock_xtal = false,
  59  };
  60
  61  static struct omap2_hsmmc_info mmc[] = {
  62 --- a/arch/arm/mach-omap2/devices.c
  63 +++ b/arch/arm/mach-omap2/devices.c
  64 @@ -8,7 +8,6 @@
  65   * the Free Software Foundation; either version 2 of the License, or
  66   * (at your option) any later version.
  67   */
  68 -#include <linux/gpio.h>
  69  #include <linux/kernel.h>
  70  #include <linux/init.h>
  71  #include <linux/platform_device.h>
  72 @@ -19,7 +18,6 @@
  73  #include <linux/of.h>
  74  #include <linux/pinctrl/machine.h>
  75  #include <linux/platform_data/omap4-keypad.h>
  76 -#include <linux/wl12xx.h>
  77  #include <linux/platform_data/mailbox-omap.h>
  78
  79  #include <asm/mach-types.h>
  80 @@ -475,40 +473,6 @@ static void omap_init_vout(void)
  81  static inline void omap_init_vout(void) {}
  82  #endif
  83
  84 -#if IS_ENABLED(CONFIG_WL12XX)
  85 -
  86 -static struct wl12xx_platform_data wl12xx __initdata;
  87 -
  88 -void __init omap_init_wl12xx_of(void)
  89 -{
  90 -       int ret;
  91 -
  92 -       if (!of_have_populated_dt())
  93 -               return;
  94 -
  95 -       if (of_machine_is_compatible("ti,omap4-sdp")) {
  96 -               wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;
  97 -               wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;
  98 -               wl12xx.irq = gpio_to_irq(53);
  99 -       } else if (of_machine_is_compatible("ti,omap4-panda")) {
 100 -               wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;
 101 -               wl12xx.irq = gpio_to_irq(53);
 102 -       } else {
 103 -               return;
 104 -       }
 105 -
 106 -       ret = wl12xx_set_platform_data(&wl12xx);
 107 -       if (ret) {
 108 -               pr_err("error setting wl12xx data: %d\n", ret);
 109 -               return;
 110 -       }
 111 -}
 112 -#else
 113 -static inline void omap_init_wl12xx_of(void)
 114 -{
 115 -}
 116 -#endif
 117 -
 118  /*-------------------------------------------------------------------------*/
 119
 120  static int __init omap2_init_devices(void)
 121 @@ -531,9 +495,6 @@ static int __init omap2_init_devices(voi
 122                 omap_init_sham();
 123                 omap_init_aes();
 124                 omap_init_rng();
 125 -       } else {
 126 -               /* These can be removed when bindings are done */
 127 -               omap_init_wl12xx_of();
 128         }
 129         omap_init_sti();
 130         omap_init_vout();
 131 --- a/drivers/net/wireless/ti/wl12xx/main.c
 132 +++ b/drivers/net/wireless/ti/wl12xx/main.c
 133 @@ -1701,6 +1701,43 @@ static struct ieee80211_sta_ht_cap wl12x
 134                 },
 135  };
 136
 137 +static const struct wl12xx_clock wl12xx_refclock_table[] = {
 138 +       { 19200000,     false,  WL12XX_REFCLOCK_19      },
 139 +       { 26000000,     false,  WL12XX_REFCLOCK_26      },
 140 +       { 26000000,     true,   WL12XX_REFCLOCK_26_XTAL },
 141 +       { 38400000,     false,  WL12XX_REFCLOCK_38      },
 142 +       { 38400000,     true,   WL12XX_REFCLOCK_38_XTAL },
 143 +       { 52000000,     false,  WL12XX_REFCLOCK_52      },
 144 +       { 0,            false,  0 }
 145 +};
 146 +
 147 +static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
 148 +       { 16368000,     true,   WL12XX_TCXOCLOCK_16_368 },
 149 +       { 16800000,     true,   WL12XX_TCXOCLOCK_16_8   },
 150 +       { 19200000,     true,   WL12XX_TCXOCLOCK_19_2   },
 151 +       { 26000000,     true,   WL12XX_TCXOCLOCK_26     },
 152 +       { 32736000,     true,   WL12XX_TCXOCLOCK_32_736 },
 153 +       { 33600000,     true,   WL12XX_TCXOCLOCK_33_6   },
 154 +       { 38400000,     true,   WL12XX_TCXOCLOCK_38_4   },
 155 +       { 52000000,     true,   WL12XX_TCXOCLOCK_52     },
 156 +       { 0,            false,  0 }
 157 +};
 158 +
 159 +static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
 160 +                               u32 freq, bool xtal)
 161 +{
 162 +       int i = 0;
 163 +
 164 +       while(table[i].freq != 0) {
 165 +               if ((table[i].freq == freq) &&
 166 +                   (table[i].xtal == xtal))
 167 +                       return table[i].hw_idx;
 168 +               i++;
 169 +       };
 170 +
 171 +       return -EINVAL;
 172 +}
 173 +
 174  static int wl12xx_setup(struct wl1271 *wl)
 175  {
 176         struct wl12xx_priv *priv = wl->priv;
 177 @@ -1722,7 +1759,16 @@ static int wl12xx_setup(struct wl1271 *w
 178         wl12xx_conf_init(wl);
 179
 180         if (!fref_param) {
 181 -               priv->ref_clock = pdata->board_ref_clock;
 182 +               priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
 183 +                                                      pdata->ref_clock_freq,
 184 +                                                      pdata->ref_clock_xtal);
 185 +               if (priv->ref_clock < 0) {
 186 +                       wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
 187 +                               pdata->ref_clock_freq,
 188 +                               pdata->ref_clock_xtal ? "XTAL" : "not XTAL");
 189 +
 190 +                       return priv->ref_clock;
 191 +               }
 192         } else {
 193                 if (!strcmp(fref_param, "19.2"))
 194                         priv->ref_clock = WL12XX_REFCLOCK_19;
 195 @@ -1741,7 +1787,15 @@ static int wl12xx_setup(struct wl1271 *w
 196         }
 197
 198         if (!tcxo_param) {
 199 -               priv->tcxo_clock = pdata->board_tcxo_clock;
 200 +               priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
 201 +                                                       pdata->tcxo_clock_freq,
 202 +                                                       true);
 203 +               if (priv->tcxo_clock < 0) {
 204 +                       wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
 205 +                               pdata->tcxo_clock_freq);
 206 +
 207 +                       return priv->tcxo_clock;
 208 +               }
 209         } else {
 210                 if (!strcmp(tcxo_param, "19.2"))
 211                         priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
 212 --- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
 213 +++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
 214 @@ -79,4 +79,32 @@ struct wl12xx_priv {
 215         struct wl127x_rx_mem_pool_addr *rx_mem_addr;
 216  };
 217
 218 +/* Reference clock values */
 219 +enum {
 220 +       WL12XX_REFCLOCK_19      = 0, /* 19.2 MHz */
 221 +       WL12XX_REFCLOCK_26      = 1, /* 26 MHz */
 222 +       WL12XX_REFCLOCK_38      = 2, /* 38.4 MHz */
 223 +       WL12XX_REFCLOCK_52      = 3, /* 52 MHz */
 224 +       WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
 225 +       WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
 226 +};
 227 +
 228 +/* TCXO clock values */
 229 +enum {
 230 +       WL12XX_TCXOCLOCK_19_2   = 0, /* 19.2MHz */
 231 +       WL12XX_TCXOCLOCK_26     = 1, /* 26 MHz */
 232 +       WL12XX_TCXOCLOCK_38_4   = 2, /* 38.4MHz */
 233 +       WL12XX_TCXOCLOCK_52     = 3, /* 52 MHz */
 234 +       WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
 235 +       WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
 236 +       WL12XX_TCXOCLOCK_16_8   = 6, /* 16.8 MHz */
 237 +       WL12XX_TCXOCLOCK_33_6   = 7, /* 33.6 MHz */
 238 +};
 239 +
 240 +struct wl12xx_clock {
 241 +       u32     freq;
 242 +       bool    xtal;
 243 +       u8      hw_idx;
 244 +};
 245 +
 246  #endif /* __WL12XX_PRIV_H__ */
 247 --- a/include/linux/wl12xx.h
 248 +++ b/include/linux/wl12xx.h
 249 @@ -26,28 +26,6 @@
 250
 251  #include <linux/err.h>
 252
 253 -/* Reference clock values */
 254 -enum {
 255 -       WL12XX_REFCLOCK_19      = 0, /* 19.2 MHz */
 256 -       WL12XX_REFCLOCK_26      = 1, /* 26 MHz */
 257 -       WL12XX_REFCLOCK_38      = 2, /* 38.4 MHz */
 258 -       WL12XX_REFCLOCK_52      = 3, /* 52 MHz */
 259 -       WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
 260 -       WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
 261 -};
 262 -
 263 -/* TCXO clock values */
 264 -enum {
 265 -       WL12XX_TCXOCLOCK_19_2   = 0, /* 19.2MHz */
 266 -       WL12XX_TCXOCLOCK_26     = 1, /* 26 MHz */
 267 -       WL12XX_TCXOCLOCK_38_4   = 2, /* 38.4MHz */
 268 -       WL12XX_TCXOCLOCK_52     = 3, /* 52 MHz */
 269 -       WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
 270 -       WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
 271 -       WL12XX_TCXOCLOCK_16_8   = 6, /* 16.8 MHz */
 272 -       WL12XX_TCXOCLOCK_33_6   = 7, /* 33.6 MHz */
 273 -};
 274 -
 275  struct wl1251_platform_data {
 276         void (*set_power)(bool enable);
 277         /* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
 278 @@ -57,8 +35,9 @@ struct wl1251_platform_data {
 279
 280  struct wl12xx_platform_data {
 281         int irq;
 282 -       int board_ref_clock;
 283 -       int board_tcxo_clock;
 284 +       int ref_clock_freq;     /* in Hertz */
 285 +       bool ref_clock_xtal;    /* specify whether the clock is XTAL or not */
 286 +       int tcxo_clock_freq;    /* in Hertz, tcxo is always XTAL */
 287  };
 288
 289  #ifdef CONFIG_WILINK_PLATFORM_DATA