target/linux/omap/patches-3.12/901-wlcore-set-irq_flags-in-the-board-files.patch

   1 The platform_quirk element in the platform data was used to change the
   2 way the IRQ is triggered.  When set, the EDGE_IRQ quirk would change
   3 the irqflags used and treat edge trigger differently from the rest.
   4
   5 Instead of hiding this irq flag setting behind the quirk, have the
   6 board files set the flags during initialization.  This will be more
   7 meaningful than driver-specific quirks when we switch to DT.
   8
   9 Additionally, fix missing gpio_request() calls in the boarding files
  10 (so that setting the flags actually works).
  11
  12 Cc: Tony Lindgren <tony@atomide.com>
  13 Cc: Sekhar Nori <nsekhar@ti.com>
  14 Signed-off-by: Luciano Coelho <coelho@ti.com>
  15 Reviewed-by: Felipe Balbi <balbi@ti.com>
  16 Acked-by: Sekhar Nori <nsekhar@ti.com>
  17
  18 ---
  19  arch/arm/mach-davinci/board-da850-evm.c      |  8 +++++++-
  20  arch/arm/mach-omap2/board-omap3evm.c         | 19 ++++++++++++++++++
  21  arch/arm/mach-omap2/board-zoom-peripherals.c | 30 +++++++++++++++++++++++++---
  22  drivers/net/wireless/ti/wlcore/debugfs.c     |  2 +-
  23  drivers/net/wireless/ti/wlcore/main.c        | 17 ++++++++--------
  24  drivers/net/wireless/ti/wlcore/wlcore.h      |  5 ++---
  25  include/linux/wl12xx.h                       |  4 ----
  26  7 files changed, 64 insertions(+), 21 deletions(-)
  27
  28 --- a/arch/arm/mach-davinci/board-da850-evm.c
  29 +++ b/arch/arm/mach-davinci/board-da850-evm.c
  30 @@ -1371,7 +1371,6 @@ static const short da850_wl12xx_pins[] _
  31  static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
  32         .irq                    = -1,
  33         .board_ref_clock        = WL12XX_REFCLOCK_38,
  34 -       .platform_quirks        = WL12XX_PLATFORM_QUIRK_EDGE_IRQ,
  35  };
  36
  37  static __init int da850_wl12xx_init(void)
  38 @@ -1402,6 +1401,13 @@ static __init int da850_wl12xx_init(void
  39                 goto free_wlan_en;
  40         }
  41
  42 +       ret = irq_set_irq_type(gpio_to_irq(DA850_WLAN_IRQ),
  43 +                              IRQ_TYPE_EDGE_RISING);
  44 +       if (ret) {
  45 +               pr_err("Could not set wl12xx irq type: %d\n", ret);
  46 +               goto free;
  47 +       }
  48 +
  49         da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);
  50
  51         ret = wl12xx_set_platform_data(&da850_wl12xx_wlan_data);
  52 --- a/arch/arm/mach-omap2/board-omap3evm.c
  53 +++ b/arch/arm/mach-omap2/board-omap3evm.c
  54 @@ -627,12 +627,31 @@ static void __init omap3_evm_wl12xx_init
  55
  56         /* WL12xx WLAN Init */
  57         omap3evm_wlan_data.irq = gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO);
  58 +
  59 +       ret = gpio_request_one(OMAP3EVM_WLAN_IRQ_GPIO, GPIOF_IN,
  60 +                              "OMAP3EVM_WLAN_IRQ_GPIO");
  61 +       if (ret) {
  62 +               pr_err("error requesting wl12xx gpio: %d\n", ret);
  63 +               goto out;
  64 +       }
  65 +
  66 +       ret = irq_set_irq_type(gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO),
  67 +                              IRQ_TYPE_LEVEL_HIGH);
  68 +       if (ret) {
  69 +               pr_err("error setting wl12xx irq type: %d\n", ret);
  70 +               goto free;
  71 +       }
  72 +
  73         ret = wl12xx_set_platform_data(&omap3evm_wlan_data);
  74         if (ret)
  75                 pr_err("error setting wl12xx data: %d\n", ret);
  76         ret = platform_device_register(&omap3evm_wlan_regulator);
  77         if (ret)
  78                 pr_err("error registering wl12xx device: %d\n", ret);
  79 +out:
  80 +       return;
  81 +free:
  82 +       gpio_free(OMAP3EVM_WLAN_IRQ_GPIO);
  83  #endif
  84  }
  85
  86 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c
  87 +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
  88 @@ -339,16 +339,40 @@ static void enable_board_wakeup_source(v
  89                 OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
  90  }
  91
  92 -void __init zoom_peripherals_init(void)
  93 +static void __init zoom_wilink_init(void)
  94  {
  95         int ret;
  96
  97         omap_zoom_wlan_data.irq = gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO);
  98 -       ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
  99
 100 -       if (ret)
 101 +       ret = gpio_request_one(OMAP_ZOOM_WLAN_IRQ_GPIO, GPIOF_IN,
 102 +                              "OMAP_ZOOM_WLAN_IRQ_GPIO");
 103 +       if (ret) {
 104 +               pr_err("error requesting wl12xx gpio: %d\n", ret);
 105 +               goto out;
 106 +       }
 107 +
 108 +       ret = irq_set_irq_type(gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO),
 109 +                              IRQ_TYPE_LEVEL_HIGH);
 110 +       if (ret) {
 111 +               pr_err("error setting wl12xx irq type: %d\n", ret);
 112 +               goto free;
 113 +       }
 114 +
 115 +       ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
 116 +       if (ret) {
 117                 pr_err("error setting wl12xx data: %d\n", ret);
 118 +               goto free;
 119 +       }
 120 +out:
 121 +       return;
 122 +free:
 123 +       gpio_free(OMAP_ZOOM_WLAN_IRQ_GPIO);
 124 +}
 125
 126 +void __init zoom_peripherals_init(void)
 127 +{
 128 +       zoom_wilink_init();
 129         omap_hsmmc_init(mmc);
 130         omap_i2c_init();
 131         pwm_add_table(zoom_pwm_lookup, ARRAY_SIZE(zoom_pwm_lookup));
 132 --- a/drivers/net/wireless/ti/wlcore/debugfs.c
 133 +++ b/drivers/net/wireless/ti/wlcore/debugfs.c
 134 @@ -486,7 +486,7 @@ static ssize_t driver_state_read(struct
 135         DRIVER_STATE_PRINT_HEX(irq);
 136         /* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
 137         DRIVER_STATE_PRINT_HEX(hw_pg_ver);
 138 -       DRIVER_STATE_PRINT_HEX(platform_quirks);
 139 +       DRIVER_STATE_PRINT_HEX(irq_flags);
 140         DRIVER_STATE_PRINT_HEX(chip.id);
 141         DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 142         DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
 143 --- a/drivers/net/wireless/ti/wlcore/main.c
 144 +++ b/drivers/net/wireless/ti/wlcore/main.c
 145 @@ -27,6 +27,7 @@
 146  #include <linux/vmalloc.h>
 147  #include <linux/wl12xx.h>
 148  #include <linux/interrupt.h>
 149 +#include <linux/irq.h>
 150
 151  #include "wlcore.h"
 152  #include "debug.h"
 153 @@ -516,7 +517,7 @@ static int wlcore_irq_locked(struct wl12
 154          * In case edge triggered interrupt must be used, we cannot iterate
 155          * more than once without introducing race conditions with the hardirq.
 156          */
 157 -       if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
 158 +       if (wl->irq_flags & IRQF_TRIGGER_RISING)
 159                 loopcount = 1;
 160
 161         wl1271_debug(DEBUG_IRQ, "IRQ work");
 162 @@ -5766,7 +5767,6 @@ struct ieee80211_hw *wlcore_alloc_hw(siz
 163         wl->ap_ps_map = 0;
 164         wl->ap_fw_ps_map = 0;
 165         wl->quirks = 0;
 166 -       wl->platform_quirks = 0;
 167         wl->system_hlid = WL12XX_SYSTEM_HLID;
 168         wl->active_sta_count = 0;
 169         wl->active_link_count = 0;
 170 @@ -5902,7 +5902,7 @@ static void wlcore_nvs_cb(const struct f
 171         struct platform_device *pdev = wl->pdev;
 172         struct wlcore_platdev_data *pdev_data = pdev->dev.platform_data;
 173         struct wl12xx_platform_data *pdata = pdev_data->pdata;
 174 -       unsigned long irqflags;
 175 +
 176         int ret;
 177
 178         if (fw) {
 179 @@ -5929,16 +5929,15 @@ static void wlcore_nvs_cb(const struct f
 180         wlcore_adjust_conf(wl);
 181
 182         wl->irq = platform_get_irq(pdev, 0);
 183 -       wl->platform_quirks = pdata->platform_quirks;
 184         wl->if_ops = pdev_data->if_ops;
 185
 186 -       if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
 187 -               irqflags = IRQF_TRIGGER_RISING;
 188 -       else
 189 -               irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
 190 +       wl->irq_flags = irq_get_trigger_type(wl->irq);
 191 +
 192 +       /* Since we don't use the primary handler, we must set ONESHOT */
 193 +       wl->irq_flags |= IRQF_ONESHOT;
 194
 195         ret = request_threaded_irq(wl->irq, NULL, wlcore_irq,
 196 -                                  irqflags, pdev->name, wl);
 197 +                                  wl->irq_flags, pdev->name, wl);
 198         if (ret < 0) {
 199                 wl1271_error("request_irq() failed: %d", ret);
 200                 goto out_free_nvs;
 201 --- a/drivers/net/wireless/ti/wlcore/wlcore.h
 202 +++ b/drivers/net/wireless/ti/wlcore/wlcore.h
 203 @@ -185,6 +185,8 @@ struct wl1271 {
 204
 205         int irq;
 206
 207 +       int irq_flags;
 208 +
 209         spinlock_t wl_lock;
 210
 211         enum wlcore_state state;
 212 @@ -384,9 +386,6 @@ struct wl1271 {
 213         /* Quirks of specific hardware revisions */
 214         unsigned int quirks;
 215
 216 -       /* Platform limitations */
 217 -       unsigned int platform_quirks;
 218 -
 219         /* number of currently active RX BA sessions */
 220         int ba_rx_session_count;
 221
 222 --- a/include/linux/wl12xx.h
 223 +++ b/include/linux/wl12xx.h
 224 @@ -59,13 +59,9 @@ struct wl12xx_platform_data {
 225         int irq;
 226         int board_ref_clock;
 227         int board_tcxo_clock;
 228 -       unsigned long platform_quirks;
 229         bool pwr_in_suspend;
 230  };
 231
 232 -/* Platform does not support level trigger interrupts */
 233 -#define WL12XX_PLATFORM_QUIRK_EDGE_IRQ BIT(0)
 234 -
 235  #ifdef CONFIG_WILINK_PLATFORM_DATA
 236
 237  int wl12xx_set_platform_data(const struct wl12xx_platform_data *data);