diff options
Diffstat (limited to 'drivers/mmc/host/omap_hsmmc.c')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index eccedc7d06a..a347ade7664 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -40,6 +40,8 @@ #include <linux/pinctrl/consumer.h> #include <linux/pm_runtime.h> #include <linux/platform_data/mmc-omap.h> +#include <linux/wl12xx.h> +#include <asm-generic/gpio.h> /* OMAP HSMMC Host Controller Registers */ #define OMAP_HSMMC_SYSSTATUS 0x0014 @@ -1716,9 +1718,10 @@ MODULE_DEVICE_TABLE(of, omap_mmc_of_match); static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) { struct omap_mmc_platform_data *pdata; + struct wl12xx_platform_data minnow_wlan_data; struct device_node *np = dev->of_node; u32 bus_width, max_freq; - int cd_gpio, wp_gpio; + int cd_gpio, wp_gpio, wl_host_wake_gpio = -1; cd_gpio = of_get_named_gpio(np, "cd-gpios", 0); wp_gpio = of_get_named_gpio(np, "wp-gpios", 0); @@ -1756,6 +1759,30 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) if (of_find_property(np, "ti,needs-special-hs-handling", NULL)) pdata->slots[0].features |= HSMMC_HAS_HSPE_SUPPORT; + /* wlan_host_wake_gpio is needed by TI WLAN driver in TI proprietary + * code under repo hardware/ti/wlan, retrieve this gpio here from dts + * and pass to TI WLAN driver through the existing interface + * of wl12xx_set_platform_data, so not to chanage TI code + */ + if (!of_property_read_u32(np, "wl_host_wake_gpio", + &wl_host_wake_gpio)) { + pr_info("wl_host_wake_gpio is %d\n", wl_host_wake_gpio); + if (gpio_request(wl_host_wake_gpio, "wifi_irq") < 0) { + printk(KERN_ERR "%s: can't reserve GPIO: %d\n", + __func__, wl_host_wake_gpio); + devm_kfree(dev, pdata); + return NULL; + } + gpio_direction_input(wl_host_wake_gpio); + minnow_wlan_data.irq = __gpio_to_irq(wl_host_wake_gpio); + if (wl12xx_set_platform_data(&minnow_wlan_data)) { + printk(KERN_ERR "%s: Error setting wl18xx data\n", + __func__); + devm_kfree(dev, pdata); + return NULL; + } + } + return pdata; } #else |