diff options
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/sdio.c | 93 |
1 files changed, 87 insertions, 6 deletions
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c index 2bce00a..b55dc0e 100644 --- a/drivers/net/wireless/ti/wlcore/sdio.c +++ b/drivers/net/wireless/ti/wlcore/sdio.c @@ -34,6 +34,8 @@ #include <linux/wl12xx.h> #include <linux/pm_runtime.h> #include <linux/printk.h> +#include <linux/of.h> +#include <linux/of_irq.h> #include "wlcore.h" #include "wl12xx_80211.h" @@ -214,6 +216,82 @@ static struct wl1271_if_operations sdio_ops = { .set_block_size = wl1271_sdio_set_block_size, }; +#ifdef CONFIG_OF +static const struct of_device_id wlcore_sdio_of_match_table[] = { + { .compatible = "ti,wl1271" }, + { .compatible = "ti,wl1273" }, + { .compatible = "ti,wl1281" }, + { .compatible = "ti,wl1283" }, + { .compatible = "ti,wl1801" }, + { .compatible = "ti,wl1805" }, + { .compatible = "ti,wl1807" }, + { .compatible = "ti,wl1831" }, + { .compatible = "ti,wl1835" }, + { .compatible = "ti,wl1837" }, + { } +}; + +static struct wl12xx_platform_data *wlcore_probe_of(struct device *dev) +{ + struct device_node *np = dev->of_node; + struct wl12xx_platform_data *pdata; + + if (!np || !of_match_node(wlcore_sdio_of_match_table, np)) + return NULL; + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return NULL; + + pdata->irq = irq_of_parse_and_map(np, 0); + if (!pdata->irq) { + dev_err(dev, "No irq in platform data\n"); + kfree(pdata); + return NULL; + } + + pdata->irq_trigger = + irqd_get_trigger_type(irq_get_irq_data(pdata->irq)); + + /* optional clock frequency params */ + of_property_read_u32(np, "ref-clock-frequency", + &pdata->ref_clock_freq); + of_property_read_u32(np, "tcxo-clock-frequency", + &pdata->tcxo_clock_freq); + + return pdata; +} +#else +static struct wl12xx_platform_data *wlcore_probe_of(struct device *dev) +{ + return NULL; +} +#endif + +static struct wl12xx_platform_data * +wlcore_get_platform_data(struct device *dev) +{ + struct wl12xx_platform_data *pdata; + + /* first, look for DT data */ + pdata = wlcore_probe_of(dev); + if (pdata) + return pdata; + + /* if not found - fallback to static platform data */ + pdata = wl12xx_get_platform_data(); + if (!IS_ERR(pdata)) + return kmemdup(pdata, sizeof(*pdata), GFP_KERNEL); + + dev_err(dev, "No platform data set\n"); + return NULL; +} + +static void wlcore_del_platform_data(struct wl12xx_platform_data *pdata) +{ + kfree(pdata); +} + static int wl1271_probe(struct sdio_func *func, const struct sdio_device_id *id) { @@ -245,12 +323,9 @@ static int wl1271_probe(struct sdio_func *func, /* Use block mode for transferring over one block size of data */ func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; - pdev_data.pdata = wl12xx_get_platform_data(); - if (IS_ERR(pdev_data.pdata)) { - ret = PTR_ERR(pdev_data.pdata); - dev_err(glue->dev, "missing wlan platform data: %d\n", ret); + pdev_data.pdata = wlcore_get_platform_data(&func->dev); + if (!pdev_data.pdata) goto out_free_glue; - } /* if sdio can keep power while host is suspended, enable wow */ mmcflags = sdio_get_host_pm_caps(func); @@ -279,7 +354,7 @@ static int wl1271_probe(struct sdio_func *func, if (!glue->core) { dev_err(glue->dev, "can't allocate platform_device"); ret = -ENOMEM; - goto out_free_glue; + goto out_free_pdata; } glue->core->dev.parent = &func->dev; @@ -313,6 +388,9 @@ static int wl1271_probe(struct sdio_func *func, out_dev_put: platform_device_put(glue->core); +out_free_pdata: + wlcore_del_platform_data(pdev_data.pdata); + out_free_glue: kfree(glue); @@ -323,11 +401,14 @@ out: static void wl1271_remove(struct sdio_func *func) { struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func); + struct wlcore_platdev_data *pdev_data = glue->core->dev.platform_data; + struct wl12xx_platform_data *pdata = pdev_data->pdata; /* Undo decrement done above in wl1271_probe */ pm_runtime_get_noresume(&func->dev); platform_device_unregister(glue->core); + wlcore_del_platform_data(pdata); kfree(glue); } |