When running with device-tree, we no longer have a board file
that can set up the platform data for wlcore.
Allow this data to be passed from DT.
Signed-off-by: Ido Yariv <ido@xxxxxxxxxx>
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
v6: parse frequency properties, add wl12xx compatible strings
drivers/net/wireless/ti/wlcore/sdio.c | 93 ++++++++++++++++++++++++++++++++---
1 file 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);
}
--
1.8.5.2.229.g4448466.dirty
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