Introduce function mwifiex_probe_of() to parse common properties.
Since the interface drivers get to decide whether or not the device
tree node was a valid one (depending on the compatible property),
let the interface drivers pass a flag to indicate whether the device
tree node was a valid one.

The function mwifiex_probe_of()nodetself is currently only a place
holder with the next patch adding content to it.

Signed-off-by: Rajat Jain <raja...@google.com>
---
 drivers/net/wireless/marvell/mwifiex/main.c    | 15 ++++++++++++++-
 drivers/net/wireless/marvell/mwifiex/main.h    |  2 +-
 drivers/net/wireless/marvell/mwifiex/pcie.c    |  4 +++-
 drivers/net/wireless/marvell/mwifiex/sdio.c    |  4 +++-
 drivers/net/wireless/marvell/mwifiex/sta_cmd.c |  5 +----
 drivers/net/wireless/marvell/mwifiex/usb.c     |  2 +-
 6 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/main.c 
b/drivers/net/wireless/marvell/mwifiex/main.c
index dcceab2..b2f3d96 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -1552,6 +1552,16 @@ void mwifiex_do_flr(struct mwifiex_adapter *adapter, 
bool prepare)
 }
 EXPORT_SYMBOL_GPL(mwifiex_do_flr);
 
+static void mwifiex_probe_of(struct mwifiex_adapter *adapter)
+{
+       struct device *dev = adapter->dev;
+
+       if (!dev->of_node)
+               return;
+
+       adapter->dt_node = dev->of_node;
+}
+
 /*
  * This function adds the card.
  *
@@ -1568,7 +1578,7 @@ EXPORT_SYMBOL_GPL(mwifiex_do_flr);
 int
 mwifiex_add_card(void *card, struct semaphore *sem,
                 struct mwifiex_if_ops *if_ops, u8 iface_type,
-                struct device *dev)
+                struct device *dev, bool of_node_valid)
 {
        struct mwifiex_adapter *adapter;
 
@@ -1581,6 +1591,9 @@ mwifiex_add_card(void *card, struct semaphore *sem,
        }
 
        adapter->dev = dev;
+       if (of_node_valid)
+               mwifiex_probe_of(adapter);
+
        adapter->iface_type = iface_type;
        adapter->card_sem = sem;
 
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h 
b/drivers/net/wireless/marvell/mwifiex/main.h
index 91218a1..83e0776 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -1412,7 +1412,7 @@ static inline u8 mwifiex_is_tdls_link_setup(u8 status)
 int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
                             u32 func_init_shutdown);
 int mwifiex_add_card(void *, struct semaphore *, struct mwifiex_if_ops *, u8,
-                    struct device *);
+                    struct device *, bool);
 int mwifiex_remove_card(struct mwifiex_adapter *, struct semaphore *);
 
 void mwifiex_get_version(struct mwifiex_adapter *adapter, char *version,
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c 
b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 49b5835..ea423d5 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -194,6 +194,7 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
                                        const struct pci_device_id *ent)
 {
        struct pcie_service_card *card;
+       bool valid_of_node = false;
        int ret;
 
        pr_debug("info: vendor=0x%4.04X device=0x%4.04X rev=%d\n",
@@ -221,10 +222,11 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
                ret = mwifiex_pcie_probe_of(&pdev->dev);
                if (ret)
                        goto err_free;
+               valid_of_node = true;
        }
 
        ret = mwifiex_add_card(card, &add_remove_card_sem, &pcie_ops,
-                              MWIFIEX_PCIE, &pdev->dev);
+                              MWIFIEX_PCIE, &pdev->dev, valid_of_node);
        if (ret) {
                pr_err("%s failed\n", __func__);
                goto err_free;
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c 
b/drivers/net/wireless/marvell/mwifiex/sdio.c
index c95f41f..558743a 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -156,6 +156,7 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct 
sdio_device_id *id)
 {
        int ret;
        struct sdio_mmc_card *card = NULL;
+       bool valid_of_node = false;
 
        pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
                 func->vendor, func->device, func->class, func->num);
@@ -203,10 +204,11 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct 
sdio_device_id *id)
                        dev_err(&func->dev, "SDIO dt node parse failed\n");
                        goto err_disable;
                }
+               valid_of_node = true;
        }
 
        ret = mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
-                              MWIFIEX_SDIO, &func->dev);
+                              MWIFIEX_SDIO, &func->dev, valid_of_node);
        if (ret) {
                dev_err(&func->dev, "add card failed\n");
                goto err_disable;
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c 
b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
index c8dccf5..73e337e 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
@@ -2218,10 +2218,7 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, 
u8 first_sta, bool init)
                 * The cal-data can be read from device tree and/or
                 * a configuration file and downloaded to firmware.
                 */
-               if ((priv->adapter->iface_type == MWIFIEX_SDIO ||
-                   priv->adapter->iface_type == MWIFIEX_PCIE) &&
-                   adapter->dev->of_node) {
-                       adapter->dt_node = adapter->dev->of_node;
+               if (adapter->dt_node) {
                        if (of_property_read_u32(adapter->dt_node,
                                                 "marvell,wakeup-pin",
                                                 &data) == 0) {
diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c 
b/drivers/net/wireless/marvell/mwifiex/usb.c
index f847fff..11c9629 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -476,7 +476,7 @@ static int mwifiex_usb_probe(struct usb_interface *intf,
        usb_set_intfdata(intf, card);
 
        ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops,
-                              MWIFIEX_USB, &card->udev->dev);
+                              MWIFIEX_USB, &card->udev->dev, false);
        if (ret) {
                pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret);
                usb_reset_device(udev);
-- 
2.8.0.rc3.226.g39d4020

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