From: Xinming Hu <huxm@xxxxxxxxxxx>
This patch derives device tree node from pcie bus layer framework.
Device tree bindings file has been renamed(marvell-sd8xxx.txt ->
marvell-8xxx.txt) to accomodate PCIe changes.
Signed-off-by: Xinming Hu <huxm@xxxxxxxxxxx>
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
---
.../bindings/net/wireless/marvell-8xxx.txt | 64 ++++++++++++++++++++++
.../bindings/net/wireless/marvell-sd8xxx.txt | 63 ---------------------
drivers/net/wireless/marvell/mwifiex/pcie.c | 19 +++++++
drivers/net/wireless/marvell/mwifiex/sta_cmd.c | 3 +-
4 files changed, 85 insertions(+), 64 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
delete mode 100644 Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
new file mode 100644
index 0000000..a8a95aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
@@ -0,0 +1,64 @@
+Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
+------
+
+This node provides properties for controlling the marvell sdio/pcie wireless device.
+The node is expected to be specified as a child node to the SDIO/PCIE controller that
+connects the device to the system.
+
+Required properties:
+
+ - compatible : should be one of the following:
+ * "marvell,sd8897"
+ * "marvell,sd8997"
+ * "marvell,pcie8997"
+
+Optional properties:
+
+ - marvell,caldata* : A series of properties with marvell,caldata prefix,
+ represent calibration data downloaded to the device during
+ initialization. This is an array of unsigned 8-bit values.
+ the properties should follow below property name and
+ corresponding array length:
+ "marvell,caldata-txpwrlimit-2g" (length = 566).
+ "marvell,caldata-txpwrlimit-5g-sub0" (length = 502).
+ "marvell,caldata-txpwrlimit-5g-sub1" (length = 688).
+ "marvell,caldata-txpwrlimit-5g-sub2" (length = 750).
+ "marvell,caldata-txpwrlimit-5g-sub3" (length = 502).
+ - marvell,wakeup-pin : a wakeup pin number of wifi chip which will be configured
+ to firmware. Firmware will wakeup the host using this pin
+ during suspend/resume.
+ - interrupt-parent: phandle of the parent interrupt controller
+ - interrupts : interrupt pin number to the cpu. driver will request an irq based on
+ this interrupt number. during system suspend, the irq will be enabled
+ so that the wifi chip can wakeup host platform under certain condition.
+ during system resume, the irq will be disabled to make sure
+ unnecessary interrupt is not received.
+
+Example:
+
+Tx power limit calibration data is configured in below example.
+The calibration data is an array of unsigned values, the length
+can vary between hw versions.
+IRQ pin 38 is used as system wakeup source interrupt. wakeup pin 3 is configured
+so that firmware can wakeup host using this device side pin.
+
+&mmc3 {
+ status = "okay";
+ vmmc-supply = <&wlan_en_reg>;
+ bus-width = <4>;
+ cap-power-off-card;
+ keep-power-in-suspend;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mwifiex: wifi@1 {
+ compatible = "marvell,sd8897";
+ reg = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
+
+ marvell,caldata_00_txpwrlimit_2g_cfg_set = /bits/ 8 <
+ 0x01 0x00 0x06 0x00 0x08 0x02 0x89 0x01>;
+ marvell,wakeup-pin = <3>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
deleted file mode 100644
index c421aba..0000000
--- a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-Marvell 8897/8997 (sd8897/sd8997) SDIO devices
-------
-
-This node provides properties for controlling the marvell sdio wireless device.
-The node is expected to be specified as a child node to the SDIO controller that
-connects the device to the system.
-
-Required properties:
-
- - compatible : should be one of the following:
- * "marvell,sd8897"
- * "marvell,sd8997"
-
-Optional properties:
-
- - marvell,caldata* : A series of properties with marvell,caldata prefix,
- represent calibration data downloaded to the device during
- initialization. This is an array of unsigned 8-bit values.
- the properties should follow below property name and
- corresponding array length:
- "marvell,caldata-txpwrlimit-2g" (length = 566).
- "marvell,caldata-txpwrlimit-5g-sub0" (length = 502).
- "marvell,caldata-txpwrlimit-5g-sub1" (length = 688).
- "marvell,caldata-txpwrlimit-5g-sub2" (length = 750).
- "marvell,caldata-txpwrlimit-5g-sub3" (length = 502).
- - marvell,wakeup-pin : a wakeup pin number of wifi chip which will be configured
- to firmware. Firmware will wakeup the host using this pin
- during suspend/resume.
- - interrupt-parent: phandle of the parent interrupt controller
- - interrupts : interrupt pin number to the cpu. driver will request an irq based on
- this interrupt number. during system suspend, the irq will be enabled
- so that the wifi chip can wakeup host platform under certain condition.
- during system resume, the irq will be disabled to make sure
- unnecessary interrupt is not received.
-
-Example:
-
-Tx power limit calibration data is configured in below example.
-The calibration data is an array of unsigned values, the length
-can vary between hw versions.
-IRQ pin 38 is used as system wakeup source interrupt. wakeup pin 3 is configured
-so that firmware can wakeup host using this device side pin.
-
-&mmc3 {
- status = "okay";
- vmmc-supply = <&wlan_en_reg>;
- bus-width = <4>;
- cap-power-off-card;
- keep-power-in-suspend;
-
- #address-cells = <1>;
- #size-cells = <0>;
- mwifiex: wifi@1 {
- compatible = "marvell,sd8897";
- reg = <1>;
- interrupt-parent = <&pio>;
- interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
-
- marvell,caldata_00_txpwrlimit_2g_cfg_set = /bits/ 8 <
- 0x01 0x00 0x06 0x00 0x08 0x02 0x89 0x01>;
- marvell,wakeup-pin = <3>;
- };
-};
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 3c3c4f1..be4d2b9 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -37,6 +37,22 @@ static struct mwifiex_if_ops pcie_ops;
static struct semaphore add_remove_card_sem;
+static const struct of_device_id mwifiex_pcie_of_match_table[] = {
+ { .compatible = "marvell,pcie8997" },
+ { }
+};
+
+static int mwifiex_pcie_probe_of(struct device *dev)
+{
+ if (!dev->of_node ||
+ !of_match_node(mwifiex_pcie_of_match_table, dev->of_node)) {
+ pr_err("pcie device node not available");
+ return -1;
+ }
+
+ return 0;
+}
+
static int
mwifiex_map_pci_memory(struct mwifiex_adapter *adapter, struct sk_buff *skb,
size_t size, int flags)
@@ -199,6 +215,9 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
card->pcie.can_ext_scan = data->can_ext_scan;
}
+ /* device tree node parsing and platform specific configuration*/
+ mwifiex_pcie_probe_of(&pdev->dev);
+
if (mwifiex_add_card(card, &add_remove_card_sem, &pcie_ops,
MWIFIEX_PCIE)) {
pr_err("%s failed\n", __func__);
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
index 2a162c3..c8dccf5 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
@@ -2218,7 +2218,8 @@ 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 &&
+ 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 (of_property_read_u32(adapter->dt_node,
--
1.9.1
