From: Xinming Hu <[email protected]> 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 <[email protected]> Signed-off-by: Amitkumar Karwar <[email protected]> --- v2: Included vendor and product IDs in compatible strings for PCIe chipsets(Rob Herring) --- .../bindings/net/wireless/marvell-8xxx.txt | 65 ++++++++++++++++++++++ .../bindings/net/wireless/marvell-sd8xxx.txt | 63 --------------------- drivers/net/wireless/marvell/mwifiex/pcie.c | 20 +++++++ drivers/net/wireless/marvell/mwifiex/sta_cmd.c | 3 +- 4 files changed, 87 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..dfe5f8e --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt @@ -0,0 +1,65 @@ +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" + * "pci11ab,2b42" + * "pci1b4b,2b42" + +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 063c707..f1eeb73 100644 --- a/drivers/net/wireless/marvell/mwifiex/pcie.c +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c @@ -37,6 +37,23 @@ 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 = "pci11ab,2b42" }, + { .compatible = "pci1b4b,2b42" }, + { } +}; + +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) @@ -206,6 +223,9 @@ 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 638d30a..f2a7a13 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
