[PATCH v7 0/5] Add AP6275P wireless support

@@ -53,6 +53,7 @@ properties:
           - pci14e4,4488  # BCM4377
           - pci14e4,4425  # BCM4378
           - pci14e4,4433  # BCM4387
+          - pci14e4,449d  # BCM43752
 
   reg:
     description: SDIO function number for the device (for most cases

@@ -122,6 +122,14 @@ properties:
       NVRAM. This would normally be filled in by the bootloader from platform
       configuration data.
 
+  clocks:
+    items:
+      - description: External Low Power Clock input (32.768KHz)
+
+  clock-names:
+    items:
+      - const: lpo
+
 required:
   - compatible
   - reg

@@ -283,6 +283,22 @@ &pcie2x1l2 {
 	reset-gpios = <&gpio3 RK_PD1 GPIO_ACTIVE_HIGH>;
 	vpcie3v3-supply = <&vcc3v3_pcie_wl>;
 	status = "okay";
+
+	pcie@0,0 {
+		reg = <0x400000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+		device_type = "pci";
+		bus-range = <0x40 0x4f>;
+
+		wifi: wifi@0,0 {
+			compatible = "brcm,bcm4329-fmac", "pci14e4,449d";
+			reg = <0x410000 0 0 0 0>;
+			clocks = <&hym8563>;
+			clock-names = "lpo";
+		};
+	};
 };
 
 &pwm11 {

@@ -6,6 +6,7 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_net.h>
+#include <linux/clk.h>
 
 #include <defs.h>
 #include "debug.h"

@@ -65,17 +66,21 @@ static int brcmf_of_get_country_codes(struct device *dev,
 	return 0;
 }
 
-void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
+int brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		    struct brcmf_mp_device *settings)
 {
 	struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
 	struct device_node *root, *np = dev->of_node;
+	struct clk *clk;
 	const char *prop;
 	int irq;
 	int err;
 	u32 irqf;
 	u32 val;
 
+	if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
+		return PTR_ERR_OR_ZERO(np);
+
 	/* Apple ARM64 platforms have their own idea of board type, passed in
 	 * via the device tree. They also have an antenna SKU parameter
 	 */

@@ -105,7 +110,7 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
 		if (!board_type) {
 			of_node_put(root);
-			return;
+			return PTR_ERR_OR_ZERO(board_type);
 		}
 		strreplace(board_type, '/', '-');
 		settings->board_type = board_type;

@@ -113,33 +118,37 @@ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		of_node_put(root);
 	}
 
-	if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
-		return;
-
 	err = brcmf_of_get_country_codes(dev, settings);
 	if (err)
 		brcmf_err("failed to get OF country code map (err=%d)\n", err);
 
 	of_get_mac_address(np, settings->mac);
 
-	if (bus_type != BRCMF_BUSTYPE_SDIO)
-		return;
+	if (bus_type == BRCMF_BUSTYPE_SDIO) {
+		if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
+			sdio->drive_strength = val;
 
-	if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
-		sdio->drive_strength = val;
+		/* make sure there are interrupts defined in the node */
+		if (!of_property_present(np, "interrupts"))
+			return PTR_ERR_OR_ZERO(np);
 
-	/* make sure there are interrupts defined in the node */
-	if (!of_property_present(np, "interrupts"))
-		return;
+		irq = irq_of_parse_and_map(np, 0);
+		if (!irq) {
+			brcmf_err("interrupt could not be mapped\n");
+			return -EINVAL;
+		}
+		irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
 
-	irq = irq_of_parse_and_map(np, 0);
-	if (!irq) {
-		brcmf_err("interrupt could not be mapped\n");
-		return;
+		sdio->oob_irq_supported = true;
+		sdio->oob_irq_nr = irq;
+		sdio->oob_irq_flags = irqf;
 	}
-	irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
 
-	sdio->oob_irq_supported = true;
-	sdio->oob_irq_nr = irq;
-	sdio->oob_irq_flags = irqf;
+	clk = devm_clk_get_optional_enabled(dev, "lpo");
+	if (!IS_ERR_OR_NULL(clk)) {
+		brcmf_dbg(INFO, "enabling 32kHz clock\n");
+		return clk_set_rate(clk, 32768);
+	} else {
+		return PTR_ERR_OR_ZERO(clk);
+	}
 }

@@ -3,10 +3,10 @@
  * Copyright (c) 2014 Broadcom Corporation
  */
 #ifdef CONFIG_OF
-void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
+int brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 		    struct brcmf_mp_device *settings);
 #else
-static void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
+static int brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
 			   struct brcmf_mp_device *settings)
 {
 }

@@ -66,6 +66,7 @@ BRCMF_FW_DEF(4365C, "brcmfmac4365c-pcie");
 BRCMF_FW_DEF(4366B, "brcmfmac4366b-pcie");
 BRCMF_FW_DEF(4366C, "brcmfmac4366c-pcie");
 BRCMF_FW_DEF(4371, "brcmfmac4371-pcie");
+BRCMF_FW_CLM_DEF(43752, "brcmfmac43752-pcie");
 BRCMF_FW_CLM_DEF(4377B3, "brcmfmac4377b3-pcie");
 BRCMF_FW_CLM_DEF(4378B1, "brcmfmac4378b1-pcie");
 BRCMF_FW_CLM_DEF(4378B3, "brcmfmac4378b3-pcie");

@@ -104,6 +105,7 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
 	BRCMF_FW_ENTRY(BRCM_CC_43664_CHIP_ID, 0xFFFFFFF0, 4366C),
 	BRCMF_FW_ENTRY(BRCM_CC_43666_CHIP_ID, 0xFFFFFFF0, 4366C),
 	BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371),
+	BRCMF_FW_ENTRY(BRCM_CC_43752_CHIP_ID, 0xFFFFFFFF, 43752),
 	BRCMF_FW_ENTRY(BRCM_CC_4377_CHIP_ID, 0xFFFFFFFF, 4377B3), /* revision ID 4 */
 	BRCMF_FW_ENTRY(BRCM_CC_4378_CHIP_ID, 0x0000000F, 4378B1), /* revision ID 3 */
 	BRCMF_FW_ENTRY(BRCM_CC_4378_CHIP_ID, 0xFFFFFFE0, 4378B3), /* revision ID 5 */

@@ -358,6 +360,7 @@ struct brcmf_pciedev_info {
 			  u16 value);
 	struct brcmf_mp_device *settings;
 	struct brcmf_otp_params otp;
+	bool fwseed;
 #ifdef DEBUG
 	u32 console_interval;
 	bool console_active;

@@ -1720,14 +1723,14 @@ static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo,
 		memcpy_toio(devinfo->tcm + address, nvram, nvram_len);
 		brcmf_fw_nvram_free(nvram);
 
-		if (devinfo->otp.valid) {
+		if (devinfo->fwseed) {
 			size_t rand_len = BRCMF_RANDOM_SEED_LENGTH;
 			struct brcmf_random_seed_footer footer = {
 				.length = cpu_to_le32(rand_len),
 				.magic = cpu_to_le32(BRCMF_RANDOM_SEED_MAGIC),
 			};
 
-			/* Some Apple chips/firmwares expect a buffer of random
+			/* Some chips/firmwares expect a buffer of random
 			 * data to be present before NVRAM
 			 */
 			brcmf_dbg(PCIE, "Download random seed\n");

@@ -2399,6 +2402,37 @@ static void brcmf_pcie_debugfs_create(struct device *dev)
 }
 #endif
 
+struct brcmf_pcie_drvdata {
+	enum brcmf_fwvendor vendor;
+	bool fw_seed;
+};
+
+enum {
+	BRCMF_DRVDATA_CYW,
+	BRCMF_DRVDATA_BCA,
+	BRCMF_DRVDATA_WCC,
+	BRCMF_DRVDATA_WCC_SEED,
+};
+
+static const struct brcmf_pcie_drvdata drvdata[] = {
+	[BRCMF_DRVDATA_CYW] = {
+		.vendor = BRCMF_FWVENDOR_CYW,
+		.fw_seed = false,
+	},
+	[BRCMF_DRVDATA_BCA] = {
+		.vendor = BRCMF_FWVENDOR_BCA,
+		.fw_seed = false,
+	},
+	[BRCMF_DRVDATA_WCC] = {
+		.vendor = BRCMF_FWVENDOR_WCC,
+		.fw_seed = false,
+	},
+	[BRCMF_DRVDATA_WCC_SEED] = {
+		.vendor = BRCMF_FWVENDOR_WCC,
+		.fw_seed = true,
+	},
+};
+
 /* Forward declaration for pci_match_id() call */
 static const struct pci_device_id brcmf_pcie_devid_table[];
 

@@ -2477,9 +2511,10 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	bus->bus_priv.pcie = pcie_bus_dev;
 	bus->ops = &brcmf_pcie_bus_ops;
 	bus->proto_type = BRCMF_PROTO_MSGBUF;
-	bus->fwvid = id->driver_data;
 	bus->chip = devinfo->coreid;
 	bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
+	bus->fwvid = drvdata[id->driver_data].vendor;
+	devinfo->fwseed = drvdata[id->driver_data].fw_seed;
 	dev_set_drvdata(&pdev->dev, bus);
 
 	ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings);

@@ -2665,14 +2700,14 @@ static const struct dev_pm_ops brcmf_pciedrvr_pm = {
 		BRCM_PCIE_VENDOR_ID_BROADCOM, (dev_id), \
 		PCI_ANY_ID, PCI_ANY_ID, \
 		PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, \
-		BRCMF_FWVENDOR_ ## fw_vend \
+		BRCMF_DRVDATA_ ## fw_vend \
 	}
 #define BRCMF_PCIE_DEVICE_SUB(dev_id, subvend, subdev, fw_vend) \
 	{ \
 		BRCM_PCIE_VENDOR_ID_BROADCOM, (dev_id), \
 		(subvend), (subdev), \
 		PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, \
-		BRCMF_FWVENDOR_ ## fw_vend \
+		BRCMF_DRVDATA_ ## fw_vend \
 	}
 
 static const struct pci_device_id brcmf_pcie_devid_table[] = {

@@ -2700,9 +2735,10 @@ static const struct pci_device_id brcmf_pcie_devid_table[] = {
 	BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_5G_DEVICE_ID, BCA),
 	BRCMF_PCIE_DEVICE(BRCM_PCIE_4371_DEVICE_ID, WCC),
 	BRCMF_PCIE_DEVICE(BRCM_PCIE_43596_DEVICE_ID, CYW),
-	BRCMF_PCIE_DEVICE(BRCM_PCIE_4377_DEVICE_ID, WCC),
-	BRCMF_PCIE_DEVICE(BRCM_PCIE_4378_DEVICE_ID, WCC),
-	BRCMF_PCIE_DEVICE(BRCM_PCIE_4387_DEVICE_ID, WCC),
+	BRCMF_PCIE_DEVICE(BRCM_PCIE_4377_DEVICE_ID, WCC_SEED),
+	BRCMF_PCIE_DEVICE(BRCM_PCIE_4378_DEVICE_ID, WCC_SEED),
+	BRCMF_PCIE_DEVICE(BRCM_PCIE_4387_DEVICE_ID, WCC_SEED),
+	BRCMF_PCIE_DEVICE(BRCM_PCIE_43752_DEVICE_ID, WCC_SEED),
 
 	{ /* end: all zeroes */ }
 };

@@ -52,6 +52,7 @@
 #define BRCM_CC_43664_CHIP_ID		43664
 #define BRCM_CC_43666_CHIP_ID		43666
 #define BRCM_CC_4371_CHIP_ID		0x4371
+#define BRCM_CC_43752_CHIP_ID		43752
 #define BRCM_CC_4377_CHIP_ID		0x4377
 #define BRCM_CC_4378_CHIP_ID		0x4378
 #define BRCM_CC_4387_CHIP_ID		0x4387

@@ -94,6 +95,7 @@
 #define BRCM_PCIE_4366_5G_DEVICE_ID	0x43c5
 #define BRCM_PCIE_4371_DEVICE_ID	0x440d
 #define BRCM_PCIE_43596_DEVICE_ID	0x4415
+#define BRCM_PCIE_43752_DEVICE_ID	0x449d
 #define BRCM_PCIE_4377_DEVICE_ID	0x4488
 #define BRCM_PCIE_4378_DEVICE_ID	0x4425
 #define BRCM_PCIE_4387_DEVICE_ID	0x4433