brcmfmac: move platform data retrieval code to common

In preparation of module parameters for all devices the module
platform data retrieval is moved from sdio to common. It is still
only used for sdio devices.

Reviewed-by: Arend Van Spriel <[email protected]>
Reviewed-by: Franky (Zhenhui) Lin <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Signed-off-by: Hante Meuleman <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>

Author: Hante Meuleman

drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c

@@ -27,8 +27,6 @@
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/brcmfmac-sdio.h>
 #include <linux/pm_runtime.h>
 #include <linux/suspend.h>
 #include <linux/errno.h>
@@ -46,7 +44,6 @@
 #include "bus.h"
 #include "debug.h"
 #include "sdio.h"
-#include "of.h"
 #include "core.h"
 #include "common.h"
 
@@ -106,18 +103,18 @@ static void brcmf_sdiod_dummy_irqhandler(struct sdio_func *func)
 
 int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 {
+	struct brcmfmac_sdio_platform_data *pdata;
 	int ret = 0;
 	u8 data;
 	u32 addr, gpiocontrol;
 	unsigned long flags;
 
-	if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
+	pdata = sdiodev->pdata;
+	if ((pdata) && (pdata->oob_irq_supported)) {
 		brcmf_dbg(SDIO, "Enter, register OOB IRQ %d\n",
-			  sdiodev->pdata->oob_irq_nr);
-		ret = request_irq(sdiodev->pdata->oob_irq_nr,
-				  brcmf_sdiod_oob_irqhandler,
-				  sdiodev->pdata->oob_irq_flags,
-				  "brcmf_oob_intr",
+			  pdata->oob_irq_nr);
+		ret = request_irq(pdata->oob_irq_nr, brcmf_sdiod_oob_irqhandler,
+				  pdata->oob_irq_flags, "brcmf_oob_intr",
 				  &sdiodev->func[1]->dev);
 		if (ret != 0) {
 			brcmf_err("request_irq failed %d\n", ret);
@@ -129,7 +126,7 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 		sdiodev->irq_en = true;
 		spin_unlock_irqrestore(&sdiodev->irq_en_lock, flags);
 
-		ret = enable_irq_wake(sdiodev->pdata->oob_irq_nr);
+		ret = enable_irq_wake(pdata->oob_irq_nr);
 		if (ret != 0) {
 			brcmf_err("enable_irq_wake failed %d\n", ret);
 			return ret;
@@ -158,7 +155,7 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 
 		/* redirect, configure and enable io for interrupt signal */
 		data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
-		if (sdiodev->pdata->oob_irq_flags & IRQF_TRIGGER_HIGH)
+		if (pdata->oob_irq_flags & IRQF_TRIGGER_HIGH)
 			data |= SDIO_SEPINT_ACT_HI;
 		brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret);
 
@@ -176,9 +173,12 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev *sdiodev)
 
 int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev)
 {
+	struct brcmfmac_sdio_platform_data *pdata;
+
 	brcmf_dbg(SDIO, "Entering\n");
 
-	if ((sdiodev->pdata) && (sdiodev->pdata->oob_irq_supported)) {
+	pdata = sdiodev->pdata;
+	if ((pdata) && (pdata->oob_irq_supported)) {
 		sdio_claim_host(sdiodev->func[1]);
 		brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, 0, NULL);
 		brcmf_sdiod_regwb(sdiodev, SDIO_CCCR_IENx, 0, NULL);
@@ -187,11 +187,10 @@ int brcmf_sdiod_intr_unregister(struct brcmf_sdio_dev *sdiodev)
 		if (sdiodev->oob_irq_requested) {
 			sdiodev->oob_irq_requested = false;
 			if (sdiodev->irq_wake) {
-				disable_irq_wake(sdiodev->pdata->oob_irq_nr);
+				disable_irq_wake(pdata->oob_irq_nr);
 				sdiodev->irq_wake = false;
 			}
-			free_irq(sdiodev->pdata->oob_irq_nr,
-				 &sdiodev->func[1]->dev);
+			free_irq(pdata->oob_irq_nr, &sdiodev->func[1]->dev);
 			sdiodev->irq_en = false;
 		}
 	} else {
@@ -1103,8 +1102,6 @@ static const struct sdio_device_id brcmf_sdmmc_ids[] = {
 };
 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
 
-static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata;
-
 
 static void brcmf_sdiod_acpi_set_power_manageable(struct device *dev,
 						  int val)
@@ -1167,10 +1164,7 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 	dev_set_drvdata(&func->dev, bus_if);
 	dev_set_drvdata(&sdiodev->func[1]->dev, bus_if);
 	sdiodev->dev = &sdiodev->func[1]->dev;
-	sdiodev->pdata = brcmfmac_sdio_pdata;
-
-	if (!sdiodev->pdata)
-		brcmf_of_probe(sdiodev);
+	sdiodev->pdata = brcmf_get_module_param(sdiodev->dev);
 
 #ifdef CONFIG_PM_SLEEP
 	/* wowl can be supported when KEEP_POWER is true and (WAKE_SDIO_IRQ
@@ -1296,7 +1290,7 @@ static const struct dev_pm_ops brcmf_sdio_pm_ops = {
 static struct sdio_driver brcmf_sdmmc_driver = {
 	.probe = brcmf_ops_sdio_probe,
 	.remove = brcmf_ops_sdio_remove,
-	.name = BRCMFMAC_SDIO_PDATA_NAME,
+	.name = KBUILD_MODNAME,
 	.id_table = brcmf_sdmmc_ids,
 	.drv = {
 		.owner = THIS_MODULE,
@@ -1306,37 +1300,6 @@ static struct sdio_driver brcmf_sdmmc_driver = {
 	},
 };
 
-static int __init brcmf_sdio_pd_probe(struct platform_device *pdev)
-{
-	brcmf_dbg(SDIO, "Enter\n");
-
-	brcmfmac_sdio_pdata = dev_get_platdata(&pdev->dev);
-
-	if (brcmfmac_sdio_pdata->power_on)
-		brcmfmac_sdio_pdata->power_on();
-
-	return 0;
-}
-
-static int brcmf_sdio_pd_remove(struct platform_device *pdev)
-{
-	brcmf_dbg(SDIO, "Enter\n");
-
-	if (brcmfmac_sdio_pdata->power_off)
-		brcmfmac_sdio_pdata->power_off();
-
-	sdio_unregister_driver(&brcmf_sdmmc_driver);
-
-	return 0;
-}
-
-static struct platform_driver brcmf_sdio_pd = {
-	.remove		= brcmf_sdio_pd_remove,
-	.driver		= {
-		.name	= BRCMFMAC_SDIO_PDATA_NAME,
-	}
-};
-
 void brcmf_sdio_register(void)
 {
 	int ret;
@@ -1350,19 +1313,6 @@ void brcmf_sdio_exit(void)
 {
 	brcmf_dbg(SDIO, "Enter\n");
 
-	if (brcmfmac_sdio_pdata)
-		platform_driver_unregister(&brcmf_sdio_pd);
-	else
-		sdio_unregister_driver(&brcmf_sdmmc_driver);
+	sdio_unregister_driver(&brcmf_sdmmc_driver);
 }
 
-void __init brcmf_sdio_init(void)
-{
-	int ret;
-
-	brcmf_dbg(SDIO, "Enter\n");
-
-	ret = platform_driver_probe(&brcmf_sdio_pd, brcmf_sdio_pd_probe);
-	if (ret == -ENODEV)
-		brcmf_dbg(SDIO, "No platform data available.\n");
-}

drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c

@@ -27,6 +27,7 @@
 #include "fwil_types.h"
 #include "tracepoint.h"
 #include "common.h"
+#include "of.h"
 
 MODULE_AUTHOR("Broadcom Corporation");
 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
@@ -79,6 +80,7 @@ module_param_named(ignore_probe_fail, brcmf_ignore_probe_fail, int, 0);
 MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging");
 #endif
 
+static struct brcmfmac_sdio_platform_data *brcmfmac_pdata;
 struct brcmf_mp_global_t brcmf_mp_global;
 
 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
@@ -231,6 +233,13 @@ static void brcmf_mp_attach(void)
 		BRCMF_FW_ALTPATH_LEN);
 }
 
+struct brcmfmac_sdio_platform_data *brcmf_get_module_param(struct device *dev)
+{
+	if (!brcmfmac_pdata)
+		brcmf_of_probe(dev, &brcmfmac_pdata);
+	return brcmfmac_pdata;
+}
+
 int brcmf_mp_device_attach(struct brcmf_pub *drvr)
 {
 	drvr->settings = kzalloc(sizeof(*drvr->settings), GFP_ATOMIC);
@@ -253,30 +262,66 @@ void brcmf_mp_device_detach(struct brcmf_pub *drvr)
 	kfree(drvr->settings);
 }
 
+static int __init brcmf_common_pd_probe(struct platform_device *pdev)
+{
+	brcmf_dbg(INFO, "Enter\n");
+
+	brcmfmac_pdata = dev_get_platdata(&pdev->dev);
+
+	if (brcmfmac_pdata->power_on)
+		brcmfmac_pdata->power_on();
+
+	return 0;
+}
+
+static int brcmf_common_pd_remove(struct platform_device *pdev)
+{
+	brcmf_dbg(INFO, "Enter\n");
+
+	if (brcmfmac_pdata->power_off)
+		brcmfmac_pdata->power_off();
+
+	return 0;
+}
+
+static struct platform_driver brcmf_pd = {
+	.remove		= brcmf_common_pd_remove,
+	.driver		= {
+		.name	= BRCMFMAC_SDIO_PDATA_NAME,
+	}
+};
+
 static int __init brcmfmac_module_init(void)
 {
 	int err;
 
 	/* Initialize debug system first */
 	brcmf_debugfs_init();
 
-#ifdef CONFIG_BRCMFMAC_SDIO
-	brcmf_sdio_init();
-#endif
+	/* Get the platform data (if available) for our devices */
+	err = platform_driver_probe(&brcmf_pd, brcmf_common_pd_probe);
+	if (err == -ENODEV)
+		brcmf_dbg(INFO, "No platform data available.\n");
+
 	/* Initialize global module paramaters */
 	brcmf_mp_attach();
 
 	/* Continue the initialization by registering the different busses */
 	err = brcmf_core_init();
-	if (err)
+	if (err) {
 		brcmf_debugfs_exit();
+		if (brcmfmac_pdata)
+			platform_driver_unregister(&brcmf_pd);
+	}
 
 	return err;
 }
 
 static void __exit brcmfmac_module_exit(void)
 {
 	brcmf_core_exit();
+	if (brcmfmac_pdata)
+		platform_driver_unregister(&brcmf_pd);
 	brcmf_debugfs_exit();
 }
 

drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h

@@ -15,6 +15,8 @@
 #ifndef BRCMFMAC_COMMON_H
 #define BRCMFMAC_COMMON_H
 
+#include <linux/platform_device.h>
+#include <linux/platform_data/brcmfmac-sdio.h>
 #include "fwil_types.h"
 
 extern const u8 ALLFFMAC[ETH_ALEN];
@@ -89,6 +91,7 @@ struct brcmf_mp_device {
 	struct cc_translate *country_codes;
 };
 
+struct brcmfmac_sdio_platform_data *brcmf_get_module_param(struct device *dev);
 int brcmf_mp_device_attach(struct brcmf_pub *drvr);
 void brcmf_mp_device_detach(struct brcmf_pub *drvr);
 #ifdef DEBUG

drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c

@@ -16,17 +16,16 @@
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/mmc/card.h>
-#include <linux/platform_data/brcmfmac-sdio.h>
-#include <linux/mmc/sdio_func.h>
 
 #include <defs.h>
 #include "debug.h"
-#include "sdio.h"
+#include "core.h"
+#include "common.h"
+#include "of.h"
 
-void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev)
+void
+brcmf_of_probe(struct device *dev, struct brcmfmac_sdio_platform_data **sdio)
 {
-	struct device *dev = sdiodev->dev;
 	struct device_node *np = dev->of_node;
 	int irq;
 	u32 irqf;
@@ -35,12 +34,12 @@ void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev)
 	if (!np || !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
 		return;
 
-	sdiodev->pdata = devm_kzalloc(dev, sizeof(*sdiodev->pdata), GFP_KERNEL);
-	if (!sdiodev->pdata)
+	*sdio = devm_kzalloc(dev, sizeof(*sdio), GFP_KERNEL);
+	if (!(*sdio))
 		return;
 
 	if (of_property_read_u32(np, "brcm,drive-strength", &val) == 0)
-		sdiodev->pdata->drive_strength = val;
+		(*sdio)->drive_strength = val;
 
 	/* make sure there are interrupts defined in the node */
 	if (!of_find_property(np, "interrupts", NULL))
@@ -53,7 +52,7 @@ void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev)
 	}
 	irqf = irqd_get_trigger_type(irq_get_irq_data(irq));
 
-	sdiodev->pdata->oob_irq_supported = true;
-	sdiodev->pdata->oob_irq_nr = irq;
-	sdiodev->pdata->oob_irq_flags = irqf;
+	(*sdio)->oob_irq_supported = true;
+	(*sdio)->oob_irq_nr = irq;
+	(*sdio)->oob_irq_flags = irqf;
 }

drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.h

@@ -14,9 +14,11 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 #ifdef CONFIG_OF
-void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev);
+void
+brcmf_of_probe(struct device *dev, struct brcmfmac_sdio_platform_data **sdio);
 #else
-static void brcmf_of_probe(struct brcmf_sdio_dev *sdiodev)
+static void brcmf_of_probe(struct device *dev,
+			   struct brcmfmac_sdio_platform_data **sdio)
 {
 }
 #endif /* CONFIG_OF */