net wireless wcn36xx adapt wcnss platform to select module by DT

Simplify the resource handling and use DT to indicate which chip type
we are dealing with

Signed-off-by: Andy Green <andy.green@linaro.org>

1 files changed, 52 insertions, 49 deletions

diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx-msm.c b/drivers/net/wireless/ath/wcn36xx/wcn36xx-msm.c
index f6f6c8312578..c9250e0e9902 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx-msm.c
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx-msm.c
@@ -42,7 +42,10 @@ struct wcn36xx_msm {
 	struct completion	smd_compl;
 	smd_channel_t		*smd_ch;
 	struct pinctrl *pinctrl;
-} wmsm;
+	enum wcn36xx_chip_type chip_type;
+};
+
+static struct wcn36xx_msm wmsm;
 
 static int wcn36xx_msm_smsm_change_state(u32 clear_mask, u32 set_mask)
 {
@@ -217,14 +220,47 @@ int wcn36xx_msm_powerup(const struct subsys_desc *desc)
 	return 0;
 }
 
+static const struct of_device_id wcn36xx_msm_match_table[] = {
+	{ .compatible = "qcom,wcn3660", .data = (void *)WCN36XX_CHIP_3660 },
+	{ .compatible = "qcom,wcn3680", .data = (void *)WCN36XX_CHIP_3680 },
+	{ .compatible = "qcom,wcn3620", .data = (void *)WCN36XX_CHIP_3620 },
+	{ }
+};
+
+static int wcn36xx_msm_get_chip_type(void)
+{
+	return wmsm.chip_type;
+}
+
+static struct wcn36xx_msm wmsm = {
+	.ctrl_ops = {
+		.open = wcn36xx_msm_smd_open,
+		.close = wcn36xx_msm_smd_close,
+		.tx = wcn36xx_msm_smd_send_and_wait,
+		.get_hw_mac = wcn36xx_msm_get_hw_mac,
+		.smsm_change_state = wcn36xx_msm_smsm_change_state,
+		.get_chip_type = wcn36xx_msm_get_chip_type,
+	},
+};
+
 static int wcn36xx_msm_probe(struct platform_device *pdev)
 {
 	int ret;
-	struct resource *wcnss_memory;
-	struct resource *tx_irq;
-	struct resource *rx_irq;
+	const struct of_device_id *of_id;
+	struct resource *r;
 	struct resource res[3];
 	struct pinctrl_state *ps;
+	static const char const *rnames[] = {
+		"wcnss_mmio", "wcnss_wlantx_irq", "wcnss_wlanrx_irq" };
+	static const int rtype[] = {
+		IORESOURCE_MEM, IORESOURCE_IRQ, IORESOURCE_IRQ };
+	int n;
+
+	of_id = of_match_node(wcn36xx_msm_match_table, pdev->dev.of_node);
+	if (!of_id)
+		return -EINVAL;
+
+	wmsm.chip_type = (enum wcn36xx_chip_type)of_id->data;
 
 	wmsm.pinctrl = devm_pinctrl_get(&pdev->dev);
 	if (IS_ERR_OR_NULL(wmsm.pinctrl))
@@ -240,52 +276,23 @@ static int wcn36xx_msm_probe(struct platform_device *pdev)
 
 	if (IS_ERR_OR_NULL(pil))
 		pil = subsystem_get("wcnss");
-		if (IS_ERR_OR_NULL(pil))
-			return PTR_ERR(pil);
+	if (IS_ERR_OR_NULL(pil))
+		return PTR_ERR(pil);
 
 	wmsm.core = platform_device_alloc("wcn36xx", -1);
 
-	//dev_err(&pdev->dev, "%s starting\n", __func__);
-
-	memset(res, 0x00, sizeof(res));
-	wmsm.ctrl_ops.open = wcn36xx_msm_smd_open;
-	wmsm.ctrl_ops.close = wcn36xx_msm_smd_close;
-	wmsm.ctrl_ops.tx = wcn36xx_msm_smd_send_and_wait;
-	wmsm.ctrl_ops.get_hw_mac = wcn36xx_msm_get_hw_mac;
-	wmsm.ctrl_ops.smsm_change_state = wcn36xx_msm_smsm_change_state;
-	wcnss_memory =
-		platform_get_resource_byname(pdev,
-					      IORESOURCE_MEM,
-					      "wcnss_mmio");
-	if (wcnss_memory == NULL) {
-		dev_err(&wmsm.core->dev,
-			"Failed to get wcnss wlan memory map.\n");
-		ret = -ENOMEM;
-		return ret;
-	}
-	memcpy(&res[0], wcnss_memory, sizeof(*wcnss_memory));
-
-	tx_irq = platform_get_resource_byname(pdev,
-					      IORESOURCE_IRQ,
-					      "wcnss_wlantx_irq");
-	if (tx_irq == NULL) {
-		dev_err(&wmsm.core->dev, "Failed to get wcnss tx_irq");
-		ret = -ENOMEM;
-		return ret;
-	}
-	memcpy(&res[1], tx_irq, sizeof(*tx_irq));
-
-	rx_irq = platform_get_resource_byname(pdev,
-					      IORESOURCE_IRQ,
-					      "wcnss_wlanrx_irq");
-	if (rx_irq == NULL) {
-		dev_err(&wmsm.core->dev, "Failed to get wcnss rx_irq");
-		ret = -ENOMEM;
-		return ret;
+	for (n = 0; n < ARRAY_SIZE(rnames); n++) {
+		r = platform_get_resource_byname(pdev, rtype[n], rnames[n]);
+		if (!r) {
+			dev_err(&wmsm.core->dev,
+				"Missing resource %s'\n", rnames[n]);
+			ret = -ENOMEM;
+			return ret;
+		}
+		res[n] = *r;
 	}
-	memcpy(&res[2], rx_irq, sizeof(*rx_irq));
 
-	platform_device_add_resources(wmsm.core, res, ARRAY_SIZE(res));
+	platform_device_add_resources(wmsm.core, res, n);
 
 	ret = platform_device_add_data(wmsm.core, &wmsm.ctrl_ops,
 				       sizeof(wmsm.ctrl_ops));
@@ -319,10 +326,6 @@ static int wcn36xx_msm_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id wcn36xx_msm_match_table[] = {
-	{ .compatible = "qcom,wcn36xx" },
-	{ }
-};
 MODULE_DEVICE_TABLE(of, wcn36xx_msm_match_table);
 
 static struct platform_driver wcn36xx_msm_driver = {