[PATCH v2 5/9] power: sequencing: pcie-m2: Create BT node based on the pci_device_id[] table

[Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@kernel.org>]

From: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>

Currently, pwrseq_pcie_m2_create_bt_node() hardcodes the BT compatible for
creating the devicetree node. But to allow adding support for more devices
in the future, create the BT node based on the pci_device_id[] table. The
BT compatible is passed using 'driver_data'.

Co-developed-by: Wei Deng <wei.deng@oss.qualcomm.com>
Signed-off-by: Wei Deng <wei.deng@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
---
 drivers/power/sequencing/pwrseq-pcie-m2.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/power/sequencing/pwrseq-pcie-m2.c b/drivers/power/sequencing/pwrseq-pcie-m2.c
index 0a37a375a89d..efeb25ba9c79 100644
--- a/drivers/power/sequencing/pwrseq-pcie-m2.c
+++ b/drivers/power/sequencing/pwrseq-pcie-m2.c
@@ -185,14 +185,29 @@ static int pwrseq_pcie_m2_match(struct pwrseq_device *pwrseq,
 	return PWRSEQ_NO_MATCH;
 }
 
+static const struct pci_device_id pwrseq_m2_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x1107),
+	  .driver_data = (kernel_ulong_t)"qcom,wcn7850-bt" },
+	{ } /* Sentinel */
+};
+
 static int pwrseq_pcie_m2_create_bt_node(struct pwrseq_pcie_m2_ctx *ctx,
 					struct pwrseq_pci_dev *pci_dev,
-					struct device_node *parent)
+					struct device_node *parent,
+					struct pci_dev *pdev)
 {
+	const struct pci_device_id *id;
 	struct device *dev = ctx->dev;
+	const char *compatible;
 	struct device_node *np;
 	int ret;
 
+	id = pci_match_id(pwrseq_m2_pci_ids, pdev);
+	if (WARN_ON_ONCE(!id)) /* Shouldn't happen */
+		return -ENODEV;
+
+	compatible = (const char *)id->driver_data;
+
 	pci_dev->ocs = kzalloc_obj(*pci_dev->ocs);
 	if (!pci_dev->ocs)
 		return -ENOMEM;
@@ -206,7 +221,7 @@ static int pwrseq_pcie_m2_create_bt_node(struct pwrseq_pcie_m2_ctx *ctx,
 		goto err_destroy_changeset;
 	}
 
-	ret = of_changeset_add_prop_string(pci_dev->ocs, np, "compatible", "qcom,wcn7850-bt");
+	ret = of_changeset_add_prop_string(pci_dev->ocs, np, "compatible", compatible);
 	if (ret) {
 		dev_err(dev, "Failed to add bluetooth compatible: %d\n", ret);
 		goto err_destroy_changeset;
@@ -281,13 +296,14 @@ static int __pwrseq_pcie_m2_create_serdev(struct pwrseq_pcie_m2_ctx *ctx,
 		goto err_free_pci_dev;
 	}
 
-	ret = pwrseq_pcie_m2_create_bt_node(ctx, pci_dev, serdev_parent);
+	ret = pwrseq_pcie_m2_create_bt_node(ctx, pci_dev, serdev_parent, pdev);
 	if (ret)
 		goto err_free_serdev;
 
 	ret = serdev_device_add(pci_dev->serdev);
 	if (ret) {
-		dev_err(dev, "Failed to add serdev for WCN7850: %d\n", ret);
+		dev_err(dev, "Failed to add serdev for PCI device (%s): %d\n",
+			pci_name(pdev), ret);
 		goto err_free_dt_node;
 	}
 
@@ -353,11 +369,6 @@ static void pwrseq_pcie_m2_remove_serdev(struct pwrseq_pcie_m2_ctx *ctx,
 	mutex_unlock(&ctx->list_lock);
 }
 
-static const struct pci_device_id pwrseq_m2_pci_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x1107) },
-	{ } /* Sentinel */
-};
-
 static int pwrseq_pcie_m2_notify(struct notifier_block *nb, unsigned long action,
 			      void *data)
 {

-- 
2.51.0