spi: pxa2xx: Convert PCI driver to use spi-pxa2xx code directly

PCI driver has an additional device layer for enumeration.
Remove that layer and use spi-pxa2xx code directly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://msgid.link/r/20240530151117.1130792-12-andriy.shevchenko@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-pxa2xx-pci.c

@@ -10,8 +10,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/platform_device.h>
-#include <linux/property.h>
+#include <linux/pm.h>
 #include <linux/sprintf.h>
 #include <linux/string.h>
 #include <linux/types.h>
@@ -265,10 +264,8 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
 		const struct pci_device_id *ent)
 {
 	const struct pxa_spi_info *info;
-	struct platform_device_info pi;
 	int ret;
-	struct platform_device *pdev;
-	struct pxa2xx_spi_controller spi_pdata;
+	struct pxa2xx_spi_controller *pdata;
 	struct ssp_device *ssp;
 
 	ret = pcim_enable_device(dev);
@@ -279,15 +276,17 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
 	if (ret)
 		return ret;
 
-	memset(&spi_pdata, 0, sizeof(spi_pdata));
+	pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
 
-	ssp = &spi_pdata.ssp;
+	ssp = &pdata->ssp;
 	ssp->dev = &dev->dev;
 	ssp->phys_base = pci_resource_start(dev, 0);
 	ssp->mmio_base = pcim_iomap_table(dev)[0];
 
 	info = (struct pxa_spi_info *)ent->driver_data;
-	ret = info->setup(dev, &spi_pdata);
+	ret = info->setup(dev, pdata);
 	if (ret)
 		return ret;
 
@@ -298,28 +297,12 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
 		return ret;
 	ssp->irq = pci_irq_vector(dev, 0);
 
-	memset(&pi, 0, sizeof(pi));
-	pi.fwnode = dev_fwnode(&dev->dev);
-	pi.parent = &dev->dev;
-	pi.name = "pxa2xx-spi";
-	pi.id = ssp->port_id;
-	pi.data = &spi_pdata;
-	pi.size_data = sizeof(spi_pdata);
-
-	pdev = platform_device_register_full(&pi);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
-
-	pci_set_drvdata(dev, pdev);
-
-	return 0;
+	return pxa2xx_spi_probe(&dev->dev, ssp);
 }
 
 static void pxa2xx_spi_pci_remove(struct pci_dev *dev)
 {
-	struct platform_device *pdev = pci_get_drvdata(dev);
-
-	platform_device_unregister(pdev);
+	pxa2xx_spi_remove(&dev->dev);
 }
 
 static const struct pci_device_id pxa2xx_spi_pci_devices[] = {
@@ -341,6 +324,9 @@ MODULE_DEVICE_TABLE(pci, pxa2xx_spi_pci_devices);
 static struct pci_driver pxa2xx_spi_pci_driver = {
 	.name           = "pxa2xx_spi_pci",
 	.id_table       = pxa2xx_spi_pci_devices,
+	.driver = {
+		.pm	= pm_ptr(&pxa2xx_spi_pm_ops),
+	},
 	.probe          = pxa2xx_spi_pci_probe,
 	.remove         = pxa2xx_spi_pci_remove,
 };
@@ -349,4 +335,5 @@ module_pci_driver(pxa2xx_spi_pci_driver);
 
 MODULE_DESCRIPTION("CE4100/LPSS PCI-SPI glue code for PXA's driver");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(SPI_PXA2xx);
 MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");