dm: scsi: Use the uclass platform data

At present the two driver-model SCSI drivers use device platform data to
store information that relates to the uclass. It is better to use uclass
platform data in this situation. Update the code to do this.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

drivers/ata/ahci.c

@@ -479,7 +479,7 @@ static int ahci_init_one(pci_dev_t dev)
 		pci_write_config_byte(dev, 0x41, 0xa1);
 #endif
 #else
-	struct scsi_platdata *plat = dev_get_platdata(dev);
+	struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
 	probe_ent->mmio_base = (void *)plat->base;
 #endif
 

drivers/ata/dwc_ahci.c

@@ -28,7 +28,7 @@ struct dwc_ahci_priv {
 static int dwc_ahci_ofdata_to_platdata(struct udevice *dev)
 {
 	struct dwc_ahci_priv *priv = dev_get_priv(dev);
-	struct scsi_platdata *plat = dev_get_platdata(dev);
+	struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
 	fdt_addr_t addr;
 
 	plat->max_id = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(dev),
@@ -96,6 +96,5 @@ U_BOOT_DRIVER(dwc_ahci) = {
 	.ofdata_to_platdata = dwc_ahci_ofdata_to_platdata,
 	.probe	= dwc_ahci_probe,
 	.priv_auto_alloc_size = sizeof(struct dwc_ahci_priv),
-	.platdata_auto_alloc_size = sizeof(struct scsi_platdata),
 	.flags = DM_FLAG_ALLOC_PRIV_DMA,
 };

drivers/ata/sata_ceva.c

@@ -113,7 +113,7 @@ static int ceva_init_sata(ulong mmio)
 
 static int sata_ceva_probe(struct udevice *dev)
 {
-	struct scsi_platdata *plat = dev_get_platdata(dev);
+	struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
 
 	ceva_init_sata(plat->base);
 	return 0;
@@ -126,7 +126,7 @@ static const struct udevice_id sata_ceva_ids[] = {
 
 static int sata_ceva_ofdata_to_platdata(struct udevice *dev)
 {
-	struct scsi_platdata *plat = dev_get_platdata(dev);
+	struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
 
 	plat->base = devfdt_get_addr(dev);
 	if (plat->base == FDT_ADDR_T_NONE)
@@ -145,5 +145,4 @@ U_BOOT_DRIVER(ceva_host_blk) = {
 	.of_match = sata_ceva_ids,
 	.probe = sata_ceva_probe,
 	.ofdata_to_platdata = sata_ceva_ofdata_to_platdata,
-	.platdata_auto_alloc_size = sizeof(struct scsi_platdata),
 };

drivers/scsi/scsi-uclass.c

@@ -24,4 +24,5 @@ UCLASS_DRIVER(scsi) = {
 	.id		= UCLASS_SCSI,
 	.name		= "scsi",
 	.post_probe	 = scsi_post_probe,
+	.per_device_platdata_auto_alloc_size = sizeof(struct scsi_platdata),
 };

drivers/scsi/scsi.c

@@ -619,7 +619,7 @@ int scsi_scan(int mode)
 			return ret;
 
 		/* Get controller platdata */
-		plat = dev_get_platdata(dev);
+		plat = dev_get_uclass_platdata(dev);
 
 		for (i = 0; i < plat->max_id; i++)
 			for (lun = 0; lun < plat->max_lun; lun++)