libahci_platform: add host_flags parameter in ahci_platform_init_host()

Add a dynamic host_flags argument to make ahci_platform_init_host more flexible,
then remove the AHCI_HFLAGS(...) argument from some driver's ata_port_info,
and pass that in as the new argument.

Cc: Hans de Geode <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index 7cb3a85..3a5b4ed 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -283,6 +283,7 @@
  * @pdev: platform device pointer for the host
  * @hpriv: ahci-host private data for the host
  * @pi_template: template for the ata_port_info to use
+ * @host_flags: ahci host flags used in ahci_host_priv
  * @force_port_map: param passed to ahci_save_initial_config
  * @mask_port_map: param passed to ahci_save_initial_config
  *
@@ -296,6 +297,7 @@
 int ahci_platform_init_host(struct platform_device *pdev,
 			    struct ahci_host_priv *hpriv,
 			    const struct ata_port_info *pi_template,
+			    unsigned long host_flags,
 			    unsigned int force_port_map,
 			    unsigned int mask_port_map)
 {
@@ -312,7 +314,8 @@
 	}
 
 	/* prepare host */
-	hpriv->flags |= (unsigned long)pi.private_data;
+	pi.private_data = (void *)host_flags;
+	hpriv->flags |= host_flags;
 
 	ahci_save_initial_config(dev, hpriv, force_port_map, mask_port_map);