x86: apl: Hide the p2sb on exit from U-Boot

This confuses Linux's PCI probing so needs to be hidden when booting
Linux. Add a remove() method to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Tested-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>

diff --git a/arch/x86/cpu/intel_common/p2sb.c b/arch/x86/cpu/intel_common/p2sb.c
index db3d70d92a726d987bfc89b0a639d8359533d3d2..361d4c90cb91d233b4e2920eb68ae40f2e4c53f1 100644 (file)
--- a/arch/x86/cpu/intel_common/p2sb.c
+++ b/arch/x86/cpu/intel_common/p2sb.c
@@ -153,6 +153,17 @@ static int intel_p2sb_set_hide(struct udevice *dev, bool hide)
        return 0;
 }
 
+static int p2sb_remove(struct udevice *dev)
+{
+       int ret;
+
+       ret = intel_p2sb_set_hide(dev, true);
+       if (ret)
+               return log_msg_ret("hide", ret);
+
+       return 0;
+}
+
 static int p2sb_child_post_bind(struct udevice *dev)
 {
 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
@@ -183,10 +194,12 @@ U_BOOT_DRIVER(p2sb_drv) = {
        .id             = UCLASS_P2SB,
        .of_match       = p2sb_ids,
        .probe          = p2sb_probe,
+       .remove         = p2sb_remove,
        .ops            = &p2sb_ops,
        .ofdata_to_platdata = p2sb_ofdata_to_platdata,
        .platdata_auto_alloc_size = sizeof(struct p2sb_platdata),
        .per_child_platdata_auto_alloc_size =
                sizeof(struct p2sb_child_platdata),
        .child_post_bind = p2sb_child_post_bind,
+       .flags          = DM_FLAG_OS_PREPARE,
 };