From patchwork Wed Jul 8 03:32:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 240994 List-Id: U-Boot discussion From: sjg at chromium.org (Simon Glass) Date: Tue, 7 Jul 2020 21:32:32 -0600 Subject: [PATCH v2 31/44] x86: apl: Hide the p2sb on exit from U-Boot In-Reply-To: <20200708033246.2626378-1-sjg@chromium.org> References: <20200708033246.2626378-1-sjg@chromium.org> Message-ID: <20200707213233.v2.31.I68d05c644cec1ef05b0845010253943c44385616@changeid> 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 Reviewed-by: Bin Meng Reviewed-by: Wolfgang Wallner Tested-by: Wolfgang Wallner --- (no changes since v1) arch/x86/cpu/intel_common/p2sb.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/x86/cpu/intel_common/p2sb.c b/arch/x86/cpu/intel_common/p2sb.c index db3d70d92a..361d4c90cb 100644 --- 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, };