From patchwork Thu Nov 10 08:00:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Albert Wang X-Patchwork-Id: 13038394 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C612C433FE for ; Thu, 10 Nov 2022 08:01:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232900AbiKJIBD (ORCPT ); Thu, 10 Nov 2022 03:01:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232874AbiKJIBA (ORCPT ); Thu, 10 Nov 2022 03:01:00 -0500 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 027452495F for ; Thu, 10 Nov 2022 00:01:00 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id y65-20020a25c844000000b006bb773548d5so1160915ybf.5 for ; Thu, 10 Nov 2022 00:00:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=O8vK2CTFtLD5YGZvxAtHHt4MBxX8fsqvLDieKgi2UpY=; b=HaF/H/3MkcFULhHBzOSB9PUz3Skp+KtwKWMvJkFA25o4ce0byRTJRnB1Pftp0lH62r 9A4GwUXfbkSXOn6ueebI8CtEhwk9spUrrxU5UJ1ZuRVgvd0CfdUhd8cP7vG3f3WCtYdq vxDnon+DaljAFnAfHzb+ISco8ApoRXACL/qfXvS/MotOfYrhhiKyn7SC5vTRUrBY+04w bspiXPgGN5190d3+v6SP6zrc2UOdEwict7cVQO3vD4uBtphtjXoK6Ymm/YDPujpJtKY/ zk7k2etjtzYtKvlzfR38vTKUgyy3FaBlKyXuqu+8EtEdO71LM7cm0wwz8INlx9w0cxjl oGxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=O8vK2CTFtLD5YGZvxAtHHt4MBxX8fsqvLDieKgi2UpY=; b=u2CVCAku4UgKwGbHHbJqsGMztK93fpQdsvXfeFX4C72aOPxkpitIDFoItHFrpe3ENc bHx0KWYL7sB01m4x/R53o9vGYpg6UTA+lUixu0DtK25/wAPoY5UthUXWOdsx1hmAb8gU UF/iDrv8BFChQJFpFzQLhRTwxQrdNxKf0xsx6hwvSiz5KeL0eOKmSRQZdI8XmGtqgIbH RtMPFz0ylhmk3DPYUgdgc3q6a/QWUTivEYjl4TEkpkclrrNkbtFp5lTRX5b1D7TwQq8T J92lev0ZkvVSBJV3DFVFM2hGjgsoHJLp1Qat3+tjV3gOo5WU9EBCjfYDvvL8iCSX+0bb zoyA== X-Gm-Message-State: ACrzQf1lZikKCP5/hccIIACxWZ8yOEPKqcMFB41skdmtDypeY+bZkQPq WodzWEPY9Y0yjrZBrgzW61N22yaGB6bP0bn6JS8= X-Google-Smtp-Source: AMsMyM7Kl/6ds+ZaZdLDIKG04z2Za8eDR7Zgxfd3VWiKDhi+1gejDYi9rlhnaZzvtSq4SWaAa+EpbXSDkq15EM7yscQ= X-Received: from albertccwang.ntc.corp.google.com ([2401:fa00:fc:202:2c6f:5c28:5579:9e27]) (user=albertccwang job=sendgmr) by 2002:a81:9c51:0:b0:373:448b:6aea with SMTP id n17-20020a819c51000000b00373448b6aeamr44918198ywa.265.1668067259237; Thu, 10 Nov 2022 00:00:59 -0800 (PST) Date: Thu, 10 Nov 2022 16:00:05 +0800 In-Reply-To: <20221110080006.3563429-1-albertccwang@google.com> Message-Id: <20221110080006.3563429-3-albertccwang@google.com> Mime-Version: 1.0 References: <20221110080006.3563429-1-albertccwang@google.com> X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog Subject: [PATCH v2 2/3] usb: xhci-plat: add xhci_plat_priv_overwrite From: Albert Wang To: mathias.nyman@intel.com, gregkh@linuxfoundation.org Cc: badhri@google.com, howardyen@google.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Howard Yen Add an overwrite to platform specific callback for setting up the xhci_offload_ops, allow vendor to store the xhci_offload_ops and overwrite them when xhci_plat_probe invoked. Signed-off-by: Howard Yen --- Changes in v2: - Use 'offload_ops' instead of 'vendor_ops' drivers/usb/host/xhci-plat.c | 20 ++++++++++++++++++++ drivers/usb/host/xhci-plat.h | 7 +++++++ 2 files changed, 27 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 2f04acb42fa6..11ff89f722b7 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -173,9 +173,26 @@ static const struct of_device_id usb_xhci_of_match[] = { MODULE_DEVICE_TABLE(of, usb_xhci_of_match); #endif +static struct xhci_plat_priv_overwrite xhci_plat_vendor_overwrite; + +int xhci_plat_register_offload_ops(struct xhci_offload_ops *offload_ops) +{ + if (offload_ops == NULL) + return -EINVAL; + + xhci_plat_vendor_overwrite.offload_ops = offload_ops; + + return 0; +} +EXPORT_SYMBOL_GPL(xhci_plat_register_offload_ops); + static int xhci_vendor_init(struct xhci_hcd *xhci) { struct xhci_offload_ops *ops = xhci_offload_get_ops(xhci); + struct xhci_plat_priv *priv = xhci_to_priv(xhci); + + if (xhci_plat_vendor_overwrite.offload_ops) + ops = priv->offload_ops = xhci_plat_vendor_overwrite.offload_ops; if (ops && ops->offload_init) return ops->offload_init(xhci); @@ -185,9 +202,12 @@ static int xhci_vendor_init(struct xhci_hcd *xhci) static void xhci_vendor_cleanup(struct xhci_hcd *xhci) { struct xhci_offload_ops *ops = xhci_offload_get_ops(xhci); + struct xhci_plat_priv *priv = xhci_to_priv(xhci); if (ops && ops->offload_cleanup) ops->offload_cleanup(xhci); + + priv->offload_ops = NULL; } static int xhci_plat_probe(struct platform_device *pdev) diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h index 5aa0d38fa01a..0656d6daa194 100644 --- a/drivers/usb/host/xhci-plat.h +++ b/drivers/usb/host/xhci-plat.h @@ -22,4 +22,11 @@ struct xhci_plat_priv { #define hcd_to_xhci_priv(h) ((struct xhci_plat_priv *)hcd_to_xhci(h)->priv) #define xhci_to_priv(x) ((struct xhci_plat_priv *)(x)->priv) + +struct xhci_plat_priv_overwrite { + struct xhci_offload_ops *offload_ops; +}; + +int xhci_plat_register_offload_ops(struct xhci_offload_ops *offload_ops); + #endif /* _XHCI_PLAT_H */