From patchwork Tue Dec 13 14:10:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Albert Wang X-Patchwork-Id: 634387 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 3F76EC4708D for ; Tue, 13 Dec 2022 14:12:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234255AbiLMOMH (ORCPT ); Tue, 13 Dec 2022 09:12:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235885AbiLMOLW (ORCPT ); Tue, 13 Dec 2022 09:11:22 -0500 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCB0321827 for ; Tue, 13 Dec 2022 06:10:34 -0800 (PST) Received: by mail-pf1-x44a.google.com with SMTP id f14-20020a056a0022ce00b005782e3b4704so2134174pfj.4 for ; Tue, 13 Dec 2022 06:10:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=MKI07Bx0MT4z42ihUE6Ms1XD+dup6KrK+Vea+qzaT8o=; b=rY5gG2Ir0bwLKC240UeBvFVur1c/4YpMgDS5iaNAtxBXer2SEpIADomFcS+TypZdlC gkeQIaiS6z3TZbTHAdjZYch55Z0DDUnWvLdburjIXT3n4wIrOxklAXRDQLtTcMVXFlC8 ECbfIoJ6uxcYjlXlATeMxQdIbGwgdyN2548vWVmy1rpRFVIxVHaM27dfDgfU1zunkSlv Izd9BwW3HOj0bl0Cyxj4pASAwO845iNzolWve6lbUGi0c4UGaVUrhzAW7+oTcXwb/igD +WvSHbrLdVC8gTQvF/WDucwaK+1nDs7notdjny0Qh2WTFf6oDccsp1rNNPYl6STK9Pz9 hd7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=MKI07Bx0MT4z42ihUE6Ms1XD+dup6KrK+Vea+qzaT8o=; b=lfgCqIweZcOtoAzp5Uu75jqoNqGVFNHSSxnP6O2DwIL8RfDlOkeYFgrxideXwFPaLS z/pewYqnv1DyY2WGKDo6S9WRh5Ti7VsEElWEpsvI1OlkPPUJkKUXWHq/9da7CJM8vWH8 SOO5P67Cn+bGeJG6bpaJJvMrvkha1WEB8lnda4K2PlvZhGH/O3k9jaqqWdUHf0XESS4r 4Tj4Xk41hzcn4Hx5yneNYFgjx5ENmjrHY8RectkxyjkUzxhFrYRjr3WpXC4l7MGp72I8 qnbqCkP2IT0TiUKkLwSywFnthiMwy1dE5Glx9NmJnQY/fKbWLkb5NiZuwh+zSaEbIPaV Z7Uw== X-Gm-Message-State: ANoB5pneA/NXWUNgpaUx2KMr/G4RGFooqv5Z4Oa6/3EViuTKuFPkRpNf PuHgwqximXVApgfN7VAsPA/MePoHFCh7mhgGuss= X-Google-Smtp-Source: AA0mqf4ED9AjZvtuotnnanTk1xUkXF09so4t5LMDhw646LjDd+sbIc63QDGMrIyBbxoWYh7eG4Q5e367VTb2GwrDLJE= X-Received: from albertccwang.c.googlers.com ([fda3:e722:ac3:cc00:3:22c1:c0a8:83d]) (user=albertccwang job=sendgmr) by 2002:a17:90a:8407:b0:21a:150d:fe63 with SMTP id j7-20020a17090a840700b0021a150dfe63mr446633pjn.73.1670940634139; Tue, 13 Dec 2022 06:10:34 -0800 (PST) Date: Tue, 13 Dec 2022 14:10:04 +0000 In-Reply-To: <20221213141005.3068792-1-albertccwang@google.com> Mime-Version: 1.0 References: <20221213141005.3068792-1-albertccwang@google.com> X-Mailer: git-send-email 2.39.0.rc1.256.g54fd8350bd-goog Message-ID: <20221213141005.3068792-3-albertccwang@google.com> Subject: [PATCH v3 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, pumahsu@google.com, raychi@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 --- 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 */