From patchwork Sat Nov 5 19:49:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Marko X-Patchwork-Id: 13033228 X-Patchwork-Delegate: kvalo@adurom.com 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 7996AC43217 for ; Sat, 5 Nov 2022 19:49:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229776AbiKETtv (ORCPT ); Sat, 5 Nov 2022 15:49:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229479AbiKETtu (ORCPT ); Sat, 5 Nov 2022 15:49:50 -0400 Received: from mail-ej1-x636.google.com (mail-ej1-x636.google.com [IPv6:2a00:1450:4864:20::636]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CBE6910571; Sat, 5 Nov 2022 12:49:48 -0700 (PDT) Received: by mail-ej1-x636.google.com with SMTP id y14so21065793ejd.9; Sat, 05 Nov 2022 12:49:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=XNGGWZ6zU750lS4mF7crv8Fbn/LeLMY1NyuuVpO6zPs=; b=Mh8FZiBPjmFaDt7ZQlPySqFcz/LaxiIfgNYqwSCg2uSzNCiedQL/UTmXUyJSf5WcVd hOE+gJ3rQtKn7FzK4lWyviGpKV4yQtUKwZ+2EJRBfZxrTCdk8NbkKughVGPfDKBHzdoJ Ni5J+cNbeEL6Oz+w+VbghkhnN61a9HaV6Qa85wzfG1/HKaUbmjYZkJzzi278/2NDotjl 5fhoiFh2UDDIz+/TUOVkq8qLMDQ0vzoS67KEBuDDPG6urdOfeiPv2kYYVodhGcnqtVrr yjpEFKcSPGEy6h3NIpYSkb4sjKsEOGY8O8s7YPv0ARWyvkSii9EF1m7D9em+YzPwcMid PKJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=XNGGWZ6zU750lS4mF7crv8Fbn/LeLMY1NyuuVpO6zPs=; b=77exhTKFCQDPplRNXB2O+aArKNqaX7MYizhN0NhjXTmM2lkZvjmkkge6JjIHrm9o0o MQzuKLl0EZVdU9stoGsWcHS7/6cx4QpaQbafNFCw0UQTzKMZOu/qcKOfjTaHsvj9RTnX nEac8LpNJ3H5p81CGHOqZ1irfgdAh5g/YcF95qmWk517WjA7t5KxaNC3f1VW1mYpL1nL PVk0aIO+/Bi5LCcMgcaua/mGokMWKHPC+XYZvJKaq8HuogLGI1RMIlVLGMlmsz4/54Fd aRiX+ROYnM6WHNoBDV8ixKTofHUZAsDEfjpceN+I2cAacKFBkxqnlry0bHv0nhnymv9n OCIw== X-Gm-Message-State: ACrzQf0dD6zCllyKF4N8HBh8WufFvUBCYNJ566afATQQXWtcjraG4N3N +qt6ekZC/jlA/STos5d04Ac= X-Google-Smtp-Source: AMsMyM4PMnBmGhge8boYpR+/vT7VI0pVYOR28ruySN7vCrXt/Z6nw4oy9Hj6y6GGngNX0EON3MI3Ug== X-Received: by 2002:a17:906:847c:b0:7ad:d6c8:35d7 with SMTP id hx28-20020a170906847c00b007add6c835d7mr30749561ejc.170.1667677787252; Sat, 05 Nov 2022 12:49:47 -0700 (PDT) Received: from fedora.. (dh207-96-23.xnet.hr. [88.207.96.23]) by smtp.googlemail.com with ESMTPSA id et19-20020a170907295300b0079b9f7509a0sm1289409ejc.52.2022.11.05.12.49.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Nov 2022 12:49:46 -0700 (PDT) From: Robert Marko To: mani@kernel.org, kvalo@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, gregkh@linuxfoundation.org, elder@linaro.org, hemantk@codeaurora.org, quic_jhugo@quicinc.com, quic_qianyu@quicinc.com, bbhatt@codeaurora.org, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Cc: ansuelsmth@gmail.com, Robert Marko Subject: [PATCH 1/2] bus: mhi: core: add SBL state callback Date: Sat, 5 Nov 2022 20:49:42 +0100 Message-Id: <20221105194943.826847-1-robimarko@gmail.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Add support for SBL state callback in MHI core. It is required for ath11k MHI devices in order to be able to set QRTR instance ID in the SBL state so that QRTR instance ID-s dont conflict in case of multiple PCI/MHI cards or AHB + PCI/MHI card. Setting QRTR instance ID is only possible in SBL state and there is currently no way to ensure that we are in that state, so provide a callback that the controller can trigger off. Signed-off-by: Robert Marko --- drivers/bus/mhi/host/main.c | 1 + include/linux/mhi.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c index df0fbfee7b78..8b03dd1f0cb8 100644 --- a/drivers/bus/mhi/host/main.c +++ b/drivers/bus/mhi/host/main.c @@ -900,6 +900,7 @@ int mhi_process_ctrl_ev_ring(struct mhi_controller *mhi_cntrl, switch (event) { case MHI_EE_SBL: st = DEV_ST_TRANSITION_SBL; + mhi_cntrl->status_cb(mhi_cntrl, MHI_CB_EE_SBL_MODE); break; case MHI_EE_WFW: case MHI_EE_AMSS: diff --git a/include/linux/mhi.h b/include/linux/mhi.h index a5441ad33c74..beffe102dd19 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -34,6 +34,7 @@ struct mhi_buf_info; * @MHI_CB_SYS_ERROR: MHI device entered error state (may recover) * @MHI_CB_FATAL_ERROR: MHI device entered fatal error state * @MHI_CB_BW_REQ: Received a bandwidth switch request from device + * @MHI_CB_EE_SBL_MODE: MHI device entered SBL mode */ enum mhi_callback { MHI_CB_IDLE, @@ -45,6 +46,7 @@ enum mhi_callback { MHI_CB_SYS_ERROR, MHI_CB_FATAL_ERROR, MHI_CB_BW_REQ, + MHI_CB_EE_SBL_MODE, }; /**