From patchwork Mon Nov 6 12:46:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qiang Yu X-Patchwork-Id: 13446890 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 34E5DC4332F for ; Mon, 6 Nov 2023 12:47:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231903AbjKFMrN (ORCPT ); Mon, 6 Nov 2023 07:47:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231945AbjKFMq5 (ORCPT ); Mon, 6 Nov 2023 07:46:57 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B6BA1731; Mon, 6 Nov 2023 04:46:37 -0800 (PST) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3A6AS37u003055; Mon, 6 Nov 2023 12:46:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=qcppdkim1; bh=25JboCpuvejyhK55Z3NjDCJXOJSXE9SQ3Ip7BeR890k=; b=k3O617aX4ouqHgoDGKcpv9evJ7o+bWgb0OJne0g7HTifpw4DZLaKxb4wjGwyrvL3++nC VIJcyWhIJNzQY6+PkoLw+/3yEFgPPrhbsEbcw3/ZaKKbbg/frGU4TjL22dz5BGqQGfsv eGHVYiCxiFhXGBCNV9VxRCqCNyTdejXNtzqQ0kBTqAumH96UJ5em1vWDNOmkHO9Jhz9+ LmV0GgjtEPcohhgAXsXRkfaSC4HQogv+sijY092L/j7u246BBprSQJQ+3B6ZKaqLyqxl lJfopuTlnMl5C+GcNnHmlGFmJfyWLENiwNHyiUxIJ9DyuR/kzM2mF3YZugB/uv7DInbM Lw== Received: from aptaippmta02.qualcomm.com (tpe-colo-wan-fw-bordernet.qualcomm.com [103.229.16.4]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3u6xdu8b5m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Nov 2023 12:46:31 +0000 Received: from pps.filterd (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3A6CkTMZ008798; Mon, 6 Nov 2023 12:46:29 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTP id 3u5f1kacje-1; Mon, 06 Nov 2023 12:46:29 +0000 Received: from APTAIPPMTA02.qualcomm.com (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3A6CkTch008793; Mon, 6 Nov 2023 12:46:29 GMT Received: from cbsp-sh-gv.qualcomm.com (CBSP-SH-gv.ap.qualcomm.com [10.231.249.68]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTP id 3A6CkToI008792; Mon, 06 Nov 2023 12:46:29 +0000 Received: by cbsp-sh-gv.qualcomm.com (Postfix, from userid 4098150) id 581205431; Mon, 6 Nov 2023 20:46:28 +0800 (CST) From: Qiang Yu To: mani@kernel.org, quic_jhugo@quicinc.com Cc: mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, quic_cang@quicinc.com, quic_mrana@quicinc.com, Qiang Yu Subject: [PATCH v2 1/2] bus: mhi: host: Add a separate timeout parameter for waiting ready Date: Mon, 6 Nov 2023 20:46:25 +0800 Message-Id: <1699274786-73881-2-git-send-email-qianyu@qti.qualcomm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1699274786-73881-1-git-send-email-qianyu@qti.qualcomm.com> References: <1699274786-73881-1-git-send-email-qianyu@qti.qualcomm.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: fBffH0xL2KSMQ0AVdVW-ORKCiwusI6J4 X-Proofpoint-ORIG-GUID: fBffH0xL2KSMQ0AVdVW-ORKCiwusI6J4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-06_11,2023-11-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 priorityscore=1501 spamscore=0 impostorscore=0 mlxscore=0 malwarescore=0 clxscore=1011 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310240000 definitions=main-2311060103 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Qiang Yu Some devices(eg. SDX75) take longer than expected (default, 8 seconds) to set ready after reboot. Hence add optional ready timeout parameter and pass the appropriate timeout value to mhi_poll_reg_field() to wait enough for device ready as part of power up sequence. Signed-off-by: Qiang Yu Reviewed-by: Manivannan Sadhasivam --- drivers/bus/mhi/host/init.c | 1 + drivers/bus/mhi/host/internal.h | 2 +- drivers/bus/mhi/host/main.c | 5 +++-- drivers/bus/mhi/host/pm.c | 24 +++++++++++++++++------- include/linux/mhi.h | 4 ++++ 5 files changed, 26 insertions(+), 10 deletions(-) diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c index f78aefd..65ceac1 100644 --- a/drivers/bus/mhi/host/init.c +++ b/drivers/bus/mhi/host/init.c @@ -881,6 +881,7 @@ static int parse_config(struct mhi_controller *mhi_cntrl, if (!mhi_cntrl->timeout_ms) mhi_cntrl->timeout_ms = MHI_TIMEOUT_MS; + mhi_cntrl->ready_timeout_ms = config->ready_timeout_ms; mhi_cntrl->bounce_buf = config->use_bounce_buf; mhi_cntrl->buffer_len = config->buf_len; if (!mhi_cntrl->buffer_len) diff --git a/drivers/bus/mhi/host/internal.h b/drivers/bus/mhi/host/internal.h index 2e139e7..30ac415 100644 --- a/drivers/bus/mhi/host/internal.h +++ b/drivers/bus/mhi/host/internal.h @@ -321,7 +321,7 @@ int __must_check mhi_read_reg_field(struct mhi_controller *mhi_cntrl, u32 *out); int __must_check mhi_poll_reg_field(struct mhi_controller *mhi_cntrl, void __iomem *base, u32 offset, u32 mask, - u32 val, u32 delayus); + u32 val, u32 delayus, u32 timeout_ms); void mhi_write_reg(struct mhi_controller *mhi_cntrl, void __iomem *base, u32 offset, u32 val); int __must_check mhi_write_reg_field(struct mhi_controller *mhi_cntrl, diff --git a/drivers/bus/mhi/host/main.c b/drivers/bus/mhi/host/main.c index dcf627b..6cf1145 100644 --- a/drivers/bus/mhi/host/main.c +++ b/drivers/bus/mhi/host/main.c @@ -40,10 +40,11 @@ int __must_check mhi_read_reg_field(struct mhi_controller *mhi_cntrl, int __must_check mhi_poll_reg_field(struct mhi_controller *mhi_cntrl, void __iomem *base, u32 offset, - u32 mask, u32 val, u32 delayus) + u32 mask, u32 val, u32 delayus, + u32 timeout_ms) { int ret; - u32 out, retry = (mhi_cntrl->timeout_ms * 1000) / delayus; + u32 out, retry = (timeout_ms * 1000) / delayus; while (retry--) { ret = mhi_read_reg_field(mhi_cntrl, base, offset, mask, &out); diff --git a/drivers/bus/mhi/host/pm.c b/drivers/bus/mhi/host/pm.c index 8a4362d..a2f2fee 100644 --- a/drivers/bus/mhi/host/pm.c +++ b/drivers/bus/mhi/host/pm.c @@ -163,6 +163,7 @@ int mhi_ready_state_transition(struct mhi_controller *mhi_cntrl) enum mhi_pm_state cur_state; struct device *dev = &mhi_cntrl->mhi_dev->dev; u32 interval_us = 25000; /* poll register field every 25 milliseconds */ + u32 timeout_ms; int ret, i; /* Check if device entered error state */ @@ -173,14 +174,18 @@ int mhi_ready_state_transition(struct mhi_controller *mhi_cntrl) /* Wait for RESET to be cleared and READY bit to be set by the device */ ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, MHICTRL, - MHICTRL_RESET_MASK, 0, interval_us); + MHICTRL_RESET_MASK, 0, interval_us, + mhi_cntrl->timeout_ms); if (ret) { dev_err(dev, "Device failed to clear MHI Reset\n"); return ret; } + timeout_ms = mhi_cntrl->ready_timeout_ms ? + mhi_cntrl->ready_timeout_ms : mhi_cntrl->timeout_ms; ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, MHISTATUS, - MHISTATUS_READY_MASK, 1, interval_us); + MHISTATUS_READY_MASK, 1, interval_us, + timeout_ms); if (ret) { dev_err(dev, "Device failed to enter MHI Ready\n"); return ret; @@ -479,7 +484,7 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl) /* Wait for the reset bit to be cleared by the device */ ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, MHICTRL, - MHICTRL_RESET_MASK, 0, 25000); + MHICTRL_RESET_MASK, 0, 25000, mhi_cntrl->timeout_ms); if (ret) dev_err(dev, "Device failed to clear MHI Reset\n"); @@ -492,8 +497,8 @@ static void mhi_pm_disable_transition(struct mhi_controller *mhi_cntrl) if (!MHI_IN_PBL(mhi_get_exec_env(mhi_cntrl))) { /* wait for ready to be set */ ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, - MHISTATUS, - MHISTATUS_READY_MASK, 1, 25000); + MHISTATUS, MHISTATUS_READY_MASK, + 1, 25000, mhi_cntrl->timeout_ms); if (ret) dev_err(dev, "Device failed to enter READY state\n"); } @@ -1111,7 +1116,8 @@ int mhi_async_power_up(struct mhi_controller *mhi_cntrl) if (state == MHI_STATE_SYS_ERR) { mhi_set_mhi_state(mhi_cntrl, MHI_STATE_RESET); ret = mhi_poll_reg_field(mhi_cntrl, mhi_cntrl->regs, MHICTRL, - MHICTRL_RESET_MASK, 0, interval_us); + MHICTRL_RESET_MASK, 0, interval_us, + mhi_cntrl->timeout_ms); if (ret) { dev_info(dev, "Failed to reset MHI due to syserr state\n"); goto error_exit; @@ -1202,14 +1208,18 @@ EXPORT_SYMBOL_GPL(mhi_power_down); int mhi_sync_power_up(struct mhi_controller *mhi_cntrl) { int ret = mhi_async_power_up(mhi_cntrl); + u32 timeout_ms; if (ret) return ret; + /* Some devices need more time to set ready during power up */ + timeout_ms = mhi_cntrl->ready_timeout_ms ? + mhi_cntrl->ready_timeout_ms : mhi_cntrl->timeout_ms; wait_event_timeout(mhi_cntrl->state_event, MHI_IN_MISSION_MODE(mhi_cntrl->ee) || MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state), - msecs_to_jiffies(mhi_cntrl->timeout_ms)); + msecs_to_jiffies(timeout_ms)); ret = (MHI_IN_MISSION_MODE(mhi_cntrl->ee)) ? 0 : -ETIMEDOUT; if (ret) diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 039943e..d0f9b522 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -266,6 +266,7 @@ struct mhi_event_config { * struct mhi_controller_config - Root MHI controller configuration * @max_channels: Maximum number of channels supported * @timeout_ms: Timeout value for operations. 0 means use default + * @ready_timeout_ms: Timeout value for waiting device to be ready (optional) * @buf_len: Size of automatically allocated buffers. 0 means use default * @num_channels: Number of channels defined in @ch_cfg * @ch_cfg: Array of defined channels @@ -277,6 +278,7 @@ struct mhi_event_config { struct mhi_controller_config { u32 max_channels; u32 timeout_ms; + u32 ready_timeout_ms; u32 buf_len; u32 num_channels; const struct mhi_channel_config *ch_cfg; @@ -330,6 +332,7 @@ struct mhi_controller_config { * @pm_mutex: Mutex for suspend/resume operation * @pm_lock: Lock for protecting MHI power management state * @timeout_ms: Timeout in ms for state transitions + * @ready_timeout_ms: Timeout in ms for waiting device to be ready (optional) * @pm_state: MHI power management state * @db_access: DB access states * @ee: MHI device execution environment @@ -419,6 +422,7 @@ struct mhi_controller { struct mutex pm_mutex; rwlock_t pm_lock; u32 timeout_ms; + u32 ready_timeout_ms; u32 pm_state; u32 db_access; enum mhi_ee_type ee; From patchwork Mon Nov 6 12:46:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qiang Yu X-Patchwork-Id: 13446892 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 6E51BC4167B for ; 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Mon, 06 Nov 2023 12:46:32 +0000 Received: from pps.filterd (APTAIPPMTA01.qualcomm.com [127.0.0.1]) by APTAIPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3A6CkTna027841; Mon, 6 Nov 2023 12:46:29 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APTAIPPMTA01.qualcomm.com (PPS) with ESMTP id 3u5f1m2j4d-1; Mon, 06 Nov 2023 12:46:29 +0000 Received: from APTAIPPMTA01.qualcomm.com (APTAIPPMTA01.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3A6CkTSg027830; Mon, 6 Nov 2023 12:46:29 GMT Received: from cbsp-sh-gv.qualcomm.com (CBSP-SH-gv.ap.qualcomm.com [10.231.249.68]) by APTAIPPMTA01.qualcomm.com (PPS) with ESMTP id 3A6CkTnL027824; Mon, 06 Nov 2023 12:46:29 +0000 Received: by cbsp-sh-gv.qualcomm.com (Postfix, from userid 4098150) id 8F1A1543A; Mon, 6 Nov 2023 20:46:28 +0800 (CST) From: Qiang Yu To: mani@kernel.org, quic_jhugo@quicinc.com Cc: mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, quic_cang@quicinc.com, quic_mrana@quicinc.com, Qiang Yu Subject: [PATCH v2 2/2] bus: mhi: host: pci_generic: Add SDX75 based modem support Date: Mon, 6 Nov 2023 20:46:26 +0800 Message-Id: <1699274786-73881-3-git-send-email-qianyu@qti.qualcomm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1699274786-73881-1-git-send-email-qianyu@qti.qualcomm.com> References: <1699274786-73881-1-git-send-email-qianyu@qti.qualcomm.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: JF5FBQq8lCLtuJfy_8Jmic98BWcOKKO4 X-Proofpoint-GUID: JF5FBQq8lCLtuJfy_8Jmic98BWcOKKO4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-06_11,2023-11-02_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 phishscore=0 suspectscore=0 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 mlxscore=0 priorityscore=1501 clxscore=1015 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2310240000 definitions=main-2311060103 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Qiang Yu Add generic info for SDX75 based modems. SDX75 takes longer to set ready during power up. Hence use separate configuration. Signed-off-by: Qiang Yu Reviewed-by: Manivannan Sadhasivam --- drivers/bus/mhi/host/pci_generic.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 08f3f03..cd6cd14 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -269,6 +269,16 @@ static struct mhi_event_config modem_qcom_v1_mhi_events[] = { MHI_EVENT_CONFIG_HW_DATA(5, 2048, 101) }; +static const struct mhi_controller_config modem_qcom_v2_mhiv_config = { + .max_channels = 128, + .timeout_ms = 8000, + .ready_timeout_ms = 50000, + .num_channels = ARRAY_SIZE(modem_qcom_v1_mhi_channels), + .ch_cfg = modem_qcom_v1_mhi_channels, + .num_events = ARRAY_SIZE(modem_qcom_v1_mhi_events), + .event_cfg = modem_qcom_v1_mhi_events, +}; + static const struct mhi_controller_config modem_qcom_v1_mhiv_config = { .max_channels = 128, .timeout_ms = 8000, @@ -278,6 +288,16 @@ static const struct mhi_controller_config modem_qcom_v1_mhiv_config = { .event_cfg = modem_qcom_v1_mhi_events, }; +static const struct mhi_pci_dev_info mhi_qcom_sdx75_info = { + .name = "qcom-sdx75m", + .fw = "qcom/sdx75m/xbl.elf", + .edl = "qcom/sdx75m/edl.mbn", + .config = &modem_qcom_v2_mhiv_config, + .bar_num = MHI_PCI_DEFAULT_BAR_NUM, + .dma_data_width = 32, + .sideband_wake = false, +}; + static const struct mhi_pci_dev_info mhi_qcom_sdx65_info = { .name = "qcom-sdx65m", .fw = "qcom/sdx65m/xbl.elf", @@ -600,6 +620,8 @@ static const struct pci_device_id mhi_pci_id_table[] = { .driver_data = (kernel_ulong_t) &mhi_telit_fn990_info }, { PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0308), .driver_data = (kernel_ulong_t) &mhi_qcom_sdx65_info }, + { PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0309), + .driver_data = (kernel_ulong_t) &mhi_qcom_sdx75_info }, { PCI_DEVICE(PCI_VENDOR_ID_QUECTEL, 0x1001), /* EM120R-GL (sdx24) */ .driver_data = (kernel_ulong_t) &mhi_quectel_em1xx_info }, { PCI_DEVICE(PCI_VENDOR_ID_QUECTEL, 0x1002), /* EM160R-GL (sdx24) */