From c3917df54cf925754e74e48748493ac5f232a2f1 Mon Sep 17 00:00:00 2001 From: "Alexander A. Klimov" Date: Mon, 13 Jul 2020 17:11:37 +0200 Subject: mailbox: Replace HTTP links with HTTPS ones Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov Signed-off-by: Jassi Brar --- drivers/mailbox/omap-mailbox.c | 2 +- drivers/mailbox/ti-msgmgr.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c index 5978a35aac6d..93fe08aef3ca 100644 --- a/drivers/mailbox/omap-mailbox.c +++ b/drivers/mailbox/omap-mailbox.c @@ -3,7 +3,7 @@ * OMAP mailbox driver * * Copyright (C) 2006-2009 Nokia Corporation. All rights reserved. - * Copyright (C) 2013-2019 Texas Instruments Incorporated - http://www.ti.com + * Copyright (C) 2013-2019 Texas Instruments Incorporated - https://www.ti.com * * Contact: Hiroshi DOYU * Suman Anna diff --git a/drivers/mailbox/ti-msgmgr.c b/drivers/mailbox/ti-msgmgr.c index 88047d835211..0130628f4d9d 100644 --- a/drivers/mailbox/ti-msgmgr.c +++ b/drivers/mailbox/ti-msgmgr.c @@ -2,7 +2,7 @@ /* * Texas Instruments' Message Manager Driver * - * Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com/ * Nishanth Menon */ -- cgit v1.2.3 From 425ab036754af08bb0dc8273efad686484c98f3c Mon Sep 17 00:00:00 2001 From: Hanjun Guo Date: Wed, 22 Jul 2020 17:40:40 +0800 Subject: mailbox: pcc: Put the PCCT table for error path The acpi_get_table() should be coupled with acpi_put_table() if the mapped table is not used at runtime to release the table mapping. In acpi_pcc_probe(), the PCCT table entries will be used as private data for communication chan at runtime, but the table should be put for error path. Signed-off-by: Hanjun Guo Signed-off-by: Jassi Brar --- drivers/mailbox/pcc.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index 8c7fac38bb1c..ef9ecd1f5958 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -457,14 +457,17 @@ static int __init acpi_pcc_probe(void) pr_warn("Error parsing PCC subspaces from PCCT\n"); else pr_warn("Invalid PCCT: %d PCC subspaces\n", count); - return -EINVAL; + + rc = -EINVAL; + goto err_put_pcct; } pcc_mbox_channels = kcalloc(count, sizeof(struct mbox_chan), GFP_KERNEL); if (!pcc_mbox_channels) { pr_err("Could not allocate space for PCC mbox channels\n"); - return -ENOMEM; + rc = -ENOMEM; + goto err_put_pcct; } pcc_doorbell_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL); @@ -535,6 +538,8 @@ err_free_db_vaddr: kfree(pcc_doorbell_vaddr); err_free_mbox: kfree(pcc_mbox_channels); +err_put_pcct: + acpi_put_table(pcct_tbl); return rc; } -- cgit v1.2.3 From 03b70130abb4e37796d22617e9d0a2843e7621bd Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Mon, 22 Jun 2020 18:04:03 -0700 Subject: mailbox: imx: Mark PM functions as __maybe_unused When CONFIG_PM and CONFIG_PM_SLEEP are unset, the following warnings occur: drivers/mailbox/imx-mailbox.c:638:12: warning: 'imx_mu_runtime_resume' defined but not used [-Wunused-function] 638 | static int imx_mu_runtime_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~ drivers/mailbox/imx-mailbox.c:629:12: warning: 'imx_mu_runtime_suspend' defined but not used [-Wunused-function] 629 | static int imx_mu_runtime_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/mailbox/imx-mailbox.c:611:12: warning: 'imx_mu_resume_noirq' defined but not used [-Wunused-function] 611 | static int imx_mu_resume_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~ drivers/mailbox/imx-mailbox.c:601:12: warning: 'imx_mu_suspend_noirq' defined but not used [-Wunused-function] 601 | static int imx_mu_suspend_noirq(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~ Mark these functions as __maybe_unused, which is the standard procedure for PM functions. Fixes: bb2b2624dbe2 ("mailbox: imx: Add runtime PM callback to handle MU clocks") Signed-off-by: Nathan Chancellor Reviewed-by: Dong Aisheng Signed-off-by: Jassi Brar --- drivers/mailbox/imx-mailbox.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c index 7205b825c8b5..2543c7b6948b 100644 --- a/drivers/mailbox/imx-mailbox.c +++ b/drivers/mailbox/imx-mailbox.c @@ -598,7 +598,7 @@ static const struct of_device_id imx_mu_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, imx_mu_dt_ids); -static int imx_mu_suspend_noirq(struct device *dev) +static int __maybe_unused imx_mu_suspend_noirq(struct device *dev) { struct imx_mu_priv *priv = dev_get_drvdata(dev); @@ -608,7 +608,7 @@ static int imx_mu_suspend_noirq(struct device *dev) return 0; } -static int imx_mu_resume_noirq(struct device *dev) +static int __maybe_unused imx_mu_resume_noirq(struct device *dev) { struct imx_mu_priv *priv = dev_get_drvdata(dev); @@ -626,7 +626,7 @@ static int imx_mu_resume_noirq(struct device *dev) return 0; } -static int imx_mu_runtime_suspend(struct device *dev) +static int __maybe_unused imx_mu_runtime_suspend(struct device *dev) { struct imx_mu_priv *priv = dev_get_drvdata(dev); @@ -635,7 +635,7 @@ static int imx_mu_runtime_suspend(struct device *dev) return 0; } -static int imx_mu_runtime_resume(struct device *dev) +static int __maybe_unused imx_mu_runtime_resume(struct device *dev) { struct imx_mu_priv *priv = dev_get_drvdata(dev); int ret; -- cgit v1.2.3 From cfbf813e598125293493341bc2238acdf6ba6a6f Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Mon, 22 Jun 2020 21:25:57 +0200 Subject: mailbox: qcom: Add sdm660 hmss compatible The Qualcomm SDM660 platform has a APCS HMSS GLOBAL block, add the compatible for this. Signed-off-by: Konrad Dybcio Reviewed-by: Bjorn Andersson Acked-by: Rob Herring Signed-off-by: Jassi Brar --- Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml | 1 + drivers/mailbox/qcom-apcs-ipc-mailbox.c | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml index 12eff942708d..b4501c6b5c6f 100644 --- a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml +++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml @@ -22,6 +22,7 @@ properties: - qcom,msm8998-apcs-hmss-global - qcom,qcs404-apcs-apps-global - qcom,sc7180-apss-shared + - qcom,sdm660-apcs-hmss-global - qcom,sdm845-apss-shared - qcom,sm8150-apss-shared diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c index cec34f0af6ce..ab0275869434 100644 --- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c +++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c @@ -49,6 +49,10 @@ static const struct qcom_apcs_ipc_data msm8998_apcs_data = { .offset = 8, .clk_name = NULL }; +static const struct qcom_apcs_ipc_data sdm660_apcs_data = { + .offset = 8, .clk_name = NULL +}; + static const struct qcom_apcs_ipc_data apps_shared_apcs_data = { .offset = 12, .clk_name = NULL }; @@ -150,6 +154,7 @@ static const struct of_device_id qcom_apcs_ipc_of_match[] = { { .compatible = "qcom,msm8998-apcs-hmss-global", .data = &msm8998_apcs_data }, { .compatible = "qcom,qcs404-apcs-apps-global", .data = &msm8916_apcs_data }, { .compatible = "qcom,sc7180-apss-shared", .data = &apps_shared_apcs_data }, + { .compatible = "qcom,sdm660-apcs-hmss-global", .data = &sdm660_apcs_data }, { .compatible = "qcom,sdm845-apss-shared", .data = &apps_shared_apcs_data }, { .compatible = "qcom,sm8150-apss-shared", .data = &apps_shared_apcs_data }, {} -- cgit v1.2.3 From dde6805690cd8f156e93b0ed4cf1172a5ffbefdd Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Wed, 24 Jun 2020 17:01:03 +0200 Subject: mailbox: qcom: Add msm8994 apcs compatible MSM8994 has an APCS block similar to 8916, but with a different clock driver due to the former one having 2 clusters. Signed-off-by: Konrad Dybcio Acked-by: Rob Herring Reviewed-by: Bjorn Andersson Signed-off-by: Jassi Brar --- Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml | 1 + drivers/mailbox/qcom-apcs-ipc-mailbox.c | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml index b4501c6b5c6f..8f810fc5c183 100644 --- a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml +++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml @@ -18,6 +18,7 @@ properties: enum: - qcom,ipq8074-apcs-apps-global - qcom,msm8916-apcs-kpss-global + - qcom,msm8994-apcs-kpss-global - qcom,msm8996-apcs-hmss-global - qcom,msm8998-apcs-hmss-global - qcom,qcs404-apcs-apps-global diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c index ab0275869434..077e5c6a9ef7 100644 --- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c +++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c @@ -41,6 +41,10 @@ static const struct qcom_apcs_ipc_data msm8916_apcs_data = { .offset = 8, .clk_name = "qcom-apcs-msm8916-clk" }; +static const struct qcom_apcs_ipc_data msm8994_apcs_data = { + .offset = 8, .clk_name = NULL +}; + static const struct qcom_apcs_ipc_data msm8996_apcs_data = { .offset = 16, .clk_name = NULL }; @@ -150,6 +154,7 @@ static const struct of_device_id qcom_apcs_ipc_of_match[] = { { .compatible = "qcom,ipq6018-apcs-apps-global", .data = &ipq6018_apcs_data }, { .compatible = "qcom,ipq8074-apcs-apps-global", .data = &ipq8074_apcs_data }, { .compatible = "qcom,msm8916-apcs-kpss-global", .data = &msm8916_apcs_data }, + { .compatible = "qcom,msm8994-apcs-kpss-global", .data = &msm8994_apcs_data }, { .compatible = "qcom,msm8996-apcs-hmss-global", .data = &msm8996_apcs_data }, { .compatible = "qcom,msm8998-apcs-hmss-global", .data = &msm8998_apcs_data }, { .compatible = "qcom,qcs404-apcs-apps-global", .data = &msm8916_apcs_data }, -- cgit v1.2.3 From 0858fde496f84fff2fdae53d9e33c7b308195f74 Mon Sep 17 00:00:00 2001 From: Dennis YC Hsieh Date: Sun, 5 Jul 2020 14:37:14 +0800 Subject: mailbox: cmdq: variablize address shift in platform Some gce hardware shift pc and end address in register to support large dram addressing. Implement gce address shift when write or read pc and end register. And add shift bit in platform definition. Signed-off-by: Dennis YC Hsieh Signed-off-by: Jassi Brar --- drivers/mailbox/mtk-cmdq-mailbox.c | 57 ++++++++++++++++++++++++-------- include/linux/mailbox/mtk-cmdq-mailbox.h | 2 ++ 2 files changed, 46 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index b24822ad8409..49d9264145aa 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -75,8 +75,22 @@ struct cmdq { struct cmdq_thread *thread; struct clk *clock; bool suspended; + u8 shift_pa; }; +struct gce_plat { + u32 thread_nr; + u8 shift; +}; + +u8 cmdq_get_shift_pa(struct mbox_chan *chan) +{ + struct cmdq *cmdq = container_of(chan->mbox, struct cmdq, mbox); + + return cmdq->shift_pa; +} +EXPORT_SYMBOL(cmdq_get_shift_pa); + static int cmdq_thread_suspend(struct cmdq *cmdq, struct cmdq_thread *thread) { u32 status; @@ -183,13 +197,15 @@ static void cmdq_task_handle_error(struct cmdq_task *task) { struct cmdq_thread *thread = task->thread; struct cmdq_task *next_task; + struct cmdq *cmdq = task->cmdq; - dev_err(task->cmdq->mbox.dev, "task 0x%p error\n", task); - WARN_ON(cmdq_thread_suspend(task->cmdq, thread) < 0); + dev_err(cmdq->mbox.dev, "task 0x%p error\n", task); + WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); next_task = list_first_entry_or_null(&thread->task_busy_list, struct cmdq_task, list_entry); if (next_task) - writel(next_task->pa_base, thread->base + CMDQ_THR_CURR_ADDR); + writel(next_task->pa_base >> cmdq->shift_pa, + thread->base + CMDQ_THR_CURR_ADDR); cmdq_thread_resume(thread); } @@ -219,7 +235,7 @@ static void cmdq_thread_irq_handler(struct cmdq *cmdq, else return; - curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR); + curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << cmdq->shift_pa; list_for_each_entry_safe(task, tmp, &thread->task_busy_list, list_entry) { @@ -335,27 +351,31 @@ static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data) WARN_ON(clk_enable(cmdq->clock) < 0); WARN_ON(cmdq_thread_reset(cmdq, thread) < 0); - writel(task->pa_base, thread->base + CMDQ_THR_CURR_ADDR); - writel(task->pa_base + pkt->cmd_buf_size, + writel(task->pa_base >> cmdq->shift_pa, + thread->base + CMDQ_THR_CURR_ADDR); + writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, thread->base + CMDQ_THR_END_ADDR); + writel(thread->priority, thread->base + CMDQ_THR_PRIORITY); writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE); writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK); } else { WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); - curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR); - end_pa = readl(thread->base + CMDQ_THR_END_ADDR); + curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << + cmdq->shift_pa; + end_pa = readl(thread->base + CMDQ_THR_END_ADDR) << + cmdq->shift_pa; /* check boundary */ if (curr_pa == end_pa - CMDQ_INST_SIZE || curr_pa == end_pa) { /* set to this task directly */ - writel(task->pa_base, + writel(task->pa_base >> cmdq->shift_pa, thread->base + CMDQ_THR_CURR_ADDR); } else { cmdq_task_insert_into_thread(task); smp_mb(); /* modify jump before enable thread */ } - writel(task->pa_base + pkt->cmd_buf_size, + writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, thread->base + CMDQ_THR_END_ADDR); cmdq_thread_resume(thread); } @@ -453,6 +473,7 @@ static int cmdq_probe(struct platform_device *pdev) struct resource *res; struct cmdq *cmdq; int err, i; + struct gce_plat *plat_data; cmdq = devm_kzalloc(dev, sizeof(*cmdq), GFP_KERNEL); if (!cmdq) @@ -471,7 +492,14 @@ static int cmdq_probe(struct platform_device *pdev) return -EINVAL; } - cmdq->thread_nr = (u32)(unsigned long)of_device_get_match_data(dev); + plat_data = (struct gce_plat *)of_device_get_match_data(dev); + if (!plat_data) { + dev_err(dev, "failed to get match data\n"); + return -EINVAL; + } + + cmdq->thread_nr = plat_data->thread_nr; + cmdq->shift_pa = plat_data->shift; cmdq->irq_mask = GENMASK(cmdq->thread_nr - 1, 0); err = devm_request_irq(dev, cmdq->irq, cmdq_irq_handler, IRQF_SHARED, "mtk_cmdq", cmdq); @@ -534,9 +562,12 @@ static const struct dev_pm_ops cmdq_pm_ops = { .resume = cmdq_resume, }; +static const struct gce_plat gce_plat_v2 = {.thread_nr = 16}; +static const struct gce_plat gce_plat_v3 = {.thread_nr = 24}; + static const struct of_device_id cmdq_of_ids[] = { - {.compatible = "mediatek,mt8173-gce", .data = (void *)16}, - {.compatible = "mediatek,mt8183-gce", .data = (void *)24}, + {.compatible = "mediatek,mt8173-gce", .data = (void *)&gce_plat_v2}, + {.compatible = "mediatek,mt8183-gce", .data = (void *)&gce_plat_v3}, {} }; diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index a4dc45fbec0a..c342b8799be8 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -88,4 +88,6 @@ struct cmdq_pkt { void *cl; }; +u8 cmdq_get_shift_pa(struct mbox_chan *chan); + #endif /* __MTK_CMDQ_MAILBOX_H__ */ -- cgit v1.2.3 From bb2b06e08157c1f542506ce3ed59cc3309eacb78 Mon Sep 17 00:00:00 2001 From: Dennis YC Hsieh Date: Sun, 5 Jul 2020 14:37:15 +0800 Subject: mailbox: cmdq: support mt6779 gce platform definition Add gce v4 hardware support with different thread number and shift. Signed-off-by: Dennis YC Hsieh Reviewed-by: CK Hu Reviewed-by: Matthias Brugger Reviewed-by: Bibby Hsieh Signed-off-by: Jassi Brar --- drivers/mailbox/mtk-cmdq-mailbox.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 49d9264145aa..08bd4f1eb469 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -564,10 +564,12 @@ static const struct dev_pm_ops cmdq_pm_ops = { static const struct gce_plat gce_plat_v2 = {.thread_nr = 16}; static const struct gce_plat gce_plat_v3 = {.thread_nr = 24}; +static const struct gce_plat gce_plat_v4 = {.thread_nr = 24, .shift = 3}; static const struct of_device_id cmdq_of_ids[] = { {.compatible = "mediatek,mt8173-gce", .data = (void *)&gce_plat_v2}, {.compatible = "mediatek,mt8183-gce", .data = (void *)&gce_plat_v3}, + {.compatible = "mediatek,mt6779-gce", .data = (void *)&gce_plat_v4}, {} }; -- cgit v1.2.3 From 884996986347dbe3b735cfa9bc041dd98a533796 Mon Sep 17 00:00:00 2001 From: Dennis YC Hsieh Date: Sun, 5 Jul 2020 14:37:16 +0800 Subject: mailbox: mediatek: cmdq: clear task in channel before shutdown Do success callback in channel when shutdown. For those task not finish, callback with error code thus client has chance to cleanup or reset. Signed-off-by: Dennis YC Hsieh Reviewed-by: CK Hu Reviewed-by: Bibby Hsieh Signed-off-by: Jassi Brar --- drivers/mailbox/mtk-cmdq-mailbox.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'drivers') diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index 08bd4f1eb469..484d4438cd83 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -349,6 +349,12 @@ static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data) if (list_empty(&thread->task_busy_list)) { WARN_ON(clk_enable(cmdq->clock) < 0); + /* + * The thread reset will clear thread related register to 0, + * including pc, end, priority, irq, suspend and enable. Thus + * set CMDQ_THR_ENABLED to CMDQ_THR_ENABLE_TASK will enable + * thread and make it running. + */ WARN_ON(cmdq_thread_reset(cmdq, thread) < 0); writel(task->pa_base >> cmdq->shift_pa, @@ -391,6 +397,38 @@ static int cmdq_mbox_startup(struct mbox_chan *chan) static void cmdq_mbox_shutdown(struct mbox_chan *chan) { + struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; + struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev); + struct cmdq_task *task, *tmp; + unsigned long flags; + + spin_lock_irqsave(&thread->chan->lock, flags); + if (list_empty(&thread->task_busy_list)) + goto done; + + WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); + + /* make sure executed tasks have success callback */ + cmdq_thread_irq_handler(cmdq, thread); + if (list_empty(&thread->task_busy_list)) + goto done; + + list_for_each_entry_safe(task, tmp, &thread->task_busy_list, + list_entry) { + cmdq_task_exec_done(task, CMDQ_CB_ERROR); + kfree(task); + } + + cmdq_thread_disable(cmdq, thread); + clk_disable(cmdq->clock); +done: + /* + * The thread->task_busy_list empty means thread already disable. The + * cmdq_mbox_send_data() always reset thread which clear disable and + * suspend statue when first pkt send to channel, so there is no need + * to do any operation here, only unlock and leave. + */ + spin_unlock_irqrestore(&thread->chan->lock, flags); } static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout) -- cgit v1.2.3