diff options
Diffstat (limited to 'arm64-qcom-DWC3-USB-Add-support-for-ACPI-based-AArch64-Laptops.patch')
-rw-r--r-- | arm64-qcom-DWC3-USB-Add-support-for-ACPI-based-AArch64-Laptops.patch | 1002 |
1 files changed, 0 insertions, 1002 deletions
diff --git a/arm64-qcom-DWC3-USB-Add-support-for-ACPI-based-AArch64-Laptops.patch b/arm64-qcom-DWC3-USB-Add-support-for-ACPI-based-AArch64-Laptops.patch deleted file mode 100644 index ece8d7af4..000000000 --- a/arm64-qcom-DWC3-USB-Add-support-for-ACPI-based-AArch64-Laptops.patch +++ /dev/null @@ -1,1002 +0,0 @@ -From patchwork Mon Jun 17 12:51:02 2019 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Lee Jones <lee.jones@linaro.org> -X-Patchwork-Id: 10999157 -Return-Path: - <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> -Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org - [172.30.200.125]) - by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B7F1314BB - for <patchwork-linux-arm@patchwork.kernel.org>; - Mon, 17 Jun 2019 12:51:26 +0000 (UTC) -Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) - by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A8630286B3 - for <patchwork-linux-arm@patchwork.kernel.org>; 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- Mon, 17 Jun 2019 05:51:09 -0700 (PDT) -Received: from dell.watershed.co.uk ([2.27.35.243]) - by smtp.gmail.com with ESMTPSA id o11sm10477852wmh.37.2019.06.17.05.51.08 - (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); - Mon, 17 Jun 2019 05:51:09 -0700 (PDT) -From: Lee Jones <lee.jones@linaro.org> -To: alokc@codeaurora.org, agross@kernel.org, david.brown@linaro.org, - bjorn.andersson@linaro.org, balbi@kernel.org, gregkh@linuxfoundation.org, - ard.biesheuvel@linaro.org, jlhugo@gmail.com, linux-arm-msm@vger.kernel.org, - linux-usb@vger.kernel.org, felipe.balbi@linux.intel.com -Subject: [RESEND v4 1/4] soc: qcom: geni: Add support for ACPI -Date: Mon, 17 Jun 2019 13:51:02 +0100 -Message-Id: <20190617125105.6186-2-lee.jones@linaro.org> -X-Mailer: git-send-email 2.17.1 -In-Reply-To: <20190617125105.6186-1-lee.jones@linaro.org> -References: <20190617125105.6186-1-lee.jones@linaro.org> -X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 -X-CRM114-CacheID: sfid-20190617_055111_214407_390679F0 -X-CRM114-Status: GOOD ( 13.52 ) -X-BeenThere: linux-arm-kernel@lists.infradead.org -X-Mailman-Version: 2.1.29 -Precedence: list -List-Id: <linux-arm-kernel.lists.infradead.org> -List-Unsubscribe: - <http://lists.infradead.org/mailman/options/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> -List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> -List-Post: <mailto:linux-arm-kernel@lists.infradead.org> -List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> -List-Subscribe: - <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> -Cc: Lee Jones <lee.jones@linaro.org>, linux-kernel@vger.kernel.org, - linux-arm-kernel@lists.infradead.org -MIME-Version: 1.0 -Content-Type: text/plain; charset="us-ascii" -Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> -Errors-To: - linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org -X-Virus-Scanned: ClamAV using ClamSMTP - -When booting with ACPI as the active set of configuration tables, -all; clocks, regulators, pin functions ect are expected to be at -their ideal values/levels/rates, thus the associated frameworks -are unavailable. Ensure calls to these APIs are shielded when -ACPI is enabled. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> ---- - drivers/soc/qcom/qcom-geni-se.c | 21 +++++++++++++++------ - 1 file changed, 15 insertions(+), 6 deletions(-) - -diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c -index 6b8ef01472e9..d5cf953b4337 100644 ---- a/drivers/soc/qcom/qcom-geni-se.c -+++ b/drivers/soc/qcom/qcom-geni-se.c -@@ -1,6 +1,7 @@ - // SPDX-License-Identifier: GPL-2.0 - // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. - -+#include <linux/acpi.h> - #include <linux/clk.h> - #include <linux/slab.h> - #include <linux/dma-mapping.h> -@@ -450,6 +451,9 @@ int geni_se_resources_off(struct geni_se *se) - { - int ret; - -+ if (has_acpi_companion(se->dev)) -+ return 0; -+ - ret = pinctrl_pm_select_sleep_state(se->dev); - if (ret) - return ret; -@@ -487,6 +491,9 @@ int geni_se_resources_on(struct geni_se *se) - { - int ret; - -+ if (has_acpi_companion(se->dev)) -+ return 0; -+ - ret = geni_se_clks_on(se); - if (ret) - return ret; -@@ -724,12 +731,14 @@ static int geni_se_probe(struct platform_device *pdev) - if (IS_ERR(wrapper->base)) - return PTR_ERR(wrapper->base); - -- wrapper->ahb_clks[0].id = "m-ahb"; -- wrapper->ahb_clks[1].id = "s-ahb"; -- ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks); -- if (ret) { -- dev_err(dev, "Err getting AHB clks %d\n", ret); -- return ret; -+ if (!has_acpi_companion(&pdev->dev)) { -+ wrapper->ahb_clks[0].id = "m-ahb"; -+ wrapper->ahb_clks[1].id = "s-ahb"; -+ ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks); -+ if (ret) { -+ dev_err(dev, "Err getting AHB clks %d\n", ret); -+ return ret; -+ } - } - - dev_set_drvdata(dev, wrapper); - -From patchwork Mon Jun 17 12:51:03 2019 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Lee Jones <lee.jones@linaro.org> -X-Patchwork-Id: 10999167 -Return-Path: - <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> -Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org - [172.30.200.125]) - by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E1A4214BB - for <patchwork-linux-arm@patchwork.kernel.org>; - Mon, 17 Jun 2019 12:51:48 +0000 (UTC) -Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) - by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D06A5286E6 - for <patchwork-linux-arm@patchwork.kernel.org>; - Mon, 17 Jun 2019 12:51:48 +0000 (UTC) -Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) - id C4C772871F; 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- Mon, 17 Jun 2019 05:51:10 -0700 (PDT) -Received: from dell.watershed.co.uk ([2.27.35.243]) - by smtp.gmail.com with ESMTPSA id o11sm10477852wmh.37.2019.06.17.05.51.09 - (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); - Mon, 17 Jun 2019 05:51:10 -0700 (PDT) -From: Lee Jones <lee.jones@linaro.org> -To: alokc@codeaurora.org, agross@kernel.org, david.brown@linaro.org, - bjorn.andersson@linaro.org, balbi@kernel.org, gregkh@linuxfoundation.org, - ard.biesheuvel@linaro.org, jlhugo@gmail.com, linux-arm-msm@vger.kernel.org, - linux-usb@vger.kernel.org, felipe.balbi@linux.intel.com -Subject: [RESEND v4 2/4] usb: dwc3: qcom: Add support for booting with ACPI -Date: Mon, 17 Jun 2019 13:51:03 +0100 -Message-Id: <20190617125105.6186-3-lee.jones@linaro.org> -X-Mailer: git-send-email 2.17.1 -In-Reply-To: <20190617125105.6186-1-lee.jones@linaro.org> -References: <20190617125105.6186-1-lee.jones@linaro.org> -X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 -X-CRM114-CacheID: sfid-20190617_055112_164384_7E92DD4C -X-CRM114-Status: GOOD ( 21.26 ) -X-BeenThere: linux-arm-kernel@lists.infradead.org -X-Mailman-Version: 2.1.29 -Precedence: list -List-Id: <linux-arm-kernel.lists.infradead.org> -List-Unsubscribe: - <http://lists.infradead.org/mailman/options/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> -List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> -List-Post: <mailto:linux-arm-kernel@lists.infradead.org> -List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> -List-Subscribe: - <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> -Cc: Lee Jones <lee.jones@linaro.org>, linux-kernel@vger.kernel.org, - linux-arm-kernel@lists.infradead.org -MIME-Version: 1.0 -Content-Type: text/plain; charset="us-ascii" -Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> -Errors-To: - linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org -X-Virus-Scanned: ClamAV using ClamSMTP - -In Linux, the DWC3 core exists as its own independent platform device. -Thus when describing relationships in Device Tree, the current default -boot configuration table option, the DWC3 core often resides as a child -of the platform specific node. Both of which are given their own -address space descriptions and the drivers can be mostly agnostic to -each other. - -However, other Operating Systems have taken a more monolithic approach, -which is evident in the configuration ACPI tables for the Qualcomm -Snapdragon SDM850, where all DWC3 (core and platform) components are -described under a single IO memory region. - -To ensure successful booting using the supplied ACPI tables, we need to -devise a way to chop up the address regions provided and subsequently -register the DWC3 core with the resultant information, which is -precisely what this patch aims to achieve. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> ---- - drivers/usb/dwc3/Kconfig | 2 +- - drivers/usb/dwc3/dwc3-qcom.c | 206 ++++++++++++++++++++++++++++++----- - 2 files changed, 179 insertions(+), 29 deletions(-) - -diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig -index 4a62045cc812..89abc6078703 100644 ---- a/drivers/usb/dwc3/Kconfig -+++ b/drivers/usb/dwc3/Kconfig -@@ -128,7 +128,7 @@ config USB_DWC3_QCOM - tristate "Qualcomm Platform" - depends on ARCH_QCOM || COMPILE_TEST - depends on EXTCON || !EXTCON -- depends on OF -+ depends on (OF || ACPI) - default USB_DWC3 - help - Some Qualcomm SoCs use DesignWare Core IP for USB2/3 -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 184df4daa590..0cb63f6c92d9 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -4,6 +4,7 @@ - * Inspired by dwc3-of-simple.c - */ - -+#include <linux/acpi.h> - #include <linux/io.h> - #include <linux/of.h> - #include <linux/clk.h> -@@ -38,6 +39,20 @@ - #define PWR_EVNT_LPM_IN_L2_MASK BIT(4) - #define PWR_EVNT_LPM_OUT_L2_MASK BIT(5) - -+#define SDM845_QSCRATCH_BASE_OFFSET 0xf8800 -+#define SDM845_QSCRATCH_SIZE 0x400 -+#define SDM845_DWC3_CORE_SIZE 0xcd00 -+ -+struct dwc3_acpi_pdata { -+ u32 qscratch_base_offset; -+ u32 qscratch_base_size; -+ u32 dwc3_core_base_size; -+ int hs_phy_irq_index; -+ int dp_hs_phy_irq_index; -+ int dm_hs_phy_irq_index; -+ int ss_phy_irq_index; -+}; -+ - struct dwc3_qcom { - struct device *dev; - void __iomem *qscratch_base; -@@ -56,6 +71,8 @@ struct dwc3_qcom { - struct notifier_block vbus_nb; - struct notifier_block host_nb; - -+ const struct dwc3_acpi_pdata *acpi_pdata; -+ - enum usb_dr_mode mode; - bool is_suspended; - bool pm_suspended; -@@ -300,12 +317,27 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) - PIPE_UTMI_CLK_DIS); - } - -+static int dwc3_qcom_get_irq(struct platform_device *pdev, -+ const char *name, int num) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ int ret; -+ -+ if (np) -+ ret = platform_get_irq_byname(pdev, name); -+ else -+ ret = platform_get_irq(pdev, num); -+ -+ return ret; -+} -+ - static int dwc3_qcom_setup_irq(struct platform_device *pdev) - { - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -+ const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata; - int irq, ret; -- -- irq = platform_get_irq_byname(pdev, "hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "hs_phy_irq", -+ pdata ? pdata->hs_phy_irq_index : -1); - if (irq > 0) { - /* Keep wakeup interrupts disabled until suspend */ - irq_set_status_flags(irq, IRQ_NOAUTOEN); -@@ -320,7 +352,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "dp_hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "dp_hs_phy_irq", -+ pdata ? pdata->dp_hs_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -334,7 +367,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->dp_hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "dm_hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq", -+ pdata ? pdata->dm_hs_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -348,7 +382,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->dm_hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "ss_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq", -+ pdata ? pdata->ss_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -371,11 +406,11 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - struct device_node *np = dev->of_node; - int i; - -- qcom->num_clocks = count; -- -- if (!count) -+ if (!np || !count) - return 0; - -+ qcom->num_clocks = count; -+ - qcom->clks = devm_kcalloc(dev, qcom->num_clocks, - sizeof(struct clk *), GFP_KERNEL); - if (!qcom->clks) -@@ -409,12 +444,103 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - return 0; - } - --static int dwc3_qcom_probe(struct platform_device *pdev) -+static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - { -+ struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -+ struct device *dev = &pdev->dev; -+ struct resource *res, *child_res = NULL; -+ int irq; -+ int ret; -+ -+ qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); -+ if (!qcom->dwc3) -+ return -ENOMEM; -+ -+ qcom->dwc3->dev.parent = dev; -+ qcom->dwc3->dev.type = dev->type; -+ qcom->dwc3->dev.dma_mask = dev->dma_mask; -+ qcom->dwc3->dev.dma_parms = dev->dma_parms; -+ qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask; -+ -+ child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL); -+ if (!child_res) -+ return -ENOMEM; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!res) { -+ dev_err(&pdev->dev, "failed to get memory resource\n"); -+ ret = -ENODEV; -+ goto out; -+ } -+ -+ child_res[0].flags = res->flags; -+ child_res[0].start = res->start; -+ child_res[0].end = child_res[0].start + -+ qcom->acpi_pdata->dwc3_core_base_size; -+ -+ irq = platform_get_irq(pdev, 0); -+ child_res[1].flags = IORESOURCE_IRQ; -+ child_res[1].start = child_res[1].end = irq; -+ -+ ret = platform_device_add_resources(qcom->dwc3, child_res, 2); -+ if (ret) { -+ dev_err(&pdev->dev, "failed to add resources\n"); -+ goto out; -+ } -+ -+ ret = platform_device_add(qcom->dwc3); -+ if (ret) -+ dev_err(&pdev->dev, "failed to add device\n"); -+ -+out: -+ kfree(child_res); -+ return ret; -+} -+ -+static int dwc3_qcom_of_register_core(struct platform_device *pdev) -+{ -+ struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node, *dwc3_np; - struct device *dev = &pdev->dev; -+ int ret; -+ -+ dwc3_np = of_get_child_by_name(np, "dwc3"); -+ if (!dwc3_np) { -+ dev_err(dev, "failed to find dwc3 core child\n"); -+ return -ENODEV; -+ } -+ -+ ret = of_platform_populate(np, NULL, NULL, dev); -+ if (ret) { -+ dev_err(dev, "failed to register dwc3 core - %d\n", ret); -+ return ret; -+ } -+ -+ qcom->dwc3 = of_find_device_by_node(dwc3_np); -+ if (!qcom->dwc3) { -+ dev_err(dev, "failed to get dwc3 platform device\n"); -+ return -ENODEV; -+ } -+ -+ return 0; -+} -+ -+static const struct dwc3_acpi_pdata sdm845_acpi_pdata = { -+ .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET, -+ .qscratch_base_size = SDM845_QSCRATCH_SIZE, -+ .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE, -+ .hs_phy_irq_index = 1, -+ .dp_hs_phy_irq_index = 4, -+ .dm_hs_phy_irq_index = 3, -+ .ss_phy_irq_index = 2 -+}; -+ -+static int dwc3_qcom_probe(struct platform_device *pdev) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ struct device *dev = &pdev->dev; - struct dwc3_qcom *qcom; -- struct resource *res; -+ struct resource *res, *parent_res = NULL; - int ret, i; - bool ignore_pipe_clk; - -@@ -425,6 +551,14 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - platform_set_drvdata(pdev, qcom); - qcom->dev = &pdev->dev; - -+ if (has_acpi_companion(dev)) { -+ qcom->acpi_pdata = acpi_device_get_match_data(dev); -+ if (!qcom->acpi_pdata) { -+ dev_err(&pdev->dev, "no supporting ACPI device data\n"); -+ return -EINVAL; -+ } -+ } -+ - qcom->resets = devm_reset_control_array_get_optional_exclusive(dev); - if (IS_ERR(qcom->resets)) { - ret = PTR_ERR(qcom->resets); -@@ -454,7 +588,21 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- qcom->qscratch_base = devm_ioremap_resource(dev, res); -+ -+ if (np) { -+ parent_res = res; -+ } else { -+ parent_res = kmemdup(res, sizeof(struct resource), GFP_KERNEL); -+ if (!parent_res) -+ return -ENOMEM; -+ -+ parent_res->start = res->start + -+ qcom->acpi_pdata->qscratch_base_offset; -+ parent_res->end = parent_res->start + -+ qcom->acpi_pdata->qscratch_base_size; -+ } -+ -+ qcom->qscratch_base = devm_ioremap_resource(dev, parent_res); - if (IS_ERR(qcom->qscratch_base)) { - dev_err(dev, "failed to map qscratch, err=%d\n", ret); - ret = PTR_ERR(qcom->qscratch_base); -@@ -462,13 +610,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - } - - ret = dwc3_qcom_setup_irq(pdev); -- if (ret) -- goto clk_disable; -- -- dwc3_np = of_get_child_by_name(np, "dwc3"); -- if (!dwc3_np) { -- dev_err(dev, "failed to find dwc3 core child\n"); -- ret = -ENODEV; -+ if (ret) { -+ dev_err(dev, "failed to setup IRQs, err=%d\n", ret); - goto clk_disable; - } - -@@ -481,16 +624,13 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - if (ignore_pipe_clk) - dwc3_qcom_select_utmi_clk(qcom); - -- ret = of_platform_populate(np, NULL, NULL, dev); -- if (ret) { -- dev_err(dev, "failed to register dwc3 core - %d\n", ret); -- goto clk_disable; -- } -+ if (np) -+ ret = dwc3_qcom_of_register_core(pdev); -+ else -+ ret = dwc3_qcom_acpi_register_core(pdev); - -- qcom->dwc3 = of_find_device_by_node(dwc3_np); -- if (!qcom->dwc3) { -- dev_err(&pdev->dev, "failed to get dwc3 platform device\n"); -- ret = -ENODEV; -+ if (ret) { -+ dev_err(dev, "failed to register DWC3 Core, err=%d\n", ret); - goto depopulate; - } - -@@ -514,7 +654,10 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - return 0; - - depopulate: -- of_platform_depopulate(&pdev->dev); -+ if (np) -+ of_platform_depopulate(&pdev->dev); -+ else -+ platform_device_put(pdev); - clk_disable: - for (i = qcom->num_clocks - 1; i >= 0; i--) { - clk_disable_unprepare(qcom->clks[i]); -@@ -601,6 +744,12 @@ static const struct of_device_id dwc3_qcom_of_match[] = { - }; - MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); - -+static const struct acpi_device_id dwc3_qcom_acpi_match[] = { -+ { "QCOM2430", (unsigned long)&sdm845_acpi_pdata }, -+ { }, -+}; -+MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match); -+ - static struct platform_driver dwc3_qcom_driver = { - .probe = dwc3_qcom_probe, - .remove = dwc3_qcom_remove, -@@ -608,6 +757,7 @@ static struct platform_driver dwc3_qcom_driver = { - .name = "dwc3-qcom", - .pm = &dwc3_qcom_dev_pm_ops, - .of_match_table = dwc3_qcom_of_match, -+ .acpi_match_table = ACPI_PTR(dwc3_qcom_acpi_match), - }, - }; - - -From patchwork Mon Jun 17 12:51:04 2019 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Lee Jones <lee.jones@linaro.org> -X-Patchwork-Id: 10999169 -Return-Path: - <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> -Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org - [172.30.200.125]) - by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 59E436C5 - for <patchwork-linux-arm@patchwork.kernel.org>; - Mon, 17 Jun 2019 12:52:08 +0000 (UTC) -Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) - by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 49F6328720 - for <patchwork-linux-arm@patchwork.kernel.org>; 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- Mon, 17 Jun 2019 05:51:11 -0700 (PDT) -Received: from dell.watershed.co.uk ([2.27.35.243]) - by smtp.gmail.com with ESMTPSA id o11sm10477852wmh.37.2019.06.17.05.51.10 - (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); - Mon, 17 Jun 2019 05:51:11 -0700 (PDT) -From: Lee Jones <lee.jones@linaro.org> -To: alokc@codeaurora.org, agross@kernel.org, david.brown@linaro.org, - bjorn.andersson@linaro.org, balbi@kernel.org, gregkh@linuxfoundation.org, - ard.biesheuvel@linaro.org, jlhugo@gmail.com, linux-arm-msm@vger.kernel.org, - linux-usb@vger.kernel.org, felipe.balbi@linux.intel.com -Subject: [RESEND v4 3/4] usb: dwc3: qcom: Start USB in 'host mode' on the - SDM845 -Date: Mon, 17 Jun 2019 13:51:04 +0100 -Message-Id: <20190617125105.6186-4-lee.jones@linaro.org> -X-Mailer: git-send-email 2.17.1 -In-Reply-To: <20190617125105.6186-1-lee.jones@linaro.org> -References: <20190617125105.6186-1-lee.jones@linaro.org> -X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 -X-CRM114-CacheID: sfid-20190617_055112_973743_71B28B61 -X-CRM114-Status: GOOD ( 15.72 ) -X-BeenThere: linux-arm-kernel@lists.infradead.org -X-Mailman-Version: 2.1.29 -Precedence: list -List-Id: <linux-arm-kernel.lists.infradead.org> -List-Unsubscribe: - <http://lists.infradead.org/mailman/options/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> -List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> -List-Post: <mailto:linux-arm-kernel@lists.infradead.org> -List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> -List-Subscribe: - <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> -Cc: Lee Jones <lee.jones@linaro.org>, linux-kernel@vger.kernel.org, - linux-arm-kernel@lists.infradead.org -MIME-Version: 1.0 -Content-Type: text/plain; charset="us-ascii" -Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> -Errors-To: - linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org -X-Virus-Scanned: ClamAV using ClamSMTP - -When booting with Device Tree, the current default boot configuration -table option, the request to boot via 'host mode' comes from the -'dr_mode' property. A property of the same name can be used inside -ACPI tables too. However it is missing from the SDM845's ACPI tables -so we have to supply this information using Platform Device Properties -instead. - -This does not change the behaviour of any currently supported devices. -The property is only set on ACPI enabled platforms, thus for H/W -booting DT, unless a 'dr_mode' property is present, the default is -still OTG (On-The-Go) as per [0]. Any new ACPI devices added will -also be able to over-ride this implementation by providing a 'dr_mode' -property in their ACPI tables. In cases where 'dr_mode' is omitted -from the tables AND 'host mode' should not be the default (very -unlikely), then we will have to add some way of choosing between them -at run time - most likely by ACPI HID. - -[0] Documentation/devicetree/bindings/usb/generic.txt - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> ---- - drivers/usb/dwc3/dwc3-qcom.c | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 0cb63f6c92d9..2d050303d564 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -444,6 +444,11 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - return 0; - } - -+static const struct property_entry dwc3_qcom_acpi_properties[] = { -+ PROPERTY_ENTRY_STRING("dr_mode", "host"), -+ {} -+}; -+ - static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - { - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -@@ -488,6 +493,13 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - goto out; - } - -+ ret = platform_device_add_properties(qcom->dwc3, -+ dwc3_qcom_acpi_properties); -+ if (ret < 0) { -+ dev_err(&pdev->dev, "failed to add properties\n"); -+ goto out; -+ } -+ - ret = platform_device_add(qcom->dwc3); - if (ret) - dev_err(&pdev->dev, "failed to add device\n"); - -From patchwork Mon Jun 17 12:51:05 2019 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Lee Jones <lee.jones@linaro.org> -X-Patchwork-Id: 10999171 -Return-Path: - <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> -Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org - [172.30.200.125]) - by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 056B014BB - for <patchwork-linux-arm@patchwork.kernel.org>; - Mon, 17 Jun 2019 12:52:24 +0000 (UTC) -Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) - by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9F5D2623D - for <patchwork-linux-arm@patchwork.kernel.org>; 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- Mon, 17 Jun 2019 05:51:12 -0700 (PDT) -Received: from dell.watershed.co.uk ([2.27.35.243]) - by smtp.gmail.com with ESMTPSA id o11sm10477852wmh.37.2019.06.17.05.51.11 - (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); - Mon, 17 Jun 2019 05:51:12 -0700 (PDT) -From: Lee Jones <lee.jones@linaro.org> -To: alokc@codeaurora.org, agross@kernel.org, david.brown@linaro.org, - bjorn.andersson@linaro.org, balbi@kernel.org, gregkh@linuxfoundation.org, - ard.biesheuvel@linaro.org, jlhugo@gmail.com, linux-arm-msm@vger.kernel.org, - linux-usb@vger.kernel.org, felipe.balbi@linux.intel.com -Subject: [RESEND v4 4/4] usb: dwc3: qcom: Improve error handling -Date: Mon, 17 Jun 2019 13:51:05 +0100 -Message-Id: <20190617125105.6186-5-lee.jones@linaro.org> -X-Mailer: git-send-email 2.17.1 -In-Reply-To: <20190617125105.6186-1-lee.jones@linaro.org> -References: <20190617125105.6186-1-lee.jones@linaro.org> -X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 -X-CRM114-CacheID: sfid-20190617_055114_400272_E30946CF -X-CRM114-Status: GOOD ( 11.45 ) -X-BeenThere: linux-arm-kernel@lists.infradead.org -X-Mailman-Version: 2.1.29 -Precedence: list -List-Id: <linux-arm-kernel.lists.infradead.org> -List-Unsubscribe: - <http://lists.infradead.org/mailman/options/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> -List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> -List-Post: <mailto:linux-arm-kernel@lists.infradead.org> -List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> -List-Subscribe: - <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, - <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> -Cc: Lee Jones <lee.jones@linaro.org>, linux-kernel@vger.kernel.org, - linux-arm-kernel@lists.infradead.org -MIME-Version: 1.0 -Content-Type: text/plain; charset="us-ascii" -Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> -Errors-To: - linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org -X-Virus-Scanned: ClamAV using ClamSMTP - -dwc3_qcom_clk_init() is called with of_count_phandle_with_args() as an -argument. If of_count_phandle_with_args() returns an error, the number -of clocks will be a negative value and will lead to undefined behaviour. - -Ensure we check for an error before attempting to blindly use the value. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> ---- - drivers/usb/dwc3/dwc3-qcom.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 2d050303d564..c59e9d8e8609 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -409,6 +409,9 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - if (!np || !count) - return 0; - -+ if (count < 0) -+ return count; -+ - qcom->num_clocks = count; - - qcom->clks = devm_kcalloc(dev, qcom->num_clocks, |