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Mon, 2 Oct 2023 18:58:52 +0300 (IDT) From: Tomer Maimon To: , , , , , , , , , , , , CC: , , , , Tomer Maimon Subject: [PATCH v3 3/3] usb: chipidea: Add support for NPCM Date: Mon, 2 Oct 2023 18:58:48 +0300 Message-ID: <20231002155848.62198-4-tmaimon77@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231002155848.62198-1-tmaimon77@gmail.com> References: <20231002155848.62198-1-tmaimon77@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NotSetDelaration: True X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66CF:EE_|TYSPR03MB8027:EE_ X-MS-Office365-Filtering-Correlation-Id: b90eaa14-acb8-4318-7796-08dbc3607a89 X-MS-Exchange-SenderADCheck: 0 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:211.75.126.7;CTRY:TW;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:NTHCCAS01.nuvoton.com;PTR:211-75-126-7.hinet-ip.hinet.net;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(396003)(346002)(376002)(136003)(230922051799003)(186009)(64100799003)(451199024)(5400799018)(48200799006)(82310400011)(61400799006)(36840700001)(46966006)(40470700004)(83380400001)(40460700003)(40480700001)(478600001)(6666004)(34020700004)(36860700001)(55446002)(336012)(921005)(356005)(82740400003)(81166007)(83170400001)(7416002)(2616005)(47076005)(6266002)(1076003)(26005)(73392003)(316002)(82202003)(42882007)(36756003)(2906002)(8676002)(41300700001)(4326008)(8936002)(54906003)(42186006)(110136005)(5660300002)(76482006)(70586007)(70206006)(45356006)(35450700002)(84790400001)(12100799045);DIR:OUT;SFP:1501; X-OriginatorOrg: nuvoton.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Oct 2023 15:58:54.2069 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b90eaa14-acb8-4318-7796-08dbc3607a89 X-MS-Exchange-CrossTenant-Id: a3f24931-d403-4b4a-94f1-7d83ac638e07 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=a3f24931-d403-4b4a-94f1-7d83ac638e07;Ip=[211.75.126.7];Helo=[NTHCCAS01.nuvoton.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66CF.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYSPR03MB8027 X-Spam-Status: No, score=-0.1 required=5.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FORGED_GMAIL_RCVD,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,NML_ADSP_CUSTOM_MED, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Add Nuvoton NPCM BMC SoCs support to USB ChipIdea driver. NPCM SoC include ChipIdea IP block that used for USB device controller mode. Signed-off-by: Tomer Maimon --- drivers/usb/chipidea/Kconfig | 4 + drivers/usb/chipidea/Makefile | 1 + drivers/usb/chipidea/ci_hdrc_npcm.c | 114 ++++++++++++++++++++++++++++ 3 files changed, 119 insertions(+) create mode 100644 drivers/usb/chipidea/ci_hdrc_npcm.c diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig index c815824a0b2d..bab45bc62361 100644 --- a/drivers/usb/chipidea/Kconfig +++ b/drivers/usb/chipidea/Kconfig @@ -43,6 +43,10 @@ config USB_CHIPIDEA_MSM tristate "Enable MSM hsusb glue driver" if EXPERT default USB_CHIPIDEA +config USB_CHIPIDEA_NPCM + tristate "Enable NPCM hsusb glue driver" if EXPERT + default USB_CHIPIDEA + config USB_CHIPIDEA_IMX tristate "Enable i.MX USB glue driver" if EXPERT depends on OF diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index 71afeab97e83..718cb24603dd 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -13,6 +13,7 @@ ci_hdrc-$(CONFIG_USB_OTG_FSM) += otg_fsm.o obj-$(CONFIG_USB_CHIPIDEA_GENERIC) += ci_hdrc_usb2.o obj-$(CONFIG_USB_CHIPIDEA_MSM) += ci_hdrc_msm.o +obj-$(CONFIG_USB_CHIPIDEA_NPCM) += ci_hdrc_npcm.o obj-$(CONFIG_USB_CHIPIDEA_PCI) += ci_hdrc_pci.o obj-$(CONFIG_USB_CHIPIDEA_IMX) += usbmisc_imx.o ci_hdrc_imx.o obj-$(CONFIG_USB_CHIPIDEA_TEGRA) += ci_hdrc_tegra.o diff --git a/drivers/usb/chipidea/ci_hdrc_npcm.c b/drivers/usb/chipidea/ci_hdrc_npcm.c new file mode 100644 index 000000000000..37b64a3dbd96 --- /dev/null +++ b/drivers/usb/chipidea/ci_hdrc_npcm.c @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2023 Nuvoton Technology corporation. + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ci.h" + +struct npcm_udc_data { + struct platform_device *ci; + struct clk *core_clk; + struct ci_hdrc_platform_data pdata; +}; + +static int npcm_udc_notify_event(struct ci_hdrc *ci, unsigned event) +{ + struct device *dev = ci->dev->parent; + + switch (event) { + case CI_HDRC_CONTROLLER_RESET_EVENT: + /* clear all mode bits */ + hw_write(ci, OP_USBMODE, 0xffffffff, 0x0); + break; + default: + dev_dbg(dev, "unknown ci_hdrc event\n"); + break; + } + + return 0; +} + +static int npcm_udc_probe(struct platform_device *pdev) +{ + int ret; + struct npcm_udc_data *ci; + struct platform_device *plat_ci; + struct device *dev = &pdev->dev; + + ci = devm_kzalloc(&pdev->dev, sizeof(*ci), GFP_KERNEL); + if (!ci) + return -ENOMEM; + platform_set_drvdata(pdev, ci); + + ci->core_clk = devm_clk_get_optional(dev, NULL); + if (IS_ERR(ci->core_clk)) + return PTR_ERR(ci->core_clk); + + ret = clk_prepare_enable(ci->core_clk); + if (ret) + return dev_err_probe(dev, ret, "failed to enable the clock: %d\n", ret); + + ci->pdata.name = dev_name(dev); + ci->pdata.capoffset = DEF_CAPOFFSET; + ci->pdata.flags = CI_HDRC_REQUIRES_ALIGNED_DMA | + CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS; + ci->pdata.phy_mode = USBPHY_INTERFACE_MODE_UTMI; + ci->pdata.notify_event = npcm_udc_notify_event; + + plat_ci = ci_hdrc_add_device(dev, pdev->resource, pdev->num_resources, + &ci->pdata); + if (IS_ERR(plat_ci)) { + ret = PTR_ERR(plat_ci); + dev_err(dev, "failed to register HDRC NPCM device: %d\n", ret); + goto clk_err; + } + + pm_runtime_no_callbacks(dev); + pm_runtime_enable(dev); + + return 0; + +clk_err: + clk_disable_unprepare(ci->core_clk); + return ret; +} + +static int npcm_udc_remove(struct platform_device *pdev) +{ + struct npcm_udc_data *ci = platform_get_drvdata(pdev); + + pm_runtime_disable(&pdev->dev); + ci_hdrc_remove_device(ci->ci); + clk_disable_unprepare(ci->core_clk); + + return 0; +} + +static const struct of_device_id npcm_udc_dt_match[] = { + { .compatible = "nuvoton,npcm750-udc", }, + { .compatible = "nuvoton,npcm845-udc", }, + { } +}; +MODULE_DEVICE_TABLE(of, npcm_udc_dt_match); + +static struct platform_driver npcm_udc_driver = { + .probe = npcm_udc_probe, + .remove = npcm_udc_remove, + .driver = { + .name = "npcm_udc", + .of_match_table = npcm_udc_dt_match, + }, +}; + +module_platform_driver(npcm_udc_driver); + +MODULE_DESCRIPTION("NPCM USB device controller driver"); +MODULE_AUTHOR("Tomer Maimon "); +MODULE_LICENSE("GPL v2");