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Fri, 6 Mar 2020 14:44:04 +0000 From: To: CC: , , , , , , Subject: [PATCH 1/2] staging: wilc1000: use 'interrupts' property instead of 'irq-gpio' Thread-Topic: [PATCH 1/2] staging: wilc1000: use 'interrupts' property instead of 'irq-gpio' Thread-Index: AQHV88WupU/867Y5g0u3Z47AmpcYLQ== Date: Fri, 6 Mar 2020 14:44:04 +0000 Message-ID: <20200306144400.4269-2-ajay.kathat@microchip.com> References: <20200306144400.4269-1-ajay.kathat@microchip.com> In-Reply-To: <20200306144400.4269-1-ajay.kathat@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.17.1 x-originating-ip: [49.205.218.40] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 45dd51ea-e824-4377-f98f-08d7c1dcd184 x-ms-traffictypediagnostic: BN6PR11MB1362: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8273; x-forefront-prvs: 0334223192 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(136003)(39860400002)(366004)(346002)(376002)(396003)(189003)(199004)(2906002)(81166006)(6506007)(5660300002)(6512007)(81156014)(64756008)(6486002)(4326008)(8936002)(8676002)(36756003)(91956017)(66556008)(76116006)(71200400001)(54906003)(66946007)(66476007)(66446008)(2616005)(316002)(86362001)(1076003)(6916009)(966005)(107886003)(478600001)(186003)(26005); DIR:OUT; SFP:1101; SCL:1; SRVR:BN6PR11MB1362; H:BN6PR11MB3985.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-ms-exchange-antispam-messagedata: T80WkTgCjgcv6JVthYtF+b+EddOqeRWXU9PCdC/MlBNew5/q3vHvWwZvdY34THfJDQCekdEB7gCg0lk6jCQEnp1YgvspswncPCGK5+jseVW4yCPH6tTrbJ247Oze1bN23snaqus3qmQvPD3Efv+gCw== MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 45dd51ea-e824-4377-f98f-08d7c1dcd184 X-MS-Exchange-CrossTenant-originalarrivaltime: 06 Mar 2020 14:44:04.6534 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: uxseXKGiaxaCQYFDI6Npyg34li0VxX2Xm4ZYoqS9adhwSBXCA2hxvmr3td1rBuao7bOw6wpmjDgWUHWKhmTdpelDLbATIZX9s1esYdTXAdA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR11MB1362 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Ajay Singh Make use of 'interrupts' property instead of using gpio for handling the interrupt as suggested in [1]. [1]. https://lore.kernel.org/linux-wireless/20200303015558.GA6876@bogus/ Signed-off-by: Ajay Singh --- .../net/wireless/microchip,wilc1000.yaml | 79 +++++++++++++++++++ .../wilc1000/microchip,wilc1000,sdio.yaml | 8 +- .../wilc1000/microchip,wilc1000,spi.yaml | 8 +- drivers/staging/wilc1000/netdev.c | 24 ++---- drivers/staging/wilc1000/netdev.h | 1 - drivers/staging/wilc1000/sdio.c | 31 +++----- drivers/staging/wilc1000/spi.c | 15 +--- drivers/staging/wilc1000/wlan.h | 1 - 8 files changed, 108 insertions(+), 59 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml diff --git a/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml new file mode 100644 index 000000000000..a1914449ad07 --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/wireless/microchip,wilc1000.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip WILC wireless devicetree bindings + +maintainers: + - Adham Abozaeid + - Ajay Singh + +description: + The wilc1000 chips can be connected via SPI or SDIO. This document + describes the binding to connect wilc devices. + +properties: + compatible: + const: microchip,wilc1000 + + spi-max-frequency: + description: Maximum SPI clocking speed of device in Hz. + maxItems: 1 + + reg: + description: Chip select address of device. + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: phandle to the clock connected on rtc clock line. + maxItems: 1 + + clock-names: + const: rtc + +required: + - compatible + - reg + - interrupts + +examples: + - | + spi1: spi@fc018000 { + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&pioB 21 0>; + wifi@0 { + compatible = "microchip,wilc1000"; + spi-max-frequency = <48000000>; + reg = <0>; + interrupt-parent = <&pioC>; + interrupts = <27 0>; + clocks = <&pck1>; + clock-names = "rtc"; + }; + }; + + - | + mmc1: mmc@fc000000 { + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3>; + non-removable; + vmmc-supply = <&vcc_mmc1_reg>; + vqmmc-supply = <&vcc_3v3_reg>; + bus-width = <4>; + wifi@0 { + compatible = "microchip,wilc1000"; + reg = <0>; + interrupt-parent = <&pioC>; + interrupts = <27 0>; + clocks = <&pck1>; + clock-names = "rtc"; + }; + }; diff --git a/drivers/staging/wilc1000/microchip,wilc1000,sdio.yaml b/drivers/staging/wilc1000/microchip,wilc1000,sdio.yaml index b338f569f7e2..9df7327bc668 100644 --- a/drivers/staging/wilc1000/microchip,wilc1000,sdio.yaml +++ b/drivers/staging/wilc1000/microchip,wilc1000,sdio.yaml @@ -19,8 +19,7 @@ properties: compatible: const: microchip,wilc1000-sdio - irq-gpios: - description: The GPIO phandle connect to a host IRQ. + interrupts: maxItems: 1 reg: @@ -40,7 +39,7 @@ properties: required: - compatible - - irq-gpios + - interrupts - reg examples: @@ -56,7 +55,8 @@ examples: status = "okay"; wilc_sdio@0 { compatible = "microchip,wilc1000-sdio"; - irq-gpios = <&pioC 27 0>; + interrupt-parent = <&pioC>; + interrupts = <27 0>; reg = <0>; clocks = <&pck1>; clock-names = "rtc_clk"; diff --git a/drivers/staging/wilc1000/microchip,wilc1000,spi.yaml b/drivers/staging/wilc1000/microchip,wilc1000,spi.yaml index cc8ed64ce627..dd5e8da1f562 100644 --- a/drivers/staging/wilc1000/microchip,wilc1000,spi.yaml +++ b/drivers/staging/wilc1000/microchip,wilc1000,spi.yaml @@ -26,8 +26,7 @@ properties: description: Chip select address of device. maxItems: 1 - irq-gpios: - description: The GPIO phandle connect to a host IRQ. + interrupts: maxItems: 1 clocks: @@ -38,7 +37,7 @@ required: - compatible - spi-max-frequency - reg - - irq-gpios + - interrupts examples: - | @@ -51,7 +50,8 @@ examples: compatible = "microchip,wilc1000-spi"; spi-max-frequency = <48000000>; reg = <0>; - irq-gpios = <&pioC 27 0>; + interrupt-parent = <&pioC>; + interrupts = <27 0>; clocks = <&pck1>; clock-names = "rtc_clk"; assigned-clocks = <&pck1>; diff --git a/drivers/staging/wilc1000/netdev.c b/drivers/staging/wilc1000/netdev.c index 045f5cdfdca0..a61c1a7aefa8 100644 --- a/drivers/staging/wilc1000/netdev.c +++ b/drivers/staging/wilc1000/netdev.c @@ -46,29 +46,21 @@ static irqreturn_t isr_bh_routine(int irq, void *userdata) static int init_irq(struct net_device *dev) { - int ret = 0; struct wilc_vif *vif = netdev_priv(dev); struct wilc *wl = vif->wilc; - - ret = gpiod_direction_input(wl->gpio_irq); - if (ret) { - netdev_err(dev, "could not obtain gpio for WILC_INTR\n"); - return ret; - } - - wl->dev_irq_num = gpiod_to_irq(wl->gpio_irq); + int ret; ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine, isr_bh_routine, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "WILC_IRQ", dev); - if (ret < 0) - netdev_err(dev, "Failed to request IRQ\n"); - else - netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n", - wl->dev_irq_num); + if (ret) { + netdev_err(dev, "Failed to request IRQ [%d]\n", ret); + return ret; + } + netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n", wl->dev_irq_num); - return ret; + return 0; } static void deinit_irq(struct net_device *dev) @@ -501,7 +493,7 @@ static int wilc_wlan_initialize(struct net_device *dev, struct wilc_vif *vif) if (ret) goto fail_wilc_wlan; - if (wl->gpio_irq && init_irq(dev)) { + if (wl->dev_irq_num && init_irq(dev)) { ret = -EIO; goto fail_threads; } diff --git a/drivers/staging/wilc1000/netdev.h b/drivers/staging/wilc1000/netdev.h index e3689e2a4abb..61cbec674a62 100644 --- a/drivers/staging/wilc1000/netdev.h +++ b/drivers/staging/wilc1000/netdev.h @@ -209,7 +209,6 @@ struct wilc { const struct wilc_hif_func *hif_func; int io_type; s8 mac_status; - struct gpio_desc *gpio_irq; struct clk *rtc_clk; bool initialized; int dev_irq_num; diff --git a/drivers/staging/wilc1000/sdio.c b/drivers/staging/wilc1000/sdio.c index 2301e90c21ca..44b426874c1b 100644 --- a/drivers/staging/wilc1000/sdio.c +++ b/drivers/staging/wilc1000/sdio.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "netdev.h" #include "cfg80211.h" @@ -122,33 +123,32 @@ static int wilc_sdio_probe(struct sdio_func *func, { struct wilc *wilc; int ret; - struct gpio_desc *gpio = NULL; struct wilc_sdio *sdio_priv; sdio_priv = kzalloc(sizeof(*sdio_priv), GFP_KERNEL); if (!sdio_priv) return -ENOMEM; - if (IS_ENABLED(CONFIG_WILC1000_HW_OOB_INTR)) { - gpio = gpiod_get(&func->dev, "irq", GPIOD_IN); - if (IS_ERR(gpio)) { - /* get the GPIO descriptor from hardcode GPIO number */ - gpio = gpio_to_desc(GPIO_NUM); - if (!gpio) - dev_err(&func->dev, "failed to get irq gpio\n"); - } - } - ret = wilc_cfg80211_init(&wilc, &func->dev, WILC_HIF_SDIO, &wilc_hif_sdio); if (ret) { kfree(sdio_priv); return ret; } + + if (IS_ENABLED(CONFIG_WILC1000_HW_OOB_INTR)) { + struct device_node *np = func->card->dev.of_node; + int irq_num = of_irq_get(np, 0); + + if (irq_num > 0) { + wilc->dev_irq_num = irq_num; + sdio_priv->irq_gpio = true; + } + } + sdio_set_drvdata(func, wilc); wilc->bus_data = sdio_priv; wilc->dev = &func->dev; - wilc->gpio_irq = gpio; wilc->rtc_clk = devm_clk_get(&func->card->dev, "rtc_clk"); if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) @@ -164,10 +164,6 @@ static void wilc_sdio_remove(struct sdio_func *func) { struct wilc *wilc = sdio_get_drvdata(func); - /* free the GPIO in module remove */ - if (wilc->gpio_irq) - gpiod_put(wilc->gpio_irq); - if (!IS_ERR(wilc->rtc_clk)) clk_disable_unprepare(wilc->rtc_clk); @@ -592,9 +588,6 @@ static int wilc_sdio_init(struct wilc *wilc, bool resume) int loop, ret; u32 chipid; - if (!resume) - sdio_priv->irq_gpio = wilc->dev_irq_num; - /** * function 0 csa enable **/ diff --git a/drivers/staging/wilc1000/spi.c b/drivers/staging/wilc1000/spi.c index dfd25df75780..852f318a86f0 100644 --- a/drivers/staging/wilc1000/spi.c +++ b/drivers/staging/wilc1000/spi.c @@ -151,21 +151,12 @@ static int wilc_bus_probe(struct spi_device *spi) { int ret; struct wilc *wilc; - struct gpio_desc *gpio; struct wilc_spi *spi_priv; spi_priv = kzalloc(sizeof(*spi_priv), GFP_KERNEL); if (!spi_priv) return -ENOMEM; - gpio = gpiod_get(&spi->dev, "irq", GPIOD_IN); - if (IS_ERR(gpio)) { - /* get the GPIO descriptor from hardcode GPIO number */ - gpio = gpio_to_desc(GPIO_NUM); - if (!gpio) - dev_err(&spi->dev, "failed to get the irq gpio\n"); - } - ret = wilc_cfg80211_init(&wilc, &spi->dev, WILC_HIF_SPI, &wilc_hif_spi); if (ret) { kfree(spi_priv); @@ -175,7 +166,7 @@ static int wilc_bus_probe(struct spi_device *spi) spi_set_drvdata(spi, wilc); wilc->dev = &spi->dev; wilc->bus_data = spi_priv; - wilc->gpio_irq = gpio; + wilc->dev_irq_num = spi->irq; wilc->rtc_clk = devm_clk_get(&spi->dev, "rtc_clk"); if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) @@ -190,10 +181,6 @@ static int wilc_bus_remove(struct spi_device *spi) { struct wilc *wilc = spi_get_drvdata(spi); - /* free the GPIO in module remove */ - if (wilc->gpio_irq) - gpiod_put(wilc->gpio_irq); - if (!IS_ERR(wilc->rtc_clk)) clk_disable_unprepare(wilc->rtc_clk); diff --git a/drivers/staging/wilc1000/wlan.h b/drivers/staging/wilc1000/wlan.h index 5999c5490ea5..7689569cd82f 100644 --- a/drivers/staging/wilc1000/wlan.h +++ b/drivers/staging/wilc1000/wlan.h @@ -206,7 +206,6 @@ #define WILC_TX_BUFF_SIZE (64 * 1024) #define MODALIAS "WILC_SPI" -#define GPIO_NUM 0x44 #define WILC_PKT_HDR_CONFIG_FIELD BIT(31) #define WILC_PKT_HDR_OFFSET_FIELD GENMASK(30, 22)