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Mon, 9 Sep 2019 14:12:30 +0000 From: To: , , , , , CC: , , Subject: [PATCH v2 2/2] staging: wilc1000: look for rtc_clk clock Thread-Topic: [PATCH v2 2/2] staging: wilc1000: look for rtc_clk clock Thread-Index: AQHVZxidJg0uPq4NhUukllBtOHKh4Q== Date: Mon, 9 Sep 2019 14:12:29 +0000 Message-ID: <1568037993-4646-2-git-send-email-eugen.hristev@microchip.com> References: <1568037993-4646-1-git-send-email-eugen.hristev@microchip.com> In-Reply-To: <1568037993-4646-1-git-send-email-eugen.hristev@microchip.com> Accept-Language: en-US, ro-RO Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR09CA0080.eurprd09.prod.outlook.com (2603:10a6:802:29::24) To DM5PR11MB1242.namprd11.prod.outlook.com (2603:10b6:3:14::8) x-mailer: git-send-email 2.7.4 x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 1e9d70e2-9e4f-422f-c910-08d7352fbfdf x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(2017052603328)(7193020);SRVR:DM5PR11MB1596; 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This is optional. The signal may be hardcoded and no need to be requested, but if DT provides it, use it. Signed-off-by: Eugen Hristev Acked-by: Ajay Singh --- Changes in v2: - rebased on staging-next drivers/staging/wilc1000/wilc_sdio.c | 14 ++++++++++++++ drivers/staging/wilc1000/wilc_wfi_netdevice.h | 1 + 2 files changed, 15 insertions(+) diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c index 2f9aa36..c787c5d 100644 --- a/drivers/staging/wilc1000/wilc_sdio.c +++ b/drivers/staging/wilc1000/wilc_sdio.c @@ -4,6 +4,7 @@ * All rights reserved. */ +#include #include #include @@ -151,6 +152,12 @@ static int wilc_sdio_probe(struct sdio_func *func, 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) + return -EPROBE_DEFER; + else if (!IS_ERR(wilc->rtc_clk)) + clk_prepare_enable(wilc->rtc_clk); + dev_info(&func->dev, "Driver Initializing success\n"); return 0; } @@ -162,6 +169,10 @@ static void wilc_sdio_remove(struct sdio_func *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); + wilc_netdev_cleanup(wilc); } @@ -193,6 +204,9 @@ static int wilc_sdio_suspend(struct device *dev) dev_info(dev, "sdio suspend\n"); chip_wakeup(wilc); + if (!IS_ERR(wilc->rtc_clk)) + clk_disable_unprepare(wilc->rtc_clk); + if (wilc->suspend_event) { host_sleep_notify(wilc); chip_allow_sleep(wilc); diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index 7e7ce94..978a8bd 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -216,6 +216,7 @@ struct wilc { int io_type; s8 mac_status; struct gpio_desc *gpio_irq; + struct clk *rtc_clk; bool initialized; int dev_irq_num; int close;