Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752799AbaLSXqI (ORCPT ); Fri, 19 Dec 2014 18:46:08 -0500 Received: from cantor2.suse.de ([195.135.220.15]:48788 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752778AbaLSXqE (ORCPT ); Fri, 19 Dec 2014 18:46:04 -0500 From: NeilBrown To: Ulf Hansson , Chris Ball Date: Sat, 20 Dec 2014 10:07:38 +1100 Subject: [PATCH 2b/3] mmc: omap_hsmmc: use slot-gpio library for gpio support. Cc: GTA04 owners , linux-omap , linux-mmc , "linux-kernel@vger.kernel.org" , Felipe Balbi Message-ID: <20141219230738.7511.63649.stgit@notabene.brown> In-Reply-To: <20141219230732.7511.28103.stgit@notabene.brown> References: <20141219230732.7511.28103.stgit@notabene.brown> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Using the common code removes some code duplication, and makes it easier to switch to using mmc_of_parse() which will remove more duplication. This uses the new mmc_gpio_request_cd_isr to provide a non-standard interrupt service routine for card-detect interrupts. Signed-off-by: NeilBrown --- drivers/mmc/host/omap_hsmmc.c | 67 +++++++++-------------------------------- 1 file changed, 14 insertions(+), 53 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 537cba8f1de1..32514b648e3c 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include #include @@ -251,28 +252,22 @@ static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host); static int omap_hsmmc_card_detect(struct device *dev) { struct omap_hsmmc_host *host = dev_get_drvdata(dev); - struct omap_hsmmc_platform_data *mmc = host->pdata; - /* NOTE: assumes card detect signal is active-low */ - return !gpio_get_value_cansleep(mmc->switch_pin); + return mmc_gpio_get_cd(host->mmc); } static int omap_hsmmc_get_wp(struct device *dev) { struct omap_hsmmc_host *host = dev_get_drvdata(dev); - struct omap_hsmmc_platform_data *mmc = host->pdata; - /* NOTE: assumes write protect signal is active-high */ - return gpio_get_value_cansleep(mmc->gpio_wp); + return mmc_gpio_get_ro(host->mmc); } static int omap_hsmmc_get_cover_state(struct device *dev) { struct omap_hsmmc_host *host = dev_get_drvdata(dev); - struct omap_hsmmc_platform_data *mmc = host->pdata; - /* NOTE: assumes card detect signal is active-low */ - return !gpio_get_value_cansleep(mmc->switch_pin); + return mmc_gpio_get_cd(host->mmc); } #ifdef CONFIG_REGULATOR @@ -439,7 +434,10 @@ static inline int omap_hsmmc_have_reg(void) #endif -static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host, +static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id); + +static int omap_hsmmc_gpio_init(struct mmc_host *mmc, + struct omap_hsmmc_host *host, struct omap_hsmmc_platform_data *pdata) { int ret; @@ -452,46 +450,26 @@ static int omap_hsmmc_gpio_init(struct omap_hsmmc_host *host, host->card_detect = omap_hsmmc_card_detect; host->card_detect_irq = gpio_to_irq(pdata->switch_pin); - ret = gpio_request(pdata->switch_pin, "mmc_cd"); + ret = mmc_gpio_request_cd_isr(mmc, omap_hsmmc_detect); if (ret) return ret; - ret = gpio_direction_input(pdata->switch_pin); + ret = mmc_gpio_request_cd(mmc, pdata->switch_pin, 0); if (ret) - goto err_free_sp; + return ret; } else { pdata->switch_pin = -EINVAL; } if (gpio_is_valid(pdata->gpio_wp)) { host->get_ro = omap_hsmmc_get_wp; - ret = gpio_request(pdata->gpio_wp, "mmc_wp"); - if (ret) - goto err_free_cd; - ret = gpio_direction_input(pdata->gpio_wp); + ret = mmc_gpio_request_ro(mmc, pdata->gpio_wp); if (ret) - goto err_free_wp; + return ret; } else { pdata->gpio_wp = -EINVAL; } return 0; - -err_free_wp: - gpio_free(pdata->gpio_wp); -err_free_cd: - if (gpio_is_valid(pdata->switch_pin)) -err_free_sp: - gpio_free(pdata->switch_pin); - return ret; -} - -static void omap_hsmmc_gpio_free(struct omap_hsmmc_host *host, - struct omap_hsmmc_platform_data *pdata) -{ - if (gpio_is_valid(pdata->gpio_wp)) - gpio_free(pdata->gpio_wp); - if (gpio_is_valid(pdata->switch_pin)) - gpio_free(pdata->switch_pin); } /* @@ -2066,7 +2044,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev) host->next_data.cookie = 1; host->pbias_enabled = 0; - ret = omap_hsmmc_gpio_init(host, pdata); + ret = omap_hsmmc_gpio_init(mmc, host, pdata); if (ret) goto err_gpio; @@ -2197,20 +2175,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev) mmc->ocr_avail = mmc_pdata(host)->ocr_mask; - /* Request IRQ for card detect */ - if (host->card_detect_irq) { - ret = devm_request_threaded_irq(&pdev->dev, - host->card_detect_irq, - NULL, omap_hsmmc_detect, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - mmc_hostname(mmc), host); - if (ret) { - dev_err(mmc_dev(host->mmc), - "Unable to grab MMC CD IRQ\n"); - goto err_irq_cd; - } - } - omap_hsmmc_disable_irq(host); /* @@ -2249,7 +2213,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev) err_slot_name: mmc_remove_host(mmc); -err_irq_cd: if (host->use_reg) omap_hsmmc_reg_put(host); err_irq: @@ -2262,7 +2225,6 @@ err_irq: if (host->dbclk) clk_disable_unprepare(host->dbclk); err1: - omap_hsmmc_gpio_free(host, pdata); err_gpio: mmc_free_host(mmc); err: @@ -2288,7 +2250,6 @@ static int omap_hsmmc_remove(struct platform_device *pdev) if (host->dbclk) clk_disable_unprepare(host->dbclk); - omap_hsmmc_gpio_free(host, host->pdata); mmc_free_host(host->mmc); return 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/