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[89.176.190.177]) by mx.google.com with ESMTPSA id fu7sm3561753wib.2.2014.07.18.00.22.18 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 18 Jul 2014 00:22:19 -0700 (PDT) From: Andreas Fenkart To: Balaji T K Cc: linux-omap@vger.kernel.org, linux-mmc@vger.kernel.org, Tony Lindgren , ulf.hansson@linaro.org, daniel@zonque.org, Andreas Fenkart Subject: [PATCH 3/3] omap_hsmmc: reuse mmc/slot-gpio for card detect instead of open-coded version Date: Fri, 18 Jul 2014 09:22:03 +0200 Message-Id: <1405668123-17073-4-git-send-email-afenkart@gmail.com> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1405668123-17073-1-git-send-email-afenkart@gmail.com> References: <1405668123-17073-1-git-send-email-afenkart@gmail.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Andreas Fenkart diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 1b9f279..25aafa6 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -231,15 +231,6 @@ struct omap_mmc_of_data { static void omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host); -static int omap_hsmmc_card_detect(struct device *dev, int slot) -{ - struct omap_hsmmc_host *host = dev_get_drvdata(dev); - struct omap_mmc_platform_data *mmc = host->pdata; - - /* NOTE: assumes card detect signal is active-low */ - return !gpio_get_value_cansleep(mmc->slots[0].switch_pin); -} - static int omap_hsmmc_get_cover_state(struct device *dev, int slot) { struct omap_hsmmc_host *host = dev_get_drvdata(dev); @@ -256,7 +247,7 @@ static int omap_hsmmc_suspend_cdirq(struct device *dev, int slot) struct omap_hsmmc_host *host = dev_get_drvdata(dev); struct omap_mmc_platform_data *mmc = host->pdata; - disable_irq(mmc->slots[0].card_detect_irq); + disable_irq(mmc->slots[0].cover_detect_irq); return 0; } @@ -265,7 +256,7 @@ static int omap_hsmmc_resume_cdirq(struct device *dev, int slot) struct omap_hsmmc_host *host = dev_get_drvdata(dev); struct omap_mmc_platform_data *mmc = host->pdata; - enable_irq(mmc->slots[0].card_detect_irq); + enable_irq(mmc->slots[0].cover_detect_irq); return 0; } @@ -458,23 +449,26 @@ static int omap_hsmmc_gpio_init(struct mmc_host *mmc, if (ret) return ret; ret = gpio_direction_input(pdata->slots[0].switch_pin); - if (ret) - goto err_free_sp; + if (ret) { + gpio_free(pdata->slots[0].switch_pin); + return ret; + } } else { - pdata->slots[0].card_detect = omap_hsmmc_card_detect; - pdata->slots[0].card_detect_irq = - gpio_to_irq(pdata->slots[0].switch_pin); - - ret = gpio_request(pdata->slots[0].switch_pin, - "mmc_cd"); - if (ret) + /* copy & paste from from mmc_of_parse */ + ret = mmc_gpio_request_cd(mmc, + pdata->slots[0].switch_pin, + 0); + if (ret < 0) { + dev_err(pdata->dev, + "Failed to request CD GPIO #%d: %d!\n", + pdata->slots[0].switch_pin, ret); return ret; - ret = gpio_direction_input(pdata->slots[0].switch_pin); - if (ret) - goto err_free_sp; + } else { + dev_info(pdata->dev, "Got CD GPIO #%d.\n", + pdata->slots[0].switch_pin); + } } - } else - pdata->slots[0].switch_pin = -EINVAL; + } if (gpio_is_valid(pdata->slots[0].gpio_wp)) { /* copy & paste from from mmc_of_parse */ @@ -492,8 +486,9 @@ static int omap_hsmmc_gpio_init(struct mmc_host *mmc, return 0; err: - if (gpio_is_valid(pdata->slots[0].switch_pin)) -err_free_sp: + mmc_gpio_free_cd(mmc); + if (gpio_is_valid(pdata->slots[0].switch_pin) && + (pdata->slots[0].cover)) gpio_free(pdata->slots[0].switch_pin); return ret; } @@ -501,8 +496,11 @@ err_free_sp: static void omap_hsmmc_gpio_free(struct mmc_host *mmc, struct omap_mmc_platform_data *pdata) { + mmc_gpio_free_cd(mmc); mmc_gpio_free_ro(mmc); - if (gpio_is_valid(pdata->slots[0].switch_pin)) + + if (gpio_is_valid(pdata->slots[0].switch_pin) && + (pdata->slots[0].cover)) gpio_free(pdata->slots[0].switch_pin); } @@ -1289,24 +1287,13 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host) /* * irq handler to notify the core about card insertion/removal */ -static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id) +static irqreturn_t omap_hsmmc_cover_detect(int irq, void *dev_id) { struct omap_hsmmc_host *host = dev_id; - struct omap_mmc_slot_data *slot = &mmc_slot(host); - int carddetect; - - if (slot->card_detect) { - carddetect = slot->card_detect(host->dev, host->slot_id); - if (carddetect) - mmc_detect_change(host->mmc, (HZ * 200) / 1000); - else - mmc_detect_change(host->mmc, (HZ * 50) / 1000); - } else { - sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch"); - omap_hsmmc_protect_card(host); - mmc_detect_change(host->mmc, (HZ * 200) / 1000); - } + sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch"); + omap_hsmmc_protect_card(host); + mmc_detect_change(host->mmc, (HZ * 200) / 1000); return IRQ_HANDLED; } @@ -1669,15 +1656,6 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) pm_runtime_put_autosuspend(host->dev); } -static int omap_hsmmc_get_cd(struct mmc_host *mmc) -{ - struct omap_hsmmc_host *host = mmc_priv(mmc); - - if (!mmc_slot(host).card_detect) - return -ENOSYS; - return mmc_slot(host).card_detect(host->dev, host->slot_id); -} - static void omap_hsmmc_init_card(struct mmc_host *mmc, struct mmc_card *card) { struct omap_hsmmc_host *host = mmc_priv(mmc); @@ -1832,7 +1810,7 @@ static const struct mmc_host_ops omap_hsmmc_ops = { .pre_req = omap_hsmmc_pre_req, .request = omap_hsmmc_request, .set_ios = omap_hsmmc_set_ios, - .get_cd = omap_hsmmc_get_cd, + .get_cd = mmc_gpio_get_cd, .get_ro = mmc_gpio_get_ro, .init_card = omap_hsmmc_init_card, .enable_sdio_irq = omap_hsmmc_enable_sdio_irq, @@ -2228,10 +2206,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev) mmc->ocr_avail = mmc_slot(host).ocr_mask; /* Request IRQ for card detect */ - if ((mmc_slot(host).card_detect_irq)) { + if ((mmc_slot(host).cover_detect_irq)) { ret = devm_request_threaded_irq(&pdev->dev, - mmc_slot(host).card_detect_irq, - NULL, omap_hsmmc_detect, + mmc_slot(host).cover_detect_irq, + NULL, omap_hsmmc_cover_detect, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, mmc_hostname(mmc), host); if (ret) { @@ -2266,7 +2244,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev) if (ret < 0) goto err_slot_name; } - if (mmc_slot(host).card_detect_irq && mmc_slot(host).get_cover_state) { + if (mmc_slot(host).cover_detect_irq && mmc_slot(host).get_cover_state) { ret = device_create_file(&mmc->class_dev, &dev_attr_cover_switch); if (ret < 0) diff --git a/include/linux/platform_data/mmc-omap.h b/include/linux/platform_data/mmc-omap.h index d113005..250b437 100644 --- a/include/linux/platform_data/mmc-omap.h +++ b/include/linux/platform_data/mmc-omap.h @@ -142,10 +142,6 @@ struct omap_mmc_platform_data { const char *name; u32 ocr_mask; - /* Card detection IRQs */ - int card_detect_irq; - int (*card_detect)(struct device *dev, int slot); - unsigned int ban_openended:1; } slots[OMAP_MMC_MAX_SLOTS];