From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulf Hansson Subject: [PATCH 02/20] mmc: mmci: Convert to devm functions Date: Fri, 21 Mar 2014 13:13:59 +0100 Message-ID: <1395404057-27835-3-git-send-email-ulf.hansson@linaro.org> References: <1395404057-27835-1-git-send-email-ulf.hansson@linaro.org> Return-path: In-Reply-To: <1395404057-27835-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Russell King , Linus Walleij Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Ulf Hansson List-Id: devicetree@vger.kernel.org Converting to devm functions to simplify error handling in ->probe() and to cleanup ->remove(). Signed-off-by: Ulf Hansson --- drivers/mmc/host/mmci.c | 51 ++++++++++++++++++----------------------------- 1 file changed, 19 insertions(+), 32 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index b0b81ac..d6f20ba 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -1456,15 +1457,13 @@ static int mmci_probe(struct amba_device *dev, if (np) mmci_dt_populate_generic_pdata(np, plat); - ret = amba_request_regions(dev, DRIVER_NAME); - if (ret) - goto out; + if (!devm_request_mem_region(&dev->dev, dev->res.start, + resource_size(&dev->res), DRIVER_NAME)) + return -ENOMEM; mmc = mmc_alloc_host(sizeof(struct mmci_host), &dev->dev); - if (!mmc) { - ret = -ENOMEM; - goto rel_regions; - } + if (!mmc) + return -ENOMEM; host = mmc_priv(mmc); host->mmc = mmc; @@ -1500,8 +1499,10 @@ static int mmci_probe(struct amba_device *dev, dev_dbg(mmc_dev(mmc), "eventual mclk rate: %u Hz\n", host->mclk); } + host->phybase = dev->res.start; - host->base = ioremap(dev->res.start, resource_size(&dev->res)); + host->base = devm_ioremap(&dev->dev, host->phybase, + resource_size(&dev->res)); if (!host->base) { ret = -ENOMEM; goto clk_disable; @@ -1592,34 +1593,35 @@ static int mmci_probe(struct amba_device *dev, if (plat->gpio_cd == -EPROBE_DEFER) { ret = -EPROBE_DEFER; - goto err_gpio_cd; + goto clk_disable; } if (gpio_is_valid(plat->gpio_cd)) { ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0); if (ret) - goto err_gpio_cd; + goto clk_disable; } if (plat->gpio_wp == -EPROBE_DEFER) { ret = -EPROBE_DEFER; - goto err_gpio_cd; + goto clk_disable; } if (gpio_is_valid(plat->gpio_wp)) { ret = mmc_gpio_request_ro(mmc, plat->gpio_wp); if (ret) - goto err_gpio_cd; + goto clk_disable; } - ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host); + ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED, + DRIVER_NAME " (cmd)", host); if (ret) - goto err_gpio_cd; + goto clk_disable; if (!dev->irq[1]) host->singleirq = true; else { - ret = request_irq(dev->irq[1], mmci_pio_irq, IRQF_SHARED, - DRIVER_NAME " (pio)", host); + ret = devm_request_irq(&dev->dev, dev->irq[1], mmci_pio_irq, + IRQF_SHARED, DRIVER_NAME " (pio)", host); if (ret) - goto irq0_free; + goto clk_disable; } writel(MCI_IRQENABLE, host->base + MMCIMASK0); @@ -1641,17 +1643,10 @@ static int mmci_probe(struct amba_device *dev, return 0; - irq0_free: - free_irq(dev->irq[0], host); - err_gpio_cd: - iounmap(host->base); clk_disable: clk_disable_unprepare(host->clk); host_free: mmc_free_host(mmc); - rel_regions: - amba_release_regions(dev); - out: return ret; } @@ -1677,16 +1672,8 @@ static int mmci_remove(struct amba_device *dev) writel(0, host->base + MMCIDATACTRL); mmci_dma_release(host); - free_irq(dev->irq[0], host); - if (!host->singleirq) - free_irq(dev->irq[1], host); - - iounmap(host->base); clk_disable_unprepare(host->clk); - mmc_free_host(mmc); - - amba_release_regions(dev); } return 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html