diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-pltfm.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pltfm.c | 93 |
1 files changed, 22 insertions, 71 deletions
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c index b231c9a3f888..7f6ac636f040 100644 --- a/drivers/mmc/host/sdhci-pltfm.c +++ b/drivers/mmc/host/sdhci-pltfm.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * sdhci-pltfm.c Support for SDHCI platform devices * Copyright (c) 2009 Intel Corporation @@ -7,19 +8,6 @@ * * Authors: Xiaobo Xie <X.Xie@freescale.com> * Anton Vorontsov <avorontsov@ru.mvista.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: @@ -31,7 +19,6 @@ #include <linux/err.h> #include <linux/module.h> #include <linux/property.h> -#include <linux/of.h> #ifdef CONFIG_PPC #include <asm/machdep.h> #endif @@ -66,27 +53,20 @@ static bool sdhci_wp_inverted(struct device *dev) #endif /* CONFIG_PPC */ } -#ifdef CONFIG_OF static void sdhci_get_compatibility(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct sdhci_host *host = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node; - - if (!np) - return; - if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc")) + if (device_is_compatible(dev, "fsl,p2020-rev1-esdhc")) host->quirks |= SDHCI_QUIRK_BROKEN_DMA; - if (of_device_is_compatible(np, "fsl,p2020-esdhc") || - of_device_is_compatible(np, "fsl,p1010-esdhc") || - of_device_is_compatible(np, "fsl,t4240-esdhc") || - of_device_is_compatible(np, "fsl,mpc8536-esdhc")) + if (device_is_compatible(dev, "fsl,p2020-esdhc") || + device_is_compatible(dev, "fsl,p1010-esdhc") || + device_is_compatible(dev, "fsl,t4240-esdhc") || + device_is_compatible(dev, "fsl,mpc8536-esdhc")) host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; } -#else -void sdhci_get_compatibility(struct platform_device *pdev) {} -#endif /* CONFIG_OF */ void sdhci_get_property(struct platform_device *pdev) { @@ -130,30 +110,22 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, size_t priv_size) { struct sdhci_host *host; - struct resource *iomem; void __iomem *ioaddr; - int irq, ret; + int irq; - iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ioaddr = devm_ioremap_resource(&pdev->dev, iomem); - if (IS_ERR(ioaddr)) { - ret = PTR_ERR(ioaddr); - goto err; - } + ioaddr = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(ioaddr)) + return ERR_CAST(ioaddr); irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "failed to get IRQ number\n"); - ret = irq; - goto err; - } + if (irq < 0) + return ERR_PTR(irq); host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pltfm_host) + priv_size); - if (IS_ERR(host)) { - ret = PTR_ERR(host); - goto err; + dev_err(&pdev->dev, "%s failed %pe\n", __func__, host); + return ERR_CAST(host); } host->ioaddr = ioaddr; @@ -171,26 +143,14 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, platform_set_drvdata(pdev, host); return host; -err: - dev_err(&pdev->dev, "%s failed %d\n", __func__, ret); - return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(sdhci_pltfm_init); -void sdhci_pltfm_free(struct platform_device *pdev) -{ - struct sdhci_host *host = platform_get_drvdata(pdev); - - sdhci_free_host(host); -} -EXPORT_SYMBOL_GPL(sdhci_pltfm_free); - -int sdhci_pltfm_register(struct platform_device *pdev, - const struct sdhci_pltfm_data *pdata, - size_t priv_size) +int sdhci_pltfm_init_and_add_host(struct platform_device *pdev, + const struct sdhci_pltfm_data *pdata, + size_t priv_size) { struct sdhci_host *host; - int ret = 0; host = sdhci_pltfm_init(pdev, pdata, priv_size); if (IS_ERR(host)) @@ -198,27 +158,18 @@ int sdhci_pltfm_register(struct platform_device *pdev, sdhci_get_property(pdev); - ret = sdhci_add_host(host); - if (ret) - sdhci_pltfm_free(pdev); - - return ret; + return sdhci_add_host(host); } -EXPORT_SYMBOL_GPL(sdhci_pltfm_register); +EXPORT_SYMBOL_GPL(sdhci_pltfm_init_and_add_host); -int sdhci_pltfm_unregister(struct platform_device *pdev) +void sdhci_pltfm_remove(struct platform_device *pdev) { struct sdhci_host *host = platform_get_drvdata(pdev); - struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff); sdhci_remove_host(host, dead); - clk_disable_unprepare(pltfm_host->clk); - sdhci_pltfm_free(pdev); - - return 0; } -EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister); +EXPORT_SYMBOL_GPL(sdhci_pltfm_remove); #ifdef CONFIG_PM_SLEEP int sdhci_pltfm_suspend(struct device *dev) |