From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/mmc/host/dw_mmc-pltfm.c | 140 +++++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 kernel/drivers/mmc/host/dw_mmc-pltfm.c (limited to 'kernel/drivers/mmc/host/dw_mmc-pltfm.c') diff --git a/kernel/drivers/mmc/host/dw_mmc-pltfm.c b/kernel/drivers/mmc/host/dw_mmc-pltfm.c new file mode 100644 index 000000000..ec6dbcdec --- /dev/null +++ b/kernel/drivers/mmc/host/dw_mmc-pltfm.c @@ -0,0 +1,140 @@ +/* + * Synopsys DesignWare Multimedia Card Interface driver + * + * Copyright (C) 2009 NXP Semiconductors + * Copyright (C) 2009, 2010 Imagination Technologies Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "dw_mmc.h" +#include "dw_mmc-pltfm.h" + +static void dw_mci_pltfm_prepare_command(struct dw_mci *host, u32 *cmdr) +{ + *cmdr |= SDMMC_CMD_USE_HOLD_REG; +} + +static const struct dw_mci_drv_data socfpga_drv_data = { + .prepare_command = dw_mci_pltfm_prepare_command, +}; + +static const struct dw_mci_drv_data pistachio_drv_data = { + .prepare_command = dw_mci_pltfm_prepare_command, +}; + +int dw_mci_pltfm_register(struct platform_device *pdev, + const struct dw_mci_drv_data *drv_data) +{ + struct dw_mci *host; + struct resource *regs; + + host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); + if (!host) + return -ENOMEM; + + host->irq = platform_get_irq(pdev, 0); + if (host->irq < 0) + return host->irq; + + host->drv_data = drv_data; + host->dev = &pdev->dev; + host->irq_flags = 0; + host->pdata = pdev->dev.platform_data; + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + host->regs = devm_ioremap_resource(&pdev->dev, regs); + if (IS_ERR(host->regs)) + return PTR_ERR(host->regs); + + platform_set_drvdata(pdev, host); + return dw_mci_probe(host); +} +EXPORT_SYMBOL_GPL(dw_mci_pltfm_register); + +#ifdef CONFIG_PM_SLEEP +/* + * TODO: we should probably disable the clock to the card in the suspend path. + */ +static int dw_mci_pltfm_suspend(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + return dw_mci_suspend(host); +} + +static int dw_mci_pltfm_resume(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + return dw_mci_resume(host); +} +#endif /* CONFIG_PM_SLEEP */ + +SIMPLE_DEV_PM_OPS(dw_mci_pltfm_pmops, dw_mci_pltfm_suspend, dw_mci_pltfm_resume); +EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops); + +static const struct of_device_id dw_mci_pltfm_match[] = { + { .compatible = "snps,dw-mshc", }, + { .compatible = "altr,socfpga-dw-mshc", + .data = &socfpga_drv_data }, + { .compatible = "img,pistachio-dw-mshc", + .data = &pistachio_drv_data }, + {}, +}; +MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match); + +static int dw_mci_pltfm_probe(struct platform_device *pdev) +{ + const struct dw_mci_drv_data *drv_data = NULL; + const struct of_device_id *match; + + if (pdev->dev.of_node) { + match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node); + drv_data = match->data; + } + + return dw_mci_pltfm_register(pdev, drv_data); +} + +int dw_mci_pltfm_remove(struct platform_device *pdev) +{ + struct dw_mci *host = platform_get_drvdata(pdev); + + dw_mci_remove(host); + return 0; +} +EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove); + +static struct platform_driver dw_mci_pltfm_driver = { + .probe = dw_mci_pltfm_probe, + .remove = dw_mci_pltfm_remove, + .driver = { + .name = "dw_mmc", + .of_match_table = dw_mci_pltfm_match, + .pm = &dw_mci_pltfm_pmops, + }, +}; + +module_platform_driver(dw_mci_pltfm_driver); + +MODULE_DESCRIPTION("DW Multimedia Card Interface driver"); +MODULE_AUTHOR("NXP Semiconductor VietNam"); +MODULE_AUTHOR("Imagination Technologies Ltd"); +MODULE_LICENSE("GPL v2"); -- cgit 1.2.3-korg