Release 4.11 drivers/mmc/host/sdhci-pltfm.c
/*
* sdhci-pltfm.c Support for SDHCI platform devices
* Copyright (c) 2009 Intel Corporation
*
* Copyright (c) 2007, 2011 Freescale Semiconductor, Inc.
* Copyright (c) 2009 MontaVista Software, Inc.
*
* 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:
* SDHCI platform devices
*
* Inspired by sdhci-pci.c, by Pierre Ossman
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#ifdef CONFIG_PPC
#include <asm/machdep.h>
#endif
#include "sdhci-pltfm.h"
unsigned int sdhci_pltfm_clk_get_max_clock(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
return clk_get_rate(pltfm_host->clk);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL_GPL(sdhci_pltfm_clk_get_max_clock);
static const struct sdhci_ops sdhci_pltfm_ops = {
.set_clock = sdhci_set_clock,
.set_bus_width = sdhci_set_bus_width,
.reset = sdhci_reset,
.set_uhs_signaling = sdhci_set_uhs_signaling,
};
#ifdef CONFIG_OF
static bool sdhci_of_wp_inverted(struct device_node *np)
{
if (of_get_property(np, "sdhci,wp-inverted", NULL) ||
of_get_property(np, "wp-inverted", NULL))
return true;
/* Old device trees don't have the wp-inverted property. */
#ifdef CONFIG_PPC
return machine_is(mpc837x_rdb) || machine_is(mpc837x_mds);
#else
return false;
#endif /* CONFIG_PPC */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 48 | 84.21% | 1 | 50.00% |
| Arnd Bergmann | 9 | 15.79% | 1 | 50.00% |
| Total | 57 | 100.00% | 2 | 100.00% |
void sdhci_get_of_property(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
u32 bus_width;
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
(of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
bus_width == 1))
host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
if (sdhci_of_wp_inverted(np))
host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
if (of_get_property(np, "broken-cd", NULL))
host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
if (of_get_property(np, "no-1-8-v", NULL))
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
if (of_device_is_compatible(np, "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"))
host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
of_property_read_u32(np, "clock-frequency", &pltfm_host->clock);
if (of_find_property(np, "keep-power-in-suspend", NULL))
host->mmc->pm_caps |= MMC_PM_KEEP_POWER;
if (of_property_read_bool(np, "wakeup-source") ||
of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */
host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 99 | 39.60% | 1 | 10.00% |
| Jerry Huang | 44 | 17.60% | 2 | 20.00% |
| Abhilash Kesavan | 35 | 14.00% | 1 | 10.00% |
| Arnd Bergmann | 21 | 8.40% | 1 | 10.00% |
| Chris Ball | 17 | 6.80% | 1 | 10.00% |
| Daniel Drake | 17 | 6.80% | 1 | 10.00% |
| Sudeep Holla | 9 | 3.60% | 1 | 10.00% |
| Chunhe Lan | 7 | 2.80% | 1 | 10.00% |
| Tobias Klauser | 1 | 0.40% | 1 | 10.00% |
| Total | 250 | 100.00% | 10 | 100.00% |
#else
void sdhci_get_of_property(struct platform_device *pdev) {}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 9 | 100.00% | 1 | 100.00% |
| Total | 9 | 100.00% | 1 | 100.00% |
#endif /* CONFIG_OF */
EXPORT_SYMBOL_GPL(sdhci_get_of_property);
struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
const struct sdhci_pltfm_data *pdata,
size_t priv_size)
{
struct sdhci_host *host;
struct resource *iomem;
void __iomem *ioaddr;
int irq, ret;
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;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get IRQ number\n");
ret = irq;
goto err;
}
host = sdhci_alloc_host(&pdev->dev,
sizeof(struct sdhci_pltfm_host) + priv_size);
if (IS_ERR(host)) {
ret = PTR_ERR(host);
goto err;
}
host->ioaddr = ioaddr;
host->irq = irq;
host->hw_name = dev_name(&pdev->dev);
if (pdata && pdata->ops)
host->ops = pdata->ops;
else
host->ops = &sdhci_pltfm_ops;
if (pdata) {
host->quirks = pdata->quirks;
host->quirks2 = pdata->quirks2;
}
platform_set_drvdata(pdev, host);
return host;
err:
dev_err(&pdev->dev, "%s failed %d\n", __func__, ret);
return ERR_PTR(ret);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Richard Röjfors | 99 | 38.67% | 1 | 9.09% |
| Masahiro Yamada | 73 | 28.52% | 2 | 18.18% |
| Anton Vorontsov | 34 | 13.28% | 2 | 18.18% |
| Shawn Guo | 27 | 10.55% | 1 | 9.09% |
| Al Cooper | 8 | 3.12% | 1 | 9.09% |
| Wolfram Sang | 7 | 2.73% | 2 | 18.18% |
| Christian Daudt | 7 | 2.73% | 1 | 9.09% |
| Lars-Peter Clausen | 1 | 0.39% | 1 | 9.09% |
| Total | 256 | 100.00% | 11 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Richard Röjfors | 23 | 92.00% | 1 | 50.00% |
| Shawn Guo | 2 | 8.00% | 1 | 50.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL_GPL(sdhci_pltfm_free);
int sdhci_pltfm_register(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))
return PTR_ERR(host);
sdhci_get_of_property(pdev);
ret = sdhci_add_host(host);
if (ret)
sdhci_pltfm_free(pdev);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 68 | 88.31% | 2 | 33.33% |
| Christian Daudt | 5 | 6.49% | 1 | 16.67% |
| Mike Rapoport | 2 | 2.60% | 1 | 16.67% |
| Anton Vorontsov | 1 | 1.30% | 1 | 16.67% |
| Lars-Peter Clausen | 1 | 1.30% | 1 | 16.67% |
| Total | 77 | 100.00% | 6 | 100.00% |
EXPORT_SYMBOL_GPL(sdhci_pltfm_register);
int sdhci_pltfm_unregister(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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 43 | 63.24% | 1 | 25.00% |
| Kevin Hao | 17 | 25.00% | 1 | 25.00% |
| Anton Vorontsov | 5 | 7.35% | 1 | 25.00% |
| Olof Johansson | 3 | 4.41% | 1 | 25.00% |
| Total | 68 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL_GPL(sdhci_pltfm_unregister);
#ifdef CONFIG_PM_SLEEP
static int sdhci_pltfm_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
return sdhci_suspend_host(host);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Giuseppe Cavallaro | 24 | 88.89% | 1 | 33.33% |
| Manuel Lauss | 2 | 7.41% | 1 | 33.33% |
| Ulf Hansson | 1 | 3.70% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
static int sdhci_pltfm_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
return sdhci_resume_host(host);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Giuseppe Cavallaro | 24 | 88.89% | 1 | 33.33% |
| Manuel Lauss | 2 | 7.41% | 1 | 33.33% |
| Ulf Hansson | 1 | 3.70% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
#endif
const struct dev_pm_ops sdhci_pltfm_pmops = {
SET_SYSTEM_SLEEP_PM_OPS(sdhci_pltfm_suspend, sdhci_pltfm_resume)
};
EXPORT_SYMBOL_GPL(sdhci_pltfm_pmops);
static int __init sdhci_pltfm_drv_init(void)
{
pr_info("sdhci-pltfm: SDHCI platform and OF driver helper\n");
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
module_init(sdhci_pltfm_drv_init);
static void __exit sdhci_pltfm_drv_exit(void)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 8 | 100.00% | 1 | 100.00% |
| Total | 8 | 100.00% | 1 | 100.00% |
module_exit(sdhci_pltfm_drv_exit);
MODULE_DESCRIPTION("SDHCI platform and OF driver helper");
MODULE_AUTHOR("Intel Corporation");
MODULE_LICENSE("GPL v2");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 395 | 40.02% | 3 | 8.33% |
| Richard Röjfors | 131 | 13.27% | 1 | 2.78% |
| Masahiro Yamada | 73 | 7.40% | 2 | 5.56% |
| Giuseppe Cavallaro | 50 | 5.07% | 1 | 2.78% |
| Jerry Huang | 45 | 4.56% | 2 | 5.56% |
| Anton Vorontsov | 43 | 4.36% | 2 | 5.56% |
| Lars-Peter Clausen | 37 | 3.75% | 3 | 8.33% |
| Abhilash Kesavan | 35 | 3.55% | 1 | 2.78% |
| Arnd Bergmann | 30 | 3.04% | 1 | 2.78% |
| Russell King | 21 | 2.13% | 4 | 11.11% |
| Chris Ball | 17 | 1.72% | 1 | 2.78% |
| Daniel Drake | 17 | 1.72% | 1 | 2.78% |
| Kevin Hao | 17 | 1.72% | 1 | 2.78% |
| Ulf Hansson | 12 | 1.22% | 2 | 5.56% |
| Christian Daudt | 12 | 1.22% | 1 | 2.78% |
| Manuel Lauss | 12 | 1.22% | 1 | 2.78% |
| Sudeep Holla | 9 | 0.91% | 1 | 2.78% |
| Al Cooper | 8 | 0.81% | 1 | 2.78% |
| Wolfram Sang | 7 | 0.71% | 2 | 5.56% |
| Chunhe Lan | 7 | 0.71% | 1 | 2.78% |
| Paul Gortmaker | 3 | 0.30% | 1 | 2.78% |
| Olof Johansson | 3 | 0.30% | 1 | 2.78% |
| Mike Rapoport | 2 | 0.20% | 1 | 2.78% |
| Tobias Klauser | 1 | 0.10% | 1 | 2.78% |
| Total | 987 | 100.00% | 36 | 100.00% |
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