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r: 226150
b: refs/heads/master
c: dc38ad4
h: refs/heads/master
v: v3
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Shawn Guo authored and Uwe Kleine-König committed Dec 20, 2010
1 parent 3a0a560 commit 6968faf
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Showing 6 changed files with 190 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: faff3dc947738ce7c905a4a2936a089d3fa9ddda
refs/heads/master: dc38ad4052a50b9e73fdcc970ecdd4f69ee9d97a
16 changes: 16 additions & 0 deletions trunk/arch/arm/mach-mxs/devices-mx23.h
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/*
* Copyright (C) 2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*/
#include <mach/mx23.h>
#include <mach/devices-common.h>

extern const struct mxs_duart_data mx23_duart_data __initconst;
#define mx23_add_duart() \
mxs_add_duart(&mx23_duart_data)
16 changes: 16 additions & 0 deletions trunk/arch/arm/mach-mxs/devices-mx28.h
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/*
* Copyright (C) 2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*/
#include <mach/mx28.h>
#include <mach/devices-common.h>

extern const struct mxs_duart_data mx28_duart_data __initconst;
#define mx28_add_duart() \
mxs_add_duart(&mx28_duart_data)
75 changes: 75 additions & 0 deletions trunk/arch/arm/mach-mxs/devices.c
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/*
* Copyright 2008 Sascha Hauer, kernel@pengutronix.de
*
* 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.
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <mach/common.h>

struct platform_device *__init mxs_add_platform_device_dmamask(
const char *name, int id,
const struct resource *res, unsigned int num_resources,
const void *data, size_t size_data, u64 dmamask)
{
int ret = -ENOMEM;
struct platform_device *pdev;

pdev = platform_device_alloc(name, id);
if (!pdev)
goto err;

if (dmamask) {
/*
* This memory isn't freed when the device is put,
* I don't have a nice idea for that though. Conceptually
* dma_mask in struct device should not be a pointer.
* See http://thread.gmane.org/gmane.linux.kernel.pci/9081
*/
pdev->dev.dma_mask =
kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
if (!pdev->dev.dma_mask)
/* ret is still -ENOMEM; */
goto err;

*pdev->dev.dma_mask = dmamask;
pdev->dev.coherent_dma_mask = dmamask;
}

if (res) {
ret = platform_device_add_resources(pdev, res, num_resources);
if (ret)
goto err;
}

if (data) {
ret = platform_device_add_data(pdev, data, size_data);
if (ret)
goto err;
}

ret = platform_device_add(pdev);
if (ret) {
err:
platform_device_put(pdev);
return ERR_PTR(ret);
}

return pdev;
}
48 changes: 48 additions & 0 deletions trunk/arch/arm/mach-mxs/devices/platform-duart.c
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/*
* Copyright (C) 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*/
#include <mach/mx23.h>
#include <mach/mx28.h>
#include <mach/devices-common.h>

#define mxs_duart_data_entry(soc) \
{ \
.iobase = soc ## _DUART_BASE_ADDR, \
.irq = soc ## _INT_DUART, \
}

#ifdef CONFIG_SOC_IMX23
const struct mxs_duart_data mx23_duart_data __initconst =
mxs_duart_data_entry(MX23);
#endif

#ifdef CONFIG_SOC_IMX28
const struct mxs_duart_data mx28_duart_data __initconst =
mxs_duart_data_entry(MX28);
#endif

struct platform_device *__init mxs_add_duart(
const struct mxs_duart_data *data)
{
struct resource res[] = {
{
.start = data->iobase,
.end = data->iobase + SZ_8K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = data->irq,
.end = data->irq,
.flags = IORESOURCE_IRQ,
},
};

return mxs_add_platform_device("mxs-duart", 0, res, ARRAY_SIZE(res),
NULL, 0);
}
34 changes: 34 additions & 0 deletions trunk/arch/arm/mach-mxs/include/mach/devices-common.h
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/*
* Copyright (C) 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/init.h>

struct platform_device *mxs_add_platform_device_dmamask(
const char *name, int id,
const struct resource *res, unsigned int num_resources,
const void *data, size_t size_data, u64 dmamask);

static inline struct platform_device *mxs_add_platform_device(
const char *name, int id,
const struct resource *res, unsigned int num_resources,
const void *data, size_t size_data)
{
return mxs_add_platform_device_dmamask(
name, id, res, num_resources, data, size_data, 0);
}

/* duart */
struct mxs_duart_data {
resource_size_t iobase;
resource_size_t iosize;
resource_size_t irq;
};
struct platform_device *__init mxs_add_duart(
const struct mxs_duart_data *data);

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