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ARM: imx: change the way flexcan devices are registered

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Group soc specific data in a global struct instead of repeating it for each
call to imxXX_add_flexcanX.  The structs holding the actual data are placed
in .init.constdata and so don't do much harm.  Compared to the previous
approach this reduces code size to call imx_add_flexcan.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2010-11-04 12:02:35 +01:00
parent e0a1961df8
commit fc40d01919
4 changed files with 56 additions and 21 deletions
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9
arch/arm/mach-mx25/devices-imx25.h
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@ -13,10 +13,11 @@ extern const struct imx_fec_data imx25_fec_data __initconst;
#define imx25_add_fec(pdata) \
imx_add_fec(&imx25_fec_data, pdata)
#define imx25_add_flexcan0(pdata) \
imx_add_flexcan(0, MX25_CAN1_BASE_ADDR, SZ_16K, MX25_INT_CAN1, pdata)
#define imx25_add_flexcan1(pdata) \
imx_add_flexcan(1, MX25_CAN2_BASE_ADDR, SZ_16K, MX25_INT_CAN2, pdata)
extern const struct imx_flexcan_data imx25_flexcan_data[] __initconst;
#define imx25_add_flexcan(id, pdata) \
imx_add_flexcan(&imx25_flexcan_data[id], pdata)
#define imx25_add_flexcan0(pdata) imx25_add_flexcan(0, pdata)
#define imx25_add_flexcan1(pdata) imx25_add_flexcan(1, pdata)
extern const struct imx_imx_i2c_data imx25_imx_i2c_data[] __initconst;
#define imx25_add_imx_i2c(id, pdata) \

9
arch/arm/mach-mx3/devices-imx35.h
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@ -13,10 +13,11 @@ extern const struct imx_fec_data imx35_fec_data __initconst;
#define imx35_add_fec(pdata) \
imx_add_fec(&imx35_fec_data, pdata)
#define imx35_add_flexcan0(pdata) \
imx_add_flexcan(0, MX35_CAN1_BASE_ADDR, SZ_16K, MX35_INT_CAN1, pdata)
#define imx35_add_flexcan1(pdata) \
imx_add_flexcan(1, MX35_CAN2_BASE_ADDR, SZ_16K, MX35_INT_CAN2, pdata)
extern const struct imx_flexcan_data imx35_flexcan_data[] __initconst;
#define imx35_add_flexcan(id, pdata) \
imx_add_flexcan(&imx35_flexcan_data[id], pdata)
#define imx35_add_flexcan0(pdata) imx35_add_flexcan(0, pdata)
#define imx35_add_flexcan1(pdata) imx35_add_flexcan(1, pdata)
extern const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst;
#define imx35_add_imx_i2c(id, pdata) \

48
arch/arm/plat-mxc/devices/platform-flexcan.c
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@ -5,26 +5,54 @@
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
*/
#include <mach/hardware.h>
#include <mach/devices-common.h>
struct platform_device *__init imx_add_flexcan(int id,
resource_size_t iobase, resource_size_t iosize,
resource_size_t irq,
#define imx_flexcan_data_entry_single(soc, _id, _hwid, _size) \
{ \
.id = _id, \
.iobase = soc ## _CAN ## _hwid ## _BASE_ADDR, \
.iosize = _size, \
.irq = soc ## _INT_CAN ## _hwid, \
}
#define imx_flexcan_data_entry(soc, _id, _hwid, _size) \
[_id] = imx_flexcan_data_entry_single(soc, _id, _hwid, _size)
#ifdef CONFIG_ARCH_MX25
const struct imx_flexcan_data imx25_flexcan_data[] __initconst = {
#define imx25_flexcan_data_entry(_id, _hwid) \
imx_flexcan_data_entry(MX25, _id, _hwid, SZ_16K)
imx25_flexcan_data_entry(0, 1),
imx25_flexcan_data_entry(1, 2),
};
#endif /* ifdef CONFIG_ARCH_MX25 */
#ifdef CONFIG_ARCH_MX35
const struct imx_flexcan_data imx35_flexcan_data[] __initconst = {
#define imx35_flexcan_data_entry(_id, _hwid) \
imx_flexcan_data_entry(MX35, _id, _hwid, SZ_16K)
imx35_flexcan_data_entry(0, 1),
imx35_flexcan_data_entry(1, 2),
};
#endif /* ifdef CONFIG_ARCH_MX35 */
struct platform_device *__init imx_add_flexcan(
const struct imx_flexcan_data *data,
const struct flexcan_platform_data *pdata)
{
struct resource res[] = {
{
.start = iobase,
.end = iobase + iosize - 1,
.start = data->iobase,
.end = data->iobase + data->iosize - 1,
.flags = IORESOURCE_MEM,
}, {
.start = irq,
.end = irq,
.start = data->irq,
.end = data->irq,
.flags = IORESOURCE_IRQ,
},
};
return imx_add_platform_device("flexcan", id, res, ARRAY_SIZE(res),
pdata, sizeof(*pdata));
return imx_add_platform_device("flexcan", data->id,
res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
}

11
arch/arm/plat-mxc/include/mach/devices-common.h
View File

@ -34,9 +34,14 @@ struct platform_device *__init imx_add_fec(
const struct fec_platform_data *pdata);
#include <linux/can/platform/flexcan.h>
struct platform_device *__init imx_add_flexcan(int id,
resource_size_t iobase, resource_size_t iosize,
resource_size_t irq,
struct imx_flexcan_data {
int id;
resource_size_t iobase;
resource_size_t iosize;
resource_size_t irq;
};
struct platform_device *__init imx_add_flexcan(
const struct imx_flexcan_data *data,
const struct flexcan_platform_data *pdata);
#include <linux/gpio_keys.h>