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ARM: imx: change the way spi-imx 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_spi_imxX.  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_spi_imx.

Acked-by: Jason Wang <jason77.wang@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König
2010-09-09 21:02:02 +02:00
parent a8a05b8552
commit 35bab0589b
7 changed files with 103 additions and 37 deletions
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arch/arm/plat-mxc/devices/platform-spi_imx.c
+67 -9
View File
@@ -6,25 +6,83 @@
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation.
*/
#include <asm/sizes.h>
#include <mach/hardware.h>
#include <mach/devices-common.h>
struct platform_device *__init imx_add_spi_imx(int id,
resource_size_t iobase, resource_size_t iosize, int irq,
#define imx_spi_imx_data_entry_single(soc, type, _devid, _id, hwid, _size) \
{ \
.id = _id, \
.iobase = soc ## _ ## type ## hwid ## _BASE_ADDR, \
.iosize = _size, \
.irq = soc ## _INT_ ## type ## hwid, \
}
#define imx_spi_imx_data_entry(soc, type, devid, id, hwid, size) \
[id] = imx_spi_imx_data_entry_single(soc, type, devid, id, hwid, size)
#ifdef CONFIG_SOC_IMX21
const struct imx_spi_imx_data imx21_cspi_data[] __initconst = {
#define imx21_cspi_data_entry(_id, _hwid) \
imx_spi_imx_data_entry(MX21, CSPI, "imx21-cspi", _id, _hwid, SZ_4K)
imx21_cspi_data_entry(0, 1),
imx21_cspi_data_entry(1, 2),
#endif
#ifdef CONFIG_ARCH_MX25
const struct imx_spi_imx_data imx25_cspi_data[] __initconst = {
#define imx25_cspi_data_entry(_id, _hwid) \
imx_spi_imx_data_entry(MX25, CSPI, "imx25-cspi", _id, _hwid, SZ_16K)
imx25_cspi_data_entry(0, 1),
imx25_cspi_data_entry(1, 2),
imx25_cspi_data_entry(2, 3),
};
#endif /* ifdef CONFIG_ARCH_MX25 */
#ifdef CONFIG_SOC_IMX27
const struct imx_spi_imx_data imx27_cspi_data[] __initconst = {
#define imx27_cspi_data_entry(_id, _hwid) \
imx_spi_imx_data_entry(MX27, CSPI, "imx27-cspi", _id, _hwid, SZ_4K)
imx27_cspi_data_entry(0, 1),
imx27_cspi_data_entry(1, 2),
imx27_cspi_data_entry(2, 3),
};
#endif /* ifdef CONFIG_SOC_IMX27 */
#ifdef CONFIG_ARCH_MX31
const struct imx_spi_imx_data imx31_cspi_data[] __initconst = {
#define imx31_cspi_data_entry(_id, _hwid) \
imx_spi_imx_data_entry(MX31, CSPI, "imx31-cspi", _id, _hwid, SZ_4K)
imx31_cspi_data_entry(0, 1),
imx31_cspi_data_entry(1, 2),
imx31_cspi_data_entry(2, 3),
};
#endif /* ifdef CONFIG_ARCH_MX31 */
#ifdef CONFIG_ARCH_MX35
const struct imx_spi_imx_data imx35_cspi_data[] __initconst = {
#define imx35_cspi_data_entry(_id, _hwid) \
imx_spi_imx_data_entry(MX35, CSPI, "imx35-cspi", _id, _hwid, SZ_4K)
imx35_cspi_data_entry(0, 1),
imx35_cspi_data_entry(1, 2),
};
#endif /* ifdef CONFIG_ARCH_MX35 */
struct platform_device *__init imx_add_spi_imx(
const struct imx_spi_imx_data *data,
const struct spi_imx_master *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("spi_imx", id, res, ARRAY_SIZE(res),
pdata, sizeof(*pdata));
return imx_add_platform_device("spi_imx", data->id,
res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
}