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ARM: OMAP2+: HDQ1W: use omap_device

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Convert the old-style device registration code for HDQ1W to use
omap_device.  This will allow the driver to be converted to use PM
runtime and to take advantage of the OMAP IP block management
infrastructure (hwmod, PM, etc.).

A side benefit of this conversion is that it also makes the HDQ device
available on OMAP2420.  The previous code only enabled it on 2430 and
3430.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: NeilBrown <neilb@suse.de>
Tested-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Paul Walmsley 2012-06-21 21:40:38 -06:00
parent 2acd089471
commit 96b1b29d37
2 changed files with 26 additions and 38 deletions
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38
arch/arm/mach-omap2/devices.c
View File

@ -672,43 +672,6 @@ void __init omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
#endif
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
#define OMAP_HDQ_BASE 0x480B2000
static struct resource omap_hdq_resources[] = {
{
.start = OMAP_HDQ_BASE,
.end = OMAP_HDQ_BASE + 0x1C,
.flags = IORESOURCE_MEM,
},
{
.start = INT_24XX_HDQ_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device omap_hdq_dev = {
.name = "omap_hdq",
.id = 0,
.dev = {
.platform_data = NULL,
},
.num_resources = ARRAY_SIZE(omap_hdq_resources),
.resource = omap_hdq_resources,
};
static inline void omap_hdq_init(void)
{
if (cpu_is_omap2420())
return;
platform_device_register(&omap_hdq_dev);
}
#else
static inline void omap_hdq_init(void) {}
#endif
/*---------------------------------------------------------------------------*/
#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
@ -753,7 +716,6 @@ static int __init omap2_init_devices(void)
omap_init_mcspi();
}
omap_init_pmu();
omap_hdq_init();
omap_init_sti();
omap_init_sham();
omap_init_aes();

26
arch/arm/mach-omap2/hdq1w.c
View File

@ -22,7 +22,13 @@
* 02110-1301 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <plat/omap_hwmod.h>
#include <plat/omap_device.h>
#include <plat/hdq1w.h>
#include "common.h"
@ -70,3 +76,23 @@ int omap_hdq1w_reset(struct omap_hwmod *oh)
return 0;
}
static int __init omap_init_hdq(void)
{
int id = -1;
struct platform_device *pdev;
struct omap_hwmod *oh;
char *oh_name = "hdq1w";
char *devname = "omap_hdq";
oh = omap_hwmod_lookup(oh_name);
if (!oh)
return 0;
pdev = omap_device_build(devname, id, oh, NULL, 0, NULL, 0, 0);
WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
devname, oh->name);
return 0;
}
arch_initcall(omap_init_hdq);