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ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type

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Add flags parameter for omap_hwmod_count_resources() so users can tell which
type of resources they are interested when counting them in hwmod database.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Benoît Cousson <b-cousson@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Peter Ujfalusi 2012-11-21 16:15:17 -07:00 committed by Paul Walmsley
parent e6d3a8b0bd
commit dad4191d79
3 changed files with 25 additions and 15 deletions
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11
arch/arm/mach-omap2/omap_device.c
View File

@ -441,19 +441,21 @@ int omap_device_get_context_loss_count(struct platform_device *pdev)
/**
* omap_device_count_resources - count number of struct resource entries needed
* @od: struct omap_device *
* @flags: Type of resources to include when counting (IRQ/DMA/MEM)
*
* Count the number of struct resource entries needed for this
* omap_device @od. Used by omap_device_build_ss() to determine how
* much memory to allocate before calling
* omap_device_fill_resources(). Returns the count.
*/
static int omap_device_count_resources(struct omap_device *od)
static int omap_device_count_resources(struct omap_device *od,
unsigned long flags)
{
int c = 0;
int i;
for (i = 0; i < od->hwmods_cnt; i++)
c += omap_hwmod_count_resources(od->hwmods[i]);
c += omap_hwmod_count_resources(od->hwmods[i], flags);
pr_debug("omap_device: %s: counted %d total resources across %d hwmods\n",
od->pdev->name, c, od->hwmods_cnt);
@ -557,7 +559,10 @@ struct omap_device *omap_device_alloc(struct platform_device *pdev,
od->hwmods = hwmods;
od->pdev = pdev;
res_count = omap_device_count_resources(od);
/* Count all resources for the device */
res_count = omap_device_count_resources(od, IORESOURCE_IRQ |
IORESOURCE_DMA |
IORESOURCE_MEM);
/*
* DT Boot:
* OF framework will construct the resource structure (currently

27
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -3427,7 +3427,7 @@ int omap_hwmod_reset(struct omap_hwmod *oh)
/**
* omap_hwmod_count_resources - count number of struct resources needed by hwmod
* @oh: struct omap_hwmod *
* @res: pointer to the first element of an array of struct resource to fill
* @flags: Type of resources to include when counting (IRQ/DMA/MEM)
*
* Count the number of struct resource array elements necessary to
* contain omap_hwmod @oh resources. Intended to be called by code
@ -3440,20 +3440,25 @@ int omap_hwmod_reset(struct omap_hwmod *oh)
* resource IDs.
*
*/
int omap_hwmod_count_resources(struct omap_hwmod *oh)
int omap_hwmod_count_resources(struct omap_hwmod *oh, unsigned long flags)
{
struct omap_hwmod_ocp_if *os;
struct list_head *p;
int ret;
int i = 0;
int ret = 0;
ret = _count_mpu_irqs(oh) + _count_sdma_reqs(oh);
if (flags & IORESOURCE_IRQ)
ret += _count_mpu_irqs(oh);
p = oh->slave_ports.next;
if (flags & IORESOURCE_DMA)
ret += _count_sdma_reqs(oh);
while (i < oh->slaves_cnt) {
os = _fetch_next_ocp_if(&p, &i);
ret += _count_ocp_if_addr_spaces(os);
if (flags & IORESOURCE_MEM) {
int i = 0;
struct omap_hwmod_ocp_if *os;
struct list_head *p = oh->slave_ports.next;
while (i < oh->slaves_cnt) {
os = _fetch_next_ocp_if(&p, &i);
ret += _count_ocp_if_addr_spaces(os);
}
}
return ret;

2
arch/arm/mach-omap2/omap_hwmod.h
View File

@ -631,7 +631,7 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs);
u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs);
int omap_hwmod_softreset(struct omap_hwmod *oh);
int omap_hwmod_count_resources(struct omap_hwmod *oh);
int omap_hwmod_count_resources(struct omap_hwmod *oh, unsigned long flags);
int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res);
int omap_hwmod_fill_dma_resources(struct omap_hwmod *oh, struct resource *res);
int omap_hwmod_get_resource_byname(struct omap_hwmod *oh, unsigned int type,