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

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>

3 files changed, 25 insertions, 15 deletions

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 0ef934fec364..8917a0881206 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -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
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 083adbed0bfd..a8090907fe35 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -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;
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 421ff65562b0..86b7414b5835 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -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,