[PATCH 9/9] OMAP: omap_device: decouple platform_device from omap_device
Kevin Hilman
khilman at ti.com
Fri Aug 5 20:19:25 EDT 2011
Rather than embedding a struct platform_device inside a struct
omap_device, decouple them, leaving only a pointer to the
platform_device inside the omap_device.
Use the arch-specific data field of the platform_device (pdev_archdata)
to add an omap_device pointer after the platform_device has been created.
Signed-off-by: Kevin Hilman <khilman at ti.com>
---
arch/arm/mach-omap2/opp.c | 2 +-
arch/arm/plat-omap/include/plat/omap_device.h | 7 +-
arch/arm/plat-omap/omap_device.c | 100 +++++++++++++------------
3 files changed, 58 insertions(+), 51 deletions(-)
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index ab8b35b..9262a6b 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -69,7 +69,7 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
opp_def->hwmod_name, i);
return -EINVAL;
}
- dev = &oh->od->pdev.dev;
+ dev = &oh->od->pdev->dev;
r = opp_add(dev, opp_def->freq, opp_def->u_volt);
if (r) {
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index 4f98770..d4d9b96 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -68,7 +68,7 @@ extern struct device omap_device_parent;
*
*/
struct omap_device {
- struct platform_device pdev;
+ struct platform_device *pdev;
struct omap_hwmod **hwmods;
struct omap_device_pm_latency *pm_lats;
u32 dev_wakeup_lat;
@@ -146,7 +146,10 @@ struct omap_device_pm_latency {
#define OMAP_DEVICE_LATENCY_AUTO_ADJUST BIT(1)
/* Get omap_device pointer from platform_device pointer */
-#define to_omap_device(x) container_of((x), struct omap_device, pdev)
+static inline struct omap_device *to_omap_device(struct platform_device *pdev)
+{
+ return pdev ? pdev->archdata.od : NULL;
+}
static inline
void omap_device_disable_idle_on_suspend(struct platform_device *pdev)
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 351df31..d8f2299 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -117,7 +117,7 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
{
struct timespec a, b, c;
- dev_dbg(&od->pdev.dev, "omap_device: activating\n");
+ dev_dbg(&od->pdev->dev, "omap_device: activating\n");
while (od->pm_lat_level > 0) {
struct omap_device_pm_latency *odpl;
@@ -141,7 +141,7 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
c = timespec_sub(b, a);
act_lat = timespec_to_ns(&c);
- dev_dbg(&od->pdev.dev,
+ dev_dbg(&od->pdev->dev,
"omap_device: pm_lat %d: activate: elapsed time "
"%llu nsec\n", od->pm_lat_level, act_lat);
@@ -149,12 +149,12 @@ static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
odpl->activate_lat_worst = act_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->activate_lat = act_lat;
- dev_dbg(&od->pdev.dev,
+ dev_dbg(&od->pdev->dev,
"new worst case activate latency "
"%d: %llu\n",
od->pm_lat_level, act_lat);
} else
- dev_warn(&od->pdev.dev,
+ dev_warn(&od->pdev->dev,
"activate latency %d "
"higher than exptected. (%llu > %d)\n",
od->pm_lat_level, act_lat,
@@ -185,7 +185,7 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
{
struct timespec a, b, c;
- dev_dbg(&od->pdev.dev, "omap_device: deactivating\n");
+ dev_dbg(&od->pdev->dev, "omap_device: deactivating\n");
while (od->pm_lat_level < od->pm_lats_cnt) {
struct omap_device_pm_latency *odpl;
@@ -208,7 +208,7 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
c = timespec_sub(b, a);
deact_lat = timespec_to_ns(&c);
- dev_dbg(&od->pdev.dev,
+ dev_dbg(&od->pdev->dev,
"omap_device: pm_lat %d: deactivate: elapsed time "
"%llu nsec\n", od->pm_lat_level, deact_lat);
@@ -216,12 +216,12 @@ static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
odpl->deactivate_lat_worst = deact_lat;
if (odpl->flags & OMAP_DEVICE_LATENCY_AUTO_ADJUST) {
odpl->deactivate_lat = deact_lat;
- dev_dbg(&od->pdev.dev,
+ dev_dbg(&od->pdev->dev,
"new worst case deactivate latency "
"%d: %llu\n",
od->pm_lat_level, deact_lat);
} else
- dev_warn(&od->pdev.dev,
+ dev_warn(&od->pdev->dev,
"deactivate latency %d "
"higher than exptected. (%llu > %d)\n",
od->pm_lat_level, deact_lat,
@@ -245,11 +245,11 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
if (!clk_alias || !clk_name)
return;
- dev_dbg(&od->pdev.dev, "Creating %s -> %s\n", clk_alias, clk_name);
+ dev_dbg(&od->pdev->dev, "Creating %s -> %s\n", clk_alias, clk_name);
- r = clk_get_sys(dev_name(&od->pdev.dev), clk_alias);
+ r = clk_get_sys(dev_name(&od->pdev->dev), clk_alias);
if (!IS_ERR(r)) {
- dev_warn(&od->pdev.dev,
+ dev_warn(&od->pdev->dev,
"alias %s already exists\n", clk_alias);
clk_put(r);
return;
@@ -257,14 +257,14 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
r = omap_clk_get_by_name(clk_name);
if (IS_ERR(r)) {
- dev_err(&od->pdev.dev,
+ dev_err(&od->pdev->dev,
"omap_clk_get_by_name for %s failed\n", clk_name);
return;
}
- l = clkdev_alloc(r, clk_alias, dev_name(&od->pdev.dev));
+ l = clkdev_alloc(r, clk_alias, dev_name(&od->pdev->dev));
if (!l) {
- dev_err(&od->pdev.dev,
+ dev_err(&od->pdev->dev,
"clkdev_alloc for %s failed\n", clk_alias);
return;
}
@@ -351,7 +351,7 @@ static int omap_device_count_resources(struct omap_device *od)
c += omap_hwmod_count_resources(od->hwmods[i]);
pr_debug("omap_device: %s: counted %d total resources across %d "
- "hwmods\n", od->pdev.name, c, od->hwmods_cnt);
+ "hwmods\n", od->pdev->name, c, od->hwmods_cnt);
return c;
}
@@ -445,8 +445,8 @@ struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
int pm_lats_cnt, int is_early_device)
{
int ret = -ENOMEM;
+ struct platform_device *pdev;
struct omap_device *od;
- char *pdev_name2;
struct resource *res = NULL;
int i, res_count;
struct omap_hwmod **hwmods;
@@ -457,72 +457,76 @@ struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
if (!pdata && pdata_len > 0)
return ERR_PTR(-EINVAL);
+ pdev = platform_device_alloc(pdev_name, pdev_id);
+ if (!pdev) {
+ ret = -ENOMEM;
+ goto odbs_exit;
+ }
+
pr_debug("omap_device: %s: building with %d hwmods\n", pdev_name,
oh_cnt);
od = kzalloc(sizeof(struct omap_device), GFP_KERNEL);
- if (!od)
- return ERR_PTR(-ENOMEM);
-
+ if (!od) {
+ ret = -ENOMEM;
+ goto odbs_exit1;
+ }
od->hwmods_cnt = oh_cnt;
hwmods = kzalloc(sizeof(struct omap_hwmod *) * oh_cnt,
GFP_KERNEL);
if (!hwmods)
- goto odbs_exit1;
+ goto odbs_exit2;
memcpy(hwmods, ohs, sizeof(struct omap_hwmod *) * oh_cnt);
od->hwmods = hwmods;
-
- pdev_name2 = kzalloc(strlen(pdev_name) + 1, GFP_KERNEL);
- if (!pdev_name2)
- goto odbs_exit2;
- strcpy(pdev_name2, pdev_name);
-
- od->pdev.name = pdev_name2;
- od->pdev.id = pdev_id;
+ od->pdev = pdev;
res_count = omap_device_count_resources(od);
if (res_count > 0) {
res = kzalloc(sizeof(struct resource) * res_count, GFP_KERNEL);
if (!res)
goto odbs_exit3;
- }
- omap_device_fill_resources(od, res);
- od->pdev.num_resources = res_count;
- od->pdev.resource = res;
+ omap_device_fill_resources(od, res);
- ret = platform_device_add_data(&od->pdev, pdata, pdata_len);
+ ret = platform_device_add_resources(pdev, res, res_count);
+ kfree(res);
+
+ if (ret)
+ goto odbs_exit3;
+ }
+
+ ret = platform_device_add_data(pdev, pdata, pdata_len);
if (ret)
- goto odbs_exit4;
+ goto odbs_exit3;
- od->pm_lats = pm_lats;
- od->pm_lats_cnt = pm_lats_cnt;
+ pdev->archdata.od = od;
if (is_early_device)
- ret = omap_early_device_register(&od->pdev);
+ ret = omap_early_device_register(pdev);
else
- ret = omap_device_register(&od->pdev);
+ ret = omap_device_register(pdev);
+ if (ret)
+ goto odbs_exit3;
+
+ od->pm_lats = pm_lats;
+ od->pm_lats_cnt = pm_lats_cnt;
for (i = 0; i < oh_cnt; i++) {
hwmods[i]->od = od;
_add_hwmod_clocks_clkdev(od, hwmods[i]);
}
- if (ret)
- goto odbs_exit4;
-
- return &od->pdev;
+ return pdev;
-odbs_exit4:
- kfree(res);
odbs_exit3:
- kfree(pdev_name2);
-odbs_exit2:
kfree(hwmods);
-odbs_exit1:
+odbs_exit2:
kfree(od);
+odbs_exit1:
+ platform_device_put(pdev);
+odbs_exit:
pr_err("omap_device: %s: build failed (%d)\n", pdev_name, ret);
@@ -640,7 +644,7 @@ static int omap_device_register(struct platform_device *pdev)
pdev->dev.parent = &omap_device_parent;
pdev->dev.pm_domain = &omap_device_pm_domain;
- return platform_device_register(pdev);
+ return platform_device_add(pdev);
}
--
1.7.6
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