OMAP: omap_device: Fix to support multiple hwmods for a single device

Currently there is a bug in the existing omap_device core code when
extracting the hwmod structures passed to omap_device_build_ss(). This bug
gets exposed only when passing multiple hwmod structures to
omap_device_build_ss() resulting in incorrect extraction from second hwmod
structure.

This fix uses the pointer to pointer to omap_hwmod structure (array of
pointers to omap_hwmod structure) passed to omap_device_build_ss() to
correctly extract the appropriate omap_hwmod structure.

This patch has been created and tested on lo/master and mainline.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Charulatha V <charu@ti.com>
Cc: Shubhrajyoti D <shubhrajyoti@ti.com>
This commit is contained in:
Kishon Vijay Abraham I 2010-09-24 10:23:18 -06:00 committed by Paul Walmsley
parent 74ff3a68ed
commit f39f4898ac

@ -296,12 +296,11 @@ static void _add_optional_clock_alias(struct omap_device *od,
*/
int omap_device_count_resources(struct omap_device *od)
{
struct omap_hwmod *oh;
int c = 0;
int i;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
c += omap_hwmod_count_resources(oh);
for (i = 0; i < od->hwmods_cnt; i++)
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);
@ -328,12 +327,11 @@ int omap_device_count_resources(struct omap_device *od)
*/
int omap_device_fill_resources(struct omap_device *od, struct resource *res)
{
struct omap_hwmod *oh;
int c = 0;
int i, r;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++) {
r = omap_hwmod_fill_resources(oh, res);
for (i = 0; i < od->hwmods_cnt; i++) {
r = omap_hwmod_fill_resources(od->hwmods[i], res);
res += r;
c += r;
}
@ -607,7 +605,6 @@ int omap_device_shutdown(struct platform_device *pdev)
{
int ret, i;
struct omap_device *od;
struct omap_hwmod *oh;
od = _find_by_pdev(pdev);
@ -620,8 +617,8 @@ int omap_device_shutdown(struct platform_device *pdev)
ret = _omap_device_deactivate(od, IGNORE_WAKEUP_LAT);
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
omap_hwmod_shutdown(oh);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_shutdown(od->hwmods[i]);
od->_state = OMAP_DEVICE_STATE_SHUTDOWN;
@ -733,11 +730,10 @@ void __iomem *omap_device_get_rt_va(struct omap_device *od)
*/
int omap_device_enable_hwmods(struct omap_device *od)
{
struct omap_hwmod *oh;
int i;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
omap_hwmod_enable(oh);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_enable(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
@ -751,11 +747,10 @@ int omap_device_enable_hwmods(struct omap_device *od)
*/
int omap_device_idle_hwmods(struct omap_device *od)
{
struct omap_hwmod *oh;
int i;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
omap_hwmod_idle(oh);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_idle(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
@ -770,11 +765,10 @@ int omap_device_idle_hwmods(struct omap_device *od)
*/
int omap_device_disable_clocks(struct omap_device *od)
{
struct omap_hwmod *oh;
int i;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
omap_hwmod_disable_clocks(oh);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_disable_clocks(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;
@ -789,11 +783,10 @@ int omap_device_disable_clocks(struct omap_device *od)
*/
int omap_device_enable_clocks(struct omap_device *od)
{
struct omap_hwmod *oh;
int i;
for (i = 0, oh = *od->hwmods; i < od->hwmods_cnt; i++, oh++)
omap_hwmod_enable_clocks(oh);
for (i = 0; i < od->hwmods_cnt; i++)
omap_hwmod_enable_clocks(od->hwmods[i]);
/* XXX pass along return value here? */
return 0;