The omap_dss_device instances are stored in two separate lists, depending on whether they are panels or outputs. Create a third list that stores all omap_dss_device instances to allow generic code to operate on all instances.
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/omapdrm/dss/base.c | 45 ++++++++++++++++++++++++++++------- drivers/gpu/drm/omapdrm/dss/display.c | 4 ++++ drivers/gpu/drm/omapdrm/dss/omapdss.h | 4 ++++ drivers/gpu/drm/omapdrm/dss/output.c | 2 ++ 4 files changed, 46 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/base.c b/drivers/gpu/drm/omapdrm/dss/base.c index 99e8cb8dc65b..18b72d7c717a 100644 --- a/drivers/gpu/drm/omapdrm/dss/base.c +++ b/drivers/gpu/drm/omapdrm/dss/base.c @@ -14,24 +14,17 @@ */
#include <linux/kernel.h> +#include <linux/list.h> #include <linux/module.h> +#include <linux/mutex.h> #include <linux/of.h> #include <linux/of_graph.h> -#include <linux/list.h>
#include "dss.h" #include "omapdss.h"
static struct dss_device *dss_device;
-static struct list_head omapdss_comp_list; - -struct omapdss_comp_node { - struct list_head list; - struct device_node *node; - bool dss_core_component; -}; - struct dss_device *omapdss_get_dss(void) { return dss_device; @@ -56,6 +49,40 @@ const struct dispc_ops *dispc_get_ops(struct dss_device *dss) } EXPORT_SYMBOL(dispc_get_ops);
+ +/* ----------------------------------------------------------------------------- + * OMAP DSS Devices Handling + */ + +static LIST_HEAD(omapdss_devices_list); +static DEFINE_MUTEX(omapdss_devices_lock); + +void omapdss_device_register(struct omap_dss_device *dssdev) +{ + mutex_lock(&omapdss_devices_lock); + list_add_tail(&dssdev->list, &omapdss_devices_list); + mutex_unlock(&omapdss_devices_lock); +} + +void omapdss_device_unregister(struct omap_dss_device *dssdev) +{ + mutex_lock(&omapdss_devices_lock); + list_del(&dssdev->list); + mutex_unlock(&omapdss_devices_lock); +} + +/* ----------------------------------------------------------------------------- + * Components Handling + */ + +static struct list_head omapdss_comp_list; + +struct omapdss_comp_node { + struct list_head list; + struct device_node *node; + bool dss_core_component; +}; + static bool omapdss_list_contains(const struct device_node *node) { struct omapdss_comp_node *comp; diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c index e07e3319d6e0..eacbbf45f737 100644 --- a/drivers/gpu/drm/omapdrm/dss/display.c +++ b/drivers/gpu/drm/omapdrm/dss/display.c @@ -56,6 +56,8 @@ int omapdss_register_display(struct omap_dss_device *dssdev) mutex_lock(&panel_list_mutex); list_add_tail(&dssdev->panel_list, &panel_list); mutex_unlock(&panel_list_mutex); + + omapdss_device_register(dssdev); return 0; } EXPORT_SYMBOL(omapdss_register_display); @@ -65,6 +67,8 @@ void omapdss_unregister_display(struct omap_dss_device *dssdev) mutex_lock(&panel_list_mutex); list_del(&dssdev->panel_list); mutex_unlock(&panel_list_mutex); + + omapdss_device_register(dssdev); } EXPORT_SYMBOL(omapdss_unregister_display);
diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h index 9f6c0385b7de..ddef6f39ca99 100644 --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h @@ -448,6 +448,7 @@ struct omap_dss_device {
struct module *owner;
+ struct list_head list; struct list_head panel_list;
unsigned int alias_id; @@ -558,6 +559,9 @@ static inline bool omapdss_is_initialized(void) int omapdss_register_display(struct omap_dss_device *dssdev); void omapdss_unregister_display(struct omap_dss_device *dssdev);
+void omapdss_device_register(struct omap_dss_device *dssdev); +void omapdss_device_unregister(struct omap_dss_device *dssdev); + struct omap_dss_device *omap_dss_get_device(struct omap_dss_device *dssdev); void omap_dss_put_device(struct omap_dss_device *dssdev); #define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL) diff --git a/drivers/gpu/drm/omapdrm/dss/output.c b/drivers/gpu/drm/omapdrm/dss/output.c index 0fcd13ea8824..1a2d24906edd 100644 --- a/drivers/gpu/drm/omapdrm/dss/output.c +++ b/drivers/gpu/drm/omapdrm/dss/output.c @@ -97,6 +97,7 @@ EXPORT_SYMBOL(omapdss_output_unset_device); int omapdss_register_output(struct omap_dss_device *out) { list_add_tail(&out->output_list, &output_list); + omapdss_device_register(out); return 0; } EXPORT_SYMBOL(omapdss_register_output); @@ -104,6 +105,7 @@ EXPORT_SYMBOL(omapdss_register_output); void omapdss_unregister_output(struct omap_dss_device *out) { list_del(&out->output_list); + omapdss_device_unregister(out); } EXPORT_SYMBOL(omapdss_unregister_output);