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drm/omap: dss: Create global list of all omap_dss_device instances

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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>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart
2018-02-28 23:49:24 +02:00
committed by Tomi Valkeinen
parent 7e7a0edecc
commit 6a7c5a2200
4 changed files with 46 additions and 9 deletions
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45
drivers/gpu/drm/omapdrm/dss/base.c
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@@ -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;