From 67b23ca1b6a870100e258376cad250f10997ecf7 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Fri, 15 Mar 2013 16:33:29 +0200 Subject: [PATCH] OMAPDSS: use the panel list in omap_dss_get_next_device omap_dss_get_next_device() uses the dss bus to iterate over the displays. This patch changes omap_dss_get_next_device() to use the new panel list instead. Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/display.c | 54 ++++++++++++++++++++++++++++----------- 1 file changed, 39 insertions(+), 15 deletions(-) diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c index 1c175a4..ba83ec3 100644 --- a/drivers/video/omap2/dss/display.c +++ b/drivers/video/omap2/dss/display.c @@ -191,27 +191,51 @@ void omap_dss_put_device(struct omap_dss_device *dssdev) } EXPORT_SYMBOL(omap_dss_put_device); -/* ref count of the found device is incremented. ref count - * of from-device is decremented. */ +/* + * ref count of the found device is incremented. + * ref count of from-device is decremented. + */ struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from) { - struct device *dev; - struct device *dev_start = NULL; - struct omap_dss_device *dssdev = NULL; + struct list_head *l; + struct omap_dss_device *dssdev; + + mutex_lock(&panel_list_mutex); - int match(struct device *dev, void *data) - { - return 1; + if (list_empty(&panel_list)) { + dssdev = NULL; + goto out; } - if (from) - dev_start = &from->dev; - dev = bus_find_device(dss_get_bus(), dev_start, NULL, match); - if (dev) - dssdev = to_dss_device(dev); - if (from) - put_device(&from->dev); + if (from == NULL) { + dssdev = list_first_entry(&panel_list, struct omap_dss_device, + panel_list); + omap_dss_get_device(dssdev); + goto out; + } + + omap_dss_put_device(from); + + list_for_each(l, &panel_list) { + dssdev = list_entry(l, struct omap_dss_device, panel_list); + if (dssdev == from) { + if (list_is_last(l, &panel_list)) { + dssdev = NULL; + goto out; + } + + dssdev = list_entry(l->next, struct omap_dss_device, + panel_list); + omap_dss_get_device(dssdev); + goto out; + } + } + WARN(1, "'from' dssdev not found\n"); + + dssdev = NULL; +out: + mutex_unlock(&panel_list_mutex); return dssdev; } EXPORT_SYMBOL(omap_dss_get_next_device); -- 2.7.4