[PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen

Hans de Goede
2014-11-12T22:08:42Z

Update simplefb to support the new preferred location for simplefb dt nodes
under /chosen.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/video/fbdev/simplefb.c | 33 ++++++++++++++++++++++++++++++++-
1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c
index cd96edd..be7d288 100644
--- a/drivers/video/fbdev/simplefb.c
+++ b/drivers/video/fbdev/simplefb.c
@@ -27,6 +27,7 @@
#include <linux/platform_data/simplefb.h>
#include <linux/platform_device.h>
#include <linux/clk-provider.h>
+#include <linux/of_platform.h>

static struct fb_fix_screeninfo simplefb_fix = {
.id = "simple",
@@ -385,7 +386,37 @@ static struct platform_driver simplefb_driver = {
.probe = simplefb_probe,
.remove = simplefb_remove,
};
-module_platform_driver(simplefb_driver);
+
+static int __init simplefb_init(void)
+{
+ int i, ret;
+ char name[16];
+ struct device_node *np;
+
+ ret = platform_driver_register(&simplefb_driver);
+ if (ret)
+ return ret;
+
+ for (i = 0; ; i++) {
+ snprintf(name, sizeof(name), "framebuffer%d", i);
+ np = of_find_node_by_name(of_chosen, name);
+ if (!np)
+ break;
+
+ /* of_platform_device_create will check status for us */
+ of_platform_device_create(np, NULL, NULL);
+ }
+
+ return 0;
+}
+
+static void __exit simplefb_exit(void)
+{
+ platform_driver_unregister(&simplefb_driver);
+}
+
+module_init(simplefb_init);
+module_exit(simplefb_exit);

MODULE_AUTHOR("Stephen Warren <swarren@wwwdotorg.org>");
MODULE_DESCRIPTION("Simple framebuffer driver");
--
2.1.0