[PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen
From: Hans de Goede <hidden>
Date: 2014-11-12 22:08:42
Also in:
linux-devicetree, linux-fbdev
Subsystem:
framebuffer layer, simplefb fb driver, the rest · Maintainers:
Helge Deller, Hans de Goede, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2014-11-13 · Re: [PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen · Grant Likely <hidden>
- 2014-11-13 · Re: [PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen · Julian Calaby <hidden>
- 2014-11-13 · Re: [PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen · Hans de Goede <hidden>
- 2014-11-13 · Re: [PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen · Geert Uytterhoeven <hidden>
- 2014-11-13 · Re: [PATCH 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen · Hans de Goede <hidden>
Update simplefb to support the new preferred location for simplefb dt nodes under /chosen. Signed-off-by: Hans de Goede <redacted> --- 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");
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2.1.0