From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Goede Date: Thu, 13 Nov 2014 08:50:08 +0000 Subject: [PATCH v2 2/4] simplefb: Add support for enumerating simplefb dt nodes in /chosen Message-Id: <1415868610-13297-2-git-send-email-hdegoede@redhat.com> List-Id: References: <1415868610-13297-1-git-send-email-hdegoede@redhat.com> In-Reply-To: <1415868610-13297-1-git-send-email-hdegoede@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org Update simplefb to support the new preferred location for simplefb dt nodes under /chosen. Signed-off-by: Hans de Goede -- Changes in v2: -Make name array larger in case we ever encounter more then 10000 framebuffers --- 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..2705af8 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -27,6 +27,7 @@ #include #include #include +#include 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[32]; + 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 "); MODULE_DESCRIPTION("Simple framebuffer driver"); -- 2.1.0