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authorDave Airlie <airlied@redhat.com>2023-03-14 12:17:27 +1000
committerDave Airlie <airlied@redhat.com>2023-03-14 12:18:54 +1000
commitfaf0d83e103e38e8bf7cc4e56da1a2edb9dfdf74 (patch)
tree5b0b838b0a7ac085d408e68207fe2748e2360357 /drivers/video/fbdev/core/fb_cmdline.c
parentLinux 6.3-rc2 (diff)
parentdrm/nouveau/hwmon: Use sysfs_emit in show function callsbacks (diff)
downloadlinux-faf0d83e103e38e8bf7cc4e56da1a2edb9dfdf74.tar.gz
linux-faf0d83e103e38e8bf7cc4e56da1a2edb9dfdf74.zip
Merge tag 'drm-misc-next-2023-03-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.4-rc1: Note: Only changes since pull request from 2023-02-23 are included here. UAPI Changes: - Convert rockchip bindings to YAML. - Constify kobj_type structure in dma-buf. - FBDEV cmdline parser fixes, and other small fbdev fixes for mode parsing. Cross-subsystem Changes: - Add Neil Armstrong as linaro maintainer. - Actually signal the private stub dma-fence. Core Changes: - Add function for adding syncobj dep to sched_job and use it in panfrost, v3d. - Improve DisplayID 2.0 topology parsing and EDID parsing in general. - Add a gem eviction function and callback for generic GEM shrinker purposes. - Prepare to convert shmem helper to use the GEM reservation lock instead of own locking. (Actual commit itself got reverted for now) - Move the suballocator from radeon and amdgpu drivers to core in preparation for Xe. - Assorted small fixes and documentation. - Fixes to HPD polling. - Assorted small fixes in simpledrm, bridge, accel, shmem-helper, and the selftest of format-helper. - Remove dummy resource when ttm bo is created, and during pipelined gutting. Fix all drivers to accept a NULL ttm_bo->resource. - Handle pinned BO moving prevention in ttm core. - Set drm panel-bridge orientation before connector is registered. - Remove dumb_destroy callback. - Add documentation to GEM_CLOSE, PRIME_HANDLE_TO_FD, PRIME_FD_TO_HANDLE, GETFB2 ioctl's. - Add atomic enable_plane callback, use it in ast, mgag200, tidss. Driver Changes: - Use drm_gem_objects_lookup in vc4. - Assorted small fixes to virtio, ast, bridge/tc358762, meson, nouveau. - Allow virtio KMS to be disabled and compiled out. - Add Radxa 8/10HD, Samsung AMS495QA01 panels. - Fix ivpu compiler errors. - Assorted fixes to drm/panel, malidp, rockchip, ivpu, amdgpu, vgem, nouveau, vc4. - Assorted cleanups, simplifications and fixes to vmwgfx. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ac1f5186-54bb-02f4-ac56-907f5b76f3de@linux.intel.com
Diffstat (limited to 'drivers/video/fbdev/core/fb_cmdline.c')
-rw-r--r--drivers/video/fbdev/core/fb_cmdline.c94
1 files changed, 24 insertions, 70 deletions
diff --git a/drivers/video/fbdev/core/fb_cmdline.c b/drivers/video/fbdev/core/fb_cmdline.c
index 3b5bd666b952..4d1634c492ec 100644
--- a/drivers/video/fbdev/core/fb_cmdline.c
+++ b/drivers/video/fbdev/core/fb_cmdline.c
@@ -12,16 +12,14 @@
* for more details.
*
* Authors:
- * Vetter <danie.vetter@ffwll.ch>
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
*/
-#include <linux/init.h>
-#include <linux/fb.h>
-static char *video_options[FB_MAX] __read_mostly;
-static int ofonly __read_mostly;
+#include <linux/export.h>
+#include <linux/fb.h>
+#include <linux/string.h>
-const char *fb_mode_option;
-EXPORT_SYMBOL_GPL(fb_mode_option);
+#include <video/cmdline.h>
/**
* fb_get_options - get kernel boot parameters
@@ -30,78 +28,34 @@ EXPORT_SYMBOL_GPL(fb_mode_option);
* (video=<name>:<options>)
* @option: the option will be stored here
*
+ * The caller owns the string returned in @option and is
+ * responsible for releasing the memory.
+ *
* NOTE: Needed to maintain backwards compatibility
*/
int fb_get_options(const char *name, char **option)
{
- char *opt, *options = NULL;
- int retval = 0;
- int name_len = strlen(name), i;
-
- if (name_len && ofonly && strncmp(name, "offb", 4))
- retval = 1;
+ const char *options = NULL;
+ bool is_of = false;
+ bool enabled;
- if (name_len && !retval) {
- for (i = 0; i < FB_MAX; i++) {
- if (video_options[i] == NULL)
- continue;
- if (!video_options[i][0])
- continue;
- opt = video_options[i];
- if (!strncmp(name, opt, name_len) &&
- opt[name_len] == ':')
- options = opt + name_len + 1;
- }
- }
- /* No match, pass global option */
- if (!options && option && fb_mode_option)
- options = kstrdup(fb_mode_option, GFP_KERNEL);
- if (options && !strncmp(options, "off", 3))
- retval = 1;
-
- if (option)
- *option = options;
-
- return retval;
-}
-EXPORT_SYMBOL(fb_get_options);
+ if (name)
+ is_of = strncmp(name, "offb", 4);
-/**
- * video_setup - process command line options
- * @options: string of options
- *
- * Process command line options for frame buffer subsystem.
- *
- * NOTE: This function is a __setup and __init function.
- * It only stores the options. Drivers have to call
- * fb_get_options() as necessary.
- */
-static int __init video_setup(char *options)
-{
- if (!options || !*options)
- goto out;
+ enabled = __video_get_options(name, &options, is_of);
- if (!strncmp(options, "ofonly", 6)) {
- ofonly = 1;
- goto out;
+ if (options) {
+ if (!strncmp(options, "off", 3))
+ enabled = false;
}
- if (strchr(options, ':')) {
- /* named */
- int i;
-
- for (i = 0; i < FB_MAX; i++) {
- if (video_options[i] == NULL) {
- video_options[i] = options;
- break;
- }
- }
- } else {
- /* global */
- fb_mode_option = options;
+ if (option) {
+ if (options)
+ *option = kstrdup(options, GFP_KERNEL);
+ else
+ *option = NULL;
}
-out:
- return 1;
+ return enabled ? 0 : 1; // 0 on success, 1 otherwise
}
-__setup("video=", video_setup);
+EXPORT_SYMBOL(fb_get_options);