drivers/base/component.c

33  * Aggregate drivers first assemble a component match list of what they need
62 	struct component_match *match;
86 	struct component_match *match = m->match;
97 	for (i = 0; i < match->num; i++) {
98 		struct component *component = match->compare[i].component;
175 	struct component_match *match = adev->match;
180 	 * Scan the array of match functions and attach
183 	for (i = 0; i < match->num; i++) {
184 		struct component_match_array *mc = &match->compare[i];
189 		if (match->compare[i].component)
202 		match->compare[i].duplicate = !!c->adev;
203 		match->compare[i].component = c;
215 	for (i = 0; i < adev->match->num; i++)
216 		if (adev->match->compare[i].component == c)
217 			adev->match->compare[i].component = NULL;
293  * component_match_add_release(masterdev, &match, component_release_of,
321  * component_match_add(masterdev, &match, component_compare_dev, component_dev)
335  * component_match_add(masterdev, &match, component_compare_dev_name,
346 	struct component_match *match = res;
349 	for (i = 0; i < match->num; i++) {
350 		struct component_match_array *mc = &match->compare[i];
356 	kfree(match->compare);
359 static int component_match_realloc(struct component_match *match, size_t num)
363 	if (match->alloc == num)
370 	if (match->compare) {
371 		memcpy(new, match->compare, sizeof(*new) *
372 					    min(match->num, num));
373 		kfree(match->compare);
375 	match->compare = new;
376 	match->alloc = num;
388 	struct component_match *match = *matchptr;
390 	if (IS_ERR(match))
393 	if (!match) {
394 		match = devres_alloc(devm_component_match_release,
395 				     sizeof(*match), GFP_KERNEL);
396 		if (!match) {
401 		devres_add(parent, match);
403 		*matchptr = match;
406 	if (match->num == match->alloc) {
407 		size_t new_size = match->alloc + 16;
410 		ret = component_match_realloc(match, new_size);
417 	match->compare[match->num].compare = compare;
418 	match->compare[match->num].compare_typed = compare_typed;
419 	match->compare[match->num].release = release;
420 	match->compare[match->num].data = compare_data;
421 	match->compare[match->num].component = NULL;
422 	match->num++;
426  * component_match_add_release - add a component match entry with release callback
430  * @compare: compare function to match against all components
433  * Adds a new component match to the list stored in @matchptr, which the
435  * by @matchptr must be initialized to NULL before adding the first match. This
438  * The allocated match list in @matchptr is automatically released using devm
456  * component_match_add_typed - add a component match entry for a typed component
459  * @compare_typed: compare function to match against all typed components
462  * Adds a new component match to the list stored in @matchptr, which the
464  * by @matchptr must be initialized to NULL before adding the first match. This
467  * The allocated match list in @matchptr is automatically released using devm
483 	struct component_match *match = adev->match;
489 	if (match) {
490 		for (i = 0; i < match->num; i++) {
491 			struct component *c = match->compare[i].component;
504  * @match: component match list for the aggregate driver
506  * Registers a new aggregate driver consisting of the components added to @match
508  * @match are available, it will be assembled by calling
514 	struct component_match *match)
519 	/* Reallocate the match array for its true size */
520 	ret = component_match_realloc(match, match->num);
530 	adev->match = match;
607 	for (i = adev->match->num; i--; )
608 		if (!adev->match->compare[i].duplicate) {
609 			c = adev->match->compare[i].component;
690 	/* Bind components in match order */
691 	for (i = 0; i < adev->match->num; i++)
692 		if (!adev->match->compare[i].duplicate) {
693 			c = adev->match->compare[i].component;
701 			if (!adev->match->compare[i - 1].duplicate) {
702 				c = adev->match->compare[i - 1].component;
754  * components registered on the same device @dev. These components are match