Merge tag 'omapdss-for-3.7' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next

Omapdss driver changes for the 3.7 merge window.

Notable changes:

* Basic writeback support for DISPC level. Writeback is not yet usable, though,
  as we need higher level code to actually expose the writeback feature to
  userspace.
* Rewriting the omapdss output drivers. We're trying to remove the hard links
  between the omapdss and the panels, and this rewrite work moves us closer to
  that goal.
* Cleanup and restructuring patches that have been made while working on device
  tree support for omapdss. Device tree support is still some way ahead, but
  these patches are good cleanups in themselves.
* Basic OMAP5 DSS support for DPI and DSI outputs.
* Workaround for the problem that GFX overlay's fifo is too small for high
  resolution scenarios, causing underflows.
* Cleanups that remove dependencies to omap platform code.

1 files changed, 12 insertions, 461 deletions

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 53710fadc82d..c54d2f620ce3 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -36,463 +36,15 @@
 static int num_managers;
 static struct omap_overlay_manager *managers;
 
-static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
+static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
+	return mgr->output ? mgr->output->device : NULL;
 }
 
-static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			mgr->device ? mgr->device->name : "<none>");
-}
-
-static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
-		const char *buf, size_t size)
-{
-	int r = 0;
-	size_t len = size;
-	struct omap_dss_device *dssdev = NULL;
-
-	int match(struct omap_dss_device *dssdev, void *data)
-	{
-		const char *str = data;
-		return sysfs_streq(dssdev->name, str);
-	}
-
-	if (buf[size-1] == '\n')
-		--len;
-
-	if (len > 0)
-		dssdev = omap_dss_find_device((void *)buf, match);
-
-	if (len > 0 && dssdev == NULL)
-		return -EINVAL;
-
-	if (dssdev)
-		DSSDBG("display %s found\n", dssdev->name);
-
-	if (mgr->device) {
-		r = mgr->unset_device(mgr);
-		if (r) {
-			DSSERR("failed to unset display\n");
-			goto put_device;
-		}
-	}
-
-	if (dssdev) {
-		r = mgr->set_device(mgr, dssdev);
-		if (r) {
-			DSSERR("failed to set manager\n");
-			goto put_device;
-		}
-
-		r = mgr->apply(mgr);
-		if (r) {
-			DSSERR("failed to apply dispc config\n");
-			goto put_device;
-		}
-	}
-
-put_device:
-	if (dssdev)
-		omap_dss_put_device(dssdev);
-
-	return r ? r : size;
-}
-
-static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
-					  char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
-}
-
-static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
-					   const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	u32 color;
-	int r;
-
-	r = kstrtouint(buf, 0, &color);
-	if (r)
-		return r;
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.default_color = color;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static const char *trans_key_type_str[] = {
-	"gfx-destination",
-	"video-source",
-};
-
-static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
-					   char *buf)
-{
-	enum omap_dss_trans_key_type key_type;
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	key_type = info.trans_key_type;
-	BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
-
-	return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
-}
-
-static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
-					    const char *buf, size_t size)
-{
-	enum omap_dss_trans_key_type key_type;
-	struct omap_overlay_manager_info info;
-	int r;
-
-	for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
-			key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
-		if (sysfs_streq(buf, trans_key_type_str[key_type]))
-			break;
-	}
-
-	if (key_type == ARRAY_SIZE(trans_key_type_str))
-		return -EINVAL;
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.trans_key_type = key_type;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
-					    char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
-}
-
-static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
-					     const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	u32 key_value;
-	int r;
-
-	r = kstrtouint(buf, 0, &key_value);
-	if (r)
-		return r;
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.trans_key = key_value;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
-					      char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
-}
-
-static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
-					       const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	bool enable;
-	int r;
-
-	r = strtobool(buf, &enable);
-	if (r)
-		return r;
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.trans_enabled = enable;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t manager_alpha_blending_enabled_show(
-		struct omap_overlay_manager *mgr, char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
-
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-		info.partial_alpha_enabled);
-}
-
-static ssize_t manager_alpha_blending_enabled_store(
-		struct omap_overlay_manager *mgr,
-		const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	bool enable;
-	int r;
-
-	WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
-
-	r = strtobool(buf, &enable);
-	if (r)
-		return r;
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.partial_alpha_enabled = enable;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
-		char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
-}
-
-static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
-		const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	int r;
-	bool enable;
-
-	if (!dss_has_feature(FEAT_CPR))
-		return -ENODEV;
-
-	r = strtobool(buf, &enable);
-	if (r)
-		return r;
-
-	mgr->get_manager_info(mgr, &info);
-
-	if (info.cpr_enable == enable)
-		return size;
-
-	info.cpr_enable = enable;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-static ssize_t manager_cpr_coef_show(struct omap_overlay_manager *mgr,
-		char *buf)
-{
-	struct omap_overlay_manager_info info;
-
-	mgr->get_manager_info(mgr, &info);
-
-	return snprintf(buf, PAGE_SIZE,
-			"%d %d %d %d %d %d %d %d %d\n",
-			info.cpr_coefs.rr,
-			info.cpr_coefs.rg,
-			info.cpr_coefs.rb,
-			info.cpr_coefs.gr,
-			info.cpr_coefs.gg,
-			info.cpr_coefs.gb,
-			info.cpr_coefs.br,
-			info.cpr_coefs.bg,
-			info.cpr_coefs.bb);
-}
-
-static ssize_t manager_cpr_coef_store(struct omap_overlay_manager *mgr,
-		const char *buf, size_t size)
-{
-	struct omap_overlay_manager_info info;
-	struct omap_dss_cpr_coefs coefs;
-	int r, i;
-	s16 *arr;
-
-	if (!dss_has_feature(FEAT_CPR))
-		return -ENODEV;
-
-	if (sscanf(buf, "%hd %hd %hd %hd %hd %hd %hd %hd %hd",
-				&coefs.rr, &coefs.rg, &coefs.rb,
-				&coefs.gr, &coefs.gg, &coefs.gb,
-				&coefs.br, &coefs.bg, &coefs.bb) != 9)
-		return -EINVAL;
-
-	arr = (s16[]){ coefs.rr, coefs.rg, coefs.rb,
-		coefs.gr, coefs.gg, coefs.gb,
-		coefs.br, coefs.bg, coefs.bb };
-
-	for (i = 0; i < 9; ++i) {
-		if (arr[i] < -512 || arr[i] > 511)
-			return -EINVAL;
-	}
-
-	mgr->get_manager_info(mgr, &info);
-
-	info.cpr_coefs = coefs;
-
-	r = mgr->set_manager_info(mgr, &info);
-	if (r)
-		return r;
-
-	r = mgr->apply(mgr);
-	if (r)
-		return r;
-
-	return size;
-}
-
-struct manager_attribute {
-	struct attribute attr;
-	ssize_t (*show)(struct omap_overlay_manager *, char *);
-	ssize_t	(*store)(struct omap_overlay_manager *, const char *, size_t);
-};
-
-#define MANAGER_ATTR(_name, _mode, _show, _store) \
-	struct manager_attribute manager_attr_##_name = \
-	__ATTR(_name, _mode, _show, _store)
-
-static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
-static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
-		manager_display_show, manager_display_store);
-static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
-		manager_default_color_show, manager_default_color_store);
-static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
-		manager_trans_key_type_show, manager_trans_key_type_store);
-static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
-		manager_trans_key_value_show, manager_trans_key_value_store);
-static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
-		manager_trans_key_enabled_show,
-		manager_trans_key_enabled_store);
-static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
-		manager_alpha_blending_enabled_show,
-		manager_alpha_blending_enabled_store);
-static MANAGER_ATTR(cpr_enable, S_IRUGO|S_IWUSR,
-		manager_cpr_enable_show,
-		manager_cpr_enable_store);
-static MANAGER_ATTR(cpr_coef, S_IRUGO|S_IWUSR,
-		manager_cpr_coef_show,
-		manager_cpr_coef_store);
-
-
-static struct attribute *manager_sysfs_attrs[] = {
-	&manager_attr_name.attr,
-	&manager_attr_display.attr,
-	&manager_attr_default_color.attr,
-	&manager_attr_trans_key_type.attr,
-	&manager_attr_trans_key_value.attr,
-	&manager_attr_trans_key_enabled.attr,
-	&manager_attr_alpha_blending_enabled.attr,
-	&manager_attr_cpr_enable.attr,
-	&manager_attr_cpr_coef.attr,
-	NULL
-};
-
-static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
-		char *buf)
-{
-	struct omap_overlay_manager *manager;
-	struct manager_attribute *manager_attr;
-
-	manager = container_of(kobj, struct omap_overlay_manager, kobj);
-	manager_attr = container_of(attr, struct manager_attribute, attr);
-
-	if (!manager_attr->show)
-		return -ENOENT;
-
-	return manager_attr->show(manager, buf);
-}
-
-static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
-		const char *buf, size_t size)
-{
-	struct omap_overlay_manager *manager;
-	struct manager_attribute *manager_attr;
-
-	manager = container_of(kobj, struct omap_overlay_manager, kobj);
-	manager_attr = container_of(attr, struct manager_attribute, attr);
-
-	if (!manager_attr->store)
-		return -ENOENT;
-
-	return manager_attr->store(manager, buf, size);
-}
-
-static const struct sysfs_ops manager_sysfs_ops = {
-	.show = manager_attr_show,
-	.store = manager_attr_store,
-};
-
-static struct kobj_type manager_ktype = {
-	.sysfs_ops = &manager_sysfs_ops,
-	.default_attrs = manager_sysfs_attrs,
-};
-
 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
+	struct omap_dss_device *dssdev = mgr->get_device(mgr);
 	u32 irq;
 	int r;
 
@@ -500,9 +52,9 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 	if (r)
 		return r;
 
-	if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC)
+	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
 		irq = DISPC_IRQ_EVSYNC_ODD;
-	else if (mgr->device->type == OMAP_DISPLAY_TYPE_HDMI)
+	else if (dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
 		irq = DISPC_IRQ_EVSYNC_EVEN;
 	else
 		irq = dispc_mgr_get_vsync_irq(mgr->id);
@@ -547,23 +99,24 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 			break;
 		}
 
-		mgr->set_device = &dss_mgr_set_device;
-		mgr->unset_device = &dss_mgr_unset_device;
+		mgr->set_output = &dss_mgr_set_output;
+		mgr->unset_output = &dss_mgr_unset_output;
 		mgr->apply = &omap_dss_mgr_apply;
 		mgr->set_manager_info = &dss_mgr_set_info;
 		mgr->get_manager_info = &dss_mgr_get_info;
 		mgr->wait_for_go = &dss_mgr_wait_for_go;
 		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
+		mgr->get_device = &dss_mgr_get_device;
 
 		mgr->caps = 0;
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
+		mgr->supported_outputs =
+			dss_feat_get_supported_outputs(mgr->id);
 
 		INIT_LIST_HEAD(&mgr->overlays);
 
-		r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
-				&pdev->dev.kobj, "manager%d", i);
-
+		r = dss_manager_kobj_init(mgr, pdev);
 		if (r)
 			DSSERR("failed to create sysfs file\n");
 	}
@@ -577,9 +130,7 @@ void dss_uninit_overlay_managers(struct platform_device *pdev)
 
 	for (i = 0; i < num_managers; ++i) {
 		struct omap_overlay_manager *mgr = &managers[i];
-
-		kobject_del(&mgr->kobj);
-		kobject_put(&mgr->kobj);
+		dss_manager_kobj_uninit(mgr);
 	}
 
 	kfree(managers);