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path: root/drivers/gpu/drm/armada/armada_drv.c
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Diffstat (limited to 'drivers/gpu/drm/armada/armada_drv.c')
-rw-r--r--drivers/gpu/drm/armada/armada_drv.c245
1 files changed, 172 insertions, 73 deletions
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 8ab3cd1a8cdb..e2d5792b140f 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -6,7 +6,9 @@
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
+#include <linux/component.h>
#include <linux/module.h>
+#include <linux/of_graph.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include "armada_crtc.h"
@@ -52,6 +54,11 @@ static const struct armada_drm_slave_config tda19988_config = {
};
#endif
+static bool is_componentized(struct device *dev)
+{
+ return dev->of_node || dev->platform_data;
+}
+
static void armada_drm_unref_work(struct work_struct *work)
{
struct armada_private *priv =
@@ -85,6 +92,7 @@ void armada_drm_queue_unref_work(struct drm_device *dev,
static int armada_drm_load(struct drm_device *dev, unsigned long flags)
{
const struct platform_device_id *id;
+ const struct armada_variant *variant;
struct armada_private *priv;
struct resource *res[ARRAY_SIZE(priv->dcrtc)];
struct resource *mem = NULL;
@@ -107,7 +115,7 @@ static int armada_drm_load(struct drm_device *dev, unsigned long flags)
return -EINVAL;
}
- if (!res[0] || !mem)
+ if (!mem)
return -ENXIO;
if (!devm_request_mem_region(dev->dev, mem->start,
@@ -128,11 +136,7 @@ static int armada_drm_load(struct drm_device *dev, unsigned long flags)
if (!id)
return -ENXIO;
- priv->variant = (struct armada_variant *)id->driver_data;
-
- ret = priv->variant->init(priv, dev->dev);
- if (ret)
- return ret;
+ variant = (const struct armada_variant *)id->driver_data;
INIT_WORK(&priv->fb_unref_work, armada_drm_unref_work);
INIT_KFIFO(priv->fb_unref);
@@ -155,40 +159,50 @@ static int armada_drm_load(struct drm_device *dev, unsigned long flags)
/* Create all LCD controllers */
for (n = 0; n < ARRAY_SIZE(priv->dcrtc); n++) {
+ int irq;
+
if (!res[n])
break;
- ret = armada_drm_crtc_create(dev, n, res[n]);
+ irq = platform_get_irq(dev->platformdev, n);
+ if (irq < 0)
+ goto err_kms;
+
+ ret = armada_drm_crtc_create(dev, dev->dev, res[n], irq,
+ variant, NULL);
if (ret)
goto err_kms;
}
+ if (is_componentized(dev->dev)) {
+ ret = component_bind_all(dev->dev, dev);
+ if (ret)
+ goto err_kms;
+ } else {
#ifdef CONFIG_DRM_ARMADA_TDA1998X
- ret = armada_drm_connector_slave_create(dev, &tda19988_config);
- if (ret)
- goto err_kms;
+ ret = armada_drm_connector_slave_create(dev, &tda19988_config);
+ if (ret)
+ goto err_kms;
#endif
+ }
- ret = drm_vblank_init(dev, n);
- if (ret)
- goto err_kms;
-
- ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0));
+ ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
if (ret)
- goto err_kms;
+ goto err_comp;
dev->vblank_disable_allowed = 1;
ret = armada_fbdev_init(dev);
if (ret)
- goto err_irq;
+ goto err_comp;
drm_kms_helper_poll_init(dev);
return 0;
- err_irq:
- drm_irq_uninstall(dev);
+ err_comp:
+ if (is_componentized(dev->dev))
+ component_unbind_all(dev->dev, dev);
err_kms:
drm_mode_config_cleanup(dev);
drm_mm_takedown(&priv->linear);
@@ -203,7 +217,10 @@ static int armada_drm_unload(struct drm_device *dev)
drm_kms_helper_poll_fini(dev);
armada_fbdev_fini(dev);
- drm_irq_uninstall(dev);
+
+ if (is_componentized(dev->dev))
+ component_unbind_all(dev->dev, dev);
+
drm_mode_config_cleanup(dev);
drm_mm_takedown(&priv->linear);
flush_work(&priv->fb_unref_work);
@@ -259,52 +276,6 @@ static void armada_drm_disable_vblank(struct drm_device *dev, int crtc)
armada_drm_crtc_disable_irq(priv->dcrtc[crtc], VSYNC_IRQ_ENA);
}
-static irqreturn_t armada_drm_irq_handler(int irq, void *arg)
-{
- struct drm_device *dev = arg;
- struct armada_private *priv = dev->dev_private;
- struct armada_crtc *dcrtc = priv->dcrtc[0];
- uint32_t v, stat = readl_relaxed(dcrtc->base + LCD_SPU_IRQ_ISR);
- irqreturn_t handled = IRQ_NONE;
-
- /*
- * This is rediculous - rather than writing bits to clear, we
- * have to set the actual status register value. This is racy.
- */
- writel_relaxed(0, dcrtc->base + LCD_SPU_IRQ_ISR);
-
- /* Mask out those interrupts we haven't enabled */
- v = stat & dcrtc->irq_ena;
-
- if (v & (VSYNC_IRQ|GRA_FRAME_IRQ|DUMB_FRAMEDONE)) {
- armada_drm_crtc_irq(dcrtc, stat);
- handled = IRQ_HANDLED;
- }
-
- return handled;
-}
-
-static int armada_drm_irq_postinstall(struct drm_device *dev)
-{
- struct armada_private *priv = dev->dev_private;
- struct armada_crtc *dcrtc = priv->dcrtc[0];
-
- spin_lock_irq(&dev->vbl_lock);
- writel_relaxed(dcrtc->irq_ena, dcrtc->base + LCD_SPU_IRQ_ENA);
- writel(0, dcrtc->base + LCD_SPU_IRQ_ISR);
- spin_unlock_irq(&dev->vbl_lock);
-
- return 0;
-}
-
-static void armada_drm_irq_uninstall(struct drm_device *dev)
-{
- struct armada_private *priv = dev->dev_private;
- struct armada_crtc *dcrtc = priv->dcrtc[0];
-
- writel(0, dcrtc->base + LCD_SPU_IRQ_ENA);
-}
-
static struct drm_ioctl_desc armada_ioctls[] = {
DRM_IOCTL_DEF_DRV(ARMADA_GEM_CREATE, armada_gem_create_ioctl,
DRM_UNLOCKED),
@@ -340,9 +311,6 @@ static struct drm_driver armada_drm_driver = {
.get_vblank_counter = drm_vblank_count,
.enable_vblank = armada_drm_enable_vblank,
.disable_vblank = armada_drm_disable_vblank,
- .irq_handler = armada_drm_irq_handler,
- .irq_postinstall = armada_drm_irq_postinstall,
- .irq_uninstall = armada_drm_irq_uninstall,
#ifdef CONFIG_DEBUG_FS
.debugfs_init = armada_drm_debugfs_init,
.debugfs_cleanup = armada_drm_debugfs_cleanup,
@@ -362,19 +330,140 @@ static struct drm_driver armada_drm_driver = {
.desc = "Armada SoC DRM",
.date = "20120730",
.driver_features = DRIVER_GEM | DRIVER_MODESET |
- DRIVER_HAVE_IRQ | DRIVER_PRIME,
+ DRIVER_PRIME,
.ioctls = armada_ioctls,
.fops = &armada_drm_fops,
};
+static int armada_drm_bind(struct device *dev)
+{
+ return drm_platform_init(&armada_drm_driver, to_platform_device(dev));
+}
+
+static void armada_drm_unbind(struct device *dev)
+{
+ drm_put_dev(dev_get_drvdata(dev));
+}
+
+static int compare_of(struct device *dev, void *data)
+{
+ return dev->of_node == data;
+}
+
+static int compare_dev_name(struct device *dev, void *data)
+{
+ const char *name = data;
+ return !strcmp(dev_name(dev), name);
+}
+
+static void armada_add_endpoints(struct device *dev,
+ struct component_match **match, struct device_node *port)
+{
+ struct device_node *ep, *remote;
+
+ for_each_child_of_node(port, ep) {
+ remote = of_graph_get_remote_port_parent(ep);
+ if (!remote || !of_device_is_available(remote)) {
+ of_node_put(remote);
+ continue;
+ } else if (!of_device_is_available(remote->parent)) {
+ dev_warn(dev, "parent device of %s is not available\n",
+ remote->full_name);
+ of_node_put(remote);
+ continue;
+ }
+
+ component_match_add(dev, match, compare_of, remote);
+ of_node_put(remote);
+ }
+}
+
+static int armada_drm_find_components(struct device *dev,
+ struct component_match **match)
+{
+ struct device_node *port;
+ int i;
+
+ if (dev->of_node) {
+ struct device_node *np = dev->of_node;
+
+ for (i = 0; ; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ component_match_add(dev, match, compare_of, port);
+ of_node_put(port);
+ }
+
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; ; i++) {
+ port = of_parse_phandle(np, "ports", i);
+ if (!port)
+ break;
+
+ armada_add_endpoints(dev, match, port);
+ of_node_put(port);
+ }
+ } else if (dev->platform_data) {
+ char **devices = dev->platform_data;
+ struct device *d;
+
+ for (i = 0; devices[i]; i++)
+ component_match_add(dev, match, compare_dev_name,
+ devices[i]);
+
+ if (i == 0) {
+ dev_err(dev, "missing 'ports' property\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; devices[i]; i++) {
+ d = bus_find_device_by_name(&platform_bus_type, NULL,
+ devices[i]);
+ if (d && d->of_node) {
+ for_each_child_of_node(d->of_node, port)
+ armada_add_endpoints(dev, match, port);
+ }
+ put_device(d);
+ }
+ }
+
+ return 0;
+}
+
+static const struct component_master_ops armada_master_ops = {
+ .bind = armada_drm_bind,
+ .unbind = armada_drm_unbind,
+};
+
static int armada_drm_probe(struct platform_device *pdev)
{
- return drm_platform_init(&armada_drm_driver, pdev);
+ if (is_componentized(&pdev->dev)) {
+ struct component_match *match = NULL;
+ int ret;
+
+ ret = armada_drm_find_components(&pdev->dev, &match);
+ if (ret < 0)
+ return ret;
+
+ return component_master_add_with_match(&pdev->dev,
+ &armada_master_ops, match);
+ } else {
+ return drm_platform_init(&armada_drm_driver, pdev);
+ }
}
static int armada_drm_remove(struct platform_device *pdev)
{
- drm_put_dev(platform_get_drvdata(pdev));
+ if (is_componentized(&pdev->dev))
+ component_master_del(&pdev->dev, &armada_master_ops);
+ else
+ drm_put_dev(platform_get_drvdata(pdev));
return 0;
}
@@ -402,14 +491,24 @@ static struct platform_driver armada_drm_platform_driver = {
static int __init armada_drm_init(void)
{
+ int ret;
+
armada_drm_driver.num_ioctls = ARRAY_SIZE(armada_ioctls);
- return platform_driver_register(&armada_drm_platform_driver);
+
+ ret = platform_driver_register(&armada_lcd_platform_driver);
+ if (ret)
+ return ret;
+ ret = platform_driver_register(&armada_drm_platform_driver);
+ if (ret)
+ platform_driver_unregister(&armada_lcd_platform_driver);
+ return ret;
}
module_init(armada_drm_init);
static void __exit armada_drm_exit(void)
{
platform_driver_unregister(&armada_drm_platform_driver);
+ platform_driver_unregister(&armada_lcd_platform_driver);
}
module_exit(armada_drm_exit);
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