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-rw-r--r--drivers/gpu/drm/bridge/Kconfig7
-rw-r--r--drivers/gpu/drm/bridge/Makefile1
-rw-r--r--drivers/gpu/drm/bridge/ti-tfp410.c317
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_crtc.c580
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_drv.c210
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_drv.h11
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_external.c260
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_external.h5
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_panel.c2
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_regs.h15
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_tfp410.c2
11 files changed, 1020 insertions, 390 deletions
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 29755bc32aab..eb8688ec6f18 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -90,6 +90,13 @@ config DRM_TOSHIBA_TC358767
---help---
Toshiba TC358767 eDP bridge chip driver.
+config DRM_TI_TFP410
+ tristate "TI TFP410 DVI/HDMI bridge"
+ depends on OF
+ select DRM_KMS_HELPER
+ ---help---
+ Texas Instruments TFP410 DVI/HDMI Transmitter driver
+
source "drivers/gpu/drm/bridge/analogix/Kconfig"
source "drivers/gpu/drm/bridge/adv7511/Kconfig"
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index 1439ad84ccb7..2e83a7855399 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_DRM_SII902X) += sii902x.o
obj-$(CONFIG_DRM_TOSHIBA_TC358767) += tc358767.o
obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix/
obj-$(CONFIG_DRM_I2C_ADV7511) += adv7511/
+obj-$(CONFIG_DRM_TI_TFP410) += ti-tfp410.o
diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
new file mode 100644
index 000000000000..b054ea349952
--- /dev/null
+++ b/drivers/gpu/drm/bridge/ti-tfp410.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2016 Texas Instruments
+ * Author: Jyri Sarha <jsarha@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+
+struct tfp410 {
+ struct drm_bridge bridge;
+ struct drm_connector connector;
+
+ struct i2c_adapter *ddc;
+
+ struct device *dev;
+};
+
+static inline struct tfp410 *
+drm_bridge_to_tfp410(struct drm_bridge *bridge)
+{
+ return container_of(bridge, struct tfp410, bridge);
+}
+
+static inline struct tfp410 *
+drm_connector_to_tfp410(struct drm_connector *connector)
+{
+ return container_of(connector, struct tfp410, connector);
+}
+
+static int tfp410_get_modes(struct drm_connector *connector)
+{
+ struct tfp410 *dvi = drm_connector_to_tfp410(connector);
+ struct edid *edid;
+ int ret;
+
+ if (!dvi->ddc)
+ goto fallback;
+
+ edid = drm_get_edid(connector, dvi->ddc);
+ if (!edid) {
+ DRM_INFO("EDID read failed. Fallback to standard modes\n");
+ goto fallback;
+ }
+
+ drm_mode_connector_update_edid_property(connector, edid);
+
+ return drm_add_edid_modes(connector, edid);
+fallback:
+ /* No EDID, fallback on the XGA standard modes */
+ ret = drm_add_modes_noedid(connector, 1920, 1200);
+
+ /* And prefer a mode pretty much anything can handle */
+ drm_set_preferred_mode(connector, 1024, 768);
+
+ return ret;
+}
+
+static const struct drm_connector_helper_funcs tfp410_con_helper_funcs = {
+ .get_modes = tfp410_get_modes,
+};
+
+static enum drm_connector_status
+tfp410_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct tfp410 *dvi = drm_connector_to_tfp410(connector);
+
+ if (dvi->ddc) {
+ if (drm_probe_ddc(dvi->ddc))
+ return connector_status_connected;
+ else
+ return connector_status_disconnected;
+ }
+
+ return connector_status_unknown;
+}
+
+static const struct drm_connector_funcs tfp410_con_funcs = {
+ .dpms = drm_atomic_helper_connector_dpms,
+ .detect = tfp410_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = drm_connector_cleanup,
+ .reset = drm_atomic_helper_connector_reset,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int tfp410_attach(struct drm_bridge *bridge)
+{
+ struct tfp410 *dvi = drm_bridge_to_tfp410(bridge);
+ int ret;
+
+ if (!bridge->encoder) {
+ dev_err(dvi->dev, "Missing encoder\n");
+ return -ENODEV;
+ }
+
+ drm_connector_helper_add(&dvi->connector,
+ &tfp410_con_helper_funcs);
+ ret = drm_connector_init(bridge->dev, &dvi->connector,
+ &tfp410_con_funcs, DRM_MODE_CONNECTOR_HDMIA);
+ if (ret) {
+ dev_err(dvi->dev, "drm_connector_init() failed: %d\n", ret);
+ return ret;
+ }
+
+ drm_mode_connector_attach_encoder(&dvi->connector,
+ bridge->encoder);
+
+ return 0;
+}
+
+static const struct drm_bridge_funcs tfp410_bridge_funcs = {
+ .attach = tfp410_attach,
+};
+
+static int tfp410_get_connector_ddc(struct tfp410 *dvi)
+{
+ struct device_node *ep = NULL, *connector_node = NULL;
+ struct device_node *ddc_phandle = NULL;
+ int ret = 0;
+
+ /* port@1 is the connector node */
+ ep = of_graph_get_endpoint_by_regs(dvi->dev->of_node, 1, -1);
+ if (!ep)
+ goto fail;
+
+ connector_node = of_graph_get_remote_port_parent(ep);
+ if (!connector_node)
+ goto fail;
+
+ ddc_phandle = of_parse_phandle(connector_node, "ddc-i2c-bus", 0);
+ if (!ddc_phandle)
+ goto fail;
+
+ dvi->ddc = of_get_i2c_adapter_by_node(ddc_phandle);
+ if (dvi->ddc)
+ dev_info(dvi->dev, "Connector's ddc i2c bus found\n");
+ else
+ ret = -EPROBE_DEFER;
+
+fail:
+ of_node_put(ep);
+ of_node_put(connector_node);
+ of_node_put(ddc_phandle);
+ return ret;
+}
+
+static int tfp410_init(struct device *dev)
+{
+ struct tfp410 *dvi;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device-tree data is missing\n");
+ return -ENXIO;
+ }
+
+ dvi = devm_kzalloc(dev, sizeof(*dvi), GFP_KERNEL);
+ if (!dvi)
+ return -ENOMEM;
+ dev_set_drvdata(dev, dvi);
+
+ dvi->bridge.funcs = &tfp410_bridge_funcs;
+ dvi->bridge.of_node = dev->of_node;
+ dvi->dev = dev;
+
+ ret = tfp410_get_connector_ddc(dvi);
+ if (ret)
+ goto fail;
+
+ ret = drm_bridge_add(&dvi->bridge);
+ if (ret) {
+ dev_err(dev, "drm_bridge_add() failed: %d\n", ret);
+ goto fail;
+ }
+
+ return 0;
+fail:
+ i2c_put_adapter(dvi->ddc);
+ return ret;
+}
+
+static int tfp410_fini(struct device *dev)
+{
+ struct tfp410 *dvi = dev_get_drvdata(dev);
+
+ drm_bridge_remove(&dvi->bridge);
+
+ if (dvi->ddc)
+ i2c_put_adapter(dvi->ddc);
+
+ return 0;
+}
+
+static int tfp410_probe(struct platform_device *pdev)
+{
+ return tfp410_init(&pdev->dev);
+}
+
+static int tfp410_remove(struct platform_device *pdev)
+{
+ return tfp410_fini(&pdev->dev);
+}
+
+static const struct of_device_id tfp410_match[] = {
+ { .compatible = "ti,tfp410" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tfp410_match);
+
+struct platform_driver tfp410_platform_driver = {
+ .probe = tfp410_probe,
+ .remove = tfp410_remove,
+ .driver = {
+ .name = "tfp410-bridge",
+ .of_match_table = tfp410_match,
+ },
+};
+
+#if IS_ENABLED(CONFIG_I2C)
+/* There is currently no i2c functionality. */
+static int tfp410_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int reg;
+
+ if (!client->dev.of_node ||
+ of_property_read_u32(client->dev.of_node, "reg", &reg)) {
+ dev_err(&client->dev,
+ "Can't get i2c reg property from device-tree\n");
+ return -ENXIO;
+ }
+
+ return tfp410_init(&client->dev);
+}
+
+static int tfp410_i2c_remove(struct i2c_client *client)
+{
+ return tfp410_fini(&client->dev);
+}
+
+static const struct i2c_device_id tfp410_i2c_ids[] = {
+ { "tfp410", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tfp410_i2c_ids);
+
+static struct i2c_driver tfp410_i2c_driver = {
+ .driver = {
+ .name = "tfp410",
+ .of_match_table = of_match_ptr(tfp410_match),
+ },
+ .id_table = tfp410_i2c_ids,
+ .probe = tfp410_i2c_probe,
+ .remove = tfp410_i2c_remove,
+};
+#endif /* IS_ENABLED(CONFIG_I2C) */
+
+static struct {
+ uint i2c:1;
+ uint platform:1;
+} tfp410_registered_driver;
+
+static int __init tfp410_module_init(void)
+{
+ int ret;
+
+#if IS_ENABLED(CONFIG_I2C)
+ ret = i2c_add_driver(&tfp410_i2c_driver);
+ if (ret)
+ pr_err("%s: registering i2c driver failed: %d",
+ __func__, ret);
+ else
+ tfp410_registered_driver.i2c = 1;
+#endif
+
+ ret = platform_driver_register(&tfp410_platform_driver);
+ if (ret)
+ pr_err("%s: registering platform driver failed: %d",
+ __func__, ret);
+ else
+ tfp410_registered_driver.platform = 1;
+
+ if (tfp410_registered_driver.i2c ||
+ tfp410_registered_driver.platform)
+ return 0;
+
+ return ret;
+}
+module_init(tfp410_module_init);
+
+static void __exit tfp410_module_exit(void)
+{
+#if IS_ENABLED(CONFIG_I2C)
+ if (tfp410_registered_driver.i2c)
+ i2c_del_driver(&tfp410_i2c_driver);
+#endif
+ if (tfp410_registered_driver.platform)
+ platform_driver_unregister(&tfp410_platform_driver);
+}
+module_exit(tfp410_module_exit);
+
+MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
+MODULE_DESCRIPTION("TI TFP410 DVI bridge driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 822531ebd4b0..9942b0577d6e 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -21,11 +21,15 @@
#include <drm/drm_flip_work.h>
#include <drm/drm_plane_helper.h>
#include <linux/workqueue.h>
+#include <linux/completion.h>
+#include <linux/dma-mapping.h>
#include "tilcdc_drv.h"
#include "tilcdc_regs.h"
-#define TILCDC_VBLANK_SAFETY_THRESHOLD_US 1000
+#define TILCDC_VBLANK_SAFETY_THRESHOLD_US 1000
+#define TILCDC_PALETTE_SIZE 32
+#define TILCDC_PALETTE_FIRST_ENTRY 0x4000
struct tilcdc_crtc {
struct drm_crtc base;
@@ -33,7 +37,9 @@ struct tilcdc_crtc {
struct drm_plane primary;
const struct tilcdc_panel_info *info;
struct drm_pending_vblank_event *event;
+ struct mutex enable_lock;
bool enabled;
+ bool shutdown;
wait_queue_head_t frame_done_wq;
bool frame_done;
spinlock_t irq_lock;
@@ -53,6 +59,11 @@ struct tilcdc_crtc {
int sync_lost_count;
bool frame_intact;
+ struct work_struct recover_work;
+
+ dma_addr_t palette_dma_handle;
+ u16 *palette_base;
+ struct completion palette_loaded;
};
#define to_tilcdc_crtc(x) container_of(x, struct tilcdc_crtc, base)
@@ -71,6 +82,7 @@ static void set_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb)
{
struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
struct drm_device *dev = crtc->dev;
+ struct tilcdc_drm_private *priv = dev->dev_private;
struct drm_gem_cma_object *gem;
dma_addr_t start, end;
u64 dma_base_and_ceiling;
@@ -88,7 +100,10 @@ static void set_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb)
* unlikely that LCDC would fetch the DMA addresses in the middle of
* an update.
*/
- dma_base_and_ceiling = (u64)(end - 1) << 32 | start;
+ if (priv->rev == 1)
+ end -= 1;
+
+ dma_base_and_ceiling = (u64)end << 32 | start;
tilcdc_write64(dev, LCDC_DMA_FB_BASE_ADDR_0_REG, dma_base_and_ceiling);
if (tilcdc_crtc->curr_fb)
@@ -98,6 +113,56 @@ static void set_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb)
tilcdc_crtc->curr_fb = fb;
}
+/*
+ * The driver currently only supports only true color formats. For
+ * true color the palette block is bypassed, but a 32 byte palette
+ * should still be loaded. The first 16-bit entry must be 0x4000 while
+ * all other entries must be zeroed.
+ */
+static void tilcdc_crtc_load_palette(struct drm_crtc *crtc)
+{
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct tilcdc_drm_private *priv = dev->dev_private;
+ int ret;
+
+ reinit_completion(&tilcdc_crtc->palette_loaded);
+
+ /* Tell the LCDC where the palette is located. */
+ tilcdc_write(dev, LCDC_DMA_FB_BASE_ADDR_0_REG,
+ tilcdc_crtc->palette_dma_handle);
+ tilcdc_write(dev, LCDC_DMA_FB_CEILING_ADDR_0_REG,
+ (u32) tilcdc_crtc->palette_dma_handle +
+ TILCDC_PALETTE_SIZE - 1);
+
+ /* Set dma load mode for palette loading only. */
+ tilcdc_write_mask(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_PALETTE_LOAD_MODE(PALETTE_ONLY),
+ LCDC_PALETTE_LOAD_MODE_MASK);
+
+ /* Enable DMA Palette Loaded Interrupt */
+ if (priv->rev == 1)
+ tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_V1_PL_INT_ENA);
+ else
+ tilcdc_write(dev, LCDC_INT_ENABLE_SET_REG, LCDC_V2_PL_INT_ENA);
+
+ /* Enable LCDC DMA and wait for palette to be loaded. */
+ tilcdc_clear_irqstatus(dev, 0xffffffff);
+ tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
+
+ ret = wait_for_completion_timeout(&tilcdc_crtc->palette_loaded,
+ msecs_to_jiffies(50));
+ if (ret == 0)
+ dev_err(dev->dev, "%s: Palette loading timeout", __func__);
+
+ /* Disable LCDC DMA and DMA Palette Loaded Interrupt. */
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
+ if (priv->rev == 1)
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_V1_PL_INT_ENA);
+ else
+ tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG, LCDC_V2_PL_INT_ENA);
+}
+
static void tilcdc_crtc_enable_irqs(struct drm_device *dev)
{
struct tilcdc_drm_private *priv = dev->dev_private;
@@ -106,6 +171,7 @@ static void tilcdc_crtc_enable_irqs(struct drm_device *dev)
if (priv->rev == 1) {
tilcdc_set(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_V1_SYNC_LOST_INT_ENA | LCDC_V1_FRAME_DONE_INT_ENA |
LCDC_V1_UNDERFLOW_INT_ENA);
tilcdc_set(dev, LCDC_DMA_CTRL_REG,
LCDC_V1_END_OF_FRAME_INT_ENA);
@@ -124,6 +190,7 @@ static void tilcdc_crtc_disable_irqs(struct drm_device *dev)
/* disable irqs that we might have enabled: */
if (priv->rev == 1) {
tilcdc_clear(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_V1_SYNC_LOST_INT_ENA | LCDC_V1_FRAME_DONE_INT_ENA |
LCDC_V1_UNDERFLOW_INT_ENA | LCDC_V1_PL_INT_ENA);
tilcdc_clear(dev, LCDC_DMA_CTRL_REG,
LCDC_V1_END_OF_FRAME_INT_ENA);
@@ -148,193 +215,68 @@ static void reset(struct drm_crtc *crtc)
tilcdc_clear(dev, LCDC_CLK_RESET_REG, LCDC_CLK_MAIN_RESET);
}
-static void tilcdc_crtc_enable(struct drm_crtc *crtc)
+/*
+ * Calculate the percentage difference between the requested pixel clock rate
+ * and the effective rate resulting from calculating the clock divider value.
+ */
+static unsigned int tilcdc_pclk_diff(unsigned long rate,
+ unsigned long real_rate)
{
- struct drm_device *dev = crtc->dev;
- struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
-
- WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
-
- if (tilcdc_crtc->enabled)
- return;
-
- pm_runtime_get_sync(dev->dev);
-
- reset(crtc);
-
- tilcdc_crtc_enable_irqs(dev);
-
- tilcdc_clear(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE);
- tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_PALETTE_LOAD_MODE(DATA_ONLY));
- tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
-
- drm_crtc_vblank_on(crtc);
+ int r = rate / 100, rr = real_rate / 100;
- tilcdc_crtc->enabled = true;
+ return (unsigned int)(abs(((rr - r) * 100) / r));
}
-void tilcdc_crtc_disable(struct drm_crtc *crtc)
+static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
{
- struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
struct drm_device *dev = crtc->dev;
struct tilcdc_drm_private *priv = dev->dev_private;
-
- WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
-
- if (!tilcdc_crtc->enabled)
- return;
-
- tilcdc_crtc->frame_done = false;
- tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
-
- /*
- * if necessary wait for framedone irq which will still come
- * before putting things to sleep..
- */
- if (priv->rev == 2) {
- int ret = wait_event_timeout(tilcdc_crtc->frame_done_wq,
- tilcdc_crtc->frame_done,
- msecs_to_jiffies(500));
- if (ret == 0)
- dev_err(dev->dev, "%s: timeout waiting for framedone\n",
- __func__);
- }
-
- drm_crtc_vblank_off(crtc);
-
- tilcdc_crtc_disable_irqs(dev);
-
- pm_runtime_put_sync(dev->dev);
-
- if (tilcdc_crtc->next_fb) {
- drm_flip_work_queue(&tilcdc_crtc->unref_work,
- tilcdc_crtc->next_fb);
- tilcdc_crtc->next_fb = NULL;
- }
-
- if (tilcdc_crtc->curr_fb) {
- drm_flip_work_queue(&tilcdc_crtc->unref_work,
- tilcdc_crtc->curr_fb);
- tilcdc_crtc->curr_fb = NULL;
- }
-
- drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq);
- tilcdc_crtc->last_vblank = ktime_set(0, 0);
-
- tilcdc_crtc->enabled = false;
-}
-
-static bool tilcdc_crtc_is_on(struct drm_crtc *crtc)
-{
- return crtc->state && crtc->state->enable && crtc->state->active;
-}
-
-static void tilcdc_crtc_destroy(struct drm_crtc *crtc)
-{
- struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
- struct tilcdc_drm_private *priv = crtc->dev->dev_private;
-
- drm_modeset_lock_crtc(crtc, NULL);
- tilcdc_crtc_disable(crtc);
- drm_modeset_unlock_crtc(crtc);
-
- flush_workqueue(priv->wq);
-
- of_node_put(crtc->port);
- drm_crtc_cleanup(crtc);
- drm_flip_work_cleanup(&tilcdc_crtc->unref_work);
-}
-
-int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event)
-{
- struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
- struct drm_device *dev = crtc->dev;
- unsigned long flags;
-
- WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
-
- if (tilcdc_crtc->event) {
- dev_err(dev->dev, "already pending page flip!\n");
- return -EBUSY;
- }
-
- drm_framebuffer_reference(fb);
-
- crtc->primary->fb = fb;
-
- spin_lock_irqsave(&tilcdc_crtc->irq_lock, flags);
-
- if (crtc->hwmode.vrefresh && ktime_to_ns(tilcdc_crtc->last_vblank)) {
- ktime_t next_vblank;
- s64 tdiff;
-
- next_vblank = ktime_add_us(tilcdc_crtc->last_vblank,
- 1000000 / crtc->hwmode.vrefresh);
-
- tdiff = ktime_to_us(ktime_sub(next_vblank, ktime_get()));
-
- if (tdiff < TILCDC_VBLANK_SAFETY_THRESHOLD_US)
- tilcdc_crtc->next_fb = fb;
- }
-
- if (tilcdc_crtc->next_fb != fb)
- set_scanout(crtc, fb);
-
- tilcdc_crtc->event = event;
-
- spin_unlock_irqrestore(&tilcdc_crtc->irq_lock, flags);
-
- return 0;
-}
-
-static bool tilcdc_crtc_mode_fixup(struct drm_crtc *crtc,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+ unsigned long clk_rate, real_rate, req_rate;
+ unsigned int clkdiv;
+ int ret;
- if (!tilcdc_crtc->simulate_vesa_sync)
- return true;
+ clkdiv = 2; /* first try using a standard divider of 2 */
- /*
- * tilcdc does not generate VESA-compliant sync but aligns
- * VS on the second edge of HS instead of first edge.
- * We use adjusted_mode, to fixup sync by aligning both rising
- * edges and add HSKEW offset to fix the sync.
- */
- adjusted_mode->hskew = mode->hsync_end - mode->hsync_start;
- adjusted_mode->flags |= DRM_MODE_FLAG_HSKEW;
+ /* mode.clock is in KHz, set_rate wants parameter in Hz */
+ req_rate = crtc->mode.clock * 1000;
- if (mode->flags & DRM_MODE_FLAG_NHSYNC) {
- adjusted_mode->flags |= DRM_MODE_FLAG_PHSYNC;
- adjusted_mode->flags &= ~DRM_MODE_FLAG_NHSYNC;
- } else {
- adjusted_mode->flags |= DRM_MODE_FLAG_NHSYNC;
- adjusted_mode->flags &= ~DRM_MODE_FLAG_PHSYNC;
- }
+ ret = clk_set_rate(priv->clk, req_rate * clkdiv);
+ clk_rate = clk_get_rate(priv->clk);
+ if (ret < 0) {
+ /*
+ * If we fail to set the clock rate (some architectures don't
+ * use the common clock framework yet and may not implement
+ * all the clk API calls for every clock), try the next best
+ * thing: adjusting the clock divider, unless clk_get_rate()
+ * failed as well.
+ */
+ if (!clk_rate) {
+ /* Nothing more we can do. Just bail out. */
+ dev_err(dev->dev,
+ "failed to set the pixel clock - unable to read current lcdc clock rate\n");
+ return;
+ }
- return true;
-}
+ clkdiv = DIV_ROUND_CLOSEST(clk_rate, req_rate);
-static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct tilcdc_drm_private *priv = dev->dev_private;
- struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
- const unsigned clkdiv = 2; /* using a fixed divider of 2 */
- int ret;
+ /*
+ * Emit a warning if the real clock rate resulting from the
+ * calculated divider differs much from the requested rate.
+ *
+ * 5% is an arbitrary value - LCDs are usually quite tolerant
+ * about pixel clock rates.
+ */
+ real_rate = clkdiv * req_rate;
- /* mode.clock is in KHz, set_rate wants parameter in Hz */
- ret = clk_set_rate(priv->clk, crtc->mode.clock * 1000 * clkdiv);
- if (ret < 0) {
- dev_err(dev->dev, "failed to set display clock rate to: %d\n",
- crtc->mode.clock);
- return;
+ if (tilcdc_pclk_diff(clk_rate, real_rate) > 5) {
+ dev_warn(dev->dev,
+ "effective pixel clock rate (%luHz) differs from the calculated rate (%luHz)\n",
+ clk_rate, real_rate);
+ }
}
- tilcdc_crtc->lcd_fck_rate = clk_get_rate(priv->clk);
+ tilcdc_crtc->lcd_fck_rate = clk_rate;
DBG("lcd_clk=%u, mode clock=%d, div=%u",
tilcdc_crtc->lcd_fck_rate, crtc->mode.clock, clkdiv);
@@ -349,7 +291,7 @@ static void tilcdc_crtc_set_clk(struct drm_crtc *crtc)
LCDC_V2_CORE_CLK_EN);
}
-static void tilcdc_crtc_mode_set_nofb(struct drm_crtc *crtc)
+static void tilcdc_crtc_set_mode(struct drm_crtc *crtc)
{
struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
struct drm_device *dev = crtc->dev;
@@ -359,8 +301,6 @@ static void tilcdc_crtc_mode_set_nofb(struct drm_crtc *crtc)
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
struct drm_framebuffer *fb = crtc->primary->state->fb;
- WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
-
if (WARN_ON(!info))
return;
@@ -509,15 +449,226 @@ static void tilcdc_crtc_mode_set_nofb(struct drm_crtc *crtc)
else
tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ORDER);
- drm_framebuffer_reference(fb);
+ tilcdc_crtc_set_clk(crtc);
+
+ tilcdc_crtc_load_palette(crtc);
set_scanout(crtc, fb);
- tilcdc_crtc_set_clk(crtc);
+ drm_framebuffer_reference(fb);
crtc->hwmode = crtc->state->adjusted_mode;
}
+static void tilcdc_crtc_enable(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+
+ WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
+ mutex_lock(&tilcdc_crtc->enable_lock);
+ if (tilcdc_crtc->enabled || tilcdc_crtc->shutdown) {
+ mutex_unlock(&tilcdc_crtc->enable_lock);
+ return;
+ }
+
+ pm_runtime_get_sync(dev->dev);
+
+ reset(crtc);
+
+ tilcdc_crtc_set_mode(crtc);
+
+ tilcdc_crtc_enable_irqs(dev);
+
+ tilcdc_clear(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE);
+ tilcdc_write_mask(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_PALETTE_LOAD_MODE(DATA_ONLY),
+ LCDC_PALETTE_LOAD_MODE_MASK);
+ tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
+
+ drm_crtc_vblank_on(crtc);
+
+ tilcdc_crtc->enabled = true;
+ mutex_unlock(&tilcdc_crtc->enable_lock);
+}
+
+static void tilcdc_crtc_off(struct drm_crtc *crtc, bool shutdown)
+{
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct tilcdc_drm_private *priv = dev->dev_private;
+ int ret;
+
+ mutex_lock(&tilcdc_crtc->enable_lock);
+ if (shutdown)
+ tilcdc_crtc->shutdown = true;
+ if (!tilcdc_crtc->enabled) {
+ mutex_unlock(&tilcdc_crtc->enable_lock);
+ return;
+ }
+ tilcdc_crtc->frame_done = false;
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE);
+
+ /*
+ * Wait for framedone irq which will still come before putting
+ * things to sleep..
+ */
+ ret = wait_event_timeout(tilcdc_crtc->frame_done_wq,
+ tilcdc_crtc->frame_done,
+ msecs_to_jiffies(500));
+ if (ret == 0)
+ dev_err(dev->dev, "%s: timeout waiting for framedone\n",
+ __func__);
+
+ drm_crtc_vblank_off(crtc);
+
+ tilcdc_crtc_disable_irqs(dev);
+
+ pm_runtime_put_sync(dev->dev);
+
+ if (tilcdc_crtc->next_fb) {
+ drm_flip_work_queue(&tilcdc_crtc->unref_work,
+ tilcdc_crtc->next_fb);
+ tilcdc_crtc->next_fb = NULL;
+ }
+
+ if (tilcdc_crtc->curr_fb) {
+ drm_flip_work_queue(&tilcdc_crtc->unref_work,
+ tilcdc_crtc->curr_fb);
+ tilcdc_crtc->curr_fb = NULL;
+ }
+
+ drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq);
+ tilcdc_crtc->last_vblank = ktime_set(0, 0);
+
+ tilcdc_crtc->enabled = false;
+ mutex_unlock(&tilcdc_crtc->enable_lock);
+}
+
+static void tilcdc_crtc_disable(struct drm_crtc *crtc)
+{
+ WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
+ tilcdc_crtc_off(crtc, false);
+}
+
+void tilcdc_crtc_shutdown(struct drm_crtc *crtc)
+{
+ tilcdc_crtc_off(crtc, true);
+}
+
+static bool tilcdc_crtc_is_on(struct drm_crtc *crtc)
+{
+ return crtc->state && crtc->state->enable && crtc->state->active;
+}
+
+static void tilcdc_crtc_recover_work(struct work_struct *work)
+{
+ struct tilcdc_crtc *tilcdc_crtc =
+ container_of(work, struct tilcdc_crtc, recover_work);
+ struct drm_crtc *crtc = &tilcdc_crtc->base;
+
+ dev_info(crtc->dev->dev, "%s: Reset CRTC", __func__);
+
+ drm_modeset_lock_crtc(crtc, NULL);
+
+ if (!tilcdc_crtc_is_on(crtc))
+ goto out;
+
+ tilcdc_crtc_disable(crtc);
+ tilcdc_crtc_enable(crtc);
+out:
+ drm_modeset_unlock_crtc(crtc);
+}
+
+static void tilcdc_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+ struct tilcdc_drm_private *priv = crtc->dev->dev_private;
+
+ drm_modeset_lock_crtc(crtc, NULL);
+ tilcdc_crtc_disable(crtc);
+ drm_modeset_unlock_crtc(crtc);
+
+ flush_workqueue(priv->wq);
+
+ of_node_put(crtc->port);
+ drm_crtc_cleanup(crtc);
+ drm_flip_work_cleanup(&tilcdc_crtc->unref_work);
+}
+
+int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_pending_vblank_event *event)
+{
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ unsigned long flags;
+
+ WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
+
+ if (tilcdc_crtc->event) {
+ dev_err(dev->dev, "already pending page flip!\n");
+ return -EBUSY;
+ }
+
+ drm_framebuffer_reference(fb);
+
+ crtc->primary->fb = fb;
+
+ spin_lock_irqsave(&tilcdc_crtc->irq_lock, flags);
+
+ if (crtc->hwmode.vrefresh && ktime_to_ns(tilcdc_crtc->last_vblank)) {
+ ktime_t next_vblank;
+ s64 tdiff;
+
+ next_vblank = ktime_add_us(tilcdc_crtc->last_vblank,
+ 1000000 / crtc->hwmode.vrefresh);
+
+ tdiff = ktime_to_us(ktime_sub(next_vblank, ktime_get()));
+
+ if (tdiff < TILCDC_VBLANK_SAFETY_THRESHOLD_US)
+ tilcdc_crtc->next_fb = fb;
+ }
+
+ if (tilcdc_crtc->next_fb != fb)
+ set_scanout(crtc, fb);
+
+ tilcdc_crtc->event = event;
+
+ spin_unlock_irqrestore(&tilcdc_crtc->irq_lock, flags);
+
+ return 0;
+}
+
+static bool tilcdc_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
+
+ if (!tilcdc_crtc->simulate_vesa_sync)
+ return true;
+
+ /*
+ * tilcdc does not generate VESA-compliant sync but aligns
+ * VS on the second edge of HS instead of first edge.
+ * We use adjusted_mode, to fixup sync by aligning both rising
+ * edges and add HSKEW offset to fix the sync.
+ */
+ adjusted_mode->hskew = mode->hsync_end - mode->hsync_start;
+ adjusted_mode->flags |= DRM_MODE_FLAG_HSKEW;
+
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC) {
+ adjusted_mode->flags |= DRM_MODE_FLAG_PHSYNC;
+ adjusted_mode->flags &= ~DRM_MODE_FLAG_NHSYNC;
+ } else {
+ adjusted_mode->flags |= DRM_MODE_FLAG_NHSYNC;
+ adjusted_mode->flags &= ~DRM_MODE_FLAG_PHSYNC;
+ }
+
+ return true;
+}
+
static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
@@ -558,7 +709,6 @@ static const struct drm_crtc_helper_funcs tilcdc_crtc_helper_funcs = {
.enable = tilcdc_crtc_enable,
.disable = tilcdc_crtc_disable,
.atomic_check = tilcdc_crtc_atomic_check,
- .mode_set_nofb = tilcdc_crtc_mode_set_nofb,
};
int tilcdc_crtc_max_width(struct drm_crtc *crtc)
@@ -754,28 +904,48 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc)
}
if (stat & LCDC_FIFO_UNDERFLOW)
- dev_err_ratelimited(dev->dev, "%s(0x%08x): FIFO underfow",
+ dev_err_ratelimited(dev->dev, "%s(0x%08x): FIFO underflow",
__func__, stat);
- /* For revision 2 only */
- if (priv->rev == 2) {
- if (stat & LCDC_FRAME_DONE) {
- tilcdc_crtc->frame_done = true;
- wake_up(&tilcdc_crtc->frame_done_wq);
- }
+ if (stat & LCDC_PL_LOAD_DONE) {
+ complete(&tilcdc_crtc->palette_loaded);
+ if (priv->rev == 1)
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_V1_PL_INT_ENA);
+ else
+ tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG,
+ LCDC_V2_PL_INT_ENA);
+ }
- if (stat & LCDC_SYNC_LOST) {
- dev_err_ratelimited(dev->dev, "%s(0x%08x): Sync lost",
- __func__, stat);
- tilcdc_crtc->frame_intact = false;
- if (tilcdc_crtc->sync_lost_count++ >
- SYNC_LOST_COUNT_LIMIT) {
- dev_err(dev->dev, "%s(0x%08x): Sync lost flood detected, disabling the interrupt", __func__, stat);
+ if (stat & LCDC_SYNC_LOST) {
+ dev_err_ratelimited(dev->dev, "%s(0x%08x): Sync lost",
+ __func__, stat);
+ tilcdc_crtc->frame_intact = false;
+ if (tilcdc_crtc->sync_lost_count++ >
+ SYNC_LOST_COUNT_LIMIT) {
+ dev_err(dev->dev, "%s(0x%08x): Sync lost flood detected, recovering", __func__, stat);
+ queue_work(system_wq, &tilcdc_crtc->recover_work);
+ if (priv->rev == 1)
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_V1_SYNC_LOST_INT_ENA);
+ else
tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG,
LCDC_SYNC_LOST);
- }
+ tilcdc_crtc->sync_lost_count = 0;
}
+ }
+
+ if (stat & LCDC_FRAME_DONE) {
+ tilcdc_crtc->frame_done = true;
+ wake_up(&tilcdc_crtc->frame_done_wq);
+ /* rev 1 lcdc appears to hang if irq is not disbaled here */
+ if (priv->rev == 1)
+ tilcdc_clear(dev, LCDC_RASTER_CTRL_REG,
+ LCDC_V1_FRAME_DONE_INT_ENA);
+ }
+ /* For revision 2 only */
+ if (priv->rev == 2) {
/* Indicate to LCDC that the interrupt service routine has
* completed, see 13.3.6.1.6 in AM335x TRM.
*/
@@ -785,7 +955,7 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc)
return IRQ_HANDLED;
}
-struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev)
+int tilcdc_crtc_create(struct drm_device *dev)
{
struct tilcdc_drm_private *priv = dev->dev_private;
struct tilcdc_crtc *tilcdc_crtc;
@@ -795,21 +965,33 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev)
tilcdc_crtc = devm_kzalloc(dev->dev, sizeof(*tilcdc_crtc), GFP_KERNEL);
if (!tilcdc_crtc) {
dev_err(dev->dev, "allocation failed\n");
- return NULL;
+ return -ENOMEM;
}
+ init_completion(&tilcdc_crtc->palette_loaded);
+ tilcdc_crtc->palette_base = dmam_alloc_coherent(dev->dev,
+ TILCDC_PALETTE_SIZE,
+ &tilcdc_crtc->palette_dma_handle,
+ GFP_KERNEL | __GFP_ZERO);
+ if (!tilcdc_crtc->palette_base)
+ return -ENOMEM;
+ *tilcdc_crtc->palette_base = TILCDC_PALETTE_FIRST_ENTRY;
+
crtc = &tilcdc_crtc->base;
ret = tilcdc_plane_init(dev, &tilcdc_crtc->primary);
if (ret < 0)
goto fail;
+ mutex_init(&tilcdc_crtc->enable_lock);
+
init_waitqueue_head(&tilcdc_crtc->frame_done_wq);
drm_flip_work_init(&tilcdc_crtc->unref_work,
"unref", unref_worker);
spin_lock_init(&tilcdc_crtc->irq_lock);
+ INIT_WORK(&tilcdc_crtc->recover_work, tilcdc_crtc_recover_work);
ret = drm_crtc_init_with_planes(dev, crtc,
&tilcdc_crtc->primary,
@@ -835,13 +1017,15 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev)
if (!crtc->port) { /* This should never happen */
dev_err(dev->dev, "Port node not found in %s\n",
dev->dev->of_node->full_name);
+ ret = -EINVAL;
goto fail;
}
}
- return crtc;
+ priv->crtc = crtc;
+ return 0;
fail:
tilcdc_crtc_destroy(crtc);
- return NULL;
+ return -ENOMEM;
}
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 0f58a74f25d1..bd0a3bd07167 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -127,18 +127,12 @@ static int tilcdc_commit(struct drm_device *dev,
* current layout.
*/
- /* Keep HW on while we commit the state. */
- pm_runtime_get_sync(dev->dev);
-
drm_atomic_helper_commit_modeset_disables(dev, state);
drm_atomic_helper_commit_planes(dev, state, 0);
drm_atomic_helper_commit_modeset_enables(dev, state);
- /* Now HW should remain on if need becase the crtc is enabled */
- pm_runtime_put_sync(dev->dev);
-
drm_atomic_helper_wait_for_vblanks(dev, state);
drm_atomic_helper_cleanup_planes(dev, state);
@@ -153,15 +147,11 @@ static const struct drm_mode_config_funcs mode_config_funcs = {
.atomic_commit = tilcdc_commit,
};
-static int modeset_init(struct drm_device *dev)
+static void modeset_init(struct drm_device *dev)
{
struct tilcdc_drm_private *priv = dev->dev_private;
struct tilcdc_module *mod;
- drm_mode_config_init(dev);
-
- priv->crtc = tilcdc_crtc_create(dev);
-
list_for_each_entry(mod, &module_list, list) {
DBG("loading module: %s", mod->name);
mod->funcs->modeset_init(mod, dev);
@@ -172,8 +162,6 @@ static int modeset_init(struct drm_device *dev)
dev->mode_config.max_width = tilcdc_crtc_max_width(priv->crtc);
dev->mode_config.max_height = 2048;
dev->mode_config.funcs = &mode_config_funcs;
-
- return 0;
}
#ifdef CONFIG_CPU_FREQ
@@ -194,22 +182,29 @@ static int cpufreq_transition(struct notifier_block *nb,
* DRM operations:
*/
-static int tilcdc_unload(struct drm_device *dev)
+static void tilcdc_fini(struct drm_device *dev)
{
struct tilcdc_drm_private *priv = dev->dev_private;
- tilcdc_remove_external_encoders(dev);
+ if (priv->crtc)
+ tilcdc_crtc_shutdown(priv->crtc);
+
+ if (priv->is_registered)
+ drm_dev_unregister(dev);
- drm_fbdev_cma_fini(priv->fbdev);
drm_kms_helper_poll_fini(dev);
- drm_mode_config_cleanup(dev);
- drm_vblank_cleanup(dev);
+
+ if (priv->fbdev)
+ drm_fbdev_cma_fini(priv->fbdev);
drm_irq_uninstall(dev);
+ drm_mode_config_cleanup(dev);
+ tilcdc_remove_external_device(dev);
#ifdef CONFIG_CPU_FREQ
- cpufreq_unregister_notifier(&priv->freq_transition,
- CPUFREQ_TRANSITION_NOTIFIER);
+ if (priv->freq_transition.notifier_call)
+ cpufreq_unregister_notifier(&priv->freq_transition,
+ CPUFREQ_TRANSITION_NOTIFIER);
#endif
if (priv->clk)
@@ -218,61 +213,71 @@ static int tilcdc_unload(struct drm_device *dev)
if (priv->mmio)
iounmap(priv->mmio);
- flush_workqueue(priv->wq);
- destroy_workqueue(priv->wq);
+ if (priv->wq) {
+ flush_workqueue(priv->wq);
+ destroy_workqueue(priv->wq);
+ }
dev->dev_private = NULL;
pm_runtime_disable(dev->dev);
- return 0;
+ drm_dev_unref(dev);
}
-static int tilcdc_load(struct drm_device *dev, unsigned long flags)
+static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
{
- struct platform_device *pdev = dev->platformdev;
- struct device_node *node = pdev->dev.of_node;
+ struct drm_device *ddev;
+ struct platform_device *pdev = to_platform_device(dev);
+ struct device_node *node = dev->of_node;
struct tilcdc_drm_private *priv;
struct resource *res;
u32 bpp = 0;
int ret;
- priv = devm_kzalloc(dev->dev, sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
- dev_err(dev->dev, "failed to allocate private data\n");
+ dev_err(dev, "failed to allocate private data\n");
return -ENOMEM;
}
- dev->dev_private = priv;
+ ddev = drm_dev_alloc(ddrv, dev);
+ if (IS_ERR(ddev))
+ return PTR_ERR(ddev);
+
+ ddev->platformdev = pdev;
+ ddev->dev_private = priv;
+ platform_set_drvdata(pdev, ddev);
+ drm_mode_config_init(ddev);
priv->is_componentized =
- tilcdc_get_external_components(dev->dev, NULL) > 0;
+ tilcdc_get_external_components(dev, NULL) > 0;
priv->wq = alloc_ordered_workqueue("tilcdc", 0);
if (!priv->wq) {
ret = -ENOMEM;
- goto fail_unset_priv;
+ goto init_failed;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
- dev_err(dev->dev, "failed to get memory resource\n");
+ dev_err(dev, "failed to get memory resource\n");
ret = -EINVAL;
- goto fail_free_wq;
+ goto init_failed;
}
priv->mmio = ioremap_nocache(res->start, resource_size(res));
if (!priv->mmio) {
- dev_err(dev->dev, "failed to ioremap\n");
+ dev_err(dev, "failed to ioremap\n");
ret = -ENOMEM;
- goto fail_free_wq;
+ goto init_failed;
}
- priv->clk = clk_get(dev->dev, "fck");
+ priv->clk = clk_get(dev, "fck");
if (IS_ERR(priv->clk)) {
- dev_err(dev->dev, "failed to get functional clock\n");
+ dev_err(dev, "failed to get functional clock\n");
ret = -ENODEV;
- goto fail_iounmap;
+ goto init_failed;
}
#ifdef CONFIG_CPU_FREQ
@@ -280,8 +285,9 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
ret = cpufreq_register_notifier(&priv->freq_transition,
CPUFREQ_TRANSITION_NOTIFIER);
if (ret) {
- dev_err(dev->dev, "failed to register cpufreq notifier\n");
- goto fail_put_clk;
+ dev_err(dev, "failed to register cpufreq notifier\n");
+ priv->freq_transition.notifier_call = NULL;
+ goto init_failed;
}
#endif
@@ -290,22 +296,22 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
DBG("Maximum Bandwidth Value %d", priv->max_bandwidth);
- if (of_property_read_u32(node, "ti,max-width", &priv->max_width))
+ if (of_property_read_u32(node, "max-width", &priv->max_width))
priv->max_width = TILCDC_DEFAULT_MAX_WIDTH;
DBG("Maximum Horizontal Pixel Width Value %dpixels", priv->max_width);
- if (of_property_read_u32(node, "ti,max-pixelclock",
+ if (of_property_read_u32(node, "max-pixelclock",
&priv->max_pixelclock))
priv->max_pixelclock = TILCDC_DEFAULT_MAX_PIXELCLOCK;
DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock);
- pm_runtime_enable(dev->dev);
+ pm_runtime_enable(dev);
/* Determine LCD IP Version */
- pm_runtime_get_sync(dev->dev);
- switch (tilcdc_read(dev, LCDC_PID_REG)) {
+ pm_runtime_get_sync(dev);
+ switch (tilcdc_read(ddev, LCDC_PID_REG)) {
case 0x4c100102:
priv->rev = 1;
break;
@@ -314,14 +320,14 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
priv->rev = 2;
break;
default:
- dev_warn(dev->dev, "Unknown PID Reg value 0x%08x, "
- "defaulting to LCD revision 1\n",
- tilcdc_read(dev, LCDC_PID_REG));
+ dev_warn(dev, "Unknown PID Reg value 0x%08x, "
+ "defaulting to LCD revision 1\n",
+ tilcdc_read(ddev, LCDC_PID_REG));
priv->rev = 1;
break;
}
- pm_runtime_put_sync(dev->dev);
+ pm_runtime_put_sync(dev);
if (priv->rev == 1) {
DBG("Revision 1 LCDC supports only RGB565 format");
@@ -354,91 +360,67 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
}
}
- ret = modeset_init(dev);
+ ret = tilcdc_crtc_create(ddev);
if (ret < 0) {
- dev_err(dev->dev, "failed to initialize mode setting\n");
- goto fail_cpufreq_unregister;
+ dev_err(dev, "failed to create crtc\n");
+ goto init_failed;
}
-
- platform_set_drvdata(pdev, dev);
+ modeset_init(ddev);
if (priv->is_componentized) {
- ret = component_bind_all(dev->dev, dev);
+ ret = component_bind_all(dev, ddev);
if (ret < 0)
- goto fail_mode_config_cleanup;
+ goto init_failed;
- ret = tilcdc_add_external_encoders(dev);
+ ret = tilcdc_add_component_encoder(ddev);
if (ret < 0)
- goto fail_component_cleanup;
+ goto init_failed;
+ } else {
+ ret = tilcdc_attach_external_device(ddev);
+ if (ret)
+ goto init_failed;
}
- if ((priv->num_encoders == 0) || (priv->num_connectors == 0)) {
- dev_err(dev->dev, "no encoders/connectors found\n");
+ if (!priv->external_connector &&
+ ((priv->num_encoders == 0) || (priv->num_connectors == 0))) {
+ dev_err(dev, "no encoders/connectors found\n");
ret = -ENXIO;
- goto fail_external_cleanup;
+ goto init_failed;
}
- ret = drm_vblank_init(dev, 1);
+ ret = drm_vblank_init(ddev, 1);
if (ret < 0) {
- dev_err(dev->dev, "failed to initialize vblank\n");
- goto fail_external_cleanup;
+ dev_err(dev, "failed to initialize vblank\n");
+ goto init_failed;
}
- ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0));
+ ret = drm_irq_install(ddev, platform_get_irq(pdev, 0));
if (ret < 0) {
- dev_err(dev->dev, "failed to install IRQ handler\n");
- goto fail_vblank_cleanup;
+ dev_err(dev, "failed to install IRQ handler\n");
+ goto init_failed;
}
- drm_mode_config_reset(dev);
+ drm_mode_config_reset(ddev);
- priv->fbdev = drm_fbdev_cma_init(dev, bpp,
- dev->mode_config.num_crtc,
- dev->mode_config.num_connector);
+ priv->fbdev = drm_fbdev_cma_init(ddev, bpp,
+ ddev->mode_config.num_crtc,
+ ddev->mode_config.num_connector);
if (IS_ERR(priv->fbdev)) {
ret = PTR_ERR(priv->fbdev);
- goto fail_irq_uninstall;
+ goto init_failed;
}
- drm_kms_helper_poll_init(dev);
+ drm_kms_helper_poll_init(ddev);
- return 0;
-
-fail_irq_uninstall:
- drm_irq_uninstall(dev);
-
-fail_vblank_cleanup:
- drm_vblank_cleanup(dev);
-
-fail_component_cleanup:
- if (priv->is_componentized)
- component_unbind_all(dev->dev, dev);
-
-fail_mode_config_cleanup:
- drm_mode_config_cleanup(dev);
-
-fail_external_cleanup:
- tilcdc_remove_external_encoders(dev);
-
-fail_cpufreq_unregister:
- pm_runtime_disable(dev->dev);
-#ifdef CONFIG_CPU_FREQ
- cpufreq_unregister_notifier(&priv->freq_transition,
- CPUFREQ_TRANSITION_NOTIFIER);
-
-fail_put_clk:
-#endif
- clk_put(priv->clk);
-
-fail_iounmap:
- iounmap(priv->mmio);
+ ret = drm_dev_register(ddev, 0);
+ if (ret)
+ goto init_failed;
-fail_free_wq:
- flush_workqueue(priv->wq);
- destroy_workqueue(priv->wq);
+ priv->is_registered = true;
+ return 0;
-fail_unset_priv:
- dev->dev_private = NULL;
+init_failed:
+ tilcdc_fini(ddev);
return ret;
}
@@ -583,8 +565,6 @@ static const struct file_operations fops = {
static struct drm_driver tilcdc_driver = {
.driver_features = (DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET |
DRIVER_PRIME | DRIVER_ATOMIC),
- .load = tilcdc_load,
- .unload = tilcdc_unload,
.lastclose = tilcdc_lastclose,
.irq_handler = tilcdc_irq,
.get_vblank_counter = drm_vblank_no_hw_counter,
@@ -658,10 +638,9 @@ static const struct dev_pm_ops tilcdc_pm_ops = {
/*
* Platform driver:
*/
-
static int tilcdc_bind(struct device *dev)
{
- return drm_platform_init(&tilcdc_driver, to_platform_device(dev));
+ return tilcdc_init(&tilcdc_driver, dev);
}
static void tilcdc_unbind(struct device *dev)
@@ -672,7 +651,7 @@ static void tilcdc_unbind(struct device *dev)
if (!ddev->dev_private)
return;
- drm_put_dev(dev_get_drvdata(dev));
+ tilcdc_fini(dev_get_drvdata(dev));
}
static const struct component_master_ops tilcdc_comp_ops = {
@@ -695,7 +674,7 @@ static int tilcdc_pdev_probe(struct platform_device *pdev)
if (ret < 0)
return ret;
else if (ret == 0)
- return drm_platform_init(&tilcdc_driver, pdev);
+ return tilcdc_init(&tilcdc_driver, &pdev->dev);
else
return component_master_add_with_match(&pdev->dev,
&tilcdc_comp_ops,
@@ -710,7 +689,7 @@ static int tilcdc_pdev_remove(struct platform_device *pdev)
if (ret < 0)
return ret;
else if (ret == 0)
- drm_put_dev(platform_get_drvdata(pdev));
+ tilcdc_fini(platform_get_drvdata(pdev));
else
component_master_del(&pdev->dev, &tilcdc_comp_ops);
@@ -719,6 +698,7 @@ static int tilcdc_pdev_remove(struct platform_device *pdev)
static struct of_device_id tilcdc_of_match[] = {
{ .compatible = "ti,am33xx-tilcdc", },
+ { .compatible = "ti,da850-tilcdc", },
{ },
};
MODULE_DEVICE_TABLE(of, tilcdc_of_match);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
index 9780c37ec4cd..0e71daf5b5cb 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
@@ -33,6 +33,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_bridge.h>
/* Defaulting to pixel clock defined on AM335x */
#define TILCDC_DEFAULT_MAX_PIXELCLOCK 126000
@@ -87,8 +88,12 @@ struct tilcdc_drm_private {
unsigned int num_connectors;
struct drm_connector *connectors[8];
- const struct drm_connector_helper_funcs *connector_funcs[8];
+ struct drm_encoder *external_encoder;
+ struct drm_connector *external_connector;
+ const struct drm_connector_helper_funcs *connector_funcs;
+
+ bool is_registered;
bool is_componentized;
};
@@ -163,7 +168,7 @@ struct tilcdc_panel_info {
#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
-struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev);
+int tilcdc_crtc_create(struct drm_device *dev);
irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc);
void tilcdc_crtc_update_clk(struct drm_crtc *crtc);
void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc,
@@ -172,7 +177,7 @@ void tilcdc_crtc_set_simulate_vesa_sync(struct drm_crtc *crtc,
bool simulate_vesa_sync);
int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode *mode);
int tilcdc_crtc_max_width(struct drm_crtc *crtc);
-void tilcdc_crtc_disable(struct drm_crtc *crtc);
+void tilcdc_crtc_shutdown(struct drm_crtc *crtc);
int tilcdc_crtc_update_fb(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
index 06a4c584f3cb..c67d7cd7d57e 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
@@ -28,44 +28,50 @@ static const struct tilcdc_panel_info panel_info_tda998x = {
.raster_order = 0,
};
+static const struct tilcdc_panel_info panel_info_default = {
+ .ac_bias = 255,
+ .ac_bias_intrpt = 0,
+ .dma_burst_sz = 16,
+ .bpp = 16,
+ .fdd = 0x80,
+ .tft_alt_mode = 0,
+ .sync_edge = 0,
+ .sync_ctrl = 1,
+ .raster_order = 0,
+};
+
static int tilcdc_external_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct tilcdc_drm_private *priv = connector->dev->dev_private;
- int ret, i;
+ int ret;
ret = tilcdc_crtc_mode_valid(priv->crtc, mode);
if (ret != MODE_OK)
return ret;
- for (i = 0; i < priv->num_connectors &&
- priv->connectors[i] != connector; i++)
- ;
-
- BUG_ON(priv->connectors[i] != connector);
- BUG_ON(!priv->connector_funcs[i]);
+ BUG_ON(priv->external_connector != connector);
+ BUG_ON(!priv->connector_funcs);
/* If the connector has its own mode_valid call it. */
- if (!IS_ERR(priv->connector_funcs[i]) &&
- priv->connector_funcs[i]->mode_valid)
- return priv->connector_funcs[i]->mode_valid(connector, mode);
+ if (!IS_ERR(priv->connector_funcs) &&
+ priv->connector_funcs->mode_valid)
+ return priv->connector_funcs->mode_valid(connector, mode);
return MODE_OK;
}
-static int tilcdc_add_external_encoder(struct drm_device *dev,
- struct drm_connector *connector)
+static int tilcdc_add_external_connector(struct drm_device *dev,
+ struct drm_connector *connector)
{
struct tilcdc_drm_private *priv = dev->dev_private;
struct drm_connector_helper_funcs *connector_funcs;
- priv->connectors[priv->num_connectors] = connector;
- priv->encoders[priv->num_encoders++] = connector->encoder;
-
- /* Only tda998x is supported at the moment. */
- tilcdc_crtc_set_simulate_vesa_sync(priv->crtc, true);
- tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_tda998x);
+ /* There should never be more than one connector */
+ if (WARN_ON(priv->external_connector))
+ return -EINVAL;
+ priv->external_connector = connector;
connector_funcs = devm_kzalloc(dev->dev, sizeof(*connector_funcs),
GFP_KERNEL);
if (!connector_funcs)
@@ -78,56 +84,177 @@ static int tilcdc_add_external_encoder(struct drm_device *dev,
* everything else but use our own mode_valid() (above).
*/
if (connector->helper_private) {
- priv->connector_funcs[priv->num_connectors] =
- connector->helper_private;
- *connector_funcs = *priv->connector_funcs[priv->num_connectors];
+ priv->connector_funcs = connector->helper_private;
+ *connector_funcs = *priv->connector_funcs;
} else {
- priv->connector_funcs[priv->num_connectors] = ERR_PTR(-ENOENT);
+ priv->connector_funcs = ERR_PTR(-ENOENT);
}
connector_funcs->mode_valid = tilcdc_external_mode_valid;
drm_connector_helper_add(connector, connector_funcs);
- priv->num_connectors++;
- dev_dbg(dev->dev, "External encoder '%s' connected\n",
- connector->encoder->name);
+ dev_dbg(dev->dev, "External connector '%s' connected\n",
+ connector->name);
return 0;
}
-int tilcdc_add_external_encoders(struct drm_device *dev)
+static
+struct drm_connector *tilcdc_encoder_find_connector(struct drm_device *ddev,
+ struct drm_encoder *encoder)
{
- struct tilcdc_drm_private *priv = dev->dev_private;
struct drm_connector *connector;
- int num_internal_connectors = priv->num_connectors;
-
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- bool found = false;
- int i, ret;
-
- for (i = 0; i < num_internal_connectors; i++)
- if (connector == priv->connectors[i])
- found = true;
- if (!found) {
- ret = tilcdc_add_external_encoder(dev, connector);
- if (ret)
- return ret;
- }
+ int i;
+
+ list_for_each_entry(connector, &ddev->mode_config.connector_list, head)
+ for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++)
+ if (connector->encoder_ids[i] == encoder->base.id)
+ return connector;
+
+ dev_err(ddev->dev, "No connector found for %s encoder (id %d)\n",
+ encoder->name, encoder->base.id);
+
+ return NULL;
+}
+
+int tilcdc_add_component_encoder(struct drm_device *ddev)
+{
+ struct tilcdc_drm_private *priv = ddev->dev_private;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+
+ list_for_each_entry(encoder, &ddev->mode_config.encoder_list, head)
+ if (encoder->possible_crtcs & (1 << priv->crtc->index))
+ break;
+
+ if (!encoder) {
+ dev_err(ddev->dev, "%s: No suitable encoder found\n", __func__);
+ return -ENODEV;
}
- return 0;
+
+ connector = tilcdc_encoder_find_connector(ddev, encoder);
+
+ if (!connector)
+ return -ENODEV;
+
+ /* Only tda998x is supported at the moment. */
+ tilcdc_crtc_set_simulate_vesa_sync(priv->crtc, true);
+ tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_tda998x);
+
+ return tilcdc_add_external_connector(ddev, connector);
}
-void tilcdc_remove_external_encoders(struct drm_device *dev)
+void tilcdc_remove_external_device(struct drm_device *dev)
{
struct tilcdc_drm_private *priv = dev->dev_private;
- int i;
/* Restore the original helper functions, if any. */
- for (i = 0; i < priv->num_connectors; i++)
- if (IS_ERR(priv->connector_funcs[i]))
- drm_connector_helper_add(priv->connectors[i], NULL);
- else if (priv->connector_funcs[i])
- drm_connector_helper_add(priv->connectors[i],
- priv->connector_funcs[i]);
+ if (IS_ERR(priv->connector_funcs))
+ drm_connector_helper_add(priv->external_connector, NULL);
+ else if (priv->connector_funcs)
+ drm_connector_helper_add(priv->external_connector,
+ priv->connector_funcs);
+}
+
+static const struct drm_encoder_funcs tilcdc_external_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static
+int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge)
+{
+ struct tilcdc_drm_private *priv = ddev->dev_private;
+ struct drm_connector *connector;
+ int ret;
+
+ priv->external_encoder->possible_crtcs = BIT(0);
+ priv->external_encoder->bridge = bridge;
+ bridge->encoder = priv->external_encoder;
+
+ ret = drm_bridge_attach(ddev, bridge);
+ if (ret) {
+ dev_err(ddev->dev, "drm_bridge_attach() failed %d\n", ret);
+ return ret;
+ }
+
+ tilcdc_crtc_set_panel_info(priv->crtc, &panel_info_default);
+
+ connector = tilcdc_encoder_find_connector(ddev, priv->external_encoder);
+ if (!connector)
+ return -ENODEV;
+
+ ret = tilcdc_add_external_connector(ddev, connector);
+
+ return ret;
+}
+
+static int tilcdc_node_has_port(struct device_node *dev_node)
+{
+ struct device_node *node;
+
+ node = of_get_child_by_name(dev_node, "ports");
+ if (!node)
+ node = of_get_child_by_name(dev_node, "port");
+ if (!node)
+ return 0;
+ of_node_put(node);
+
+ return 1;
+}
+
+static
+struct device_node *tilcdc_get_remote_node(struct device_node *node)
+{
+ struct device_node *ep;
+ struct device_node *parent;
+
+ if (!tilcdc_node_has_port(node))
+ return NULL;
+
+ ep = of_graph_get_next_endpoint(node, NULL);
+ if (!ep)
+ return NULL;
+
+ parent = of_graph_get_remote_port_parent(ep);
+ of_node_put(ep);
+
+ return parent;
+}
+
+int tilcdc_attach_external_device(struct drm_device *ddev)
+{
+ struct tilcdc_drm_private *priv = ddev->dev_private;
+ struct device_node *remote_node;
+ struct drm_bridge *bridge;
+ int ret;
+
+ remote_node = tilcdc_get_remote_node(ddev->dev->of_node);
+ if (!remote_node)
+ return 0;
+
+ bridge = of_drm_find_bridge(remote_node);
+ of_node_put(remote_node);
+ if (!bridge)
+ return -EPROBE_DEFER;
+
+ priv->external_encoder = devm_kzalloc(ddev->dev,
+ sizeof(*priv->external_encoder),
+ GFP_KERNEL);
+ if (!priv->external_encoder)
+ return -ENOMEM;
+
+ ret = drm_encoder_init(ddev, priv->external_encoder,
+ &tilcdc_external_encoder_funcs,
+ DRM_MODE_ENCODER_NONE, NULL);
+ if (ret) {
+ dev_err(ddev->dev, "drm_encoder_init() failed %d\n", ret);
+ return ret;
+ }
+
+ ret = tilcdc_attach_bridge(ddev, bridge);
+ if (ret)
+ drm_encoder_cleanup(priv->external_encoder);
+
+ return ret;
}
static int dev_match_of(struct device *dev, void *data)
@@ -141,16 +268,10 @@ int tilcdc_get_external_components(struct device *dev,
struct device_node *node;
struct device_node *ep = NULL;
int count = 0;
+ int ret = 0;
- /* Avoid error print by of_graph_get_next_endpoint() if there
- * is no ports present.
- */
- node = of_get_child_by_name(dev->of_node, "ports");
- if (!node)
- node = of_get_child_by_name(dev->of_node, "port");
- if (!node)
+ if (!tilcdc_node_has_port(dev->of_node))
return 0;
- of_node_put(node);
while ((ep = of_graph_get_next_endpoint(dev->of_node, ep))) {
node = of_graph_get_remote_port_parent(ep);
@@ -160,17 +281,20 @@ int tilcdc_get_external_components(struct device *dev,
}
dev_dbg(dev, "Subdevice node '%s' found\n", node->name);
- if (match)
- drm_of_component_match_add(dev, match, dev_match_of,
- node);
- of_node_put(node);
- count++;
- }
- if (count > 1) {
- dev_err(dev, "Only one external encoder is supported\n");
- return -EINVAL;
+ if (of_device_is_compatible(node, "nxp,tda998x")) {
+ if (match)
+ drm_of_component_match_add(dev, match,
+ dev_match_of, node);
+ ret = 1;
+ }
+
+ of_node_put(node);
+ if (count++ > 1) {
+ dev_err(dev, "Only one port is supported\n");
+ return -EINVAL;
+ }
}
- return count;
+ return ret;
}
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.h b/drivers/gpu/drm/tilcdc/tilcdc_external.h
index c700e0c1623e..763d18f006c7 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.h
@@ -18,8 +18,9 @@
#ifndef __TILCDC_EXTERNAL_H__
#define __TILCDC_EXTERNAL_H__
-int tilcdc_add_external_encoders(struct drm_device *dev);
-void tilcdc_remove_external_encoders(struct drm_device *dev);
+int tilcdc_add_component_encoder(struct drm_device *dev);
+void tilcdc_remove_external_device(struct drm_device *dev);
int tilcdc_get_external_components(struct device *dev,
struct component_match **match);
+int tilcdc_attach_external_device(struct drm_device *ddev);
#endif /* __TILCDC_SLAVE_H__ */
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
index 2134bb20fbe9..ad7a0e8ea5f4 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
@@ -240,8 +240,6 @@ static struct drm_connector *panel_connector_create(struct drm_device *dev,
if (ret)
goto fail;
- drm_connector_register(connector);
-
return connector;
fail:
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_regs.h b/drivers/gpu/drm/tilcdc/tilcdc_regs.h
index f57c0d62c76a..9d528c0a67a4 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_regs.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_regs.h
@@ -34,11 +34,14 @@
/* LCDC DMA Control Register */
#define LCDC_DMA_BURST_SIZE(x) ((x) << 4)
+#define LCDC_DMA_BURST_SIZE_MASK ((0x7) << 4)
#define LCDC_DMA_BURST_1 0x0
#define LCDC_DMA_BURST_2 0x1
#define LCDC_DMA_BURST_4 0x2
#define LCDC_DMA_BURST_8 0x3
#define LCDC_DMA_BURST_16 0x4
+#define LCDC_DMA_FIFO_THRESHOLD(x) ((x) << 8)
+#define LCDC_DMA_FIFO_THRESHOLD_MASK ((0x3) << 8)
#define LCDC_V1_END_OF_FRAME_INT_ENA BIT(2)
#define LCDC_V2_END_OF_FRAME0_INT_ENA BIT(8)
#define LCDC_V2_END_OF_FRAME1_INT_ENA BIT(9)
@@ -46,10 +49,12 @@
/* LCDC Control Register */
#define LCDC_CLK_DIVISOR(x) ((x) << 8)
+#define LCDC_CLK_DIVISOR_MASK ((0xFF) << 8)
#define LCDC_RASTER_MODE 0x01
/* LCDC Raster Control Register */
#define LCDC_PALETTE_LOAD_MODE(x) ((x) << 20)
+#define LCDC_PALETTE_LOAD_MODE_MASK ((0x3) << 20)
#define PALETTE_AND_DATA 0x00
#define PALETTE_ONLY 0x01
#define DATA_ONLY 0x02
@@ -61,6 +66,8 @@
#define LCDC_V2_UNDERFLOW_INT_ENA BIT(5)
#define LCDC_V1_PL_INT_ENA BIT(4)
#define LCDC_V2_PL_INT_ENA BIT(6)
+#define LCDC_V1_SYNC_LOST_INT_ENA BIT(5)
+#define LCDC_V1_FRAME_DONE_INT_ENA BIT(3)
#define LCDC_MONOCHROME_MODE BIT(1)
#define LCDC_RASTER_ENABLE BIT(0)
#define LCDC_TFT_ALT_ENABLE BIT(23)
@@ -74,7 +81,9 @@
/* LCDC Raster Timing 2 Register */
#define LCDC_AC_BIAS_TRANSITIONS_PER_INT(x) ((x) << 16)
+#define LCDC_AC_BIAS_TRANSITIONS_PER_INT_MASK ((0xF) << 16)
#define LCDC_AC_BIAS_FREQUENCY(x) ((x) << 8)
+#define LCDC_AC_BIAS_FREQUENCY_MASK ((0xFF) << 8)
#define LCDC_SYNC_CTRL BIT(25)
#define LCDC_SYNC_EDGE BIT(24)
#define LCDC_INVERT_PIXEL_CLOCK BIT(22)
@@ -139,6 +148,12 @@ static inline u32 tilcdc_read(struct drm_device *dev, u32 reg)
return ioread32(priv->mmio + reg);
}
+static inline void tilcdc_write_mask(struct drm_device *dev, u32 reg,
+ u32 val, u32 mask)
+{
+ tilcdc_write(dev, reg, (tilcdc_read(dev, reg) & ~mask) | (val & mask));
+}
+
static inline void tilcdc_set(struct drm_device *dev, u32 reg, u32 mask)
{
tilcdc_write(dev, reg, tilcdc_read(dev, reg) | mask);
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
index 458043a53995..aabfad882e23 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
@@ -249,8 +249,6 @@ static struct drm_connector *tfp410_connector_create(struct drm_device *dev,
if (ret)
goto fail;
- drm_connector_register(connector);
-
return connector;
fail:
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-27 10:21:12 +0000