ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/Kconfig b/marvell/linux/drivers/gpu/drm/omapdrm/displays/Kconfig
new file mode 100644
index 0000000..240dda1
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/Kconfig
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "OMAPDRM External Display Device Drivers"
+
+config DRM_OMAP_ENCODER_OPA362
+ tristate "OPA362 external analog amplifier"
+ help
+ Driver for OPA362 external analog TV amplifier controlled
+ through a GPIO.
+
+config DRM_OMAP_ENCODER_TPD12S015
+ tristate "TPD12S015 HDMI ESD protection and level shifter"
+ help
+ Driver for TPD12S015, which offers HDMI ESD protection and level
+ shifting.
+
+config DRM_OMAP_CONNECTOR_HDMI
+ tristate "HDMI Connector"
+ help
+ Driver for a generic HDMI connector.
+
+config DRM_OMAP_CONNECTOR_ANALOG_TV
+ tristate "Analog TV Connector"
+ help
+ Driver for a generic analog TV connector.
+
+config DRM_OMAP_PANEL_DSI_CM
+ tristate "Generic DSI Command Mode Panel"
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Driver for generic DSI command mode panels.
+
+endmenu
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/Makefile b/marvell/linux/drivers/gpu/drm/omapdrm/displays/Makefile
new file mode 100644
index 0000000..cb76859
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_DRM_OMAP_ENCODER_OPA362) += encoder-opa362.o
+obj-$(CONFIG_DRM_OMAP_ENCODER_TPD12S015) += encoder-tpd12s015.o
+obj-$(CONFIG_DRM_OMAP_CONNECTOR_HDMI) += connector-hdmi.o
+obj-$(CONFIG_DRM_OMAP_CONNECTOR_ANALOG_TV) += connector-analog-tv.o
+obj-$(CONFIG_DRM_OMAP_PANEL_DSI_CM) += panel-dsi-cm.o
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
new file mode 100644
index 0000000..0d20fab
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Analog TV Connector driver
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+
+#include "../dss/omapdss.h"
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+
+ struct device *dev;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int tvc_connect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ return 0;
+}
+
+static void tvc_disconnect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+}
+
+static const struct omap_dss_device_ops tvc_ops = {
+ .connect = tvc_connect,
+ .disconnect = tvc_disconnect,
+};
+
+static int tvc_probe(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata;
+ struct omap_dss_device *dssdev;
+
+ ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ddata);
+ ddata->dev = &pdev->dev;
+
+ dssdev = &ddata->dssdev;
+ dssdev->ops = &tvc_ops;
+ dssdev->dev = &pdev->dev;
+ dssdev->type = OMAP_DISPLAY_TYPE_VENC;
+ dssdev->display = true;
+ dssdev->owner = THIS_MODULE;
+ dssdev->of_ports = BIT(0);
+
+ omapdss_display_init(dssdev);
+ omapdss_device_register(dssdev);
+
+ return 0;
+}
+
+static int __exit tvc_remove(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+
+ omapdss_device_unregister(&ddata->dssdev);
+
+ return 0;
+}
+
+static const struct of_device_id tvc_of_match[] = {
+ { .compatible = "omapdss,svideo-connector", },
+ { .compatible = "omapdss,composite-video-connector", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, tvc_of_match);
+
+static struct platform_driver tvc_connector_driver = {
+ .probe = tvc_probe,
+ .remove = __exit_p(tvc_remove),
+ .driver = {
+ .name = "connector-analog-tv",
+ .of_match_table = tvc_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+module_platform_driver(tvc_connector_driver);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("Analog TV Connector driver");
+MODULE_LICENSE("GPL");
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
new file mode 100644
index 0000000..f5d69d8
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * HDMI Connector driver
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "../dss/omapdss.h"
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+ void (*hpd_cb)(void *cb_data, enum drm_connector_status status);
+ void *hpd_cb_data;
+ struct mutex hpd_lock;
+
+ struct device *dev;
+
+ struct gpio_desc *hpd_gpio;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int hdmic_connect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ return 0;
+}
+
+static void hdmic_disconnect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+}
+
+static bool hdmic_detect(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ return gpiod_get_value_cansleep(ddata->hpd_gpio);
+}
+
+static void hdmic_register_hpd_cb(struct omap_dss_device *dssdev,
+ void (*cb)(void *cb_data,
+ enum drm_connector_status status),
+ void *cb_data)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ mutex_lock(&ddata->hpd_lock);
+ ddata->hpd_cb = cb;
+ ddata->hpd_cb_data = cb_data;
+ mutex_unlock(&ddata->hpd_lock);
+}
+
+static void hdmic_unregister_hpd_cb(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ mutex_lock(&ddata->hpd_lock);
+ ddata->hpd_cb = NULL;
+ ddata->hpd_cb_data = NULL;
+ mutex_unlock(&ddata->hpd_lock);
+}
+
+static const struct omap_dss_device_ops hdmic_ops = {
+ .connect = hdmic_connect,
+ .disconnect = hdmic_disconnect,
+
+ .detect = hdmic_detect,
+ .register_hpd_cb = hdmic_register_hpd_cb,
+ .unregister_hpd_cb = hdmic_unregister_hpd_cb,
+};
+
+static irqreturn_t hdmic_hpd_isr(int irq, void *data)
+{
+ struct panel_drv_data *ddata = data;
+
+ mutex_lock(&ddata->hpd_lock);
+ if (ddata->hpd_cb) {
+ enum drm_connector_status status;
+
+ if (hdmic_detect(&ddata->dssdev))
+ status = connector_status_connected;
+ else
+ status = connector_status_disconnected;
+
+ ddata->hpd_cb(ddata->hpd_cb_data, status);
+ }
+ mutex_unlock(&ddata->hpd_lock);
+
+ return IRQ_HANDLED;
+}
+
+static int hdmic_probe(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata;
+ struct omap_dss_device *dssdev;
+ struct gpio_desc *gpio;
+ int r;
+
+ ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ddata);
+ ddata->dev = &pdev->dev;
+
+ mutex_init(&ddata->hpd_lock);
+
+ /* HPD GPIO */
+ gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN);
+ if (IS_ERR(gpio)) {
+ dev_err(&pdev->dev, "failed to parse HPD gpio\n");
+ return PTR_ERR(gpio);
+ }
+
+ ddata->hpd_gpio = gpio;
+
+ if (ddata->hpd_gpio) {
+ r = devm_request_threaded_irq(&pdev->dev,
+ gpiod_to_irq(ddata->hpd_gpio),
+ NULL, hdmic_hpd_isr,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ "hdmic hpd", ddata);
+ if (r)
+ return r;
+ }
+
+ dssdev = &ddata->dssdev;
+ dssdev->ops = &hdmic_ops;
+ dssdev->dev = &pdev->dev;
+ dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
+ dssdev->display = true;
+ dssdev->owner = THIS_MODULE;
+ dssdev->of_ports = BIT(0);
+ dssdev->ops_flags = ddata->hpd_gpio
+ ? OMAP_DSS_DEVICE_OP_DETECT | OMAP_DSS_DEVICE_OP_HPD
+ : 0;
+
+ omapdss_display_init(dssdev);
+ omapdss_device_register(dssdev);
+
+ return 0;
+}
+
+static int __exit hdmic_remove(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+
+ omapdss_device_unregister(&ddata->dssdev);
+
+ return 0;
+}
+
+static const struct of_device_id hdmic_of_match[] = {
+ { .compatible = "omapdss,hdmi-connector", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, hdmic_of_match);
+
+static struct platform_driver hdmi_connector_driver = {
+ .probe = hdmic_probe,
+ .remove = __exit_p(hdmic_remove),
+ .driver = {
+ .name = "connector-hdmi",
+ .of_match_table = hdmic_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+module_platform_driver(hdmi_connector_driver);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("HDMI Connector driver");
+MODULE_LICENSE("GPL");
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c b/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c
new file mode 100644
index 0000000..b992387
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OPA362 analog video amplifier with output/power control
+ *
+ * Copyright (C) 2014 Golden Delicious Computers
+ * Author: H. Nikolaus Schaller <hns@goldelico.com>
+ *
+ * based on encoder-tfp410
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "../dss/omapdss.h"
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+
+ struct gpio_desc *enable_gpio;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int opa362_connect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ return omapdss_device_connect(dst->dss, dst, dst->next);
+}
+
+static void opa362_disconnect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ omapdss_device_disconnect(dst, dst->next);
+}
+
+static void opa362_enable(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ if (ddata->enable_gpio)
+ gpiod_set_value_cansleep(ddata->enable_gpio, 1);
+}
+
+static void opa362_disable(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ if (ddata->enable_gpio)
+ gpiod_set_value_cansleep(ddata->enable_gpio, 0);
+}
+
+static const struct omap_dss_device_ops opa362_ops = {
+ .connect = opa362_connect,
+ .disconnect = opa362_disconnect,
+ .enable = opa362_enable,
+ .disable = opa362_disable,
+};
+
+static int opa362_probe(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata;
+ struct omap_dss_device *dssdev;
+ struct gpio_desc *gpio;
+
+ dev_dbg(&pdev->dev, "probe\n");
+
+ ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ddata);
+
+ gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ ddata->enable_gpio = gpio;
+
+ dssdev = &ddata->dssdev;
+ dssdev->ops = &opa362_ops;
+ dssdev->dev = &pdev->dev;
+ dssdev->type = OMAP_DISPLAY_TYPE_VENC;
+ dssdev->owner = THIS_MODULE;
+ dssdev->of_ports = BIT(1) | BIT(0);
+
+ dssdev->next = omapdss_of_find_connected_device(pdev->dev.of_node, 1);
+ if (IS_ERR(dssdev->next)) {
+ if (PTR_ERR(dssdev->next) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "failed to find video sink\n");
+ return PTR_ERR(dssdev->next);
+ }
+
+ omapdss_device_register(dssdev);
+
+ return 0;
+}
+
+static int __exit opa362_remove(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct omap_dss_device *dssdev = &ddata->dssdev;
+
+ if (dssdev->next)
+ omapdss_device_put(dssdev->next);
+ omapdss_device_unregister(&ddata->dssdev);
+
+ opa362_disable(dssdev);
+
+ return 0;
+}
+
+static const struct of_device_id opa362_of_match[] = {
+ { .compatible = "omapdss,ti,opa362", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, opa362_of_match);
+
+static struct platform_driver opa362_driver = {
+ .probe = opa362_probe,
+ .remove = __exit_p(opa362_remove),
+ .driver = {
+ .name = "amplifier-opa362",
+ .of_match_table = opa362_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+module_platform_driver(opa362_driver);
+
+MODULE_AUTHOR("H. Nikolaus Schaller <hns@goldelico.com>");
+MODULE_DESCRIPTION("OPA362 analog video amplifier with output/power control");
+MODULE_LICENSE("GPL v2");
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c b/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
new file mode 100644
index 0000000..089105c
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/encoder-tpd12s015.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * TPD12S015 HDMI ESD protection & level shifter chip driver
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ */
+
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mutex.h>
+
+#include "../dss/omapdss.h"
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+ void (*hpd_cb)(void *cb_data, enum drm_connector_status status);
+ void *hpd_cb_data;
+ struct mutex hpd_lock;
+
+ struct gpio_desc *ct_cp_hpd_gpio;
+ struct gpio_desc *ls_oe_gpio;
+ struct gpio_desc *hpd_gpio;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int tpd_connect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dst);
+ int r;
+
+ r = omapdss_device_connect(dst->dss, dst, dst->next);
+ if (r)
+ return r;
+
+ gpiod_set_value_cansleep(ddata->ct_cp_hpd_gpio, 1);
+ gpiod_set_value_cansleep(ddata->ls_oe_gpio, 1);
+
+ /* DC-DC converter needs at max 300us to get to 90% of 5V */
+ udelay(300);
+
+ return 0;
+}
+
+static void tpd_disconnect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dst);
+
+ gpiod_set_value_cansleep(ddata->ct_cp_hpd_gpio, 0);
+ gpiod_set_value_cansleep(ddata->ls_oe_gpio, 0);
+
+ omapdss_device_disconnect(dst, dst->next);
+}
+
+static bool tpd_detect(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ return gpiod_get_value_cansleep(ddata->hpd_gpio);
+}
+
+static void tpd_register_hpd_cb(struct omap_dss_device *dssdev,
+ void (*cb)(void *cb_data,
+ enum drm_connector_status status),
+ void *cb_data)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ mutex_lock(&ddata->hpd_lock);
+ ddata->hpd_cb = cb;
+ ddata->hpd_cb_data = cb_data;
+ mutex_unlock(&ddata->hpd_lock);
+}
+
+static void tpd_unregister_hpd_cb(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ mutex_lock(&ddata->hpd_lock);
+ ddata->hpd_cb = NULL;
+ ddata->hpd_cb_data = NULL;
+ mutex_unlock(&ddata->hpd_lock);
+}
+
+static const struct omap_dss_device_ops tpd_ops = {
+ .connect = tpd_connect,
+ .disconnect = tpd_disconnect,
+ .detect = tpd_detect,
+ .register_hpd_cb = tpd_register_hpd_cb,
+ .unregister_hpd_cb = tpd_unregister_hpd_cb,
+};
+
+static irqreturn_t tpd_hpd_isr(int irq, void *data)
+{
+ struct panel_drv_data *ddata = data;
+
+ mutex_lock(&ddata->hpd_lock);
+ if (ddata->hpd_cb) {
+ enum drm_connector_status status;
+
+ if (tpd_detect(&ddata->dssdev))
+ status = connector_status_connected;
+ else
+ status = connector_status_disconnected;
+
+ ddata->hpd_cb(ddata->hpd_cb_data, status);
+ }
+ mutex_unlock(&ddata->hpd_lock);
+
+ return IRQ_HANDLED;
+}
+
+static int tpd_probe(struct platform_device *pdev)
+{
+ struct omap_dss_device *dssdev;
+ struct panel_drv_data *ddata;
+ int r;
+ struct gpio_desc *gpio;
+
+ ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ddata);
+
+ gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 0,
+ GPIOD_OUT_LOW);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ ddata->ct_cp_hpd_gpio = gpio;
+
+ gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 1,
+ GPIOD_OUT_LOW);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ ddata->ls_oe_gpio = gpio;
+
+ gpio = devm_gpiod_get_index(&pdev->dev, NULL, 2,
+ GPIOD_IN);
+ if (IS_ERR(gpio))
+ return PTR_ERR(gpio);
+
+ ddata->hpd_gpio = gpio;
+
+ mutex_init(&ddata->hpd_lock);
+
+ r = devm_request_threaded_irq(&pdev->dev, gpiod_to_irq(ddata->hpd_gpio),
+ NULL, tpd_hpd_isr,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "tpd12s015 hpd", ddata);
+ if (r)
+ return r;
+
+ dssdev = &ddata->dssdev;
+ dssdev->ops = &tpd_ops;
+ dssdev->dev = &pdev->dev;
+ dssdev->type = OMAP_DISPLAY_TYPE_HDMI;
+ dssdev->owner = THIS_MODULE;
+ dssdev->of_ports = BIT(1) | BIT(0);
+ dssdev->ops_flags = OMAP_DSS_DEVICE_OP_DETECT
+ | OMAP_DSS_DEVICE_OP_HPD;
+
+ dssdev->next = omapdss_of_find_connected_device(pdev->dev.of_node, 1);
+ if (IS_ERR(dssdev->next)) {
+ if (PTR_ERR(dssdev->next) != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "failed to find video sink\n");
+ return PTR_ERR(dssdev->next);
+ }
+
+ omapdss_device_register(dssdev);
+
+ return 0;
+}
+
+static int __exit tpd_remove(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct omap_dss_device *dssdev = &ddata->dssdev;
+
+ if (dssdev->next)
+ omapdss_device_put(dssdev->next);
+ omapdss_device_unregister(&ddata->dssdev);
+
+ return 0;
+}
+
+static const struct of_device_id tpd_of_match[] = {
+ { .compatible = "omapdss,ti,tpd12s015", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, tpd_of_match);
+
+static struct platform_driver tpd_driver = {
+ .probe = tpd_probe,
+ .remove = __exit_p(tpd_remove),
+ .driver = {
+ .name = "tpd12s015",
+ .of_match_table = tpd_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+module_platform_driver(tpd_driver);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("TPD12S015 driver");
+MODULE_LICENSE("GPL");
diff --git a/marvell/linux/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/marvell/linux/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
new file mode 100644
index 0000000..564e3e1
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
@@ -0,0 +1,1387 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Generic DSI Command Mode panel driver
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ */
+
+/* #define DEBUG */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched/signal.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+
+#include <video/mipi_display.h>
+#include <video/of_display_timing.h>
+
+#include "../dss/omapdss.h"
+
+/* DSI Virtual channel. Hardcoded for now. */
+#define TCH 0
+
+#define DCS_READ_NUM_ERRORS 0x05
+#define DCS_BRIGHTNESS 0x51
+#define DCS_CTRL_DISPLAY 0x53
+#define DCS_GET_ID1 0xda
+#define DCS_GET_ID2 0xdb
+#define DCS_GET_ID3 0xdc
+
+struct panel_drv_data {
+ struct omap_dss_device dssdev;
+ struct omap_dss_device *src;
+
+ struct videomode vm;
+
+ struct platform_device *pdev;
+
+ struct mutex lock;
+
+ struct backlight_device *bldev;
+ struct backlight_device *extbldev;
+
+ unsigned long hw_guard_end; /* next value of jiffies when we can
+ * issue the next sleep in/out command
+ */
+ unsigned long hw_guard_wait; /* max guard time in jiffies */
+
+ /* panel HW configuration from DT or platform data */
+ struct gpio_desc *reset_gpio;
+ struct gpio_desc *ext_te_gpio;
+
+ struct regulator *vpnl;
+ struct regulator *vddi;
+
+ bool use_dsi_backlight;
+
+ int width_mm;
+ int height_mm;
+
+ struct omap_dsi_pin_config pin_config;
+
+ /* runtime variables */
+ bool enabled;
+
+ bool te_enabled;
+
+ atomic_t do_update;
+ int channel;
+
+ struct delayed_work te_timeout_work;
+
+ bool intro_printed;
+
+ struct workqueue_struct *workqueue;
+
+ bool ulps_enabled;
+ unsigned int ulps_timeout;
+ struct delayed_work ulps_work;
+};
+
+#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
+
+static irqreturn_t dsicm_te_isr(int irq, void *data);
+static void dsicm_te_timeout_work_callback(struct work_struct *work);
+static int _dsicm_enable_te(struct panel_drv_data *ddata, bool enable);
+
+static int dsicm_panel_reset(struct panel_drv_data *ddata);
+
+static void dsicm_ulps_work(struct work_struct *work);
+
+static void dsicm_bl_power(struct panel_drv_data *ddata, bool enable)
+{
+ struct backlight_device *backlight;
+
+ if (ddata->bldev)
+ backlight = ddata->bldev;
+ else if (ddata->extbldev)
+ backlight = ddata->extbldev;
+ else
+ return;
+
+ if (enable) {
+ backlight->props.fb_blank = FB_BLANK_UNBLANK;
+ backlight->props.state = ~(BL_CORE_FBBLANK | BL_CORE_SUSPENDED);
+ backlight->props.power = FB_BLANK_UNBLANK;
+ } else {
+ backlight->props.fb_blank = FB_BLANK_NORMAL;
+ backlight->props.power = FB_BLANK_POWERDOWN;
+ backlight->props.state |= BL_CORE_FBBLANK | BL_CORE_SUSPENDED;
+ }
+
+ backlight_update_status(backlight);
+}
+
+static void hw_guard_start(struct panel_drv_data *ddata, int guard_msec)
+{
+ ddata->hw_guard_wait = msecs_to_jiffies(guard_msec);
+ ddata->hw_guard_end = jiffies + ddata->hw_guard_wait;
+}
+
+static void hw_guard_wait(struct panel_drv_data *ddata)
+{
+ unsigned long wait = ddata->hw_guard_end - jiffies;
+
+ if ((long)wait > 0 && wait <= ddata->hw_guard_wait) {
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(wait);
+ }
+}
+
+static int dsicm_dcs_read_1(struct panel_drv_data *ddata, u8 dcs_cmd, u8 *data)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+ u8 buf[1];
+
+ r = src->ops->dsi.dcs_read(src, ddata->channel, dcs_cmd, buf, 1);
+
+ if (r < 0)
+ return r;
+
+ *data = buf[0];
+
+ return 0;
+}
+
+static int dsicm_dcs_write_0(struct panel_drv_data *ddata, u8 dcs_cmd)
+{
+ struct omap_dss_device *src = ddata->src;
+
+ return src->ops->dsi.dcs_write(src, ddata->channel, &dcs_cmd, 1);
+}
+
+static int dsicm_dcs_write_1(struct panel_drv_data *ddata, u8 dcs_cmd, u8 param)
+{
+ struct omap_dss_device *src = ddata->src;
+ u8 buf[2] = { dcs_cmd, param };
+
+ return src->ops->dsi.dcs_write(src, ddata->channel, buf, 2);
+}
+
+static int dsicm_sleep_in(struct panel_drv_data *ddata)
+
+{
+ struct omap_dss_device *src = ddata->src;
+ u8 cmd;
+ int r;
+
+ hw_guard_wait(ddata);
+
+ cmd = MIPI_DCS_ENTER_SLEEP_MODE;
+ r = src->ops->dsi.dcs_write_nosync(src, ddata->channel, &cmd, 1);
+ if (r)
+ return r;
+
+ hw_guard_start(ddata, 120);
+
+ usleep_range(5000, 10000);
+
+ return 0;
+}
+
+static int dsicm_sleep_out(struct panel_drv_data *ddata)
+{
+ int r;
+
+ hw_guard_wait(ddata);
+
+ r = dsicm_dcs_write_0(ddata, MIPI_DCS_EXIT_SLEEP_MODE);
+ if (r)
+ return r;
+
+ hw_guard_start(ddata, 120);
+
+ usleep_range(5000, 10000);
+
+ return 0;
+}
+
+static int dsicm_get_id(struct panel_drv_data *ddata, u8 *id1, u8 *id2, u8 *id3)
+{
+ int r;
+
+ r = dsicm_dcs_read_1(ddata, DCS_GET_ID1, id1);
+ if (r)
+ return r;
+ r = dsicm_dcs_read_1(ddata, DCS_GET_ID2, id2);
+ if (r)
+ return r;
+ r = dsicm_dcs_read_1(ddata, DCS_GET_ID3, id3);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int dsicm_set_update_window(struct panel_drv_data *ddata,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+ u16 x1 = x;
+ u16 x2 = x + w - 1;
+ u16 y1 = y;
+ u16 y2 = y + h - 1;
+
+ u8 buf[5];
+ buf[0] = MIPI_DCS_SET_COLUMN_ADDRESS;
+ buf[1] = (x1 >> 8) & 0xff;
+ buf[2] = (x1 >> 0) & 0xff;
+ buf[3] = (x2 >> 8) & 0xff;
+ buf[4] = (x2 >> 0) & 0xff;
+
+ r = src->ops->dsi.dcs_write_nosync(src, ddata->channel, buf, sizeof(buf));
+ if (r)
+ return r;
+
+ buf[0] = MIPI_DCS_SET_PAGE_ADDRESS;
+ buf[1] = (y1 >> 8) & 0xff;
+ buf[2] = (y1 >> 0) & 0xff;
+ buf[3] = (y2 >> 8) & 0xff;
+ buf[4] = (y2 >> 0) & 0xff;
+
+ r = src->ops->dsi.dcs_write_nosync(src, ddata->channel, buf, sizeof(buf));
+ if (r)
+ return r;
+
+ src->ops->dsi.bta_sync(src, ddata->channel);
+
+ return r;
+}
+
+static void dsicm_queue_ulps_work(struct panel_drv_data *ddata)
+{
+ if (ddata->ulps_timeout > 0)
+ queue_delayed_work(ddata->workqueue, &ddata->ulps_work,
+ msecs_to_jiffies(ddata->ulps_timeout));
+}
+
+static void dsicm_cancel_ulps_work(struct panel_drv_data *ddata)
+{
+ cancel_delayed_work(&ddata->ulps_work);
+}
+
+static int dsicm_enter_ulps(struct panel_drv_data *ddata)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ if (ddata->ulps_enabled)
+ return 0;
+
+ dsicm_cancel_ulps_work(ddata);
+
+ r = _dsicm_enable_te(ddata, false);
+ if (r)
+ goto err;
+
+ if (ddata->ext_te_gpio)
+ disable_irq(gpiod_to_irq(ddata->ext_te_gpio));
+
+ src->ops->dsi.disable(src, false, true);
+
+ ddata->ulps_enabled = true;
+
+ return 0;
+
+err:
+ dev_err(&ddata->pdev->dev, "enter ULPS failed");
+ dsicm_panel_reset(ddata);
+
+ ddata->ulps_enabled = false;
+
+ dsicm_queue_ulps_work(ddata);
+
+ return r;
+}
+
+static int dsicm_exit_ulps(struct panel_drv_data *ddata)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ if (!ddata->ulps_enabled)
+ return 0;
+
+ src->ops->enable(src);
+ src->ops->dsi.enable_hs(src, ddata->channel, true);
+
+ r = _dsicm_enable_te(ddata, true);
+ if (r) {
+ dev_err(&ddata->pdev->dev, "failed to re-enable TE");
+ goto err2;
+ }
+
+ if (ddata->ext_te_gpio)
+ enable_irq(gpiod_to_irq(ddata->ext_te_gpio));
+
+ dsicm_queue_ulps_work(ddata);
+
+ ddata->ulps_enabled = false;
+
+ return 0;
+
+err2:
+ dev_err(&ddata->pdev->dev, "failed to exit ULPS");
+
+ r = dsicm_panel_reset(ddata);
+ if (!r) {
+ if (ddata->ext_te_gpio)
+ enable_irq(gpiod_to_irq(ddata->ext_te_gpio));
+ ddata->ulps_enabled = false;
+ }
+
+ dsicm_queue_ulps_work(ddata);
+
+ return r;
+}
+
+static int dsicm_wake_up(struct panel_drv_data *ddata)
+{
+ if (ddata->ulps_enabled)
+ return dsicm_exit_ulps(ddata);
+
+ dsicm_cancel_ulps_work(ddata);
+ dsicm_queue_ulps_work(ddata);
+ return 0;
+}
+
+static int dsicm_bl_update_status(struct backlight_device *dev)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(&dev->dev);
+ struct omap_dss_device *src = ddata->src;
+ int r = 0;
+ int level;
+
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK)
+ level = dev->props.brightness;
+ else
+ level = 0;
+
+ dev_dbg(&ddata->pdev->dev, "update brightness to %d\n", level);
+
+ mutex_lock(&ddata->lock);
+
+ if (ddata->enabled) {
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (!r)
+ r = dsicm_dcs_write_1(ddata, DCS_BRIGHTNESS, level);
+
+ src->ops->dsi.bus_unlock(src);
+ }
+
+ mutex_unlock(&ddata->lock);
+
+ return r;
+}
+
+static int dsicm_bl_get_intensity(struct backlight_device *dev)
+{
+ if (dev->props.fb_blank == FB_BLANK_UNBLANK &&
+ dev->props.power == FB_BLANK_UNBLANK)
+ return dev->props.brightness;
+
+ return 0;
+}
+
+static const struct backlight_ops dsicm_bl_ops = {
+ .get_brightness = dsicm_bl_get_intensity,
+ .update_status = dsicm_bl_update_status,
+};
+
+static ssize_t dsicm_num_errors_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ struct omap_dss_device *src = ddata->src;
+ u8 errors = 0;
+ int r;
+
+ mutex_lock(&ddata->lock);
+
+ if (ddata->enabled) {
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (!r)
+ r = dsicm_dcs_read_1(ddata, DCS_READ_NUM_ERRORS,
+ &errors);
+
+ src->ops->dsi.bus_unlock(src);
+ } else {
+ r = -ENODEV;
+ }
+
+ mutex_unlock(&ddata->lock);
+
+ if (r)
+ return r;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", errors);
+}
+
+static ssize_t dsicm_hw_revision_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ struct omap_dss_device *src = ddata->src;
+ u8 id1, id2, id3;
+ int r;
+
+ mutex_lock(&ddata->lock);
+
+ if (ddata->enabled) {
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (!r)
+ r = dsicm_get_id(ddata, &id1, &id2, &id3);
+
+ src->ops->dsi.bus_unlock(src);
+ } else {
+ r = -ENODEV;
+ }
+
+ mutex_unlock(&ddata->lock);
+
+ if (r)
+ return r;
+
+ return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3);
+}
+
+static ssize_t dsicm_store_ulps(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ struct omap_dss_device *src = ddata->src;
+ unsigned long t;
+ int r;
+
+ r = kstrtoul(buf, 0, &t);
+ if (r)
+ return r;
+
+ mutex_lock(&ddata->lock);
+
+ if (ddata->enabled) {
+ src->ops->dsi.bus_lock(src);
+
+ if (t)
+ r = dsicm_enter_ulps(ddata);
+ else
+ r = dsicm_wake_up(ddata);
+
+ src->ops->dsi.bus_unlock(src);
+ }
+
+ mutex_unlock(&ddata->lock);
+
+ if (r)
+ return r;
+
+ return count;
+}
+
+static ssize_t dsicm_show_ulps(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ unsigned int t;
+
+ mutex_lock(&ddata->lock);
+ t = ddata->ulps_enabled;
+ mutex_unlock(&ddata->lock);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", t);
+}
+
+static ssize_t dsicm_store_ulps_timeout(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ struct omap_dss_device *src = ddata->src;
+ unsigned long t;
+ int r;
+
+ r = kstrtoul(buf, 0, &t);
+ if (r)
+ return r;
+
+ mutex_lock(&ddata->lock);
+ ddata->ulps_timeout = t;
+
+ if (ddata->enabled) {
+ /* dsicm_wake_up will restart the timer */
+ src->ops->dsi.bus_lock(src);
+ r = dsicm_wake_up(ddata);
+ src->ops->dsi.bus_unlock(src);
+ }
+
+ mutex_unlock(&ddata->lock);
+
+ if (r)
+ return r;
+
+ return count;
+}
+
+static ssize_t dsicm_show_ulps_timeout(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct panel_drv_data *ddata = dev_get_drvdata(dev);
+ unsigned int t;
+
+ mutex_lock(&ddata->lock);
+ t = ddata->ulps_timeout;
+ mutex_unlock(&ddata->lock);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", t);
+}
+
+static DEVICE_ATTR(num_dsi_errors, S_IRUGO, dsicm_num_errors_show, NULL);
+static DEVICE_ATTR(hw_revision, S_IRUGO, dsicm_hw_revision_show, NULL);
+static DEVICE_ATTR(ulps, S_IRUGO | S_IWUSR,
+ dsicm_show_ulps, dsicm_store_ulps);
+static DEVICE_ATTR(ulps_timeout, S_IRUGO | S_IWUSR,
+ dsicm_show_ulps_timeout, dsicm_store_ulps_timeout);
+
+static struct attribute *dsicm_attrs[] = {
+ &dev_attr_num_dsi_errors.attr,
+ &dev_attr_hw_revision.attr,
+ &dev_attr_ulps.attr,
+ &dev_attr_ulps_timeout.attr,
+ NULL,
+};
+
+static const struct attribute_group dsicm_attr_group = {
+ .attrs = dsicm_attrs,
+};
+
+static void dsicm_hw_reset(struct panel_drv_data *ddata)
+{
+ gpiod_set_value(ddata->reset_gpio, 1);
+ udelay(10);
+ /* reset the panel */
+ gpiod_set_value(ddata->reset_gpio, 0);
+ /* assert reset */
+ udelay(10);
+ gpiod_set_value(ddata->reset_gpio, 1);
+ /* wait after releasing reset */
+ usleep_range(5000, 10000);
+}
+
+static int dsicm_power_on(struct panel_drv_data *ddata)
+{
+ struct omap_dss_device *src = ddata->src;
+ u8 id1, id2, id3;
+ int r;
+ struct omap_dss_dsi_config dsi_config = {
+ .mode = OMAP_DSS_DSI_CMD_MODE,
+ .pixel_format = OMAP_DSS_DSI_FMT_RGB888,
+ .vm = &ddata->vm,
+ .hs_clk_min = 150000000,
+ .hs_clk_max = 300000000,
+ .lp_clk_min = 7000000,
+ .lp_clk_max = 10000000,
+ };
+
+ if (ddata->vpnl) {
+ r = regulator_enable(ddata->vpnl);
+ if (r) {
+ dev_err(&ddata->pdev->dev,
+ "failed to enable VPNL: %d\n", r);
+ return r;
+ }
+ }
+
+ if (ddata->vddi) {
+ r = regulator_enable(ddata->vddi);
+ if (r) {
+ dev_err(&ddata->pdev->dev,
+ "failed to enable VDDI: %d\n", r);
+ goto err_vpnl;
+ }
+ }
+
+ if (ddata->pin_config.num_pins > 0) {
+ r = src->ops->dsi.configure_pins(src, &ddata->pin_config);
+ if (r) {
+ dev_err(&ddata->pdev->dev,
+ "failed to configure DSI pins\n");
+ goto err_vddi;
+ }
+ }
+
+ r = src->ops->dsi.set_config(src, &dsi_config);
+ if (r) {
+ dev_err(&ddata->pdev->dev, "failed to configure DSI\n");
+ goto err_vddi;
+ }
+
+ src->ops->enable(src);
+
+ dsicm_hw_reset(ddata);
+
+ src->ops->dsi.enable_hs(src, ddata->channel, false);
+
+ r = dsicm_sleep_out(ddata);
+ if (r)
+ goto err;
+
+ r = dsicm_get_id(ddata, &id1, &id2, &id3);
+ if (r)
+ goto err;
+
+ r = dsicm_dcs_write_1(ddata, DCS_BRIGHTNESS, 0xff);
+ if (r)
+ goto err;
+
+ r = dsicm_dcs_write_1(ddata, DCS_CTRL_DISPLAY,
+ (1<<2) | (1<<5)); /* BL | BCTRL */
+ if (r)
+ goto err;
+
+ r = dsicm_dcs_write_1(ddata, MIPI_DCS_SET_PIXEL_FORMAT,
+ MIPI_DCS_PIXEL_FMT_24BIT);
+ if (r)
+ goto err;
+
+ r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_DISPLAY_ON);
+ if (r)
+ goto err;
+
+ r = _dsicm_enable_te(ddata, ddata->te_enabled);
+ if (r)
+ goto err;
+
+ r = src->ops->dsi.enable_video_output(src, ddata->channel);
+ if (r)
+ goto err;
+
+ ddata->enabled = 1;
+
+ if (!ddata->intro_printed) {
+ dev_info(&ddata->pdev->dev, "panel revision %02x.%02x.%02x\n",
+ id1, id2, id3);
+ ddata->intro_printed = true;
+ }
+
+ src->ops->dsi.enable_hs(src, ddata->channel, true);
+
+ return 0;
+err:
+ dev_err(&ddata->pdev->dev, "error while enabling panel, issuing HW reset\n");
+
+ dsicm_hw_reset(ddata);
+
+ src->ops->dsi.disable(src, true, false);
+err_vddi:
+ if (ddata->vddi)
+ regulator_disable(ddata->vddi);
+err_vpnl:
+ if (ddata->vpnl)
+ regulator_disable(ddata->vpnl);
+
+ return r;
+}
+
+static void dsicm_power_off(struct panel_drv_data *ddata)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ src->ops->dsi.disable_video_output(src, ddata->channel);
+
+ r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_DISPLAY_OFF);
+ if (!r)
+ r = dsicm_sleep_in(ddata);
+
+ if (r) {
+ dev_err(&ddata->pdev->dev,
+ "error disabling panel, issuing HW reset\n");
+ dsicm_hw_reset(ddata);
+ }
+
+ src->ops->dsi.disable(src, true, false);
+
+ if (ddata->vddi)
+ regulator_disable(ddata->vddi);
+ if (ddata->vpnl)
+ regulator_disable(ddata->vpnl);
+
+ ddata->enabled = 0;
+}
+
+static int dsicm_panel_reset(struct panel_drv_data *ddata)
+{
+ dev_err(&ddata->pdev->dev, "performing LCD reset\n");
+
+ dsicm_power_off(ddata);
+ dsicm_hw_reset(ddata);
+ return dsicm_power_on(ddata);
+}
+
+static int dsicm_connect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dst);
+ struct device *dev = &ddata->pdev->dev;
+ int r;
+
+ r = src->ops->dsi.request_vc(src, &ddata->channel);
+ if (r) {
+ dev_err(dev, "failed to get virtual channel\n");
+ return r;
+ }
+
+ r = src->ops->dsi.set_vc_id(src, ddata->channel, TCH);
+ if (r) {
+ dev_err(dev, "failed to set VC_ID\n");
+ src->ops->dsi.release_vc(src, ddata->channel);
+ return r;
+ }
+
+ ddata->src = src;
+ return 0;
+}
+
+static void dsicm_disconnect(struct omap_dss_device *src,
+ struct omap_dss_device *dst)
+{
+ struct panel_drv_data *ddata = to_panel_data(dst);
+
+ src->ops->dsi.release_vc(src, ddata->channel);
+ ddata->src = NULL;
+}
+
+static void dsicm_enable(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ mutex_lock(&ddata->lock);
+
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_power_on(ddata);
+
+ src->ops->dsi.bus_unlock(src);
+
+ if (r)
+ goto err;
+
+ mutex_unlock(&ddata->lock);
+
+ dsicm_bl_power(ddata, true);
+
+ return;
+err:
+ dev_dbg(&ddata->pdev->dev, "enable failed (%d)\n", r);
+ mutex_unlock(&ddata->lock);
+}
+
+static void dsicm_disable(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ dsicm_bl_power(ddata, false);
+
+ mutex_lock(&ddata->lock);
+
+ dsicm_cancel_ulps_work(ddata);
+
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (!r)
+ dsicm_power_off(ddata);
+
+ src->ops->dsi.bus_unlock(src);
+
+ mutex_unlock(&ddata->lock);
+}
+
+static void dsicm_framedone_cb(int err, void *data)
+{
+ struct panel_drv_data *ddata = data;
+ struct omap_dss_device *src = ddata->src;
+
+ dev_dbg(&ddata->pdev->dev, "framedone, err %d\n", err);
+ src->ops->dsi.bus_unlock(src);
+}
+
+static irqreturn_t dsicm_te_isr(int irq, void *data)
+{
+ struct panel_drv_data *ddata = data;
+ struct omap_dss_device *src = ddata->src;
+ int old;
+ int r;
+
+ old = atomic_cmpxchg(&ddata->do_update, 1, 0);
+
+ if (old) {
+ cancel_delayed_work(&ddata->te_timeout_work);
+
+ r = src->ops->dsi.update(src, ddata->channel, dsicm_framedone_cb,
+ ddata);
+ if (r)
+ goto err;
+ }
+
+ return IRQ_HANDLED;
+err:
+ dev_err(&ddata->pdev->dev, "start update failed\n");
+ src->ops->dsi.bus_unlock(src);
+ return IRQ_HANDLED;
+}
+
+static void dsicm_te_timeout_work_callback(struct work_struct *work)
+{
+ struct panel_drv_data *ddata = container_of(work, struct panel_drv_data,
+ te_timeout_work.work);
+ struct omap_dss_device *src = ddata->src;
+
+ dev_err(&ddata->pdev->dev, "TE not received for 250ms!\n");
+
+ atomic_set(&ddata->do_update, 0);
+ src->ops->dsi.bus_unlock(src);
+}
+
+static int dsicm_update(struct omap_dss_device *dssdev,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ dev_dbg(&ddata->pdev->dev, "update %d, %d, %d x %d\n", x, y, w, h);
+
+ mutex_lock(&ddata->lock);
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (r)
+ goto err;
+
+ if (!ddata->enabled) {
+ r = 0;
+ goto err;
+ }
+
+ /* XXX no need to send this every frame, but dsi break if not done */
+ r = dsicm_set_update_window(ddata, 0, 0, ddata->vm.hactive,
+ ddata->vm.vactive);
+ if (r)
+ goto err;
+
+ if (ddata->te_enabled && ddata->ext_te_gpio) {
+ schedule_delayed_work(&ddata->te_timeout_work,
+ msecs_to_jiffies(250));
+ atomic_set(&ddata->do_update, 1);
+ } else {
+ r = src->ops->dsi.update(src, ddata->channel, dsicm_framedone_cb,
+ ddata);
+ if (r)
+ goto err;
+ }
+
+ /* note: no bus_unlock here. unlock is src framedone_cb */
+ mutex_unlock(&ddata->lock);
+ return 0;
+err:
+ src->ops->dsi.bus_unlock(src);
+ mutex_unlock(&ddata->lock);
+ return r;
+}
+
+static int dsicm_sync(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+
+ dev_dbg(&ddata->pdev->dev, "sync\n");
+
+ mutex_lock(&ddata->lock);
+ src->ops->dsi.bus_lock(src);
+ src->ops->dsi.bus_unlock(src);
+ mutex_unlock(&ddata->lock);
+
+ dev_dbg(&ddata->pdev->dev, "sync done\n");
+
+ return 0;
+}
+
+static int _dsicm_enable_te(struct panel_drv_data *ddata, bool enable)
+{
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ if (enable)
+ r = dsicm_dcs_write_1(ddata, MIPI_DCS_SET_TEAR_ON, 0);
+ else
+ r = dsicm_dcs_write_0(ddata, MIPI_DCS_SET_TEAR_OFF);
+
+ if (!ddata->ext_te_gpio)
+ src->ops->dsi.enable_te(src, enable);
+
+ /* possible panel bug */
+ msleep(100);
+
+ return r;
+}
+
+static int dsicm_enable_te(struct omap_dss_device *dssdev, bool enable)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+ int r;
+
+ mutex_lock(&ddata->lock);
+
+ if (ddata->te_enabled == enable)
+ goto end;
+
+ src->ops->dsi.bus_lock(src);
+
+ if (ddata->enabled) {
+ r = dsicm_wake_up(ddata);
+ if (r)
+ goto err;
+
+ r = _dsicm_enable_te(ddata, enable);
+ if (r)
+ goto err;
+ }
+
+ ddata->te_enabled = enable;
+
+ src->ops->dsi.bus_unlock(src);
+end:
+ mutex_unlock(&ddata->lock);
+
+ return 0;
+err:
+ src->ops->dsi.bus_unlock(src);
+ mutex_unlock(&ddata->lock);
+
+ return r;
+}
+
+static int dsicm_get_te(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ int r;
+
+ mutex_lock(&ddata->lock);
+ r = ddata->te_enabled;
+ mutex_unlock(&ddata->lock);
+
+ return r;
+}
+
+static int dsicm_memory_read(struct omap_dss_device *dssdev,
+ void *buf, size_t size,
+ u16 x, u16 y, u16 w, u16 h)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ struct omap_dss_device *src = ddata->src;
+ int r;
+ int first = 1;
+ int plen;
+ unsigned int buf_used = 0;
+
+ if (size < w * h * 3)
+ return -ENOMEM;
+
+ mutex_lock(&ddata->lock);
+
+ if (!ddata->enabled) {
+ r = -ENODEV;
+ goto err1;
+ }
+
+ size = min((u32)w * h * 3,
+ ddata->vm.hactive * ddata->vm.vactive * 3);
+
+ src->ops->dsi.bus_lock(src);
+
+ r = dsicm_wake_up(ddata);
+ if (r)
+ goto err2;
+
+ /* plen 1 or 2 goes into short packet. until checksum error is fixed,
+ * use short packets. plen 32 works, but bigger packets seem to cause
+ * an error. */
+ if (size % 2)
+ plen = 1;
+ else
+ plen = 2;
+
+ dsicm_set_update_window(ddata, x, y, w, h);
+
+ r = src->ops->dsi.set_max_rx_packet_size(src, ddata->channel, plen);
+ if (r)
+ goto err2;
+
+ while (buf_used < size) {
+ u8 dcs_cmd = first ? 0x2e : 0x3e;
+ first = 0;
+
+ r = src->ops->dsi.dcs_read(src, ddata->channel, dcs_cmd,
+ buf + buf_used, size - buf_used);
+
+ if (r < 0) {
+ dev_err(dssdev->dev, "read error\n");
+ goto err3;
+ }
+
+ buf_used += r;
+
+ if (r < plen) {
+ dev_err(&ddata->pdev->dev, "short read\n");
+ break;
+ }
+
+ if (signal_pending(current)) {
+ dev_err(&ddata->pdev->dev, "signal pending, "
+ "aborting memory read\n");
+ r = -ERESTARTSYS;
+ goto err3;
+ }
+ }
+
+ r = buf_used;
+
+err3:
+ src->ops->dsi.set_max_rx_packet_size(src, ddata->channel, 1);
+err2:
+ src->ops->dsi.bus_unlock(src);
+err1:
+ mutex_unlock(&ddata->lock);
+ return r;
+}
+
+static void dsicm_ulps_work(struct work_struct *work)
+{
+ struct panel_drv_data *ddata = container_of(work, struct panel_drv_data,
+ ulps_work.work);
+ struct omap_dss_device *dssdev = &ddata->dssdev;
+ struct omap_dss_device *src = ddata->src;
+
+ mutex_lock(&ddata->lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE || !ddata->enabled) {
+ mutex_unlock(&ddata->lock);
+ return;
+ }
+
+ src->ops->dsi.bus_lock(src);
+
+ dsicm_enter_ulps(ddata);
+
+ src->ops->dsi.bus_unlock(src);
+ mutex_unlock(&ddata->lock);
+}
+
+static int dsicm_get_modes(struct omap_dss_device *dssdev,
+ struct drm_connector *connector)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ connector->display_info.width_mm = ddata->width_mm;
+ connector->display_info.height_mm = ddata->height_mm;
+
+ return omapdss_display_get_modes(connector, &ddata->vm);
+}
+
+static int dsicm_check_timings(struct omap_dss_device *dssdev,
+ struct drm_display_mode *mode)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ int ret = 0;
+
+ if (mode->hdisplay != ddata->vm.hactive)
+ ret = -EINVAL;
+
+ if (mode->vdisplay != ddata->vm.vactive)
+ ret = -EINVAL;
+
+ if (ret) {
+ dev_warn(dssdev->dev, "wrong resolution: %d x %d",
+ mode->hdisplay, mode->vdisplay);
+ dev_warn(dssdev->dev, "panel resolution: %d x %d",
+ ddata->vm.hactive, ddata->vm.vactive);
+ }
+
+ return ret;
+}
+
+static const struct omap_dss_device_ops dsicm_ops = {
+ .connect = dsicm_connect,
+ .disconnect = dsicm_disconnect,
+
+ .enable = dsicm_enable,
+ .disable = dsicm_disable,
+
+ .get_modes = dsicm_get_modes,
+ .check_timings = dsicm_check_timings,
+};
+
+static const struct omap_dss_driver dsicm_dss_driver = {
+ .update = dsicm_update,
+ .sync = dsicm_sync,
+
+ .enable_te = dsicm_enable_te,
+ .get_te = dsicm_get_te,
+
+ .memory_read = dsicm_memory_read,
+};
+
+static int dsicm_probe_of(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *backlight;
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct display_timing timing;
+ int err;
+
+ ddata->reset_gpio = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(ddata->reset_gpio)) {
+ err = PTR_ERR(ddata->reset_gpio);
+ dev_err(&pdev->dev, "reset gpio request failed: %d", err);
+ return err;
+ }
+
+ ddata->ext_te_gpio = devm_gpiod_get_optional(&pdev->dev, "te",
+ GPIOD_IN);
+ if (IS_ERR(ddata->ext_te_gpio)) {
+ err = PTR_ERR(ddata->ext_te_gpio);
+ dev_err(&pdev->dev, "TE gpio request failed: %d", err);
+ return err;
+ }
+
+ err = of_get_display_timing(node, "panel-timing", &timing);
+ if (!err) {
+ videomode_from_timing(&timing, &ddata->vm);
+ if (!ddata->vm.pixelclock)
+ ddata->vm.pixelclock =
+ ddata->vm.hactive * ddata->vm.vactive * 60;
+ } else {
+ dev_warn(&pdev->dev,
+ "failed to get video timing, using defaults\n");
+ }
+
+ ddata->width_mm = 0;
+ of_property_read_u32(node, "width-mm", &ddata->width_mm);
+
+ ddata->height_mm = 0;
+ of_property_read_u32(node, "height-mm", &ddata->height_mm);
+
+ ddata->vpnl = devm_regulator_get_optional(&pdev->dev, "vpnl");
+ if (IS_ERR(ddata->vpnl)) {
+ err = PTR_ERR(ddata->vpnl);
+ if (err == -EPROBE_DEFER)
+ return err;
+ ddata->vpnl = NULL;
+ }
+
+ ddata->vddi = devm_regulator_get_optional(&pdev->dev, "vddi");
+ if (IS_ERR(ddata->vddi)) {
+ err = PTR_ERR(ddata->vddi);
+ if (err == -EPROBE_DEFER)
+ return err;
+ ddata->vddi = NULL;
+ }
+
+ backlight = of_parse_phandle(node, "backlight", 0);
+ if (backlight) {
+ ddata->extbldev = of_find_backlight_by_node(backlight);
+ of_node_put(backlight);
+
+ if (!ddata->extbldev)
+ return -EPROBE_DEFER;
+ } else {
+ /* assume native backlight support */
+ ddata->use_dsi_backlight = true;
+ }
+
+ /* TODO: ulps */
+
+ return 0;
+}
+
+static int dsicm_probe(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata;
+ struct backlight_device *bldev = NULL;
+ struct device *dev = &pdev->dev;
+ struct omap_dss_device *dssdev;
+ int r;
+
+ dev_dbg(dev, "probe\n");
+
+ ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ddata);
+ ddata->pdev = pdev;
+
+ ddata->vm.hactive = 864;
+ ddata->vm.vactive = 480;
+ ddata->vm.pixelclock = 864 * 480 * 60;
+
+ r = dsicm_probe_of(pdev);
+ if (r)
+ return r;
+
+ dssdev = &ddata->dssdev;
+ dssdev->dev = dev;
+ dssdev->ops = &dsicm_ops;
+ dssdev->driver = &dsicm_dss_driver;
+ dssdev->type = OMAP_DISPLAY_TYPE_DSI;
+ dssdev->display = true;
+ dssdev->owner = THIS_MODULE;
+ dssdev->of_ports = BIT(0);
+ dssdev->ops_flags = OMAP_DSS_DEVICE_OP_MODES;
+
+ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
+ OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
+
+ omapdss_display_init(dssdev);
+ omapdss_device_register(dssdev);
+
+ mutex_init(&ddata->lock);
+
+ atomic_set(&ddata->do_update, 0);
+
+ if (ddata->ext_te_gpio) {
+ r = devm_request_irq(dev, gpiod_to_irq(ddata->ext_te_gpio),
+ dsicm_te_isr,
+ IRQF_TRIGGER_RISING,
+ "taal vsync", ddata);
+
+ if (r) {
+ dev_err(dev, "IRQ request failed\n");
+ goto err_reg;
+ }
+
+ INIT_DEFERRABLE_WORK(&ddata->te_timeout_work,
+ dsicm_te_timeout_work_callback);
+
+ dev_dbg(dev, "Using GPIO TE\n");
+ }
+
+ ddata->workqueue = create_singlethread_workqueue("dsicm_wq");
+ if (!ddata->workqueue) {
+ r = -ENOMEM;
+ goto err_reg;
+ }
+ INIT_DELAYED_WORK(&ddata->ulps_work, dsicm_ulps_work);
+
+ dsicm_hw_reset(ddata);
+
+ if (ddata->use_dsi_backlight) {
+ struct backlight_properties props = { 0 };
+ props.max_brightness = 255;
+ props.type = BACKLIGHT_RAW;
+
+ bldev = devm_backlight_device_register(dev, dev_name(dev),
+ dev, ddata, &dsicm_bl_ops, &props);
+ if (IS_ERR(bldev)) {
+ r = PTR_ERR(bldev);
+ goto err_bl;
+ }
+
+ ddata->bldev = bldev;
+ }
+
+ r = sysfs_create_group(&dev->kobj, &dsicm_attr_group);
+ if (r) {
+ dev_err(dev, "failed to create sysfs files\n");
+ goto err_bl;
+ }
+
+ return 0;
+
+err_bl:
+ destroy_workqueue(ddata->workqueue);
+err_reg:
+ if (ddata->extbldev)
+ put_device(&ddata->extbldev->dev);
+
+ return r;
+}
+
+static int __exit dsicm_remove(struct platform_device *pdev)
+{
+ struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+ struct omap_dss_device *dssdev = &ddata->dssdev;
+
+ dev_dbg(&pdev->dev, "remove\n");
+
+ omapdss_device_unregister(dssdev);
+
+ if (omapdss_device_is_enabled(dssdev))
+ dsicm_disable(dssdev);
+ omapdss_device_disconnect(ddata->src, dssdev);
+
+ sysfs_remove_group(&pdev->dev.kobj, &dsicm_attr_group);
+
+ if (ddata->extbldev)
+ put_device(&ddata->extbldev->dev);
+
+ dsicm_cancel_ulps_work(ddata);
+ destroy_workqueue(ddata->workqueue);
+
+ /* reset, to be sure that the panel is in a valid state */
+ dsicm_hw_reset(ddata);
+
+ return 0;
+}
+
+static const struct of_device_id dsicm_of_match[] = {
+ { .compatible = "omapdss,panel-dsi-cm", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, dsicm_of_match);
+
+static struct platform_driver dsicm_driver = {
+ .probe = dsicm_probe,
+ .remove = __exit_p(dsicm_remove),
+ .driver = {
+ .name = "panel-dsi-cm",
+ .of_match_table = dsicm_of_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+module_platform_driver(dsicm_driver);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("Generic DSI Command Mode Panel Driver");
+MODULE_LICENSE("GPL");