Convert TFP410 driver from omap_dss_driver to a platform driver. The
driver uses the new panel support from omapdss.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
drivers/video/omap2/displays/panel-tfp410.c | 205 +++++++++++++++++----------
1 file changed, 128 insertions(+), 77 deletions(-)
diff --git a/drivers/video/omap2/displays/panel-tfp410.c b/drivers/video/omap2/displays/panel-tfp410.c
index 8281baa..a225ea1 100644
--- a/drivers/video/omap2/displays/panel-tfp410.c
+++ b/drivers/video/omap2/displays/panel-tfp410.c
@@ -22,10 +22,13 @@
#include <video/omapdss.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
+#include <linux/platform_device.h>
#include <drm/drm_edid.h>
#include <video/omap-panel-tfp410.h>
+static struct omap_dss_driver tfp410_driver;
+
static const struct omap_video_timings tfp410_default_timings = {
.x_res = 640,
.y_res = 480,
@@ -48,121 +51,152 @@ static const struct omap_video_timings tfp410_default_timings = {
};
struct panel_drv_data {
- struct omap_dss_device *dssdev;
+ struct omap_dss_device dssdev;
struct mutex lock;
+ const char *name;
+
int pd_gpio;
+ int data_lines;
+
+ struct omap_video_timings timings;
struct i2c_adapter *i2c_adapter;
};
-static int tfp410_power_on(struct omap_dss_device *dssdev)
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int tfp410_probe_pdata(struct platform_device *pdev)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
- int r;
+ struct tfp410_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct panel_drv_data *ddata = dev_get_drvdata(&pdev->dev);
+ int r, gpio, i2c_bus_num;
- if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
- return 0;
+ ddata->name = pdata->name;
- omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings);
- omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines);
+ gpio = pdata->power_down_gpio;
- r = omapdss_dpi_display_enable(dssdev);
- if (r)
- goto err0;
+ if (gpio_is_valid(gpio)) {
+ r = devm_gpio_request_one(&pdev->dev, gpio,
+ GPIOF_OUT_INIT_LOW, "tfp410 pd");
+ if (r) {
+ dev_err(&pdev->dev, "Failed to request PD GPIO %d\n",
+ gpio);
+ return r;
+ }
- if (gpio_is_valid(ddata->pd_gpio))
- gpio_set_value_cansleep(ddata->pd_gpio, 1);
+ ddata->pd_gpio = gpio;
+ } else {
+ ddata->pd_gpio = -1;
+ }
- return 0;
-err0:
- return r;
-}
+ ddata->data_lines = pdata->data_lines;
-static void tfp410_power_off(struct omap_dss_device *dssdev)
-{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ i2c_bus_num = pdata->i2c_bus_num;
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return;
+ if (i2c_bus_num != -1) {
+ struct i2c_adapter *adapter;
- if (gpio_is_valid(ddata->pd_gpio))
- gpio_set_value_cansleep(ddata->pd_gpio, 0);
+ adapter = i2c_get_adapter(i2c_bus_num);
+ if (!adapter) {
+ dev_err(&pdev->dev,
+ "Failed to get I2C adapter, bus %d\n",
+ i2c_bus_num);
+ return -EINVAL;
+ }
- omapdss_dpi_display_disable(dssdev);
+ ddata->i2c_adapter = adapter;
+ }
+
+ return 0;
}
-static int tfp410_probe(struct omap_dss_device *dssdev)
+static int tfp410_probe(struct platform_device *pdev)
{
+ struct tfp410_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct omap_dss_device *dssdev;
struct panel_drv_data *ddata;
int r;
- int i2c_bus_num;
- ddata = devm_kzalloc(&dssdev->dev, sizeof(*ddata), GFP_KERNEL);
+ ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
- dssdev->panel.timings = tfp410_default_timings;
+ dev_set_drvdata(&pdev->dev, ddata);
- ddata->dssdev = dssdev;
mutex_init(&ddata->lock);
- if (dssdev->data) {
- struct tfp410_platform_data *pdata = dssdev->data;
-
- ddata->pd_gpio = pdata->power_down_gpio;
- i2c_bus_num = pdata->i2c_bus_num;
- } else {
- ddata->pd_gpio = -1;
- i2c_bus_num = -1;
- }
-
- if (gpio_is_valid(ddata->pd_gpio)) {
- r = devm_gpio_request_one(&dssdev->dev, ddata->pd_gpio,
- GPIOF_OUT_INIT_LOW, "tfp410 pd");
- if (r) {
- dev_err(&dssdev->dev, "Failed to request PD GPIO %d\n",
- ddata->pd_gpio);
+ if (pdata) {
+ r = tfp410_probe_pdata(pdev);
+ if (r)
return r;
- }
+ } else {
+ return -ENODEV;
}
- if (i2c_bus_num != -1) {
- struct i2c_adapter *adapter;
+ ddata->timings = tfp410_default_timings;
- adapter = i2c_get_adapter(i2c_bus_num);
- if (!adapter) {
- dev_err(&dssdev->dev, "Failed to get I2C adapter, bus %d\n",
- i2c_bus_num);
- return -EINVAL;
- }
-
- ddata->i2c_adapter = adapter;
+ dssdev = &ddata->dssdev;
+ dssdev->driver = &tfp410_driver;
+ dssdev->panel.timings = tfp410_default_timings;
+ dssdev->name = ddata->name;
+ dssdev->phy.dpi.data_lines = ddata->data_lines;
+ dssdev->panel_dev = &pdev->dev;
+
+ r = omap_dpi_register_panel(dssdev);
+ if (r) {
+ dev_err(&pdev->dev, "Failed to register panel\n");
+ return r;
}
- dev_set_drvdata(&dssdev->dev, ddata);
-
return 0;
}
-static void __exit tfp410_remove(struct omap_dss_device *dssdev)
+static int __exit tfp410_remove(struct platform_device *pdev)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = dev_get_drvdata(&pdev->dev);
mutex_lock(&ddata->lock);
+ omap_dpi_free_panel(&ddata->dssdev);
+
if (ddata->i2c_adapter)
i2c_put_adapter(ddata->i2c_adapter);
- dev_set_drvdata(&dssdev->dev, NULL);
+ dev_set_drvdata(&pdev->dev, NULL);
mutex_unlock(&ddata->lock);
+
+ return 0;
+}
+
+static int tfp410_power_on(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+ int r;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+ return 0;
+
+ omapdss_dpi_set_timings(dssdev, &ddata->timings);
+ omapdss_dpi_set_data_lines(dssdev, ddata->data_lines);
+
+ r = omapdss_dpi_display_enable(dssdev);
+ if (r)
+ goto err0;
+
+ if (gpio_is_valid(ddata->pd_gpio))
+ gpio_set_value_cansleep(ddata->pd_gpio, 1);
+
+ return 0;
+err0:
+ return r;
}
static int tfp410_enable(struct omap_dss_device *dssdev)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
int r;
mutex_lock(&ddata->lock);
@@ -176,9 +210,22 @@ static int tfp410_enable(struct omap_dss_device *dssdev)
return r;
}
+static void tfp410_power_off(struct omap_dss_device *dssdev)
+{
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+ return;
+
+ if (gpio_is_valid(ddata->pd_gpio))
+ gpio_set_value_cansleep(ddata->pd_gpio, 0);
+
+ omapdss_dpi_display_disable(dssdev);
+}
+
static void tfp410_disable(struct omap_dss_device *dssdev)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
mutex_lock(&ddata->lock);
@@ -192,18 +239,19 @@ static void tfp410_disable(struct omap_dss_device *dssdev)
static void tfp410_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
mutex_lock(&ddata->lock);
omapdss_dpi_set_timings(dssdev, timings);
dssdev->panel.timings = *timings;
+ ddata->timings = *timings;
mutex_unlock(&ddata->lock);
}
static void tfp410_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
mutex_lock(&ddata->lock);
*timings = dssdev->panel.timings;
@@ -213,7 +261,7 @@ static void tfp410_get_timings(struct omap_dss_device *dssdev,
static int tfp410_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
int r;
mutex_lock(&ddata->lock);
@@ -258,7 +306,7 @@ static int tfp410_ddc_read(struct i2c_adapter *adapter,
static int tfp410_read_edid(struct omap_dss_device *dssdev,
u8 *edid, int len)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
int r, l, bytes_read;
mutex_lock(&ddata->lock);
@@ -298,7 +346,7 @@ err:
static bool tfp410_detect(struct omap_dss_device *dssdev)
{
- struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev);
+ struct panel_drv_data *ddata = to_panel_data(dssdev);
unsigned char out;
int r;
@@ -319,9 +367,6 @@ out:
}
static struct omap_dss_driver tfp410_driver = {
- .probe = tfp410_probe,
- .remove = __exit_p(tfp410_remove),
-
.enable = tfp410_enable,
.disable = tfp410_disable,
@@ -329,23 +374,29 @@ static struct omap_dss_driver tfp410_driver = {
.get_timings = tfp410_get_timings,
.check_timings = tfp410_check_timings,
+ .get_resolution = omapdss_default_get_resolution,
+
.read_edid = tfp410_read_edid,
.detect = tfp410_detect,
+};
- .driver = {
- .name = "tfp410",
- .owner = THIS_MODULE,
+static struct platform_driver tfp410_platform_driver = {
+ .probe = tfp410_probe,
+ .remove = __exit_p(tfp410_remove),
+ .driver = {
+ .name = "tfp410",
+ .owner = THIS_MODULE,
},
};
static int __init tfp410_init(void)
{
- return omap_dss_register_driver(&tfp410_driver);
+ return platform_driver_register(&tfp410_platform_driver);
}
static void __exit tfp410_exit(void)
{
- omap_dss_unregister_driver(&tfp410_driver);
+ platform_driver_unregister(&tfp410_platform_driver);
}
module_init(tfp410_init);
--
1.7.10.4
--
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