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drm/omap: Expose DRM modes instead of timings in display devices

Browse Source 
omap_dss_device operations expose fixed video timings through a
.get_timings() operation that return a single timing for the device. To
prepare for the move to drm_bridge, modify the API to instead add DRM
modes directly to the connector.

As this puts more burden on display devices, we also create a helper
function for panels to add a single DRM mode from the panel video
timings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart 2018-09-13 00:17:01 +03:00 committed by Tomi Valkeinen
parent d17eb4537a
commit 870e19d59f
12 changed files with 80 additions and 61 deletions
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8
drivers/gpu/drm/omapdrm/displays/panel-dpi.c
View File

@ -68,12 +68,12 @@ static void panel_dpi_disable(struct omap_dss_device *dssdev)
regulator_disable(ddata->vcc_supply);
}
static void panel_dpi_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int panel_dpi_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops panel_dpi_ops = {
@ -83,7 +83,7 @@ static const struct omap_dss_device_ops panel_dpi_ops = {
.enable = panel_dpi_enable,
.disable = panel_dpi_disable,
.get_timings = panel_dpi_get_timings,
.get_modes = panel_dpi_get_modes,
};
static int panel_dpi_probe_of(struct platform_device *pdev)

10
drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
View File

@ -24,6 +24,8 @@
#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>
@ -1110,12 +1112,12 @@ static void dsicm_ulps_work(struct work_struct *work)
mutex_unlock(&ddata->lock);
}
static void dsicm_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int dsicm_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static int dsicm_check_timings(struct omap_dss_device *dssdev,
@ -1156,7 +1158,7 @@ static const struct omap_dss_device_ops dsicm_ops = {
.enable = dsicm_enable,
.disable = dsicm_disable,
.get_timings = dsicm_get_timings,
.get_modes = dsicm_get_modes,
.check_timings = dsicm_check_timings,
};

8
drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
View File

@ -139,12 +139,12 @@ static void lb035q02_disable(struct omap_dss_device *dssdev)
gpiod_set_value_cansleep(ddata->enable_gpio, 0);
}
static void lb035q02_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int lb035q02_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops lb035q02_ops = {
@ -154,7 +154,7 @@ static const struct omap_dss_device_ops lb035q02_ops = {
.enable = lb035q02_enable,
.disable = lb035q02_disable,
.get_timings = lb035q02_get_timings,
.get_modes = lb035q02_get_modes,
};
static int lb035q02_probe_of(struct spi_device *spi)

8
drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
View File

@ -132,12 +132,12 @@ static void nec_8048_disable(struct omap_dss_device *dssdev)
gpiod_set_value_cansleep(ddata->res_gpio, 0);
}
static void nec_8048_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int nec_8048_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops nec_8048_ops = {
@ -147,7 +147,7 @@ static const struct omap_dss_device_ops nec_8048_ops = {
.enable = nec_8048_enable,
.disable = nec_8048_disable,
.get_timings = nec_8048_get_timings,
.get_modes = nec_8048_get_modes,
};
static int nec_8048_probe(struct spi_device *spi)

8
drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
View File

@ -111,12 +111,12 @@ static void sharp_ls_post_disable(struct omap_dss_device *dssdev)
regulator_disable(ddata->vcc);
}
static void sharp_ls_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int sharp_ls_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops sharp_ls_ops = {
@ -128,7 +128,7 @@ static const struct omap_dss_device_ops sharp_ls_ops = {
.disable = sharp_ls_disable,
.post_disable = sharp_ls_post_disable,
.get_timings = sharp_ls_get_timings,
.get_modes = sharp_ls_get_modes,
};
static int sharp_ls_get_gpio_of(struct device *dev, int index, int val,

8
drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
View File

@ -596,12 +596,12 @@ static void acx565akm_disable(struct omap_dss_device *dssdev)
mutex_unlock(&ddata->mutex);
}
static void acx565akm_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int acx565akm_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops acx565akm_ops = {
@ -611,7 +611,7 @@ static const struct omap_dss_device_ops acx565akm_ops = {
.enable = acx565akm_enable,
.disable = acx565akm_disable,
.get_timings = acx565akm_get_timings,
.get_modes = acx565akm_get_modes,
};
static int acx565akm_probe(struct spi_device *spi)

8
drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
View File

@ -272,12 +272,12 @@ static void td028ttec1_panel_disable(struct omap_dss_device *dssdev)
jbt_reg_write_1(ddata, JBT_REG_POWER_ON_OFF, 0x00);
}
static void td028ttec1_panel_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int td028ttec1_panel_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops td028ttec1_ops = {
@ -287,7 +287,7 @@ static const struct omap_dss_device_ops td028ttec1_ops = {
.enable = td028ttec1_panel_enable,
.disable = td028ttec1_panel_disable,
.get_timings = td028ttec1_panel_get_timings,
.get_modes = td028ttec1_panel_get_modes,
};
static int td028ttec1_panel_probe(struct spi_device *spi)

8
drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
View File

@ -347,12 +347,12 @@ static void tpo_td043_disable(struct omap_dss_device *dssdev)
tpo_td043_power_off(ddata);
}
static void tpo_td043_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int tpo_td043_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
*vm = ddata->vm;
return omapdss_display_get_modes(connector, &ddata->vm);
}
static const struct omap_dss_device_ops tpo_td043_ops = {
@ -362,7 +362,7 @@ static const struct omap_dss_device_ops tpo_td043_ops = {
.enable = tpo_td043_enable,
.disable = tpo_td043_disable,
.get_timings = tpo_td043_get_timings,
.get_modes = tpo_td043_get_modes,
};
static int tpo_td043_probe(struct spi_device *spi)

22
drivers/gpu/drm/omapdrm/dss/display.c
View File

@ -23,6 +23,9 @@
#include <linux/kernel.h>
#include <linux/of.h>
#include <drm/drm_connector.h>
#include <drm/drm_modes.h>
#include "omapdss.h"
static int disp_num_counter;
@ -58,3 +61,22 @@ struct omap_dss_device *omapdss_display_get(struct omap_dss_device *output)
return omapdss_device_get(output);
}
EXPORT_SYMBOL_GPL(omapdss_display_get);
int omapdss_display_get_modes(struct drm_connector *connector,
const struct videomode *vm)
{
struct drm_display_mode *mode;
mode = drm_mode_create(connector->dev);
if (!mode)
return 0;
drm_display_mode_from_videomode(vm, mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
return 1;
}
EXPORT_SYMBOL_GPL(omapdss_display_get_modes);

8
drivers/gpu/drm/omapdrm/dss/omapdss.h
View File

@ -67,6 +67,7 @@ struct dss_lcd_mgr_config;
struct snd_aes_iec958;
struct snd_cea_861_aud_if;
struct hdmi_avi_infoframe;
struct drm_connector;
enum omap_display_type {
OMAP_DISPLAY_TYPE_NONE = 0,
@ -366,8 +367,6 @@ struct omap_dss_device_ops {
int (*check_timings)(struct omap_dss_device *dssdev,
struct videomode *vm);
void (*get_timings)(struct omap_dss_device *dssdev,
struct videomode *vm);
void (*set_timings)(struct omap_dss_device *dssdev,
const struct videomode *vm);
@ -381,6 +380,9 @@ struct omap_dss_device_ops {
int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
int (*get_modes)(struct omap_dss_device *dssdev,
struct drm_connector *connector);
union {
const struct omapdss_hdmi_ops hdmi;
const struct omapdss_dsi_ops dsi;
@ -469,6 +471,8 @@ static inline bool omapdss_is_initialized(void)
void omapdss_display_init(struct omap_dss_device *dssdev);
struct omap_dss_device *omapdss_display_get(struct omap_dss_device *output);
int omapdss_display_get_modes(struct drm_connector *connector,
const struct videomode *vm);
void omapdss_device_register(struct omap_dss_device *dssdev);
void omapdss_device_unregister(struct omap_dss_device *dssdev);

12
drivers/gpu/drm/omapdrm/dss/venc.c
View File

@ -548,14 +548,17 @@ static void venc_display_disable(struct omap_dss_device *dssdev)
mutex_unlock(&venc->venc_lock);
}
static void venc_get_timings(struct omap_dss_device *dssdev,
struct videomode *vm)
static int venc_get_modes(struct omap_dss_device *dssdev,
struct drm_connector *connector)
{
struct venc_device *venc = dssdev_to_venc(dssdev);
int r;
mutex_lock(&venc->venc_lock);
*vm = venc->vm;
r = omapdss_display_get_modes(connector, &venc->vm);
mutex_unlock(&venc->venc_lock);
return r;
}
static void venc_set_timings(struct omap_dss_device *dssdev,
@ -690,8 +693,9 @@ static const struct omap_dss_device_ops venc_ops = {
.disable = venc_display_disable,
.check_timings = venc_check_timings,
.get_timings = venc_get_timings,
.set_timings = venc_set_timings,
.get_modes = venc_get_modes,
};
/* -----------------------------------------------------------------------------

33
drivers/gpu/drm/omapdrm/omap_connector.c
View File

@ -212,8 +212,6 @@ static int omap_connector_get_modes(struct drm_connector *connector)
{
struct omap_connector *omap_connector = to_omap_connector(connector);
struct omap_dss_device *dssdev;
struct drm_display_mode *mode;
struct videomode vm = {0};
DBG("%s", omap_connector->display->name);
@ -238,31 +236,20 @@ static int omap_connector_get_modes(struct drm_connector *connector)
&connector->display_info.height_mm);
/*
* Iterate over the pipeline to find the first device that can provide
* timing information. If we can't find any, we just let the KMS core
* add the default modes.
* If the display pipeline reports modes (e.g. with a fixed resolution
* panel or an analog TV output), query it.
*/
for (dssdev = omap_connector->display; dssdev; dssdev = dssdev->src) {
if (dssdev->ops->get_timings)
break;
if (dssdev->ops->get_modes)
return dssdev->ops->get_modes(dssdev, connector);
}
if (!dssdev)
return 0;
/* Add a single mode corresponding to the fixed panel timings. */
mode = drm_mode_create(connector->dev);
if (!mode)
return 0;
dssdev->ops->get_timings(dssdev, &vm);
drm_display_mode_from_videomode(&vm, mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
return 1;
/*
* We can't retrieve modes, which can happen for instance for a DVI or
* VGA output with the DDC bus unconnected. The KMS core will add the
* default modes.
*/
return 0;
}
static int omap_connector_mode_valid(struct drm_connector *connector,