Hi,
On Wed, Dec 05, 2018 at 05:00:05PM +0200, Laurent Pinchart wrote:
> 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@xxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
-- Sebastian
> drivers/gpu/drm/omapdrm/displays/panel-dpi.c | 8 ++---
> .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 10 +++---
> .../displays/panel-lgphilips-lb035q02.c | 8 ++---
> .../omapdrm/displays/panel-nec-nl8048hl11.c | 8 ++---
> .../displays/panel-sharp-ls037v7dw01.c | 8 ++---
> .../omapdrm/displays/panel-sony-acx565akm.c | 8 ++---
> .../omapdrm/displays/panel-tpo-td028ttec1.c | 8 ++---
> .../omapdrm/displays/panel-tpo-td043mtea1.c | 8 ++---
> drivers/gpu/drm/omapdrm/dss/display.c | 22 +++++++++++++
> drivers/gpu/drm/omapdrm/dss/omapdss.h | 8 +++--
> drivers/gpu/drm/omapdrm/dss/venc.c | 12 ++++---
> drivers/gpu/drm/omapdrm/omap_connector.c | 33 ++++++-------------
> 12 files changed, 80 insertions(+), 61 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
> index c9d736f5eac0..2bda6d4fdb16 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> index ffbf20e6ebe9..9cd9ab487a24 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
> @@ -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,
> };
>
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
> index e043cab0a0c9..e05b7f80416e 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-lgphilips-lb035q02.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c b/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
> index 44fd6134317d..cf2127837e67 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-nec-nl8048hl11.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
> index 907abf8ef4e6..30320cee1e56 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
> @@ -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,
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
> index eeaea752f171..8debe77f92ff 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
> index f1a5c14407a4..c8b15f19a166 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td028ttec1.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
> index 996a16736d10..9ecc4c7bee67 100644
> --- a/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
> +++ b/drivers/gpu/drm/omapdrm/displays/panel-tpo-td043mtea1.c
> @@ -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)
> diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c
> index 34b2a4ef63a4..398964358386 100644
> --- a/drivers/gpu/drm/omapdrm/dss/display.c
> +++ b/drivers/gpu/drm/omapdrm/dss/display.c
> @@ -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);
> diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> index 723a9b5060f5..3be8d3153d1a 100644
> --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> @@ -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;
> @@ -476,6 +478,8 @@ static inline bool omapdss_is_initialized(void)
> while ((d = omapdss_device_get_next(d, OMAP_DSS_DEVICE_TYPE_DISPLAY)) != NULL)
> 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);
> diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c
> index 3fc776c45c4f..cefefe6d6fcb 100644
> --- a/drivers/gpu/drm/omapdrm/dss/venc.c
> +++ b/drivers/gpu/drm/omapdrm/dss/venc.c
> @@ -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,
> };
>
> /* -----------------------------------------------------------------------------
> diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
> index b81302c4bf9e..93b31bf07d05 100644
> --- a/drivers/gpu/drm/omapdrm/omap_connector.c
> +++ b/drivers/gpu/drm/omapdrm/omap_connector.c
> @@ -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,
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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