[PATCH v6 23/24] drm/radeon: Provide ddc symlink in connector sysfs directory
Alex Deucher
alexdeucher at gmail.com
Fri Jul 26 19:26:30 UTC 2019
On Fri, Jul 26, 2019 at 1:29 PM Andrzej Pietrasiewicz
<andrzej.p at collabora.com> wrote:
>
> Use the ddc pointer provided by the generic connector.
>
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at collabora.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/radeon/radeon_connectors.c | 142 +++++++++++++++------
> 1 file changed, 106 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
> index c60d1a44d22a..b3ad8d890801 100644
> --- a/drivers/gpu/drm/radeon/radeon_connectors.c
> +++ b/drivers/gpu/drm/radeon/radeon_connectors.c
> @@ -1870,6 +1870,7 @@ radeon_add_atom_connector(struct drm_device *dev,
> struct radeon_connector_atom_dig *radeon_dig_connector;
> struct drm_encoder *encoder;
> struct radeon_encoder *radeon_encoder;
> + struct i2c_adapter *ddc;
> uint32_t subpixel_order = SubPixelNone;
> bool shared_ddc = false;
> bool is_dp_bridge = false;
> @@ -1947,17 +1948,21 @@ radeon_add_atom_connector(struct drm_device *dev,
> radeon_connector->con_priv = radeon_dig_connector;
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> - if (radeon_connector->ddc_bus)
> + if (radeon_connector->ddc_bus) {
> has_aux = true;
> - else
> + ddc = &radeon_connector->ddc_bus->adapter;
> + } else {
> DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + }
> }
> switch (connector_type) {
> case DRM_MODE_CONNECTOR_VGA:
> case DRM_MODE_CONNECTOR_DVIA:
> default:
> - drm_connector_init(dev, &radeon_connector->base,
> - &radeon_dp_connector_funcs, connector_type);
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dp_connector_funcs,
> + connector_type,
> + ddc);
> drm_connector_helper_add(&radeon_connector->base,
> &radeon_dp_connector_helper_funcs);
> connector->interlace_allowed = true;
> @@ -1979,8 +1984,10 @@ radeon_add_atom_connector(struct drm_device *dev,
> case DRM_MODE_CONNECTOR_HDMIA:
> case DRM_MODE_CONNECTOR_HDMIB:
> case DRM_MODE_CONNECTOR_DisplayPort:
> - drm_connector_init(dev, &radeon_connector->base,
> - &radeon_dp_connector_funcs, connector_type);
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dp_connector_funcs,
> + connector_type,
> + ddc);
> drm_connector_helper_add(&radeon_connector->base,
> &radeon_dp_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> @@ -2027,8 +2034,10 @@ radeon_add_atom_connector(struct drm_device *dev,
> break;
> case DRM_MODE_CONNECTOR_LVDS:
> case DRM_MODE_CONNECTOR_eDP:
> - drm_connector_init(dev, &radeon_connector->base,
> - &radeon_lvds_bridge_connector_funcs, connector_type);
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_lvds_bridge_connector_funcs,
> + connector_type,
> + ddc);
> drm_connector_helper_add(&radeon_connector->base,
> &radeon_dp_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> @@ -2042,13 +2051,18 @@ radeon_add_atom_connector(struct drm_device *dev,
> } else {
> switch (connector_type) {
> case DRM_MODE_CONNECTOR_VGA:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_vga_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.load_detect_property,
> @@ -2067,13 +2081,18 @@ radeon_add_atom_connector(struct drm_device *dev,
> connector->doublescan_allowed = true;
> break;
> case DRM_MODE_CONNECTOR_DVIA:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_vga_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.load_detect_property,
> @@ -2098,13 +2117,18 @@ radeon_add_atom_connector(struct drm_device *dev,
> goto failed;
> radeon_dig_connector->igp_lane_info = igp_lane_info;
> radeon_connector->con_priv = radeon_dig_connector;
> - drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dvi_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> subpixel_order = SubPixelHorizontalRGB;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.coherent_mode_property,
> @@ -2155,13 +2179,18 @@ radeon_add_atom_connector(struct drm_device *dev,
> goto failed;
> radeon_dig_connector->igp_lane_info = igp_lane_info;
> radeon_connector->con_priv = radeon_dig_connector;
> - drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dvi_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.coherent_mode_property,
> 1);
> @@ -2205,15 +2234,20 @@ radeon_add_atom_connector(struct drm_device *dev,
> goto failed;
> radeon_dig_connector->igp_lane_info = igp_lane_info;
> radeon_connector->con_priv = radeon_dig_connector;
> - drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> - if (radeon_connector->ddc_bus)
> + if (radeon_connector->ddc_bus) {
> has_aux = true;
> - else
> + ddc = &radeon_connector->ddc_bus->adapter;
> + } else {
> DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + }
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dp_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
> subpixel_order = SubPixelHorizontalRGB;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.coherent_mode_property,
> @@ -2255,15 +2289,20 @@ radeon_add_atom_connector(struct drm_device *dev,
> goto failed;
> radeon_dig_connector->igp_lane_info = igp_lane_info;
> radeon_connector->con_priv = radeon_dig_connector;
> - drm_connector_init(dev, &radeon_connector->base, &radeon_edp_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> - if (radeon_connector->ddc_bus)
> + if (radeon_connector->ddc_bus) {
> has_aux = true;
> - else
> + ddc = &radeon_connector->ddc_bus->adapter;
> + } else {
> DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + }
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_edp_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> dev->mode_config.scaling_mode_property,
> DRM_MODE_SCALE_FULLSCREEN);
> @@ -2274,7 +2313,10 @@ radeon_add_atom_connector(struct drm_device *dev,
> case DRM_MODE_CONNECTOR_SVIDEO:
> case DRM_MODE_CONNECTOR_Composite:
> case DRM_MODE_CONNECTOR_9PinDIN:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_tv_connector_funcs,
> + connector_type,
> + ddc);
> drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> @@ -2294,13 +2336,18 @@ radeon_add_atom_connector(struct drm_device *dev,
> goto failed;
> radeon_dig_connector->igp_lane_info = igp_lane_info;
> radeon_connector->con_priv = radeon_dig_connector;
> - drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_lvds_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> dev->mode_config.scaling_mode_property,
> DRM_MODE_SCALE_FULLSCREEN);
> @@ -2378,13 +2425,18 @@ radeon_add_legacy_connector(struct drm_device *dev,
>
> switch (connector_type) {
> case DRM_MODE_CONNECTOR_VGA:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_vga_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.load_detect_property,
> @@ -2395,13 +2447,18 @@ radeon_add_legacy_connector(struct drm_device *dev,
> connector->doublescan_allowed = true;
> break;
> case DRM_MODE_CONNECTOR_DVIA:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_vga_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> rdev->mode_info.load_detect_property,
> @@ -2413,13 +2470,18 @@ radeon_add_legacy_connector(struct drm_device *dev,
> break;
> case DRM_MODE_CONNECTOR_DVII:
> case DRM_MODE_CONNECTOR_DVID:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_dvi_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
> if (connector_type == DRM_MODE_CONNECTOR_DVII) {
> radeon_connector->dac_load_detect = true;
> drm_object_attach_property(&radeon_connector->base.base,
> @@ -2436,7 +2498,10 @@ radeon_add_legacy_connector(struct drm_device *dev,
> case DRM_MODE_CONNECTOR_SVIDEO:
> case DRM_MODE_CONNECTOR_Composite:
> case DRM_MODE_CONNECTOR_9PinDIN:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_tv_connector_funcs,
> + connector_type,
> + ddc);
> drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
> radeon_connector->dac_load_detect = true;
> /* RS400,RC410,RS480 chipset seems to report a lot
> @@ -2458,13 +2523,18 @@ radeon_add_legacy_connector(struct drm_device *dev,
> connector->doublescan_allowed = false;
> break;
> case DRM_MODE_CONNECTOR_LVDS:
> - drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
> - drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
> if (i2c_bus->valid) {
> radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
> if (!radeon_connector->ddc_bus)
> DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
> + else
> + ddc = &radeon_connector->ddc_bus->adapter;
> }
> + drm_connector_init_with_ddc(dev, &radeon_connector->base,
> + &radeon_lvds_connector_funcs,
> + connector_type,
> + ddc);
> + drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
> drm_object_attach_property(&radeon_connector->base.base,
> dev->mode_config.scaling_mode_property,
> DRM_MODE_SCALE_FULLSCREEN);
> --
> 2.17.1
>
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