diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 107 |
1 files changed, 72 insertions, 35 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index 5e375e9c4f5d..47e9bfba0642 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -398,30 +398,28 @@ static void amdgpu_connector_add_common_modes(struct drm_encoder *encoder, struct drm_display_mode *mode = NULL; struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; int i; - static const struct mode_size { + int n; + struct mode_size { + char name[DRM_DISPLAY_MODE_LEN]; int w; int h; - } common_modes[17] = { - { 640, 480}, - { 720, 480}, - { 800, 600}, - { 848, 480}, - {1024, 768}, - {1152, 768}, - {1280, 720}, - {1280, 800}, - {1280, 854}, - {1280, 960}, - {1280, 1024}, - {1440, 900}, - {1400, 1050}, - {1680, 1050}, - {1600, 1200}, - {1920, 1080}, - {1920, 1200} + } common_modes[] = { + { "640x480", 640, 480}, + { "800x600", 800, 600}, + { "1024x768", 1024, 768}, + { "1280x720", 1280, 720}, + { "1280x800", 1280, 800}, + {"1280x1024", 1280, 1024}, + { "1440x900", 1440, 900}, + {"1680x1050", 1680, 1050}, + {"1600x1200", 1600, 1200}, + {"1920x1080", 1920, 1080}, + {"1920x1200", 1920, 1200} }; - for (i = 0; i < 17; i++) { + n = ARRAY_SIZE(common_modes); + + for (i = 0; i < n; i++) { if (amdgpu_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) { if (common_modes[i].w > 1024 || common_modes[i].h > 768) @@ -434,12 +432,11 @@ static void amdgpu_connector_add_common_modes(struct drm_encoder *encoder, common_modes[i].h == native_mode->vdisplay)) continue; } - if (common_modes[i].w < 320 || common_modes[i].h < 200) - continue; mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false); if (!mode) return; + strscpy(mode->name, common_modes[i].name, DRM_DISPLAY_MODE_LEN); drm_mode_probed_add(connector, mode); } @@ -1195,29 +1192,69 @@ static void amdgpu_connector_dvi_force(struct drm_connector *connector) amdgpu_connector->use_digital = true; } +/** + * amdgpu_max_hdmi_pixel_clock - Return max supported HDMI (TMDS) pixel clock + * @adev: pointer to amdgpu_device + * + * Return: maximum supported HDMI (TMDS) pixel clock in KHz. + */ +static int amdgpu_max_hdmi_pixel_clock(const struct amdgpu_device *adev) +{ + if (adev->asic_type >= CHIP_POLARIS10) + return 600000; + else if (adev->asic_type >= CHIP_TONGA) + return 300000; + else + return 297000; +} + +/** + * amdgpu_connector_dvi_mode_valid - Validate a mode on DVI/HDMI connectors + * @connector: DRM connector to validate the mode on + * @mode: display mode to validate + * + * Validate the given display mode on DVI and HDMI connectors, including + * analog signals on DVI-I. + * + * Return: drm_mode_status indicating whether the mode is valid. + */ static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector *connector, const struct drm_display_mode *mode) { struct drm_device *dev = connector->dev; struct amdgpu_device *adev = drm_to_adev(dev); struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); + const int max_hdmi_pixel_clock = amdgpu_max_hdmi_pixel_clock(adev); + const int max_dvi_single_link_pixel_clock = 165000; + int max_digital_pixel_clock_khz; /* XXX check mode bandwidth */ - if (amdgpu_connector->use_digital && (mode->clock > 165000)) { - if ((amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) || - (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) || - (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B)) { - return MODE_OK; - } else if (connector->display_info.is_hdmi) { - /* HDMI 1.3+ supports max clock of 340 Mhz */ - if (mode->clock > 340000) - return MODE_CLOCK_HIGH; - else - return MODE_OK; - } else { - return MODE_CLOCK_HIGH; + if (amdgpu_connector->use_digital) { + switch (amdgpu_connector->connector_object_id) { + case CONNECTOR_OBJECT_ID_HDMI_TYPE_A: + max_digital_pixel_clock_khz = max_hdmi_pixel_clock; + break; + case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I: + case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D: + max_digital_pixel_clock_khz = max_dvi_single_link_pixel_clock; + break; + case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I: + case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D: + case CONNECTOR_OBJECT_ID_HDMI_TYPE_B: + max_digital_pixel_clock_khz = max_dvi_single_link_pixel_clock * 2; + break; } + + /* When the display EDID claims that it's an HDMI display, + * we use the HDMI encoder mode of the display HW, + * so we should verify against the max HDMI clock here. + */ + if (connector->display_info.is_hdmi) + max_digital_pixel_clock_khz = max_hdmi_pixel_clock; + + if (mode->clock > max_digital_pixel_clock_khz) + return MODE_CLOCK_HIGH; } /* check against the max pixel clock */ |