diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0622-drm-vc4-Probe-DPI-DSI-timings-from-the-firmware.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0622-drm-vc4-Probe-DPI-DSI-timings-from-the-firmware.patch | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0622-drm-vc4-Probe-DPI-DSI-timings-from-the-firmware.patch b/target/linux/brcm2708/patches-4.19/950-0622-drm-vc4-Probe-DPI-DSI-timings-from-the-firmware.patch deleted file mode 100644 index 5c4eb0d32f..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0622-drm-vc4-Probe-DPI-DSI-timings-from-the-firmware.patch +++ /dev/null @@ -1,120 +0,0 @@ -From d5db7a4a6af4b3281ac2ef1023de68e4f6250516 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <dave.stevenson@raspberrypi.org> -Date: Tue, 21 May 2019 11:50:00 +0100 -Subject: [PATCH 622/703] drm: vc4: Probe DPI/DSI timings from the firmware - -For DPI and DSI displays query the firmware as to the configuration -and add it as the only mode for DRM. - -In theory we can add plumbing for setting the DPI/DSI mode from -KMS, but this is not being added at present as the support frameworks -aren't present in the firmware. - -Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> ---- - drivers/gpu/drm/vc4/vc4_firmware_kms.c | 60 ++++++++++++++++++---- - include/soc/bcm2835/raspberrypi-firmware.h | 1 + - 2 files changed, 51 insertions(+), 10 deletions(-) - ---- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c -+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c -@@ -280,7 +280,7 @@ static u32 vc4_get_display_type(u32 disp - /* The firmware display (DispmanX) IDs map to specific types in - * a fixed manner. - */ -- DRM_MODE_ENCODER_DSI, /* MAIN_LCD */ -+ DRM_MODE_ENCODER_DSI, /* MAIN_LCD - DSI or DPI */ - DRM_MODE_ENCODER_DSI, /* AUX_LCD */ - DRM_MODE_ENCODER_TMDS, /* HDMI0 */ - DRM_MODE_ENCODER_TVDAC, /* VEC */ -@@ -362,7 +362,6 @@ static void vc4_plane_atomic_update(stru - vc4_get_vc_image_fmt(drm_fmt->format); - struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane); - struct mailbox_set_plane *mb = &vc4_plane->mb; -- struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc); - int num_planes = fb->format->num_planes; - struct drm_display_mode *mode = &state->crtc->mode; - unsigned int rotation = SUPPORTED_ROTATIONS; -@@ -997,7 +996,9 @@ static int vc4_fkms_connector_get_modes( - return ret; - } - --/* FIXME: Read LCD mode from the firmware. This is the DSI panel resolution. */ -+/* This is the DSI panel resolution. Use this as a default should the firmware -+ * not respond to our request for the timings. -+ */ - static const struct drm_display_mode lcd_mode = { - DRM_MODE("800x480", DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, - 25979400 / 1000, -@@ -1008,15 +1009,54 @@ static const struct drm_display_mode lcd - - static int vc4_fkms_lcd_connector_get_modes(struct drm_connector *connector) - { -- //struct vc4_fkms_connector *fkms_connector = -- // to_vc4_fkms_connector(connector); -- //struct drm_encoder *encoder = fkms_connector->encoder; -- //struct vc4_fkms_encoder *vc4_encoder = to_vc4_fkms_encoder(encoder); -+ struct vc4_fkms_connector *fkms_connector = -+ to_vc4_fkms_connector(connector); -+ struct vc4_dev *vc4 = fkms_connector->vc4_dev; - struct drm_display_mode *mode; -- //int ret = 0; -+ struct mailbox_set_mode mb = { -+ .tag1 = { RPI_FIRMWARE_GET_DISPLAY_TIMING, -+ sizeof(struct set_timings), 0}, -+ .timings = { .display = fkms_connector->display_number }, -+ }; -+ struct drm_display_mode fw_mode; -+ int ret = 0; -+ -+ ret = rpi_firmware_property_list(vc4->firmware, &mb, sizeof(mb)); -+ if (!ret) { -+ /* Equivalent to DRM_MODE macro. */ -+ memset(&fw_mode, 0, sizeof(fw_mode)); -+ strncpy(fw_mode.name, "LCD_MODE", sizeof(fw_mode.name)); -+ fw_mode.status = 0; -+ fw_mode.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; -+ fw_mode.clock = mb.timings.clock; -+ fw_mode.hdisplay = mb.timings.hdisplay; -+ fw_mode.hsync_start = mb.timings.hsync_start; -+ fw_mode.hsync_end = mb.timings.hsync_end; -+ fw_mode.htotal = mb.timings.htotal; -+ fw_mode.hskew = 0; -+ fw_mode.vdisplay = mb.timings.vdisplay; -+ fw_mode.vsync_start = mb.timings.vsync_start; -+ fw_mode.vsync_end = mb.timings.vsync_end; -+ fw_mode.vtotal = mb.timings.vtotal; -+ fw_mode.vscan = mb.timings.vscan; -+ if (mb.timings.flags & TIMINGS_FLAGS_H_SYNC_POS) -+ fw_mode.flags |= DRM_MODE_FLAG_PHSYNC; -+ else -+ fw_mode.flags |= DRM_MODE_FLAG_NHSYNC; -+ if (mb.timings.flags & TIMINGS_FLAGS_V_SYNC_POS) -+ fw_mode.flags |= DRM_MODE_FLAG_PVSYNC; -+ else -+ fw_mode.flags |= DRM_MODE_FLAG_NVSYNC; -+ -+ fw_mode.base.type = DRM_MODE_OBJECT_MODE; -+ -+ mode = drm_mode_duplicate(connector->dev, -+ &fw_mode); -+ } else { -+ mode = drm_mode_duplicate(connector->dev, -+ &lcd_mode); -+ } - -- mode = drm_mode_duplicate(connector->dev, -- &lcd_mode); - if (!mode) { - DRM_ERROR("Failed to create a new display mode\n"); - return -ENOMEM; ---- a/include/soc/bcm2835/raspberrypi-firmware.h -+++ b/include/soc/bcm2835/raspberrypi-firmware.h -@@ -151,6 +151,7 @@ enum rpi_firmware_property_tag { - RPI_FIRMWARE_VCHIQ_INIT = 0x00048010, - - RPI_FIRMWARE_SET_PLANE = 0x00048015, -+ RPI_FIRMWARE_GET_DISPLAY_TIMING = 0x00040017, - RPI_FIRMWARE_SET_TIMING = 0x00048017, - - RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001, |