brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 194 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0617-drm-vc4-Query-firmware-for-custom-HDMI-mode.patch b/target/linux/bcm27xx/patches-4.19/950-0617-drm-vc4-Query-firmware-for-custom-HDMI-mode.patch
new file mode 100644
index 0000000000..00d0252deb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0617-drm-vc4-Query-firmware-for-custom-HDMI-mode.patch
@@ -0,0 +1,194 @@
+From 5620f5eda349027a6e00e23391bc59617d25b449 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 3 Jul 2019 17:44:53 +0100
+Subject: [PATCH] drm/vc4: Query firmware for custom HDMI mode
+
+Allow custom HDMI modes to be specified from config.txt,
+and these then override EDID parsing.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 142 ++++++++++++++-----------
+ 1 file changed, 81 insertions(+), 61 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -1035,6 +1035,58 @@ vc4_fkms_connector_detect(struct drm_con
+ 	return connector_status_connected;
+ }
+ 
++/* Queries the firmware to populate a drm_mode structure for this display */
++static int vc4_fkms_get_fw_mode(struct vc4_fkms_connector *fkms_connector,
++				struct drm_display_mode *mode)
++{
++	struct vc4_dev *vc4 = fkms_connector->vc4_dev;
++	struct set_timings timings = { 0 };
++	int ret;
++
++	timings.display = fkms_connector->display_number;
++
++	ret = rpi_firmware_property(vc4->firmware,
++				    RPI_FIRMWARE_GET_DISPLAY_TIMING, &timings,
++				    sizeof(timings));
++	if (ret || !timings.clock)
++		/* No mode returned - abort */
++		return -1;
++
++	/* Equivalent to DRM_MODE macro. */
++	memset(mode, 0, sizeof(*mode));
++	strncpy(mode->name, "FIXED_MODE", sizeof(mode->name));
++	mode->status = 0;
++	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
++	mode->clock = timings.clock;
++	mode->hdisplay = timings.hdisplay;
++	mode->hsync_start = timings.hsync_start;
++	mode->hsync_end = timings.hsync_end;
++	mode->htotal = timings.htotal;
++	mode->hskew = 0;
++	mode->vdisplay = timings.vdisplay;
++	mode->vsync_start = timings.vsync_start;
++	mode->vsync_end = timings.vsync_end;
++	mode->vtotal = timings.vtotal;
++	mode->vscan = timings.vscan;
++
++	if (timings.flags & TIMINGS_FLAGS_H_SYNC_POS)
++		mode->flags |= DRM_MODE_FLAG_PHSYNC;
++	else
++		mode->flags |= DRM_MODE_FLAG_NHSYNC;
++
++	if (timings.flags & TIMINGS_FLAGS_V_SYNC_POS)
++		mode->flags |= DRM_MODE_FLAG_PVSYNC;
++	else
++		mode->flags |= DRM_MODE_FLAG_NVSYNC;
++
++	if (timings.flags & TIMINGS_FLAGS_INTERLACE)
++		mode->flags |= DRM_MODE_FLAG_INTERLACE;
++
++	mode->base.type = DRM_MODE_OBJECT_MODE;
++
++	return 0;
++}
++
+ static int vc4_fkms_get_edid_block(void *data, u8 *buf, unsigned int block,
+ 				   size_t len)
+ {
+@@ -1063,30 +1115,40 @@ static int vc4_fkms_connector_get_modes(
+ 					to_vc4_fkms_connector(connector);
+ 	struct drm_encoder *encoder = fkms_connector->encoder;
+ 	struct vc4_fkms_encoder *vc4_encoder = to_vc4_fkms_encoder(encoder);
+-	int ret = 0;
++	struct drm_display_mode fw_mode;
++	struct drm_display_mode *mode;
+ 	struct edid *edid;
++	int num_modes;
+ 
+-	edid = drm_do_get_edid(connector, vc4_fkms_get_edid_block,
+-			       fkms_connector);
++	if (!vc4_fkms_get_fw_mode(fkms_connector, &fw_mode)) {
++		drm_mode_debug_printmodeline(&fw_mode);
++		mode = drm_mode_duplicate(connector->dev,
++					  &fw_mode);
++		drm_mode_probed_add(connector, mode);
++		num_modes = 1;	/* 1 mode */
++	} else {
++		edid = drm_do_get_edid(connector, vc4_fkms_get_edid_block,
++				       fkms_connector);
+ 
+-	/* FIXME: Can we do CEC?
+-	 * cec_s_phys_addr_from_edid(vc4->hdmi->cec_adap, edid);
+-	 * if (!edid)
+-	 *	return -ENODEV;
+-	 */
+-
+-	vc4_encoder->hdmi_monitor = drm_detect_hdmi_monitor(edid);
+-
+-	if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
+-		vc4_encoder->rgb_range_selectable =
+-			drm_rgb_quant_range_selectable(edid);
++		/* FIXME: Can we do CEC?
++		 * cec_s_phys_addr_from_edid(vc4->hdmi->cec_adap, edid);
++		 * if (!edid)
++		 *	return -ENODEV;
++		 */
++
++		vc4_encoder->hdmi_monitor = drm_detect_hdmi_monitor(edid);
++
++		if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
++			vc4_encoder->rgb_range_selectable =
++				drm_rgb_quant_range_selectable(edid);
++		}
++
++		drm_connector_update_edid_property(connector, edid);
++		num_modes = drm_add_edid_modes(connector, edid);
++		kfree(edid);
+ 	}
+ 
+-	drm_connector_update_edid_property(connector, edid);
+-	ret = drm_add_edid_modes(connector, edid);
+-	kfree(edid);
+-
+-	return ret;
++	return num_modes;
+ }
+ 
+ /* This is the DSI panel resolution. Use this as a default should the firmware
+@@ -1104,57 +1166,15 @@ static int vc4_fkms_lcd_connector_get_mo
+ {
+ 	struct vc4_fkms_connector *fkms_connector =
+ 					to_vc4_fkms_connector(connector);
+-	struct vc4_dev *vc4 = fkms_connector->vc4_dev;
+ 	struct drm_display_mode *mode;
+-	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;
+-		if (mb.timings.flags & TIMINGS_FLAGS_V_SYNC_POS)
+-			fw_mode.flags |= DRM_MODE_FLAG_PVSYNC;
+-		else
+-			fw_mode.flags |= DRM_MODE_FLAG_NVSYNC;
+-		if (mb.timings.flags & TIMINGS_FLAGS_INTERLACE)
+-			fw_mode.flags |= DRM_MODE_FLAG_INTERLACE;
+-
+-		fw_mode.base.type = DRM_MODE_OBJECT_MODE;
+ 
++	if (!vc4_fkms_get_fw_mode(fkms_connector, &fw_mode) && fw_mode.clock)
+ 		mode = drm_mode_duplicate(connector->dev,
+ 					  &fw_mode);
+-	} else {
++	else
+ 		mode = drm_mode_duplicate(connector->dev,
+ 					  &lcd_mode);
+-	}
+ 
+ 	if (!mode) {
+ 		DRM_ERROR("Failed to create a new display mode\n");