mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 02:29:01 +00:00
a1383655cf
Tested on bcm2710 (Raspberry Pi 3B). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
59 lines
2.3 KiB
Diff
59 lines
2.3 KiB
Diff
From 5357e5991f09f78e945b3adcc5db0ebfa1766dc1 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
Date: Tue, 9 Apr 2019 12:37:28 +0100
|
|
Subject: [PATCH] drm: vc4: Query the display ID for each display in
|
|
FKMS
|
|
|
|
Replace the hard coded list of display IDs for a mailbox call
|
|
that returns the display ID for each display that has been
|
|
detected.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_firmware_kms.c | 16 +++++++++++++---
|
|
include/soc/bcm2835/raspberrypi-firmware.h | 1 +
|
|
2 files changed, 14 insertions(+), 3 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
|
@@ -944,7 +944,7 @@ static int vc4_fkms_bind(struct device *
|
|
struct vc4_crtc **crtc_list;
|
|
u32 num_displays, display_num;
|
|
int ret;
|
|
- const u32 display_num_lookup[] = {2, 7, 1};
|
|
+ u32 display_id;
|
|
|
|
vc4->firmware_kms = true;
|
|
|
|
@@ -983,8 +983,18 @@ static int vc4_fkms_bind(struct device *
|
|
return -ENOMEM;
|
|
|
|
for (display_num = 0; display_num < num_displays; display_num++) {
|
|
- ret = vc4_fkms_create_screen(dev, drm, display_num,
|
|
- display_num_lookup[display_num],
|
|
+ display_id = display_num;
|
|
+ ret = rpi_firmware_property(vc4->firmware,
|
|
+ RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID,
|
|
+ &display_id, sizeof(display_id));
|
|
+ /* FIXME: Determine the correct error handling here.
|
|
+ * Should we fail to create the one "screen" but keep the
|
|
+ * others, or fail the whole thing?
|
|
+ */
|
|
+ if (ret)
|
|
+ DRM_ERROR("Failed to get display id %u\n", display_num);
|
|
+
|
|
+ ret = vc4_fkms_create_screen(dev, drm, display_num, display_id,
|
|
&crtc_list[display_num]);
|
|
if (ret)
|
|
DRM_ERROR("Oh dear, failed to create display %u\n",
|
|
--- a/include/soc/bcm2835/raspberrypi-firmware.h
|
|
+++ b/include/soc/bcm2835/raspberrypi-firmware.h
|
|
@@ -114,6 +114,7 @@ enum rpi_firmware_property_tag {
|
|
RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF = 0x0004000f,
|
|
RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF = 0x00040010,
|
|
RPI_FIRMWARE_FRAMEBUFFER_RELEASE = 0x00048001,
|
|
+ RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID = 0x00040016,
|
|
RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM = 0x00048013,
|
|
RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS = 0x00040013,
|
|
RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_SETTINGS = 0x00040014,
|