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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2017 Rob Clark
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <fdt_support.h>
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#include <log.h>
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#include <video.h>
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#include <asm/global_data.h>
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static int simple_video_probe(struct udevice *dev)
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{
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struct video_uc_plat *plat = dev_get_uclass_plat(dev);
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struct video_priv *uc_priv = dev_get_uclass_priv(dev);
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ofnode node = dev_ofnode(dev);
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const char *format;
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int ret;
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fdt_addr_t base;
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fdt_size_t size;
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u32 width, height, rot;
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base = dev_read_addr_size(dev, &size);
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if (base == FDT_ADDR_T_NONE) {
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debug("%s: Failed to decode memory region\n", __func__);
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return -EINVAL;
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}
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debug("%s: base=%llx, size=%llu\n", __func__, base, size);
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/*
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* TODO is there some way to reserve the framebuffer
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* region so it isn't clobbered?
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*/
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plat->base = base;
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plat->size = size;
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video_set_flush_dcache(dev, true);
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debug("%s: Query resolution...\n", __func__);
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ret = ofnode_read_u32(node, "width", &width);
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ret = ret ?: ofnode_read_u32(node, "height", &height);
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if (ret || !width || !height) {
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log_err("%s: invalid width or height: %d\n", __func__, ret);
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return ret ?: -EINVAL;
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}
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ofnode_read_u32(node, "rot", &rot);
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uc_priv->rot = rot;
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uc_priv->xsize = width;
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uc_priv->ysize = height;
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format = ofnode_read_string(node, "format");
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debug("%s: %dx%d@%s\n", __func__, uc_priv->xsize, uc_priv->ysize, format);
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if (!format) {
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log_err("%s: please add required property \"format\"\n", __func__);
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return -EINVAL;
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}
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if (strcmp(format, "r5g6b5") == 0) {
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uc_priv->bpix = VIDEO_BPP16;
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} else if (strcmp(format, "a8b8g8r8") == 0 ||
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strcmp(format, "x8b8g8r8") == 0) {
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uc_priv->bpix = VIDEO_BPP32;
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uc_priv->format = VIDEO_X8B8G8R8;
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} else if (strcmp(format, "a8r8g8b8") == 0 ||
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strcmp(format, "x8r8g8b8") == 0) {
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uc_priv->bpix = VIDEO_BPP32;
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uc_priv->format = VIDEO_X8R8G8B8;
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} else if (strcmp(format, "a2r10g10b10") == 0 ||
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strcmp(format, "x2r10g10b10") == 0) {
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uc_priv->bpix = VIDEO_BPP32;
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uc_priv->format = VIDEO_X2R10G10B10;
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} else {
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log_err("%s: invalid format: %s\n", __func__, format);
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return -EINVAL;
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}
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return 0;
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}
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static const struct udevice_id simple_video_ids[] = {
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{ .compatible = "simple-framebuffer" },
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{ }
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};
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U_BOOT_DRIVER(simple_video) = {
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.name = "simple_video",
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.id = UCLASS_VIDEO,
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.of_match = simple_video_ids,
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.probe = simple_video_probe,
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};
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