caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
73 lines
1.7 KiB
C
73 lines
1.7 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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static int simple_video_probe(struct udevice *dev)
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{
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struct video_uc_platdata *plat = dev_get_uclass_plat(dev);
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struct video_priv *uc_priv = dev_get_uclass_priv(dev);
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const void *blob = gd->fdt_blob;
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const int node = dev_of_offset(dev);
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const char *format;
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fdt_addr_t base;
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fdt_size_t size;
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base = fdtdec_get_addr_size_auto_parent(blob, dev_of_offset(dev->parent),
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node, "reg", 0, &size, false);
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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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uc_priv->xsize = fdtdec_get_uint(blob, node, "width", 0);
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uc_priv->ysize = fdtdec_get_uint(blob, node, "height", 0);
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uc_priv->rot = 0;
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format = fdt_getprop(blob, node, "format", NULL);
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debug("%s: %dx%d@%s\n", __func__, uc_priv->xsize, uc_priv->ysize, format);
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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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uc_priv->bpix = VIDEO_BPP32;
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} else {
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printf("%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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