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>
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Simplefb device tree support
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*
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* (C) Copyright 2015
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* Stephen Warren <swarren@wwwdotorg.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <lcd.h>
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#include <fdt_support.h>
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#include <linux/libfdt.h>
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#include <video.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int lcd_dt_simplefb_configure_node(void *blob, int off)
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{
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int xsize, ysize;
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int bpix; /* log2 of bits per pixel */
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const char *name;
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ulong fb_base;
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#ifdef CONFIG_DM_VIDEO
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struct video_uc_platdata *plat;
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struct video_priv *uc_priv;
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struct udevice *dev;
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int ret;
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ret = uclass_first_device_err(UCLASS_VIDEO, &dev);
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if (ret)
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return ret;
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uc_priv = dev_get_uclass_priv(dev);
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plat = dev_get_uclass_plat(dev);
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xsize = uc_priv->xsize;
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ysize = uc_priv->ysize;
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bpix = uc_priv->bpix;
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fb_base = plat->base;
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#else
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xsize = lcd_get_pixel_width();
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ysize = lcd_get_pixel_height();
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bpix = LCD_BPP;
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fb_base = gd->fb_base;
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#endif
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switch (bpix) {
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case 4: /* VIDEO_BPP16 */
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name = "r5g6b5";
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break;
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case 5: /* VIDEO_BPP32 */
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name = "a8r8g8b8";
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break;
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default:
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return -EINVAL;
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}
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return fdt_setup_simplefb_node(blob, off, fb_base, xsize, ysize,
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xsize * (1 << bpix) / 8, name);
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}
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int lcd_dt_simplefb_add_node(void *blob)
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{
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static const char compat[] = "simple-framebuffer";
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static const char disabled[] = "disabled";
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int off, ret;
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off = fdt_add_subnode(blob, 0, "framebuffer");
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if (off < 0)
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return -1;
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ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
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if (ret < 0)
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return -1;
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ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
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if (ret < 0)
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return -1;
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return lcd_dt_simplefb_configure_node(blob, off);
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}
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int lcd_dt_simplefb_enable_existing_node(void *blob)
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{
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int off;
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off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
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if (off < 0)
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return -1;
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return lcd_dt_simplefb_configure_node(blob, off);
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}
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