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4505153954
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 136 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* arch/arm/mach-netx/fb.c
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*
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* Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*/
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/dma-mapping.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/clcd.h>
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#include <linux/err.h>
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#include <linux/gfp.h>
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#include <asm/irq.h>
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#include <mach/netx-regs.h>
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#include <mach/hardware.h>
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static struct clcd_panel *netx_panel;
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void netx_clcd_enable(struct clcd_fb *fb)
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{
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}
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int netx_clcd_setup(struct clcd_fb *fb)
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{
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dma_addr_t dma;
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fb->panel = netx_panel;
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fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, 1024 * 1024, &dma,
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GFP_KERNEL);
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if (!fb->fb.screen_base) {
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printk(KERN_ERR "CLCD: unable to map framebuffer\n");
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return -ENOMEM;
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}
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fb->fb.fix.smem_start = dma;
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fb->fb.fix.smem_len = 1024*1024;
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return 0;
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}
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int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
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{
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return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
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fb->fb.fix.smem_start, fb->fb.fix.smem_len);
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}
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void netx_clcd_remove(struct clcd_fb *fb)
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{
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dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
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fb->fb.fix.smem_start);
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}
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static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
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int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
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{
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netx_panel = panel;
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fb_device.dev.platform_data = board;
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return amba_device_register(&fb_device, &iomem_resource);
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}
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