include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[linux-2.6.git] / arch / arm / mach-netx / fb.c
1 /*
2  * arch/arm/mach-netx/fb.c
3  *
4  * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2
8  * as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  */
19
20 #include <linux/device.h>
21 #include <linux/init.h>
22 #include <linux/dma-mapping.h>
23 #include <linux/amba/bus.h>
24 #include <linux/amba/clcd.h>
25 #include <linux/err.h>
26 #include <linux/gfp.h>
27
28 #include <asm/irq.h>
29
30 #include <mach/netx-regs.h>
31 #include <mach/hardware.h>
32
33 static struct clcd_panel *netx_panel;
34
35 void netx_clcd_enable(struct clcd_fb *fb)
36 {
37 }
38
39 int netx_clcd_setup(struct clcd_fb *fb)
40 {
41         dma_addr_t dma;
42
43         fb->panel = netx_panel;
44
45         fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,
46                                                     &dma, GFP_KERNEL);
47         if (!fb->fb.screen_base) {
48                 printk(KERN_ERR "CLCD: unable to map framebuffer\n");
49                 return -ENOMEM;
50         }
51
52         fb->fb.fix.smem_start   = dma;
53         fb->fb.fix.smem_len     = 1024*1024;
54
55         return 0;
56 }
57
58 int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
59 {
60         return dma_mmap_writecombine(&fb->dev->dev, vma,
61                                      fb->fb.screen_base,
62                                      fb->fb.fix.smem_start,
63                                      fb->fb.fix.smem_len);
64 }
65
66 void netx_clcd_remove(struct clcd_fb *fb)
67 {
68         dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
69                               fb->fb.screen_base, fb->fb.fix.smem_start);
70 }
71
72 void clk_disable(struct clk *clk)
73 {
74 }
75
76 int clk_set_rate(struct clk *clk, unsigned long rate)
77 {
78         return 0;
79 }
80
81 int clk_enable(struct clk *clk)
82 {
83         return 0;
84 }
85
86 struct clk *clk_get(struct device *dev, const char *id)
87 {
88         return dev && strcmp(dev_name(dev), "fb") == 0 ? NULL : ERR_PTR(-ENOENT);
89 }
90
91 void clk_put(struct clk *clk)
92 {
93 }
94
95 static struct amba_device fb_device = {
96         .dev            = {
97                 .init_name = "fb",
98                 .coherent_dma_mask = ~0,
99         },
100         .res            = {
101                 .start  = 0x00104000,
102                 .end    = 0x00104fff,
103                 .flags  = IORESOURCE_MEM,
104         },
105         .irq            = { NETX_IRQ_LCD, NO_IRQ },
106         .periphid       = 0x10112400,
107 };
108
109 int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
110 {
111         netx_panel = panel;
112         fb_device.dev.platform_data = board;
113         return amba_device_register(&fb_device, &iomem_resource);
114 }