之前1024x768的屏能用，现在项目上需要使用SXGA分辨率1028x1024的屏，修改da8xx-fb.c中的lcd时序，结果内核启动后无法分配帧缓冲区，用示波器测量lcd时钟引脚也无时钟输出。分辨率如下：
static struct da8xx_panel known_lcd_panels[] = {
[0] =
{
.name = "LCD1280x1024",
.width = 1280,
.height = 1024,
.hfp = 48,
.hbp = 248,
.hsw = 112,
.vfp = 1,
.vbp = 38,//24
.vsw = 3,
.pxl_clk = 50000000,
.invert_pxl_clk = 0,
},
TCP cubic registered
NET: Registered protocol family 10
Mobile IPv6
ip6_tables: (C) 2000-2006 Netfilter Core Team
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 17
NET: Registered protocol family 15
can: controller area network core (rev 20090105 abi 8)
NET: Registered protocol family 29
can: raw protocol (rev 20090105)
can: broadcast manager protocol (rev 20090105 t)
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP filters: protocol multicast
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
lib80211: common routines for IEEE802.11 drivers
Registering the dns_resolver key type
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
ThumbEE CPU extension supported.
mux: Failed to setup hwmod io irq -22
[<c003bbf4>] (warn_slowpath_common+0x0/0x6c) from [<c003bc84>] (warn_slowpath_null+0x24/0x2c)
r9:c08d0c3c r8:00000000 r7:00000000 r6:c0870110 r5:c08f4ee0
r4:00000000
[<c003bc60>] (warn_slowpath_null+0x0/0x2c) from [<c0083094>] (__alloc_pages_nodemask+0x464/0x63c)
[<c0082c30>] (__alloc_pages_nodemask+0x0/0x63c) from [<c001a49c>] (__dma_alloc+0x90/0x308)
[<c001a40c>] (__dma_alloc+0x0/0x308) from [<c001a7a4>] (dma_alloc_coherent+0x5c/0x68)
[<c001a748>] (dma_alloc_coherent+0x0/0x68) from [<c0603c64>] (fb_probe+0x7c0/0xbc4)
r7:df04f008 r6:00a00000 r5:c08a52b0 r4:df11a654
[<c06034a4>] (fb_probe+0x0/0xbc4) from [<c0293af8>] (platform_drv_probe+0x20/0x24)
[<c0293ad8>] (platform_drv_probe+0x0/0x24) from [<c029264c>] (driver_probe_device+0xa0/0x1ac)
[<c02925ac>] (driver_probe_device+0x0/0x1ac) from [<c02927ec>] (__driver_attach+0x94/0x98)
r9:00000000 r8:c0849d60 r7:00000000 r6:df04f03c r5:c08a50c4
r4:df04f008
[<c0292758>] (__driver_attach+0x0/0x98) from [<c0291e00>] (bus_for_each_dev+0x68/0x94)
r7:00000000 r6:c0292758 r5:df02dee0 r4:c08a50c4
[<c0291d98>] (bus_for_each_dev+0x0/0x94) from [<c029249c>] (driver_attach+0x24/0x28)
r7:00000000 r6:df182640 r5:c08aa190 r4:c08a50c4
[<c0292478>] (driver_attach+0x0/0x28) from [<c0291668>] (bus_add_driver+0xa8/0x23c)
[<c02915c0>] (bus_add_driver+0x0/0x23c) from [<c0292e50>] (driver_register+0x80/0x13c)
[<c0292dd0>] (driver_register+0x0/0x13c) from [<c0293f94>] (platform_driver_register+0x4c/0x60)
r7:00000013 r6:c003f2b8 r5:c08d1100 r4:c086d5c0
[<c0293f48>] (platform_driver_register+0x0/0x60) from [<c0849d74>] (da8xx_fb_init+0x14/0x1c)
[<c0849d60>] (da8xx_fb_init+0x0/0x1c) from [<c0008608>] (do_one_initcall+0x3c/0x190)
[<c00085cc>] (do_one_initcall+0x0/0x190) from [<c0830288>] (kernel_init+0x80/0x124)
[<c0830208>] (kernel_init+0x0/0x124) from [<c003f2b8>] (do_exit+0x0/0x69c)
r5:c0830208 r4:00000000
---[ end trace 6fcb132ac310d004 ]---
da8xx_lcdc da8xx_lcdc.0: GLCD: kmalloc for frame buffer failed
da8xx_lcdc: probe of da8xx_lcdc.0 failed with error -22
请问有在AM335使用过大分辨率的吗?
