• Haojian Zhuang's avatar
    [ARM] pxa: fix gpio issue in zylonite · eb906911
    Haojian Zhuang authored
    WARNING: at drivers/gpio/gpiolib.c:83 gpio_ensure_requested+0x58/0xbc()
     autorequest GPIO-71
     Modules linked in:
     [<c0028bd0>] (unwind_backtrace+0x0/0xe8) from [<c003c328>] (warn_slowpath_common+0x48/0x78)
     [<c003c328>] (warn_slowpath_common+0x48/0x78) from [<c003c394>] (warn_slowpath_fmt+0x28/0x38)
     [<c003c394>] (warn_slowpath_fmt+0x28/0x38) from [<c0146128>] (gpio_ensure_requested+0x58/0xbc)
     [<c0146128>] (gpio_ensure_requested+0x58/0xbc) from [<c0146308>] (gpio_direction_input+0x80/0xf4)
     [<c0146308>] (gpio_direction_input+0x80/0xf4) from [<c000c668>] (zylonite_pxa300_init+0x108/0x214)
     [<c000c668>] (zylonite_pxa300_init+0x108/0x214) from [<c000c4e4>] (zylonite_init+0x8/0x84)
     [<c000c4e4>] (zylonite_init+0x8/0x84) from [<c00097cc>] (customize_machine+0x18/0x24)
     [<c00097cc>] (customize_machine+0x18/0x24) from [<c00222e0>] (do_one_initcall+0x30/0x1b0)
     [<c00222e0>] (do_one_initcall+0x30/0x1b0) from [<c00083f4>] (kernel_init+0xa4/0x11c)
     [<c00083f4>] (kernel_init+0xa4/0x11c) from [<c0023f3c>] (kernel_thread_exit+0x0/0x8)
     ---[ end trace 1b75b31a2719ed1c ]---
    
    This issue is caused by using gpio pin without request. Add gpio_request()
    into zylonite. To simplify the code, error checking is omitted since this
    is being performed early.
    Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@marvell.com>
    Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
    eb906911
zylonite_pxa320.c 5.19 KB