lkml.org 
[lkml]   [2016]   [Mar]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 03/15] MIPS: PCI: Compatibility with ARM-like PCI host drivers
From
Date
Le 03/02/2016 03:30, Paul Burton a écrit :
> Introduce support for struct hw_pci & the associated pci_common_init_dev
> function as used by the PCI drivers written for ARM platforms under
> drivers/pci. This is in preparation for reusing the xilinx-pcie driver
> on the MIPS Boston board.
>
> Platforms that make use of this more generic code will need to select
> CONFIG_MIPS_GENERIC_PCI. Platforms which don't will continue to work as
> they have, with the intent that PCI drivers be migrated towards struct
> hw_pci & drivers/pci/ over time.
>
> Signed-off-by: Paul Burton <paul.burton@imgtec.com>
> ---

[snip]

> + if (hw->preinit)
> + hw->preinit();
> +
> + ret = hw->setup(i, &ctl->sysdata);
> + if (ret < 0) {

This needs to be ret <= 0 to be compliant with what ARM PCI host
controllers do, which is return 1 in case they could get hw->setup to
finish with success, and 0 or negative if they could not, see
arch/arm/kernel/bios32.c.
--
Florian

\
 
 \ /
  Last update: 2016-03-30 01:41    [W:0.082 / U:0.772 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site