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| author |   Vadim Pasternak <vadimp@mellanox.com> | 2018-02-13 22:09:34 +0000 |
|---|---|---|
| committer |   Darren Hart (VMware) <dvhart@infradead.org> | 2018-03-23 16:14:28 -0700 |
| commit | d726f6b1997528354e1053accbb6223981e81802 (patch) | |
| tree | 86922fc85a8de11ef2d56dfe780f140d92e16bc7 /include/linux/platform_data | |
| parent | platform/x86: mlx-platform: Use define for the channel numbers (diff) | |
| download | linux-dev-d726f6b1997528354e1053accbb6223981e81802.tar.xz linux-dev-d726f6b1997528354e1053accbb6223981e81802.zip | |
platform/x86: mlx-platform: Add deffered bus functionality
mlx-platform activates i2c-mux-reg, which creates buses needed by
mlxreg-hotplug. If the mlxreg-hotplug probe runs before the i2c-mux-reg
probe completes, it may attempt to connect a device to an adapter number
that has not been created yet, and fail.
Make mlx-platform driver record the highest bus number in mlxreg-hotplug
platform data and defer mlxreg-hotplug probe until all the buses are
created.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
[dvhart: rewrite commit message more concisely]
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/mlxreg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/platform_data/mlxreg.h b/include/linux/platform_data/mlxreg.h index fcdc707eab99..262910967476 100644 --- a/include/linux/platform_data/mlxreg.h +++ b/include/linux/platform_data/mlxreg.h @@ -129,6 +129,7 @@ struct mlxreg_core_platform_data { * @mask: top aggregation interrupt common mask; * @cell_low: location of low aggregation interrupt register; * @mask_low: low aggregation interrupt common mask; + * @deferred_nr: I2C adapter number must be exist prior probing execution; */ struct mlxreg_core_hotplug_platform_data { struct mlxreg_core_item *items; @@ -139,6 +140,7 @@ struct mlxreg_core_hotplug_platform_data { u32 mask; u32 cell_low; u32 mask_low; + int deferred_nr; }; #endif /* __LINUX_PLATFORM_DATA_MLXREG_H */ |