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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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277d32a36c
This patch changes the way how the various I2C busses are used internally
inside the viafb driver: Previosuly, only a single i2c_adapter was created,
even though two different hardware I2C busses are accessed: A structure member
in a global variable was modified to indicate the bus to be used.
Now, all existing hardware busses are registered with the i2c core, and the
viafb_i2c_{read,write}byte[s]() function take the adapter number as function
call parameter, rather than referring to the global structure member.
[jc: even more painful merge with mainline changes ->2.6.34]
[jc: painful merge with OLPC changes]
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _VT1636_H_
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#define _VT1636_H_
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#include "chip.h"
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bool viafb_lvds_identify_vt1636(u8 i2c_adapter);
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void viafb_init_lvds_vt1636(struct lvds_setting_information
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*plvds_setting_info, struct lvds_chip_information *plvds_chip_info);
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void viafb_enable_lvds_vt1636(struct lvds_setting_information
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*plvds_setting_info,
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struct lvds_chip_information *plvds_chip_info);
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void viafb_disable_lvds_vt1636(struct lvds_setting_information
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*plvds_setting_info,
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struct lvds_chip_information *plvds_chip_info);
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void viafb_vt1636_patch_skew_on_vt3324(
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struct lvds_setting_information *plvds_setting_info,
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struct lvds_chip_information *plvds_chip_info);
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void viafb_vt1636_patch_skew_on_vt3327(
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struct lvds_setting_information *plvds_setting_info,
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struct lvds_chip_information *plvds_chip_info);
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void viafb_vt1636_patch_skew_on_vt3364(
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struct lvds_setting_information *plvds_setting_info,
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struct lvds_chip_information *plvds_chip_info);
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#endif
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