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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8d09a1bb31
Don't use Amstrad Delta custom I/O functions once GPIO interface is available for the underlying hardware. While requesting and initializing GPIO pins used, also take care of one extra pin KEYBRD_DATAOUT which, even if not used by the driver, belongs to the device and affects its functioning. Once done, move the driver initialization back to the device_initcall level, reverting the temporary chane introduced with patch 1/7 "ARM: OMAP1: ams-delta: register latch dependent devices later". That change is no longer required once the driver takes care of registering used GPIO pins, and it's better to initialize the device before others using the latch2 based GPIO pins, otherwise a garbage is reported on boot, perhaps due to random data already captured by the FIQ handler while the keyboard related latch bits are written with random values during initialization of those other latch2 dependent devices. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Acked-by: Dmitry Torokhov <dtor@mail.ru> [tony@atomide.com: renamed _gpios to ams_delta_gpios] Signed-off-by: Tony Lindgren <tony@atomide.com>
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
/*
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* arch/arm/plat-omap/include/mach/board-ams-delta.h
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*
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* Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ASM_ARCH_OMAP_AMS_DELTA_H
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#define __ASM_ARCH_OMAP_AMS_DELTA_H
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#if defined (CONFIG_MACH_AMS_DELTA)
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#define AMD_DELTA_LATCH2_SCARD_RSTIN 0x0400
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#define AMD_DELTA_LATCH2_SCARD_CMDVCC 0x0800
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#define AMS_DELTA_LATCH2_MODEM_NRESET 0x1000
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#define AMS_DELTA_LATCH2_MODEM_CODEC 0x2000
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#define AMS_DELTA_GPIO_PIN_KEYBRD_DATA 0
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#define AMS_DELTA_GPIO_PIN_KEYBRD_CLK 1
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#define AMS_DELTA_GPIO_PIN_MODEM_IRQ 2
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#define AMS_DELTA_GPIO_PIN_HOOK_SWITCH 4
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#define AMS_DELTA_GPIO_PIN_SCARD_NOFF 6
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#define AMS_DELTA_GPIO_PIN_SCARD_IO 7
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#define AMS_DELTA_GPIO_PIN_CONFIG 11
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#define AMS_DELTA_GPIO_PIN_NAND_RB 12
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#define AMS_DELTA_GPIO_PIN_LCD_VBLEN 240
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#define AMS_DELTA_GPIO_PIN_LCD_NDISP 241
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#define AMS_DELTA_GPIO_PIN_NAND_NCE 242
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#define AMS_DELTA_GPIO_PIN_NAND_NRE 243
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#define AMS_DELTA_GPIO_PIN_NAND_NWP 244
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#define AMS_DELTA_GPIO_PIN_NAND_NWE 245
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#define AMS_DELTA_GPIO_PIN_NAND_ALE 246
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#define AMS_DELTA_GPIO_PIN_NAND_CLE 247
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#define AMS_DELTA_GPIO_PIN_KEYBRD_PWR 248
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#define AMS_DELTA_GPIO_PIN_KEYBRD_DATAOUT 249
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#define AMS_DELTA_GPIO_PIN_SCARD_RSTIN 250
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#define AMS_DELTA_GPIO_PIN_SCARD_CMDVCC 251
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#define AMS_DELTA_GPIO_PIN_MODEM_NRESET 252
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#define AMS_DELTA_GPIO_PIN_MODEM_CODEC 253
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#define AMS_DELTA_LATCH2_GPIO_BASE AMS_DELTA_GPIO_PIN_LCD_VBLEN
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#define AMS_DELTA_LATCH2_NGPIO 16
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#ifndef __ASSEMBLY__
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void ams_delta_latch_write(int base, int ngpio, u16 mask, u16 value);
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#define ams_delta_latch2_write(mask, value) \
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ams_delta_latch_write(AMS_DELTA_LATCH2_GPIO_BASE, \
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AMS_DELTA_LATCH2_NGPIO, (mask), (value))
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#endif
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#endif /* CONFIG_MACH_AMS_DELTA */
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#endif /* __ASM_ARCH_OMAP_AMS_DELTA_H */
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