/* * Copyright (c) by Jaroslav Kysela * DRAM access routines * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include static int snd_gus_dram_poke(struct snd_gus_card *gus, char __user *_buffer, unsigned int address, unsigned int size) { unsigned long flags; unsigned int size1, size2; char buffer[256], *pbuffer; while (size > 0) { size1 = size > sizeof(buffer) ? sizeof(buffer) : size; if (copy_from_user(buffer, _buffer, size1)) return -EFAULT; if (gus->interwave) { spin_lock_irqsave(&gus->reg_lock, flags); snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01); snd_gf1_dram_addr(gus, address); outsb(GUSP(gus, DRAM), buffer, size1); spin_unlock_irqrestore(&gus->reg_lock, flags); address += size1; } else { pbuffer = buffer; size2 = size1; while (size2--) snd_gf1_poke(gus, address++, *pbuffer++); } size -= size1; _buffer += size1; } return 0; } int snd_gus_dram_write(struct snd_gus_card *gus, char __user *buffer, unsigned int address, unsigned int size) { return snd_gus_dram_poke(gus, buffer, address, size); } static int snd_gus_dram_peek(struct snd_gus_card *gus, char __user *_buffer, unsigned int address, unsigned int size, int rom) { unsigned long flags; unsigned int size1, size2; char buffer[256], *pbuffer; while (size > 0) { size1 = size > sizeof(buffer) ? sizeof(buffer) : size; if (gus->interwave) { spin_lock_irqsave(&gus->reg_lock, flags); snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, rom ? 0x03 : 0x01); snd_gf1_dram_addr(gus, address); insb(GUSP(gus, DRAM), buffer, size1); snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01); spin_unlock_irqrestore(&gus->reg_lock, flags); address += size1; } else { pbuffer = buffer; size2 = size1; while (size2--) *pbuffer++ = snd_gf1_peek(gus, address++); } if (copy_to_user(_buffer, buffer, size1)) return -EFAULT; size -= size1; _buffer += size1; } return 0; } int snd_gus_dram_read(struct snd_gus_card *gus, char __user *buffer, unsigned int address, unsigned int size, int rom) { return snd_gus_dram_peek(gus, buffer, address, size, rom); } '/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&id=205321f0927ad2303e7f71767d402e0ff36a9a87'>root/sound/usb/usx2y/usx2yhwdeppcm.c
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authorLokesh Vutla <lokeshvutla@ti.com>2016-11-10 10:59:15 +0530
committerMark Brown <broonie@kernel.org>2016-11-11 15:36:38 +0000
commit205321f0927ad2303e7f71767d402e0ff36a9a87 (patch)
treefc103f416e5df36a8a2a6c5d88f24f4f6c5a65bc /sound/usb/usx2y/usx2yhwdeppcm.c
parent1001354ca34179f3db924eb66672442a173147dc (diff)
regulator: lp873x: Add support for populating input supply
In order to have a proper topology of regulators for a platform, each registering regulator needs to populate supply_name field for identifying its supply's name. Add supply_name field for lp873x regulators. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/usb/usx2y/usx2yhwdeppcm.c')