From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c | 115 +++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c') diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c new file mode 100644 index 000000000..2b2951542 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c @@ -0,0 +1,115 @@ +/* + * Copyright (C) 2009 Francisco Jerez. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include "priv.h" + +static int +nv10_gpio_sense(struct nvkm_gpio *gpio, int line) +{ + if (line < 2) { + line = line * 16; + line = nv_rd32(gpio, 0x600818) >> line; + return !!(line & 0x0100); + } else + if (line < 10) { + line = (line - 2) * 4; + line = nv_rd32(gpio, 0x60081c) >> line; + return !!(line & 0x04); + } else + if (line < 14) { + line = (line - 10) * 4; + line = nv_rd32(gpio, 0x600850) >> line; + return !!(line & 0x04); + } + + return -EINVAL; +} + +static int +nv10_gpio_drive(struct nvkm_gpio *gpio, int line, int dir, int out) +{ + u32 reg, mask, data; + + if (line < 2) { + line = line * 16; + reg = 0x600818; + mask = 0x00000011; + data = (dir << 4) | out; + } else + if (line < 10) { + line = (line - 2) * 4; + reg = 0x60081c; + mask = 0x00000003; + data = (dir << 1) | out; + } else + if (line < 14) { + line = (line - 10) * 4; + reg = 0x600850; + mask = 0x00000003; + data = (dir << 1) | out; + } else { + return -EINVAL; + } + + nv_mask(gpio, reg, mask << line, data << line); + return 0; +} + +static void +nv10_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo) +{ + u32 intr = nv_rd32(gpio, 0x001104); + u32 stat = nv_rd32(gpio, 0x001144) & intr; + *lo = (stat & 0xffff0000) >> 16; + *hi = (stat & 0x0000ffff); + nv_wr32(gpio, 0x001104, intr); +} + +static void +nv10_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data) +{ + u32 inte = nv_rd32(gpio, 0x001144); + if (type & NVKM_GPIO_LO) + inte = (inte & ~(mask << 16)) | (data << 16); + if (type & NVKM_GPIO_HI) + inte = (inte & ~mask) | data; + nv_wr32(gpio, 0x001144, inte); +} + +struct nvkm_oclass * +nv10_gpio_oclass = &(struct nvkm_gpio_impl) { + .base.handle = NV_SUBDEV(GPIO, 0x10), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = _nvkm_gpio_ctor, + .dtor = _nvkm_gpio_dtor, + .init = _nvkm_gpio_init, + .fini = _nvkm_gpio_fini, + }, + .lines = 16, + .intr_stat = nv10_gpio_intr_stat, + .intr_mask = nv10_gpio_intr_mask, + .drive = nv10_gpio_drive, + .sense = nv10_gpio_sense, +}.base; -- cgit 1.2.3-korg