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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c new file mode 100644 index 000000000..e5bad085c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c @@ -0,0 +1,73 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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 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 HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ +#include "priv.h" +#include "pad.h" + +void +g94_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 intr = nvkm_rd32(device, 0x00e06c); + u32 stat = nvkm_rd32(device, 0x00e068) & intr, i; + for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { + if ((stat & (1 << (i * 4)))) *hi |= 1 << i; + if ((stat & (2 << (i * 4)))) *lo |= 1 << i; + if ((stat & (4 << (i * 4)))) *rq |= 1 << i; + if ((stat & (8 << (i * 4)))) *tx |= 1 << i; + } + nvkm_wr32(device, 0x00e06c, intr); +} + +void +g94_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 temp = nvkm_rd32(device, 0x00e068), i; + for (i = 0; i < 8; i++) { + if (mask & (1 << i)) { + if (!(data & (1 << i))) { + temp &= ~(type << (i * 4)); + continue; + } + temp |= type << (i * 4); + } + } + nvkm_wr32(device, 0x00e068, temp); +} + +static const struct nvkm_i2c_func +g94_i2c = { + .pad_x_new = g94_i2c_pad_x_new, + .pad_s_new = g94_i2c_pad_s_new, + .aux = 4, + .aux_stat = g94_aux_stat, + .aux_mask = g94_aux_mask, +}; + +int +g94_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&g94_i2c, device, type, inst, pi2c); +} |