cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c

/*
 * 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); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs191100.00%3100.00%
Total191100.00%3100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs117100.00%3100.00%
Total117100.00%3100.00%

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, int index, struct nvkm_i2c **pi2c) { return nvkm_i2c_new_(&g94_i2c, device, index, pi2c); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs32100.00%1100.00%
Total32100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs380100.00%8100.00%
Total380100.00%8100.00%
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