Release 4.15 drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c
/*
* Copyright 2012-15 Advanced Micro Devices, 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: AMD
*
*/
#include "dm_services.h"
#include "include/gpio_types.h"
#include "hw_gpio.h"
#include "hw_hpd.h"
#include "reg_helper.h"
#include "hpd_regs.h"
#undef FN
#define FN(reg_name, field_name) \
hpd->shifts->field_name, hpd->masks->field_name
#define CTX \
hpd->base.base.ctx
#define REG(reg)\
(hpd->regs->reg)
static void dal_hw_hpd_construct(
struct hw_hpd *pin,
enum gpio_id id,
uint32_t en,
struct dc_context *ctx)
{
dal_hw_gpio_construct(&pin->base, id, en, ctx);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 35 | 94.59% | 1 | 50.00% |
| Dave Airlie | 2 | 5.41% | 1 | 50.00% |
| Total | 37 | 100.00% | 2 | 100.00% |
static void dal_hw_hpd_destruct(
struct hw_hpd *pin)
{
dal_hw_gpio_destruct(&pin->base);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
static void destruct(
struct hw_hpd *hpd)
{
dal_hw_hpd_destruct(hpd);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
static void destroy(
struct hw_gpio_pin **ptr)
{
struct hw_hpd *hpd = HW_HPD_FROM_BASE(*ptr);
destruct(hpd);
kfree(hpd);
*ptr = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 38 | 100.00% | 2 | 100.00% |
| Total | 38 | 100.00% | 2 | 100.00% |
static enum gpio_result get_value(
const struct hw_gpio_pin *ptr,
uint32_t *value)
{
struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr);
uint32_t hpd_delayed = 0;
/* in Interrupt mode we ask for SENSE bit */
if (ptr->mode == GPIO_MODE_INTERRUPT) {
REG_GET(int_status,
DC_HPD_SENSE_DELAYED, &hpd_delayed);
*value = hpd_delayed;
return GPIO_RESULT_OK;
}
/* in any other modes, operate as normal GPIO */
return dal_hw_gpio_get_value(ptr, value);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 70 | 100.00% | 1 | 100.00% |
| Total | 70 | 100.00% | 1 | 100.00% |
static enum gpio_result set_config(
struct hw_gpio_pin *ptr,
const struct gpio_config_data *config_data)
{
struct hw_hpd *hpd = HW_HPD_FROM_BASE(ptr);
if (!config_data)
return GPIO_RESULT_INVALID_DATA;
REG_UPDATE_2(toggle_filt_cntl,
DC_HPD_CONNECT_INT_DELAY, config_data->config.hpd.delay_on_connect / 10,
DC_HPD_DISCONNECT_INT_DELAY, config_data->config.hpd.delay_on_disconnect / 10);
return GPIO_RESULT_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 68 | 100.00% | 1 | 100.00% |
| Total | 68 | 100.00% | 1 | 100.00% |
static const struct hw_gpio_pin_funcs funcs = {
.destroy = destroy,
.open = dal_hw_gpio_open,
.get_value = get_value,
.set_value = dal_hw_gpio_set_value,
.set_config = set_config,
.change_mode = dal_hw_gpio_change_mode,
.close = dal_hw_gpio_close,
};
static void construct(
struct hw_hpd *hpd,
enum gpio_id id,
uint32_t en,
struct dc_context *ctx)
{
dal_hw_hpd_construct(hpd, id, en, ctx);
hpd->base.base.funcs = &funcs;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 44 | 97.78% | 1 | 50.00% |
| Dave Airlie | 1 | 2.22% | 1 | 50.00% |
| Total | 45 | 100.00% | 2 | 100.00% |
struct hw_gpio_pin *dal_hw_hpd_create(
struct dc_context *ctx,
enum gpio_id id,
uint32_t en)
{
struct hw_hpd *hpd;
if (id != GPIO_ID_HPD) {
ASSERT_CRITICAL(false);
return NULL;
}
if ((en < GPIO_HPD_MIN) || (en > GPIO_HPD_MAX)) {
ASSERT_CRITICAL(false);
return NULL;
}
hpd = kzalloc(sizeof(struct hw_hpd), GFP_KERNEL);
if (!hpd) {
ASSERT_CRITICAL(false);
return NULL;
}
construct(hpd, id, en, ctx);
return &hpd->base.base;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 66 | 59.46% | 2 | 66.67% |
| Dave Airlie | 45 | 40.54% | 1 | 33.33% |
| Total | 111 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Harry Wentland | 444 | 90.24% | 2 | 66.67% |
| Dave Airlie | 48 | 9.76% | 1 | 33.33% |
| Total | 492 | 100.00% | 3 | 100.00% |
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