3709853456
This change brings msm display driver including sde, dp, dsi, rotator, dsi pll and dp pll from base 4.19 kernel project. It is first source code snapshot from base kernel project. Change-Id: Iec864c064ce5ea04e170f24414c728684002f284 Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
100 líneas
2.0 KiB
C
100 líneas
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/device.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/err.h>
|
|
|
|
#include "dp_hpd.h"
|
|
#include "dp_usbpd.h"
|
|
#include "dp_gpio_hpd.h"
|
|
#include "dp_lphw_hpd.h"
|
|
|
|
static void dp_hpd_host_init(struct dp_hpd *dp_hpd,
|
|
struct dp_catalog_hpd *catalog)
|
|
{
|
|
if (!catalog) {
|
|
pr_err("invalid input\n");
|
|
return;
|
|
}
|
|
catalog->config_hpd(catalog, true);
|
|
}
|
|
|
|
static void dp_hpd_host_deinit(struct dp_hpd *dp_hpd,
|
|
struct dp_catalog_hpd *catalog)
|
|
{
|
|
if (!catalog) {
|
|
pr_err("invalid input\n");
|
|
return;
|
|
}
|
|
catalog->config_hpd(catalog, false);
|
|
}
|
|
|
|
static void dp_hpd_isr(struct dp_hpd *dp_hpd)
|
|
{
|
|
}
|
|
|
|
struct dp_hpd *dp_hpd_get(struct device *dev, struct dp_parser *parser,
|
|
struct dp_catalog_hpd *catalog, struct dp_hpd_cb *cb)
|
|
{
|
|
struct dp_hpd *dp_hpd;
|
|
|
|
if (parser->no_aux_switch && parser->lphw_hpd) {
|
|
dp_hpd = dp_lphw_hpd_get(dev, parser, catalog, cb);
|
|
if (IS_ERR(dp_hpd)) {
|
|
pr_err("failed to get lphw hpd\n");
|
|
return dp_hpd;
|
|
}
|
|
dp_hpd->type = DP_HPD_LPHW;
|
|
} else if (parser->no_aux_switch) {
|
|
dp_hpd = dp_gpio_hpd_get(dev, cb);
|
|
if (IS_ERR(dp_hpd)) {
|
|
pr_err("failed to get gpio hpd\n");
|
|
return dp_hpd;
|
|
}
|
|
dp_hpd->type = DP_HPD_GPIO;
|
|
} else {
|
|
dp_hpd = dp_usbpd_get(dev, cb);
|
|
if (IS_ERR(dp_hpd)) {
|
|
pr_err("failed to get usbpd\n");
|
|
return dp_hpd;
|
|
}
|
|
dp_hpd->type = DP_HPD_USBPD;
|
|
}
|
|
|
|
if (!dp_hpd->host_init)
|
|
dp_hpd->host_init = dp_hpd_host_init;
|
|
if (!dp_hpd->host_deinit)
|
|
dp_hpd->host_deinit = dp_hpd_host_deinit;
|
|
if (!dp_hpd->isr)
|
|
dp_hpd->isr = dp_hpd_isr;
|
|
|
|
return dp_hpd;
|
|
}
|
|
|
|
void dp_hpd_put(struct dp_hpd *dp_hpd)
|
|
{
|
|
if (!dp_hpd)
|
|
return;
|
|
|
|
switch (dp_hpd->type) {
|
|
case DP_HPD_USBPD:
|
|
dp_usbpd_put(dp_hpd);
|
|
break;
|
|
case DP_HPD_GPIO:
|
|
dp_gpio_hpd_put(dp_hpd);
|
|
break;
|
|
case DP_HPD_LPHW:
|
|
dp_lphw_hpd_put(dp_hpd);
|
|
break;
|
|
default:
|
|
pr_err("unknown hpd type %d\n", dp_hpd->type);
|
|
break;
|
|
}
|
|
}
|