samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

disp: msm: dp: fix configuration of aux switches and HPD sources

Browse Source 
Decouple the configuration and parsing of aux switches with the
parsing and configuration of HPD sources. HPD notification can come from
either GPIO based approach or a PD module through a SW interface. The
presence of AUX switch on the board should have no bearing in deciding
which configuration for HPD detection is used. Update the implementation
to allow for flexibility in selecting any combination of the HPD source
and aux switches.

Change-Id: I96d558f1d88a359d523fae6dc746045393884d5a
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Signed-off-by: Rajkumar Subbiah <quic_rsubbia@quicinc.com>
Signed-off-by: Sandeep Gangadharaiah <quic_sandgang@quicinc.com>
This commit is contained in:
Aravind Venkateswaran
2020-09-29 20:06:08 -07:00
committed by Sandeep Gangadharaiah
parent 135e318102
commit 78c45e9d5d
9 changed files with 67 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
msm/dp/dp_gpio_hpd.c
View File

@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021-2022, Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
*/
@@ -218,6 +219,7 @@ struct dp_hpd *dp_gpio_hpd_get(struct device *dev,
const char *hpd_gpio_name = "qcom,dp-hpd-gpio";
struct dp_gpio_hpd_private *gpio_hpd;
struct dp_pinctrl pinctrl = {0};
unsigned int gpio;
if (!dev || !cb) {
DP_ERR("invalid device\n");
@@ -225,6 +227,13 @@ struct dp_hpd *dp_gpio_hpd_get(struct device *dev,
goto error;
}
gpio = of_get_named_gpio(dev->of_node, hpd_gpio_name, 0);
if (!gpio_is_valid(gpio)) {
DP_DEBUG("%s gpio not specified\n", hpd_gpio_name);
rc = -EINVAL;
goto error;
}
gpio_hpd = devm_kzalloc(dev, sizeof(*gpio_hpd), GFP_KERNEL);
if (!gpio_hpd) {
rc = -ENOMEM;
@@ -245,14 +254,7 @@ struct dp_hpd *dp_gpio_hpd_get(struct device *dev,
}
}
gpio_hpd->gpio_cfg.gpio = of_get_named_gpio(dev->of_node,
hpd_gpio_name, 0);
if (!gpio_is_valid(gpio_hpd->gpio_cfg.gpio)) {
DP_ERR("%s gpio not specified\n", hpd_gpio_name);
rc = -EINVAL;
goto gpio_error;
}
gpio_hpd->gpio_cfg.gpio = gpio;
strlcpy(gpio_hpd->gpio_cfg.gpio_name, hpd_gpio_name,
sizeof(gpio_hpd->gpio_cfg.gpio_name));
gpio_hpd->gpio_cfg.value = 0;