From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/drivers/pinctrl/sprd/pinctrl-sprd.c | 105 +++++++++++++++++++++++++++++++---------------------
1 files changed, 62 insertions(+), 43 deletions(-)
diff --git a/kernel/drivers/pinctrl/sprd/pinctrl-sprd.c b/kernel/drivers/pinctrl/sprd/pinctrl-sprd.c
index 8f3468d..08dc193 100644
--- a/kernel/drivers/pinctrl/sprd/pinctrl-sprd.c
+++ b/kernel/drivers/pinctrl/sprd/pinctrl-sprd.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Spreadtrum pin controller driver
* Copyright (C) 2017 Spreadtrum - http://www.spreadtrum.com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
#include <linux/debugfs.h>
@@ -49,7 +41,8 @@
#define PUBCP_SLEEP_MODE BIT(14)
#define TGLDSP_SLEEP_MODE BIT(15)
#define AGDSP_SLEEP_MODE BIT(16)
-#define SLEEP_MODE_MASK GENMASK(3, 0)
+#define CM4_SLEEP_MODE BIT(17)
+#define SLEEP_MODE_MASK GENMASK(5, 0)
#define SLEEP_MODE_SHIFT 13
#define SLEEP_INPUT BIT(1)
@@ -75,8 +68,8 @@
#define SLEEP_PULL_UP_MASK 0x1
#define SLEEP_PULL_UP_SHIFT 3
-#define PULL_UP_20K (BIT(12) | BIT(7))
-#define PULL_UP_4_7K BIT(12)
+#define PULL_UP_4_7K (BIT(12) | BIT(7))
+#define PULL_UP_20K BIT(7)
#define PULL_UP_MASK 0x21
#define PULL_UP_SHIFT 7
@@ -89,6 +82,7 @@
PUBCP_SLEEP = BIT(1),
TGLDSP_SLEEP = BIT(2),
AGDSP_SLEEP = BIT(3),
+ CM4_SLEEP = BIT(4),
};
enum pin_func_sel {
@@ -462,7 +456,7 @@
if (pin->type == GLOBAL_CTRL_PIN &&
param == SPRD_PIN_CONFIG_CONTROL) {
arg = reg;
- } else if (pin->type == COMMON_PIN) {
+ } else if (pin->type == COMMON_PIN || pin->type == MISC_PIN) {
switch (param) {
case SPRD_PIN_CONFIG_SLEEP_MODE:
arg = (reg >> SLEEP_MODE_SHIFT) & SLEEP_MODE_MASK;
@@ -470,17 +464,15 @@
case PIN_CONFIG_INPUT_ENABLE:
arg = (reg >> SLEEP_INPUT_SHIFT) & SLEEP_INPUT_MASK;
break;
- case PIN_CONFIG_OUTPUT:
+ case PIN_CONFIG_OUTPUT_ENABLE:
arg = reg & SLEEP_OUTPUT_MASK;
break;
- case PIN_CONFIG_SLEEP_HARDWARE_STATE:
- arg = 0;
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ if ((reg & SLEEP_OUTPUT) || (reg & SLEEP_INPUT))
+ return -EINVAL;
+
+ arg = 1;
break;
- default:
- return -ENOTSUPP;
- }
- } else if (pin->type == MISC_PIN) {
- switch (param) {
case PIN_CONFIG_DRIVE_STRENGTH:
arg = (reg >> DRIVE_STRENGTH_SHIFT) &
DRIVE_STRENGTH_MASK;
@@ -499,6 +491,13 @@
arg = ((reg >> SLEEP_PULL_UP_SHIFT) &
SLEEP_PULL_UP_MASK) << 16;
arg |= (reg >> PULL_UP_SHIFT) & PULL_UP_MASK;
+ break;
+ case PIN_CONFIG_BIAS_DISABLE:
+ if ((reg & (SLEEP_PULL_DOWN | SLEEP_PULL_UP)) ||
+ (reg & (PULL_DOWN | PULL_UP_4_7K | PULL_UP_20K)))
+ return -EINVAL;
+
+ arg = 1;
break;
case PIN_CONFIG_SLEEP_HARDWARE_STATE:
arg = 0;
@@ -614,7 +613,7 @@
if (pin->type == GLOBAL_CTRL_PIN &&
param == SPRD_PIN_CONFIG_CONTROL) {
val = arg;
- } else if (pin->type == COMMON_PIN) {
+ } else if (pin->type == COMMON_PIN || pin->type == MISC_PIN) {
switch (param) {
case SPRD_PIN_CONFIG_SLEEP_MODE:
if (arg & AP_SLEEP)
@@ -625,6 +624,8 @@
val |= TGLDSP_SLEEP_MODE;
if (arg & AGDSP_SLEEP)
val |= AGDSP_SLEEP_MODE;
+ if (arg & CM4_SLEEP)
+ val |= CM4_SLEEP_MODE;
mask = SLEEP_MODE_MASK;
shift = SLEEP_MODE_SHIFT;
@@ -640,20 +641,23 @@
shift = SLEEP_INPUT_SHIFT;
}
break;
- case PIN_CONFIG_OUTPUT:
+ case PIN_CONFIG_OUTPUT_ENABLE:
if (is_sleep_config == true) {
- val |= SLEEP_OUTPUT;
+ if (arg > 0)
+ val |= SLEEP_OUTPUT;
+ else
+ val &= ~SLEEP_OUTPUT;
+
mask = SLEEP_OUTPUT_MASK;
shift = SLEEP_OUTPUT_SHIFT;
}
break;
- case PIN_CONFIG_SLEEP_HARDWARE_STATE:
- continue;
- default:
- return -ENOTSUPP;
- }
- } else if (pin->type == MISC_PIN) {
- switch (param) {
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ if (is_sleep_config == true) {
+ val = shift = 0;
+ mask = SLEEP_OUTPUT | SLEEP_INPUT;
+ }
+ break;
case PIN_CONFIG_DRIVE_STRENGTH:
if (arg < 2 || arg > 60)
return -EINVAL;
@@ -695,6 +699,16 @@
mask = PULL_UP_MASK;
shift = PULL_UP_SHIFT;
+ }
+ break;
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (is_sleep_config == true) {
+ val = shift = 0;
+ mask = SLEEP_PULL_DOWN | SLEEP_PULL_UP;
+ } else {
+ val = shift = 0;
+ mask = PULL_DOWN | PULL_UP_20K |
+ PULL_UP_4_7K;
}
break;
case PIN_CONFIG_SLEEP_HARDWARE_STATE:
@@ -948,8 +962,10 @@
for_each_child_of_node(np, child) {
ret = sprd_pinctrl_parse_groups(child, sprd_pctl, grp);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ret;
+ }
*temp++ = grp->name;
grp++;
@@ -958,8 +974,11 @@
for_each_child_of_node(child, sub_child) {
ret = sprd_pinctrl_parse_groups(sub_child,
sprd_pctl, grp);
- if (ret)
+ if (ret) {
+ of_node_put(sub_child);
+ of_node_put(child);
return ret;
+ }
*temp++ = grp->name;
grp++;
@@ -1028,7 +1047,6 @@
struct sprd_pinctrl *sprd_pctl;
struct sprd_pinctrl_soc_info *pinctrl_info;
struct pinctrl_pin_desc *pin_desc;
- struct resource *res;
int ret, i;
sprd_pctl = devm_kzalloc(&pdev->dev, sizeof(struct sprd_pinctrl),
@@ -1036,8 +1054,7 @@
if (!sprd_pctl)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- sprd_pctl->base = devm_ioremap_resource(&pdev->dev, res);
+ sprd_pctl->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(sprd_pctl->base))
return PTR_ERR(sprd_pctl->base);
@@ -1054,6 +1071,12 @@
ret = sprd_pinctrl_add_pins(sprd_pctl, sprd_soc_pin_info, pins_cnt);
if (ret) {
dev_err(&pdev->dev, "fail to add pins information\n");
+ return ret;
+ }
+
+ ret = sprd_pinctrl_parse_dt(sprd_pctl);
+ if (ret) {
+ dev_err(&pdev->dev, "fail to parse dt properties\n");
return ret;
}
@@ -1081,15 +1104,9 @@
return PTR_ERR(sprd_pctl->pctl);
}
- ret = sprd_pinctrl_parse_dt(sprd_pctl);
- if (ret) {
- dev_err(&pdev->dev, "fail to parse dt properties\n");
- pinctrl_unregister(sprd_pctl->pctl);
- return ret;
- }
-
return 0;
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_core_probe);
int sprd_pinctrl_remove(struct platform_device *pdev)
{
@@ -1098,6 +1115,7 @@
pinctrl_unregister(sprd_pctl->pctl);
return 0;
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_remove);
void sprd_pinctrl_shutdown(struct platform_device *pdev)
{
@@ -1112,6 +1130,7 @@
return;
pinctrl_select_state(pinctl, state);
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_shutdown);
MODULE_DESCRIPTION("SPREADTRUM Pin Controller Driver");
MODULE_AUTHOR("Baolin Wang <baolin.wang@spreadtrum.com>");
--
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