From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/mfd/stmpe.c | 86 ++++++++++++++++++++++++++++++++++++++----
1 files changed, 77 insertions(+), 9 deletions(-)
diff --git a/kernel/drivers/mfd/stmpe.c b/kernel/drivers/mfd/stmpe.c
index 722ad2c..7f758fb 100644
--- a/kernel/drivers/mfd/stmpe.c
+++ b/kernel/drivers/mfd/stmpe.c
@@ -1,9 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ST Microelectronics MFD: stmpe's driver
*
* Copyright (C) ST-Ericsson SA 2010
*
- * License Terms: GNU General Public License, version 2
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
*/
@@ -464,6 +464,28 @@
};
/*
+ * ADC (STMPE811)
+ */
+
+static struct resource stmpe_adc_resources[] = {
+ {
+ .name = "STMPE_TEMP_SENS",
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "STMPE_ADC",
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static const struct mfd_cell stmpe_adc_cell = {
+ .name = "stmpe-adc",
+ .of_compatible = "st,stmpe-adc",
+ .resources = stmpe_adc_resources,
+ .num_resources = ARRAY_SIZE(stmpe_adc_resources),
+};
+
+/*
* STMPE811 or STMPE610
*/
@@ -497,6 +519,11 @@
.irq = STMPE811_IRQ_TOUCH_DET,
.block = STMPE_BLOCK_TOUCHSCREEN,
},
+ {
+ .cell = &stmpe_adc_cell,
+ .irq = STMPE811_IRQ_TEMP_SENS,
+ .block = STMPE_BLOCK_ADC,
+ },
};
static int stmpe811_enable(struct stmpe *stmpe, unsigned int blocks,
@@ -516,6 +543,35 @@
return __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL2], mask,
enable ? 0 : mask);
}
+
+int stmpe811_adc_common_init(struct stmpe *stmpe)
+{
+ int ret;
+ u8 adc_ctrl1, adc_ctrl1_mask;
+
+ adc_ctrl1 = STMPE_SAMPLE_TIME(stmpe->sample_time) |
+ STMPE_MOD_12B(stmpe->mod_12b) |
+ STMPE_REF_SEL(stmpe->ref_sel);
+ adc_ctrl1_mask = STMPE_SAMPLE_TIME(0xff) | STMPE_MOD_12B(0xff) |
+ STMPE_REF_SEL(0xff);
+
+ ret = stmpe_set_bits(stmpe, STMPE811_REG_ADC_CTRL1,
+ adc_ctrl1_mask, adc_ctrl1);
+ if (ret) {
+ dev_err(stmpe->dev, "Could not setup ADC\n");
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE811_REG_ADC_CTRL2,
+ STMPE_ADC_FREQ(0xff), STMPE_ADC_FREQ(stmpe->adc_freq));
+ if (ret) {
+ dev_err(stmpe->dev, "Could not setup ADC\n");
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(stmpe811_adc_common_init);
static int stmpe811_get_altfunc(struct stmpe *stmpe, enum stmpe_block block)
{
@@ -1302,17 +1358,17 @@
pdata->autosleep = (pdata->autosleep_timeout) ? true : false;
for_each_child_of_node(np, child) {
- if (!strcmp(child->name, "stmpe_gpio")) {
+ if (of_node_name_eq(child, "stmpe_gpio")) {
pdata->blocks |= STMPE_BLOCK_GPIO;
- } else if (!strcmp(child->name, "stmpe_keypad")) {
+ } else if (of_node_name_eq(child, "stmpe_keypad")) {
pdata->blocks |= STMPE_BLOCK_KEYPAD;
- } else if (!strcmp(child->name, "stmpe_touchscreen")) {
+ } else if (of_node_name_eq(child, "stmpe_touchscreen")) {
pdata->blocks |= STMPE_BLOCK_TOUCHSCREEN;
- } else if (!strcmp(child->name, "stmpe_adc")) {
+ } else if (of_node_name_eq(child, "stmpe_adc")) {
pdata->blocks |= STMPE_BLOCK_ADC;
- } else if (!strcmp(child->name, "stmpe_pwm")) {
+ } else if (of_node_name_eq(child, "stmpe_pwm")) {
pdata->blocks |= STMPE_BLOCK_PWM;
- } else if (!strcmp(child->name, "stmpe_rotator")) {
+ } else if (of_node_name_eq(child, "stmpe_rotator")) {
pdata->blocks |= STMPE_BLOCK_ROTATOR;
}
}
@@ -1325,6 +1381,7 @@
struct device_node *np = ci->dev->of_node;
struct stmpe *stmpe;
int ret;
+ u32 val;
pdata = devm_kzalloc(ci->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@@ -1341,6 +1398,15 @@
mutex_init(&stmpe->irq_lock);
mutex_init(&stmpe->lock);
+
+ if (!of_property_read_u32(np, "st,sample-time", &val))
+ stmpe->sample_time = val;
+ if (!of_property_read_u32(np, "st,mod-12b", &val))
+ stmpe->mod_12b = val;
+ if (!of_property_read_u32(np, "st,ref-sel", &val))
+ stmpe->ref_sel = val;
+ if (!of_property_read_u32(np, "st,adc-freq", &val))
+ stmpe->adc_freq = val;
stmpe->dev = ci->dev;
stmpe->client = ci->client;
@@ -1428,11 +1494,13 @@
int stmpe_remove(struct stmpe *stmpe)
{
- if (!IS_ERR(stmpe->vio))
+ if (!IS_ERR(stmpe->vio) && regulator_is_enabled(stmpe->vio))
regulator_disable(stmpe->vio);
- if (!IS_ERR(stmpe->vcc))
+ if (!IS_ERR(stmpe->vcc) && regulator_is_enabled(stmpe->vcc))
regulator_disable(stmpe->vcc);
+ __stmpe_disable(stmpe, STMPE_BLOCK_ADC);
+
mfd_remove_devices(stmpe->dev);
return 0;
--
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