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NFC: st21nfca: Get rid of platform data 

Legacy platform data must go away. We are on the safe side here since
there are no users of it in the kernel.

If anyone by any odd reason needs it the GPIO lookup tables and
built-in device properties at your service.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2017-03-07 12:25:43 +02:00 committed by Samuel Ortiz
parent bacf2a6a05
commit 79557b33cc
2 changed files with 3 additions and 76 deletions
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46
drivers/nfc/st21nfca/i2c.c
View File

@ -20,7 +20,6 @@
#include <linux/crc-ccitt.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/of_irq.h>
#include <linux/of_gpio.h>
@ -29,7 +28,7 @@
#include <linux/delay.h>
#include <linux/nfc.h>
#include <linux/firmware.h>
#include <linux/platform_data/st21nfca.h>
#include <asm/unaligned.h>
#include <net/nfc/hci.h>
@ -59,6 +58,7 @@
#define IS_START_OF_FRAME(buf) (buf[0] == ST21NFCA_SOF_EOF && \
buf[1] == 0)
#define ST21NFCA_HCI_DRIVER_NAME "st21nfca_hci"
#define ST21NFCA_HCI_I2C_DRIVER_NAME "st21nfca_hci_i2c"
#define ST21NFCA_GPIO_NAME_EN "enable"
@ -576,43 +576,10 @@ static int st21nfca_hci_i2c_of_request_resources(struct i2c_client *client)
return 0;
}
static int st21nfca_hci_i2c_request_resources(struct i2c_client *client)
{
struct st21nfca_nfc_platform_data *pdata;
struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);
int r;
pdata = client->dev.platform_data;
if (pdata == NULL) {
nfc_err(&client->dev, "No platform data\n");
return -EINVAL;
}
/* store for later use */
phy->gpio_ena = pdata->gpio_ena;
phy->irq_polarity = pdata->irq_polarity;
if (phy->gpio_ena > 0) {
r = devm_gpio_request_one(&client->dev, phy->gpio_ena,
GPIOF_OUT_INIT_HIGH,
ST21NFCA_GPIO_NAME_EN);
if (r) {
pr_err("%s : ena gpio_request failed\n", __FILE__);
return r;
}
}
phy->se_status.is_ese_present = pdata->is_ese_present;
phy->se_status.is_uicc_present = pdata->is_uicc_present;
return 0;
}
static int st21nfca_hci_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct st21nfca_i2c_phy *phy;
struct st21nfca_nfc_platform_data *pdata;
int r;
dev_dbg(&client->dev, "%s\n", __func__);
@ -638,19 +605,12 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
mutex_init(&phy->phy_lock);
i2c_set_clientdata(client, phy);
pdata = client->dev.platform_data;
if (!pdata && client->dev.of_node) {
if (client->dev.of_node) {
r = st21nfca_hci_i2c_of_request_resources(client);
if (r) {
nfc_err(&client->dev, "No platform data\n");
return r;
}
} else if (pdata) {
r = st21nfca_hci_i2c_request_resources(client);
if (r) {
nfc_err(&client->dev, "Cannot get platform resources\n");
return r;
}
} else if (ACPI_HANDLE(&client->dev)) {
r = st21nfca_hci_i2c_acpi_request_resources(client);
if (r) {

33
include/linux/platform_data/st21nfca.h
View File

@ -1,33 +0,0 @@
/*
* Driver include for the ST21NFCA NFC chip.
*
* Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ST21NFCA_HCI_H_
#define _ST21NFCA_HCI_H_
#include <linux/i2c.h>
#define ST21NFCA_HCI_DRIVER_NAME "st21nfca_hci"
struct st21nfca_nfc_platform_data {
unsigned int gpio_ena;
unsigned int irq_polarity;
bool is_ese_present;
bool is_uicc_present;
};
#endif /* _ST21NFCA_HCI_H_ */