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tpm: Remove useless priv field in struct tpm_vendor_specific 

Remove useless priv field in struct tpm_vendor_specific and take benefit
of chip->dev.driver_data.  As priv is the latest field available in
struct tpm_vendor_specific, remove any reference to that structure.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
hifive-unleashed-5.1
Christophe Ricard 2016-03-31 22:57:00 +02:00 committed by Jarkko Sakkinen
parent af782f339a
commit 9e0d39d8a6
13 changed files with 131 additions and 165 deletions
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15
drivers/char/tpm/st33zp24/i2c.c
View File

@ -26,6 +26,7 @@
#include <linux/tpm.h>
#include <linux/platform_data/st33zp24.h>
#include "../tpm.h"
#include "st33zp24.h"
#define TPM_DUMMY_BYTE 0xAA
@ -112,7 +113,9 @@ static const struct st33zp24_phy_ops i2c_phy_ops = {
static int st33zp24_i2c_acpi_request_resources(struct i2c_client *client)
{
struct st33zp24_i2c_phy *phy = i2c_get_clientdata(client);
struct tpm_chip *chip = i2c_get_clientdata(client);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
struct gpio_desc *gpiod_lpcpd;
struct device *dev = &client->dev;
@ -138,7 +141,9 @@ static int st33zp24_i2c_acpi_request_resources(struct i2c_client *client)
static int st33zp24_i2c_of_request_resources(struct i2c_client *client)
{
struct st33zp24_i2c_phy *phy = i2c_get_clientdata(client);
struct tpm_chip *chip = i2c_get_clientdata(client);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
struct device_node *pp;
int gpio;
int ret;
@ -176,8 +181,10 @@ static int st33zp24_i2c_of_request_resources(struct i2c_client *client)
static int st33zp24_i2c_request_resources(struct i2c_client *client)
{
struct tpm_chip *chip = i2c_get_clientdata(client);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_i2c_phy *phy = tpm_dev->phy_id;
struct st33zp24_platform_data *pdata;
struct st33zp24_i2c_phy *phy = i2c_get_clientdata(client);
int ret;
pdata = client->dev.platform_data;
@ -234,8 +241,6 @@ static int st33zp24_i2c_probe(struct i2c_client *client,
phy->client = client;
i2c_set_clientdata(client, phy);
pdata = client->dev.platform_data;
if (!pdata && client->dev.of_node) {
ret = st33zp24_i2c_of_request_resources(client);

15
drivers/char/tpm/st33zp24/spi.c
View File

@ -26,6 +26,7 @@
#include <linux/tpm.h>
#include <linux/platform_data/st33zp24.h>
#include "../tpm.h"
#include "st33zp24.h"
#define TPM_DATA_FIFO 0x24
@ -231,7 +232,9 @@ static const struct st33zp24_phy_ops spi_phy_ops = {
static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
{
struct st33zp24_spi_phy *phy = spi_get_drvdata(spi_dev);
struct tpm_chip *chip = spi_get_drvdata(spi_dev);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
struct gpio_desc *gpiod_lpcpd;
struct device *dev = &spi_dev->dev;
@ -256,7 +259,9 @@ static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
{
struct st33zp24_spi_phy *phy = spi_get_drvdata(spi_dev);
struct tpm_chip *chip = spi_get_drvdata(spi_dev);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
struct device_node *pp;
int gpio;
int ret;
@ -294,7 +299,9 @@ static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
static int st33zp24_spi_request_resources(struct spi_device *dev)
{
struct st33zp24_spi_phy *phy = spi_get_drvdata(dev);
struct tpm_chip *chip = spi_get_drvdata(dev);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
struct st33zp24_platform_data *pdata;
int ret;
@ -347,8 +354,6 @@ static int st33zp24_spi_probe(struct spi_device *dev)
phy->spi_device = dev;
spi_set_drvdata(dev, phy);
pdata = dev->dev.platform_data;
if (!pdata && dev->dev.of_node) {
ret = st33zp24_spi_of_request_resources(dev);

50
drivers/char/tpm/st33zp24/st33zp24.c
View File

@ -94,11 +94,9 @@ static u8 clear_interruption(struct st33zp24_dev *tpm_dev)
*/
static void st33zp24_cancel(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
u8 data;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
data = TPM_STS_COMMAND_READY;
tpm_dev->ops->send(tpm_dev->phy_id, TPM_STS, &data, 1);
} /* st33zp24_cancel() */
@ -110,11 +108,9 @@ static void st33zp24_cancel(struct tpm_chip *chip)
*/
static u8 st33zp24_status(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
u8 data;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
tpm_dev->ops->recv(tpm_dev->phy_id, TPM_STS, &data, 1);
return data;
} /* st33zp24_status() */
@ -126,12 +122,10 @@ static u8 st33zp24_status(struct tpm_chip *chip)
*/
static int check_locality(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
u8 data;
u8 status;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
status = tpm_dev->ops->recv(tpm_dev->phy_id, TPM_ACCESS, &data, 1);
if (status && (data &
(TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) ==
@ -148,13 +142,11 @@ static int check_locality(struct tpm_chip *chip)
*/
static int request_locality(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
unsigned long stop;
long ret;
struct st33zp24_dev *tpm_dev;
u8 data;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
if (check_locality(chip) == tpm_dev->locality)
return tpm_dev->locality;
@ -182,10 +174,9 @@ static int request_locality(struct tpm_chip *chip)
*/
static void release_locality(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
u8 data;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
data = TPM_ACCESS_ACTIVE_LOCALITY;
tpm_dev->ops->send(tpm_dev->phy_id, TPM_ACCESS, &data, 1);
@ -198,12 +189,10 @@ static void release_locality(struct tpm_chip *chip)
*/
static int get_burstcount(struct tpm_chip *chip)
{
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
unsigned long stop;
int burstcnt, status;
u8 temp;
struct st33zp24_dev *tpm_dev;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
stop = jiffies + chip->timeout_d;
do {
@ -263,15 +252,13 @@ static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,
static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
wait_queue_head_t *queue, bool check_cancel)
{
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
unsigned long stop;
int ret = 0;
bool canceled = false;
bool condition;
u32 cur_intrs;
u8 status;
struct st33zp24_dev *tpm_dev;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
/* check current status */
status = st33zp24_status(chip);
@ -329,10 +316,8 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
*/
static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
int size = 0, burstcnt, len, ret;
struct st33zp24_dev *tpm_dev;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
while (size < count &&
wait_for_stat(chip,
@ -362,9 +347,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
static irqreturn_t tpm_ioserirq_handler(int irq, void *dev_id)
{
struct tpm_chip *chip = dev_id;
struct st33zp24_dev *tpm_dev;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
tpm_dev->intrs++;
wake_up_interruptible(&tpm_dev->read_queue);
@ -385,19 +368,17 @@ static irqreturn_t tpm_ioserirq_handler(int irq, void *dev_id)
static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf,
size_t len)
{
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
u32 status, i, size, ordinal;
int burstcnt = 0;
int ret;
u8 data;
struct st33zp24_dev *tpm_dev;
if (!chip)
return -EBUSY;
if (len < TPM_HEADER_SIZE)
return -EBUSY;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
ret = request_locality(chip);
if (ret < 0)
return ret;
@ -557,9 +538,9 @@ int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops,
if (!tpm_dev)
return -ENOMEM;
TPM_VPRIV(chip) = tpm_dev;
tpm_dev->phy_id = phy_id;
tpm_dev->ops = ops;
dev_set_drvdata(&chip->dev, tpm_dev);
chip->timeout_a = msecs_to_jiffies(TIS_SHORT_TIMEOUT);
chip->timeout_b = msecs_to_jiffies(TIS_LONG_TIMEOUT);
@ -643,10 +624,9 @@ EXPORT_SYMBOL(st33zp24_remove);
int st33zp24_pm_suspend(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
struct st33zp24_dev *tpm_dev;
int ret = 0;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
int ret = 0;
if (gpio_is_valid(tpm_dev->io_lpcpd))
gpio_set_value(tpm_dev->io_lpcpd, 0);
@ -665,11 +645,9 @@ EXPORT_SYMBOL(st33zp24_pm_suspend);
int st33zp24_pm_resume(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
struct st33zp24_dev *tpm_dev;
struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
int ret = 0;
tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip);
if (gpio_is_valid(tpm_dev->io_lpcpd)) {
gpio_set_value(tpm_dev->io_lpcpd, 1);
ret = wait_for_stat(chip,

9
drivers/char/tpm/tpm.h
View File

@ -128,14 +128,6 @@ enum tpm2_startup_types {
TPM2_SU_STATE = 0x0001,
};
struct tpm_chip;
struct tpm_vendor_specific {
void *priv;
};
#define TPM_VPRIV(c) ((c)->vendor.priv)
#define TPM_VID_INTEL 0x8086
#define TPM_VID_WINBOND 0x1050
#define TPM_VID_STM 0x104A
@ -166,7 +158,6 @@ struct tpm_chip {
struct mutex tpm_mutex; /* tpm is processing */
struct tpm_vendor_specific vendor;
unsigned long timeout_a; /* jiffies */
unsigned long timeout_b; /* jiffies */
unsigned long timeout_c; /* jiffies */

12
drivers/char/tpm/tpm_atmel.c
View File

@ -37,7 +37,7 @@ enum tpm_atmel_read_status {
static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct tpm_atmel_priv *priv = chip->vendor.priv;
struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
u8 status, *hdr = buf;
u32 size;
int i;
@ -96,7 +96,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct tpm_atmel_priv *priv = chip->vendor.priv;
struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
int i;
dev_dbg(&chip->dev, "tpm_atml_send:\n");
@ -110,14 +110,14 @@ static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
static void tpm_atml_cancel(struct tpm_chip *chip)
{
struct tpm_atmel_priv *priv = chip->vendor.priv;
struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
iowrite8(ATML_STATUS_ABORT, priv->iobase + 1);
}
static u8 tpm_atml_status(struct tpm_chip *chip)
{
struct tpm_atmel_priv *priv = chip->vendor.priv;
struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
return ioread8(priv->iobase + 1);
}
@ -142,7 +142,7 @@ static struct platform_device *pdev;
static void atml_plat_remove(void)
{
struct tpm_chip *chip = dev_get_drvdata(&pdev->dev);
struct tpm_atmel_priv *priv = chip->vendor.priv;
struct tpm_atmel_priv *priv = dev_get_drvdata(&chip->dev);
if (chip) {
tpm_chip_unregister(chip);
@ -207,7 +207,7 @@ static int __init init_atmel(void)
goto err_unreg_dev;
}
chip->vendor.priv = priv;
dev_set_drvdata(&chip->dev, priv);
rc = tpm_chip_register(chip);
if (rc)

5
drivers/char/tpm/tpm_atmel.h
View File

@ -29,11 +29,6 @@ struct tpm_atmel_priv {
void __iomem *iobase;
};
static inline struct tpm_atmel_priv *atmel_get_priv(struct tpm_chip *chip)
{
return chip->vendor.priv;
}
#ifdef CONFIG_PPC64
#include <asm/prom.h>

12
drivers/char/tpm/tpm_crb.c
View File

@ -87,7 +87,7 @@ static SIMPLE_DEV_PM_OPS(crb_pm, tpm_pm_suspend, tpm_pm_resume);
static u8 crb_status(struct tpm_chip *chip)
{
struct crb_priv *priv = chip->vendor.priv;
struct crb_priv *priv = dev_get_drvdata(&chip->dev);
u8 sts = 0;
if ((ioread32(&priv->cca->start) & CRB_START_INVOKE) !=
@ -99,7 +99,7 @@ static u8 crb_status(struct tpm_chip *chip)
static int crb_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct crb_priv *priv = chip->vendor.priv;
struct crb_priv *priv = dev_get_drvdata(&chip->dev);
unsigned int expected;
/* sanity check */
@ -139,7 +139,7 @@ static int crb_do_acpi_start(struct tpm_chip *chip)
static int crb_send(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct crb_priv *priv = chip->vendor.priv;
struct crb_priv *priv = dev_get_drvdata(&chip->dev);
int rc = 0;
if (len > ioread32(&priv->cca->cmd_size)) {
@ -166,7 +166,7 @@ static int crb_send(struct tpm_chip *chip, u8 *buf, size_t len)
static void crb_cancel(struct tpm_chip *chip)
{
struct crb_priv *priv = chip->vendor.priv;
struct crb_priv *priv = dev_get_drvdata(&chip->dev);
iowrite32(cpu_to_le32(CRB_CANCEL_INVOKE), &priv->cca->cancel);
@ -181,7 +181,7 @@ static void crb_cancel(struct tpm_chip *chip)
static bool crb_req_canceled(struct tpm_chip *chip, u8 status)
{
struct crb_priv *priv = chip->vendor.priv;
struct crb_priv *priv = dev_get_drvdata(&chip->dev);
u32 cancel = ioread32(&priv->cca->cancel);
return (cancel & CRB_CANCEL_INVOKE) == CRB_CANCEL_INVOKE;
@ -206,7 +206,7 @@ static int crb_init(struct acpi_device *device, struct crb_priv *priv)
if (IS_ERR(chip))
return PTR_ERR(chip);
chip->vendor.priv = priv;
dev_set_drvdata(&chip->dev, priv);
chip->acpi_dev_handle = device->handle;
chip->flags = TPM_CHIP_FLAG_TPM2;

14
drivers/char/tpm/tpm_i2c_atmel.c
View File

@ -51,7 +51,7 @@ struct priv_data {
static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
struct i2c_client *client = to_i2c_client(chip->dev.parent);
s32 status;
@ -70,7 +70,7 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
struct i2c_client *client = to_i2c_client(chip->dev.parent);
struct tpm_output_header *hdr =
(struct tpm_output_header *)priv->buffer;
@ -111,7 +111,7 @@ static void i2c_atmel_cancel(struct tpm_chip *chip)
static u8 i2c_atmel_read_status(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
struct i2c_client *client = to_i2c_client(chip->dev.parent);
int rc;
@ -155,6 +155,7 @@ static int i2c_atmel_probe(struct i2c_client *client,
{
struct tpm_chip *chip;
struct device *dev = &client->dev;
struct priv_data *priv;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -ENODEV;
@ -163,9 +164,8 @@ static int i2c_atmel_probe(struct i2c_client *client,
if (IS_ERR(chip))
return PTR_ERR(chip);
chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data),
GFP_KERNEL);
if (!chip->vendor.priv)
priv = devm_kzalloc(dev, sizeof(struct priv_data), GFP_KERNEL);
if (!priv)
return -ENOMEM;
/* Default timeouts */
@ -174,6 +174,8 @@ static int i2c_atmel_probe(struct i2c_client *client,
chip->timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
chip->timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
dev_set_drvdata(&chip->dev, priv);
/* There is no known way to probe for this device, and all version
* information seems to be read via TPM commands. Thus we rely on the
* TPM startup process in the common code to detect the device. */

17
drivers/char/tpm/tpm_i2c_nuvoton.c
View File

@ -180,7 +180,7 @@ static int i2c_nuvoton_wait_for_stat(struct tpm_chip *chip, u8 mask, u8 value,
{
if ((chip->flags & TPM_CHIP_FLAG_IRQ) && queue) {
s32 rc;
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
unsigned int cur_intrs = priv->intrs;
enable_irq(priv->irq);
@ -233,7 +233,7 @@ static int i2c_nuvoton_wait_for_data_avail(struct tpm_chip *chip, u32 timeout,
static int i2c_nuvoton_recv_data(struct i2c_client *client,
struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
s32 rc;
int burst_count, bytes2read, size = 0;
@ -267,7 +267,7 @@ static int i2c_nuvoton_recv_data(struct i2c_client *client,
/* Read TPM command results */
static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
struct device *dev = chip->dev.parent;
struct i2c_client *client = to_i2c_client(dev);
s32 rc;
@ -351,7 +351,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
*/
static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
struct device *dev = chip->dev.parent;
struct i2c_client *client = to_i2c_client(dev);
u32 ordinal;
@ -478,7 +478,7 @@ static const struct tpm_class_ops tpm_i2c = {
static irqreturn_t i2c_nuvoton_int_handler(int dummy, void *dev_id)
{
struct tpm_chip *chip = dev_id;
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
priv->intrs++;
wake_up(&priv->read_queue);
@ -543,7 +543,6 @@ static int i2c_nuvoton_probe(struct i2c_client *client,
priv = devm_kzalloc(dev, sizeof(struct priv_data), GFP_KERNEL);
if (!priv)
return -ENOMEM;
chip->vendor.priv = priv;
init_waitqueue_head(&priv->read_queue);
@ -553,6 +552,8 @@ static int i2c_nuvoton_probe(struct i2c_client *client,
chip->timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
chip->timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
dev_set_drvdata(&chip->dev, priv);
/*
* I2C intfcaps (interrupt capabilitieis) in the chip are hard coded to:
* TPM_INTF_INT_LEVEL_LOW | TPM_INTF_DATA_AVAIL_INT
@ -619,8 +620,8 @@ static int i2c_nuvoton_probe(struct i2c_client *client,
static int i2c_nuvoton_remove(struct i2c_client *client)
{
struct device *dev = &(client->dev);
struct tpm_chip *chip = dev_get_drvdata(dev);
struct tpm_chip *chip = i2c_get_clientdata(client);
tpm_chip_unregister(chip);
return 0;
}

38
drivers/char/tpm/tpm_ibmvtpm.c
View File

@ -53,21 +53,6 @@ static int ibmvtpm_send_crq(struct vio_dev *vdev, u64 w1, u64 w2)
return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, w1, w2);
}
/**
* ibmvtpm_get_data - Retrieve ibm vtpm data
* @dev: device struct
*
* Return value:
* vtpm device struct
*/
static struct ibmvtpm_dev *ibmvtpm_get_data(const struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip)
return (struct ibmvtpm_dev *)TPM_VPRIV(chip);
return NULL;
}
/**
* tpm_ibmvtpm_recv - Receive data after send
* @chip: tpm chip struct
@ -79,12 +64,10 @@ static struct ibmvtpm_dev *ibmvtpm_get_data(const struct device *dev)
*/
static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct ibmvtpm_dev *ibmvtpm;
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
u16 len;
int sig;
ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip);
if (!ibmvtpm->rtce_buf) {
dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n");
return 0;
@ -122,13 +105,11 @@ static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
*/
static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct ibmvtpm_dev *ibmvtpm;
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
struct ibmvtpm_crq crq;
__be64 *word = (__be64 *)&crq;
int rc, sig;
ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip);
if (!ibmvtpm->rtce_buf) {
dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n");
return 0;
@ -289,8 +270,8 @@ static int ibmvtpm_crq_send_init(struct ibmvtpm_dev *ibmvtpm)
*/
static int tpm_ibmvtpm_remove(struct vio_dev *vdev)
{
struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev);
struct tpm_chip *chip = dev_get_drvdata(ibmvtpm->dev);
struct tpm_chip *chip = dev_get_drvdata(&vdev->dev);
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
int rc = 0;
tpm_chip_unregister(chip);
@ -327,7 +308,8 @@ static int tpm_ibmvtpm_remove(struct vio_dev *vdev)
*/
static unsigned long tpm_ibmvtpm_get_desired_dma(struct vio_dev *vdev)
{
struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(&vdev->dev);
struct tpm_chip *chip = dev_get_drvdata(&vdev->dev);
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
/* ibmvtpm initializes at probe time, so the data we are
* asking for may not be set yet. Estimate that 4K required
@ -348,7 +330,8 @@ static unsigned long tpm_ibmvtpm_get_desired_dma(struct vio_dev *vdev)
*/
static int tpm_ibmvtpm_suspend(struct device *dev)
{
struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(dev);
struct tpm_chip *chip = dev_get_drvdata(dev);
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
struct ibmvtpm_crq crq;
u64 *buf = (u64 *) &crq;
int rc = 0;
@ -400,7 +383,8 @@ static int ibmvtpm_reset_crq(struct ibmvtpm_dev *ibmvtpm)
*/
static int tpm_ibmvtpm_resume(struct device *dev)
{
struct ibmvtpm_dev *ibmvtpm = ibmvtpm_get_data(dev);
struct tpm_chip *chip = dev_get_drvdata(dev);
struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
int rc = 0;
do {
@ -643,7 +627,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
crq_q->index = 0;
TPM_VPRIV(chip) = (void *)ibmvtpm;
dev_set_drvdata(&chip->dev, ibmvtpm)
spin_lock_init(&ibmvtpm->rtce_lock);

48
drivers/char/tpm/tpm_nsc.c
View File

@ -69,20 +69,16 @@ struct tpm_nsc_priv {
unsigned long base;
};
static inline struct tpm_nsc_priv *nsc_get_priv(struct tpm_chip *chip)
{
return chip->vendor.priv;
}
/*
* Wait for a certain status to appear
*/
static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
{
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
unsigned long stop;
/* status immediately available check */
*data = inb(nsc_get_priv(chip)->base + NSC_STATUS);
*data = inb(priv->base + NSC_STATUS);
if ((*data & mask) == val)
return 0;
@ -90,7 +86,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
stop = jiffies + 10 * HZ;
do {
msleep(TPM_TIMEOUT);
*data = inb(nsc_get_priv(chip)->base + 1);
*data = inb(priv->base + 1);
if ((*data & mask) == val)
return 0;
}
@ -101,13 +97,14 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, u8 val, u8 * data)
static int nsc_wait_for_ready(struct tpm_chip *chip)
{
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
int status;
unsigned long stop;
/* status immediately available check */
status = inb(nsc_get_priv(chip)->base + NSC_STATUS);
status = inb(priv->base + NSC_STATUS);
if (status & NSC_STATUS_OBF)
status = inb(nsc_get_priv(chip)->base + NSC_DATA);
status = inb(priv->base + NSC_DATA);
if (status & NSC_STATUS_RDY)
return 0;
@ -115,9 +112,9 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
stop = jiffies + 100;
do {
msleep(TPM_TIMEOUT);
status = inb(nsc_get_priv(chip)->base + NSC_STATUS);
status = inb(priv->base + NSC_STATUS);
if (status & NSC_STATUS_OBF)
status = inb(nsc_get_priv(chip)->base + NSC_DATA);
status = inb(priv->base + NSC_DATA);
if (status & NSC_STATUS_RDY)
return 0;
}
@ -130,6 +127,7 @@ static int nsc_wait_for_ready(struct tpm_chip *chip)
static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
{
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
u8 *buffer = buf;
u8 data, *p;
u32 size;
@ -143,7 +141,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
return -EIO;
}
data = inb(nsc_get_priv(chip)->base + NSC_DATA);
data = inb(priv->base + NSC_DATA);
if (data != NSC_COMMAND_NORMAL) {
dev_err(&chip->dev, "not in normal mode (0x%x)\n",
data);
@ -160,7 +158,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
}
if (data & NSC_STATUS_F0)
break;
*p = inb(nsc_get_priv(chip)->base + NSC_DATA);
*p = inb(priv->base + NSC_DATA);
}
if ((data & NSC_STATUS_F0) == 0 &&
@ -169,7 +167,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
return -EIO;
}
data = inb(nsc_get_priv(chip)->base + NSC_DATA);
data = inb(priv->base + NSC_DATA);
if (data != NSC_COMMAND_EOC) {
dev_err(&chip->dev,
"expected end of command(0x%x)\n", data);
@ -187,6 +185,7 @@ static int tpm_nsc_recv(struct tpm_chip *chip, u8 * buf, size_t count)
static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
{
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
u8 data;
int i;
@ -196,7 +195,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
* fix it. Not sure why this is needed, we followed the flow
* chart in the manual to the letter.
*/
outb(NSC_COMMAND_CANCEL, nsc_get_priv(chip)->base + NSC_COMMAND);
outb(NSC_COMMAND_CANCEL, priv->base + NSC_COMMAND);
if (nsc_wait_for_ready(chip) != 0)
return -EIO;
@ -206,7 +205,7 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
return -EIO;
}
outb(NSC_COMMAND_NORMAL, nsc_get_priv(chip)->base + NSC_COMMAND);
outb(NSC_COMMAND_NORMAL, priv->base + NSC_COMMAND);
if (wait_for_stat(chip, NSC_STATUS_IBR, NSC_STATUS_IBR, &data) < 0) {
dev_err(&chip->dev, "IBR timeout\n");
return -EIO;
@ -218,26 +217,30 @@ static int tpm_nsc_send(struct tpm_chip *chip, u8 * buf, size_t count)
"IBF timeout (while writing data)\n");
return -EIO;
}
outb(buf[i], nsc_get_priv(chip)->base + NSC_DATA);
outb(buf[i], priv->base + NSC_DATA);
}
if (wait_for_stat(chip, NSC_STATUS_IBF, 0, &data) < 0) {
dev_err(&chip->dev, "IBF timeout\n");
return -EIO;
}
outb(NSC_COMMAND_EOC, nsc_get_priv(chip)->base + NSC_COMMAND);
outb(NSC_COMMAND_EOC, priv->base + NSC_COMMAND);
return count;
}
static void tpm_nsc_cancel(struct tpm_chip *chip)
{
outb(NSC_COMMAND_CANCEL, nsc_get_priv(chip)->base + NSC_COMMAND);
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
outb(NSC_COMMAND_CANCEL, priv->base + NSC_COMMAND);
}
static u8 tpm_nsc_status(struct tpm_chip *chip)
{
return inb(nsc_get_priv(chip)->base + NSC_STATUS);
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
return inb(priv->base + NSC_STATUS);
}
static bool tpm_nsc_req_canceled(struct tpm_chip *chip, u8 status)
@ -260,9 +263,10 @@ static struct platform_device *pdev = NULL;
static void tpm_nsc_remove(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
struct tpm_nsc_priv *priv = dev_get_drvdata(&chip->dev);
tpm_chip_unregister(chip);
release_region(nsc_get_priv(chip)->base, 2);
release_region(priv->base, 2);
}
static SIMPLE_DEV_PM_OPS(tpm_nsc_pm, tpm_pm_suspend, tpm_pm_resume);
@ -334,7 +338,7 @@ static int __init init_nsc(void)
goto err_rel_reg;
}
chip->vendor.priv = priv;
dev_set_drvdata(&chip->dev, priv);
rc = tpm_chip_register(chip);
if (rc)

47
drivers/char/tpm/tpm_tis.c
View File

@ -132,7 +132,7 @@ static inline int is_itpm(struct acpi_device *dev)
* correct values in the other bits.' */
static int wait_startup(struct tpm_chip *chip, int l)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
unsigned long stop = jiffies + chip->timeout_a;
do {
if (ioread8(priv->iobase + TPM_ACCESS(l)) &
@ -145,7 +145,7 @@ static int wait_startup(struct tpm_chip *chip, int l)
static int check_locality(struct tpm_chip *chip, int l)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
if ((ioread8(priv->iobase + TPM_ACCESS(l)) &
(TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) ==
@ -157,7 +157,7 @@ static int check_locality(struct tpm_chip *chip, int l)
static void release_locality(struct tpm_chip *chip, int l, int force)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
if (force || (ioread8(priv->iobase + TPM_ACCESS(l)) &
(TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) ==
@ -168,7 +168,7 @@ static void release_locality(struct tpm_chip *chip, int l, int force)
static int request_locality(struct tpm_chip *chip, int l)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
unsigned long stop, timeout;
long rc;
@ -209,7 +209,7 @@ again:
static u8 tpm_tis_status(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
return ioread8(priv->iobase +
TPM_STS(priv->locality));
@ -217,7 +217,7 @@ static u8 tpm_tis_status(struct tpm_chip *chip)
static void tpm_tis_ready(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
/* this causes the current command to be aborted */
iowrite8(TPM_STS_COMMAND_READY,
@ -226,7 +226,7 @@ static void tpm_tis_ready(struct tpm_chip *chip)
static int get_burstcount(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
unsigned long stop;
int burstcnt;
@ -248,7 +248,7 @@ static int get_burstcount(struct tpm_chip *chip)
static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int size = 0, burstcnt;
while (size < count &&
wait_for_tpm_stat(chip,
@ -266,7 +266,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
static int tpm_tis_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int size = 0;
int expected, status;
@ -322,7 +322,7 @@ MODULE_PARM_DESC(itpm, "Force iTPM workarounds (found on some Lenovo laptops)");
*/
static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int rc, status, burstcnt;
size_t count = 0;
@ -378,7 +378,7 @@ out_err:
static void disable_interrupts(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
u32 intmask;
intmask =
@ -399,7 +399,7 @@ static void disable_interrupts(struct tpm_chip *chip)
*/
static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int rc;
u32 ordinal;
unsigned long dur;
@ -437,7 +437,7 @@ out_err:
static int tpm_tis_send(struct tpm_chip *chip, u8 *buf, size_t len)
{
int rc, irq;
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
if (!(chip->flags & TPM_CHIP_FLAG_IRQ) || priv->irq_tested)
return tpm_tis_send_main(chip, buf, len);
@ -471,7 +471,7 @@ static const struct tis_vendor_timeout_override vendor_timeout_overrides[] = {
static bool tpm_tis_update_timeouts(struct tpm_chip *chip,
unsigned long *timeout_cap)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int i;
u32 did_vid;
@ -495,7 +495,7 @@ static bool tpm_tis_update_timeouts(struct tpm_chip *chip,
*/
static int probe_itpm(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
int rc = 0;
u8 cmd_getticks[] = {
0x00, 0xc1, 0x00, 0x00, 0x00, 0x0a,
@ -537,7 +537,7 @@ out:
static bool tpm_tis_req_canceled(struct tpm_chip *chip, u8 status)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
switch (priv->manufacturer_id) {
case TPM_VID_WINBOND:
@ -564,7 +564,7 @@ static const struct tpm_class_ops tpm_tis = {
static irqreturn_t tis_int_handler(int dummy, void *dev_id)
{
struct tpm_chip *chip = dev_id;
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
u32 interrupt;
int i;
@ -574,7 +574,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
if (interrupt == 0)
return IRQ_NONE;
((struct priv_data *)chip->vendor.priv)->irq_tested = true;
priv->irq_tested = true;
if (interrupt & TPM_INTF_DATA_AVAIL_INT)
wake_up_interruptible(&priv->read_queue);
if (interrupt & TPM_INTF_LOCALITY_CHANGE_INT)
@ -601,7 +601,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
int flags, int irq)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
u8 original_int_vec;
if (devm_request_irq(&chip->dev, irq, tis_int_handler, flags,
@ -654,7 +654,7 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
*/
static void tpm_tis_probe_irq(struct tpm_chip *chip, u32 intmask)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
u8 original_int_vec;
int i;
@ -678,7 +678,7 @@ MODULE_PARM_DESC(interrupts, "Enable interrupts");
static void tpm_tis_remove(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
void __iomem *reg = priv->iobase + TPM_INT_ENABLE(priv->locality);
iowrite32(~TPM_GLOBAL_INT_ENABLE & ioread32(reg), reg);
@ -701,7 +701,6 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
if (IS_ERR(chip))
return PTR_ERR(chip);
chip->vendor.priv = priv;
#ifdef CONFIG_ACPI
chip->acpi_dev_handle = acpi_dev_handle;
#endif
@ -716,6 +715,8 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
chip->timeout_c = TIS_TIMEOUT_C_MAX;
chip->timeout_d = TIS_TIMEOUT_D_MAX;
dev_set_drvdata(&chip->dev, priv);
if (wait_startup(chip, 0) != 0) {
rc = -ENODEV;
goto out_err;
@ -840,7 +841,7 @@ out_err:
#ifdef CONFIG_PM_SLEEP
static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
{
struct priv_data *priv = chip->vendor.priv;
struct priv_data *priv = dev_get_drvdata(&chip->dev);
u32 intmask;
/* reenable interrupts that device may have lost or

14
drivers/char/tpm/xen-tpmfront.c
View File

@ -41,7 +41,7 @@ enum status_bits {
static u8 vtpm_status(struct tpm_chip *chip)
{
struct tpm_private *priv = TPM_VPRIV(chip);
struct tpm_private *priv = dev_get_drvdata(&chip->dev);
switch (priv->shr->state) {
case VTPM_STATE_IDLE:
return VTPM_STATUS_IDLE | VTPM_STATUS_CANCELED;
@ -62,7 +62,7 @@ static bool vtpm_req_canceled(struct tpm_chip *chip, u8 status)
static void vtpm_cancel(struct tpm_chip *chip)
{
struct tpm_private *priv = TPM_VPRIV(chip);
struct tpm_private *priv = dev_get_drvdata(&chip->dev);
priv->shr->state = VTPM_STATE_CANCEL;
wmb();
notify_remote_via_evtchn(priv->evtchn);
@ -75,7 +75,7 @@ static unsigned int shr_data_offset(struct vtpm_shared_page *shr)
static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct tpm_private *priv = TPM_VPRIV(chip);
struct tpm_private *priv = dev_get_drvdata(&chip->dev);
struct vtpm_shared_page *shr = priv->shr;
unsigned int offset = shr_data_offset(shr);
@ -117,7 +117,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
struct tpm_private *priv = TPM_VPRIV(chip);
struct tpm_private *priv = dev_get_drvdata(&chip->dev);
struct vtpm_shared_page *shr = priv->shr;
unsigned int offset = shr_data_offset(shr);
size_t length = shr->length;
@ -184,7 +184,7 @@ static int setup_chip(struct device *dev, struct tpm_private *priv)
init_waitqueue_head(&priv->read_queue);
priv->chip = chip;
TPM_VPRIV(chip) = priv;
dev_set_drvdata(&chip->dev, priv);
return 0;
}
@ -320,10 +320,10 @@ static int tpmfront_probe(struct xenbus_device *dev,
static int tpmfront_remove(struct xenbus_device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(&dev->dev);
struct tpm_private *priv = TPM_VPRIV(chip);
struct tpm_private *priv = dev_get_drvdata(&chip->dev);
tpm_chip_unregister(chip);
ring_free(priv);
TPM_VPRIV(chip) = NULL;
dev_set_drvdata(&chip->dev, NULL);
return 0;
}