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Merge branch 'for-5.1/i2c-hid' into for-linus 

Fix dmesg flood for Elan touchpanels which are too slow to assert IRQ from Kai-Heng Feng
hifive-unleashed-5.1
Jiri Kosina 2019-03-05 15:42:51 +01:00
parent edaea3d904 09cc8b3618
commit 9f66d83ed7
6 changed files with 58 additions and 87 deletions
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9
drivers/hid/i2c-hid/i2c-hid-core.c
View File

@ -50,6 +50,7 @@
#define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1)
#define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(2)
#define I2C_HID_QUIRK_DELAY_AFTER_SLEEP BIT(3)
#define I2C_HID_QUIRK_BOGUS_IRQ BIT(4)
/* flags */
#define I2C_HID_STARTED 0
@ -181,6 +182,8 @@ static const struct i2c_hid_quirks {
I2C_HID_QUIRK_NO_RUNTIME_PM },
{ I2C_VENDOR_ID_GOODIX, I2C_DEVICE_ID_GOODIX_01F0,
I2C_HID_QUIRK_NO_RUNTIME_PM },
{ USB_VENDOR_ID_ELAN, HID_ANY_ID,
I2C_HID_QUIRK_BOGUS_IRQ },
{ 0, 0 }
};
@ -505,6 +508,12 @@ static void i2c_hid_get_input(struct i2c_hid *ihid)
return;
}
if (ihid->quirks & I2C_HID_QUIRK_BOGUS_IRQ && ret_size == 0xffff) {
dev_warn_once(&ihid->client->dev, "%s: IRQ triggered but "
"there's no data\n", __func__);
return;
}
if ((ret_size > size) || (ret_size < 2)) {
dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n",
__func__, size, ret_size);

29
drivers/hid/intel-ish-hid/ipc/ipc.c
View File

@ -259,33 +259,22 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
int i;
void (*ipc_send_compl)(void *);
void *ipc_send_compl_prm;
static int out_ipc_locked;
unsigned long out_ipc_flags;
if (dev->dev_state == ISHTP_DEV_DISABLED)
return -EINVAL;
spin_lock_irqsave(&dev->out_ipc_spinlock, out_ipc_flags);
if (out_ipc_locked) {
spin_unlock_irqrestore(&dev->out_ipc_spinlock, out_ipc_flags);
return -EBUSY;
}
out_ipc_locked = 1;
if (!ish_is_input_ready(dev)) {
out_ipc_locked = 0;
spin_unlock_irqrestore(&dev->out_ipc_spinlock, out_ipc_flags);
return -EBUSY;
}
spin_unlock_irqrestore(&dev->out_ipc_spinlock, out_ipc_flags);
return -EINVAL;
spin_lock_irqsave(&dev->wr_processing_spinlock, flags);
if (!ish_is_input_ready(dev)) {
spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
return -EBUSY;
}
/*
* if tx send list is empty - return 0;
* may happen, as RX_COMPLETE handler doesn't check list emptiness.
*/
if (list_empty(&dev->wr_processing_list)) {
spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
out_ipc_locked = 0;
return 0;
}
@ -328,6 +317,8 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
memcpy(&reg, &r_buf[length >> 2], rem);
ish_reg_write(dev, reg_addr, reg);
}
ish_reg_write(dev, IPC_REG_HOST2ISH_DRBL, doorbell_val);
/* Flush writes to msg registers and doorbell */
ish_reg_read(dev, IPC_REG_ISH_HOST_FWSTS);
@ -335,9 +326,6 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
++dev->ipc_tx_cnt;
dev->ipc_tx_bytes_cnt += IPC_HEADER_GET_LENGTH(doorbell_val);
ish_reg_write(dev, IPC_REG_HOST2ISH_DRBL, doorbell_val);
out_ipc_locked = 0;
ipc_send_compl = ipc_link->ipc_send_compl;
ipc_send_compl_prm = ipc_link->ipc_send_compl_prm;
list_del_init(&ipc_link->link);
@ -917,7 +905,6 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev)
init_waitqueue_head(&dev->wait_hw_ready);
spin_lock_init(&dev->wr_processing_spinlock);
spin_lock_init(&dev->out_ipc_spinlock);
/* Init IPC processing and free lists */
INIT_LIST_HEAD(&dev->wr_processing_list);

6
drivers/hid/intel-ish-hid/ishtp/bus.c
View File

@ -119,7 +119,7 @@ int ishtp_send_msg(struct ishtp_device *dev, struct ishtp_msg_hdr *hdr,
* Return: This returns IPC send message status.
*/
int ishtp_write_message(struct ishtp_device *dev, struct ishtp_msg_hdr *hdr,
unsigned char *buf)
void *buf)
{
return ishtp_send_msg(dev, hdr, buf, NULL, NULL);
}
@ -672,7 +672,8 @@ int ishtp_cl_device_bind(struct ishtp_cl *cl)
spin_lock_irqsave(&cl->dev->device_list_lock, flags);
list_for_each_entry(cl_device, &cl->dev->device_list,
device_link) {
if (cl_device->fw_client->client_id == cl->fw_client_id) {
if (cl_device->fw_client &&
cl_device->fw_client->client_id == cl->fw_client_id) {
cl->device = cl_device;
rv = 0;
break;
@ -732,6 +733,7 @@ void ishtp_bus_remove_all_clients(struct ishtp_device *ishtp_dev,
spin_lock_irqsave(&ishtp_dev->device_list_lock, flags);
list_for_each_entry_safe(cl_device, n, &ishtp_dev->device_list,
device_link) {
cl_device->fw_client = NULL;
if (warm_reset && cl_device->reference_count)
continue;

2
drivers/hid/intel-ish-hid/ishtp/bus.h
View File

@ -85,7 +85,7 @@ int ishtp_send_msg(struct ishtp_device *dev,
/* Write a single-fragment message */
int ishtp_write_message(struct ishtp_device *dev,
struct ishtp_msg_hdr *hdr,
unsigned char *buf);
void *buf);
/* Use DMA to send/receive messages */
int ishtp_use_dma_transfer(void);

97
drivers/hid/intel-ish-hid/ishtp/hbm.c
View File

@ -136,19 +136,14 @@ int ishtp_hbm_start_wait(struct ishtp_device *dev)
int ishtp_hbm_start_req(struct ishtp_device *dev)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
struct hbm_host_version_request *start_req;
const size_t len = sizeof(struct hbm_host_version_request);
struct hbm_host_version_request start_req = { 0 };
ishtp_hbm_hdr(ishtp_hdr, len);
ishtp_hbm_hdr(&hdr, sizeof(start_req));
/* host start message */
start_req = (struct hbm_host_version_request *)data;
memset(start_req, 0, len);
start_req->hbm_cmd = HOST_START_REQ_CMD;
start_req->host_version.major_version = HBM_MAJOR_VERSION;
start_req->host_version.minor_version = HBM_MINOR_VERSION;
start_req.hbm_cmd = HOST_START_REQ_CMD;
start_req.host_version.major_version = HBM_MAJOR_VERSION;
start_req.host_version.minor_version = HBM_MINOR_VERSION;
/*
* (!) Response to HBM start may be so quick that this thread would get
@ -156,7 +151,7 @@ int ishtp_hbm_start_req(struct ishtp_device *dev)
* So set it at first, change back to ISHTP_HBM_IDLE upon failure
*/
dev->hbm_state = ISHTP_HBM_START;
if (ishtp_write_message(dev, ishtp_hdr, data)) {
if (ishtp_write_message(dev, &hdr, &start_req)) {
dev_err(dev->devc, "version message send failed\n");
dev->dev_state = ISHTP_DEV_RESETTING;
dev->hbm_state = ISHTP_HBM_IDLE;
@ -178,19 +173,13 @@ int ishtp_hbm_start_req(struct ishtp_device *dev)
void ishtp_hbm_enum_clients_req(struct ishtp_device *dev)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
struct hbm_host_enum_request *enum_req;
const size_t len = sizeof(struct hbm_host_enum_request);
struct hbm_host_enum_request enum_req = { 0 };
/* enumerate clients */
ishtp_hbm_hdr(ishtp_hdr, len);
ishtp_hbm_hdr(&hdr, sizeof(enum_req));
enum_req.hbm_cmd = HOST_ENUM_REQ_CMD;
enum_req = (struct hbm_host_enum_request *)data;
memset(enum_req, 0, len);
enum_req->hbm_cmd = HOST_ENUM_REQ_CMD;
if (ishtp_write_message(dev, ishtp_hdr, data)) {
if (ishtp_write_message(dev, &hdr, &enum_req)) {
dev->dev_state = ISHTP_DEV_RESETTING;
dev_err(dev->devc, "enumeration request send failed\n");
ish_hw_reset(dev);
@ -208,12 +197,8 @@ void ishtp_hbm_enum_clients_req(struct ishtp_device *dev)
*/
static int ishtp_hbm_prop_req(struct ishtp_device *dev)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
struct hbm_props_request *prop_req;
const size_t len = sizeof(struct hbm_props_request);
struct hbm_props_request prop_req = { 0 };
unsigned long next_client_index;
uint8_t client_num;
@ -237,15 +222,12 @@ static int ishtp_hbm_prop_req(struct ishtp_device *dev)
dev->fw_clients[client_num].client_id = next_client_index;
ishtp_hbm_hdr(ishtp_hdr, len);
prop_req = (struct hbm_props_request *)data;
ishtp_hbm_hdr(&hdr, sizeof(prop_req));
memset(prop_req, 0, sizeof(struct hbm_props_request));
prop_req.hbm_cmd = HOST_CLIENT_PROPERTIES_REQ_CMD;
prop_req.address = next_client_index;
prop_req->hbm_cmd = HOST_CLIENT_PROPERTIES_REQ_CMD;
prop_req->address = next_client_index;
if (ishtp_write_message(dev, ishtp_hdr, data)) {
if (ishtp_write_message(dev, &hdr, &prop_req)) {
dev->dev_state = ISHTP_DEV_RESETTING;
dev_err(dev->devc, "properties request send failed\n");
ish_hw_reset(dev);
@ -266,19 +248,14 @@ static int ishtp_hbm_prop_req(struct ishtp_device *dev)
static void ishtp_hbm_stop_req(struct ishtp_device *dev)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
struct hbm_host_stop_request *req;
const size_t len = sizeof(struct hbm_host_stop_request);
struct hbm_host_stop_request stop_req = { 0 } ;
ishtp_hbm_hdr(ishtp_hdr, len);
req = (struct hbm_host_stop_request *)data;
ishtp_hbm_hdr(&hdr, sizeof(stop_req));
memset(req, 0, sizeof(struct hbm_host_stop_request));
req->hbm_cmd = HOST_STOP_REQ_CMD;
req->reason = DRIVER_STOP_REQUEST;
stop_req.hbm_cmd = HOST_STOP_REQ_CMD;
stop_req.reason = DRIVER_STOP_REQUEST;
ishtp_write_message(dev, ishtp_hdr, data);
ishtp_write_message(dev, &hdr, &stop_req);
}
/**
@ -294,15 +271,15 @@ int ishtp_hbm_cl_flow_control_req(struct ishtp_device *dev,
struct ishtp_cl *cl)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
const size_t len = sizeof(struct hbm_flow_control);
struct hbm_flow_control flow_ctrl;
const size_t len = sizeof(flow_ctrl);
int rv;
unsigned long flags;
spin_lock_irqsave(&cl->fc_spinlock, flags);
ishtp_hbm_hdr(ishtp_hdr, len);
ishtp_hbm_cl_hdr(cl, ISHTP_FLOW_CONTROL_CMD, data, len);
ishtp_hbm_hdr(&hdr, len);
ishtp_hbm_cl_hdr(cl, ISHTP_FLOW_CONTROL_CMD, &flow_ctrl, len);
/*
* Sync possible race when RB recycle and packet receive paths
@ -315,7 +292,7 @@ int ishtp_hbm_cl_flow_control_req(struct ishtp_device *dev,
cl->recv_msg_num_frags = 0;
rv = ishtp_write_message(dev, ishtp_hdr, data);
rv = ishtp_write_message(dev, &hdr, &flow_ctrl);
if (!rv) {
++cl->out_flow_ctrl_creds;
++cl->out_flow_ctrl_cnt;
@ -345,14 +322,13 @@ int ishtp_hbm_cl_flow_control_req(struct ishtp_device *dev,
int ishtp_hbm_cl_disconnect_req(struct ishtp_device *dev, struct ishtp_cl *cl)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
const size_t len = sizeof(struct hbm_client_connect_request);
struct hbm_client_connect_request disconn_req;
const size_t len = sizeof(disconn_req);
ishtp_hbm_hdr(ishtp_hdr, len);
ishtp_hbm_cl_hdr(cl, CLIENT_DISCONNECT_REQ_CMD, data, len);
ishtp_hbm_hdr(&hdr, len);
ishtp_hbm_cl_hdr(cl, CLIENT_DISCONNECT_REQ_CMD, &disconn_req, len);
return ishtp_write_message(dev, ishtp_hdr, data);
return ishtp_write_message(dev, &hdr, &disconn_req);
}
/**
@ -391,14 +367,13 @@ static void ishtp_hbm_cl_disconnect_res(struct ishtp_device *dev,
int ishtp_hbm_cl_connect_req(struct ishtp_device *dev, struct ishtp_cl *cl)
{
struct ishtp_msg_hdr hdr;
unsigned char data[128];
struct ishtp_msg_hdr *ishtp_hdr = &hdr;
const size_t len = sizeof(struct hbm_client_connect_request);
struct hbm_client_connect_request conn_req;
const size_t len = sizeof(conn_req);
ishtp_hbm_hdr(ishtp_hdr, len);
ishtp_hbm_cl_hdr(cl, CLIENT_CONNECT_REQ_CMD, data, len);
ishtp_hbm_hdr(&hdr, len);
ishtp_hbm_cl_hdr(cl, CLIENT_CONNECT_REQ_CMD, &conn_req, len);
return ishtp_write_message(dev, ishtp_hdr, data);
return ishtp_write_message(dev, &hdr, &conn_req);
}
/**

2
drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h
View File

@ -211,8 +211,6 @@ struct ishtp_device {
/* For both processing list and free list */
spinlock_t wr_processing_spinlock;
spinlock_t out_ipc_spinlock;
struct ishtp_fw_client *fw_clients; /*Note:memory has to be allocated*/
DECLARE_BITMAP(fw_clients_map, ISHTP_CLIENTS_MAX);
DECLARE_BITMAP(host_clients_map, ISHTP_CLIENTS_MAX);