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platform/x86: intel_scu_ipcutil: Convert to use new SCU IPC API 

Convert the IPC util to use the new SCU IPC API where the SCU IPC
instance is passed to the functions.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Mika Westerberg 2020-04-16 11:15:39 +03:00 committed by Lee Jones
parent 80ae679b8f
commit 663cc18861
1 changed files with 39 additions and 4 deletions
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43
drivers/platform/x86/intel_scu_ipcutil.c
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@ -22,6 +22,9 @@
static int major;
struct intel_scu_ipc_dev *scu;
static DEFINE_MUTEX(scu_lock);
/* IOCTL commands */
#define INTE_SCU_IPC_REGISTER_READ 0
#define INTE_SCU_IPC_REGISTER_WRITE 1
@ -52,12 +55,12 @@ static int scu_reg_access(u32 cmd, struct scu_ipc_data *data)
switch (cmd) {
case INTE_SCU_IPC_REGISTER_READ:
return intel_scu_ipc_readv(data->addr, data->data, count);
return intel_scu_ipc_dev_readv(scu, data->addr, data->data, count);
case INTE_SCU_IPC_REGISTER_WRITE:
return intel_scu_ipc_writev(data->addr, data->data, count);
return intel_scu_ipc_dev_writev(scu, data->addr, data->data, count);
case INTE_SCU_IPC_REGISTER_UPDATE:
return intel_scu_ipc_update_register(data->addr[0],
data->data[0], data->mask);
return intel_scu_ipc_dev_update(scu, data->addr[0], data->data[0],
data->mask);
default:
return -ENOTTY;
}
@ -91,8 +94,40 @@ static long scu_ipc_ioctl(struct file *fp, unsigned int cmd,
return 0;
}
static int scu_ipc_open(struct inode *inode, struct file *file)
{
int ret = 0;
/* Only single open at the time */
mutex_lock(&scu_lock);
if (scu) {
ret = -EBUSY;
goto unlock;
}
scu = intel_scu_ipc_dev_get();
if (!scu)
ret = -ENODEV;
unlock:
mutex_unlock(&scu_lock);
return ret;
}
static int scu_ipc_release(struct inode *inode, struct file *file)
{
mutex_lock(&scu_lock);
intel_scu_ipc_dev_put(scu);
scu = NULL;
mutex_unlock(&scu_lock);
return 0;
}
static const struct file_operations scu_ipc_fops = {
.unlocked_ioctl = scu_ipc_ioctl,
.open = scu_ipc_open,
.release = scu_ipc_release,
};
static int __init ipc_module_init(void)