openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

intel_scu_ipc: fix indentation in few places 

While here, do couple of amendments:
 - move platform variable to the function where it's used
 - define intel_scu_ipc_check_status() static

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2015-01-21 21:38:09 +02:00 committed by Darren Hart
parent 03070e7c9d
commit 7c2e3c7476
1 changed files with 14 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/platform/x86/intel_scu_ipc.c
View File

@ -1,7 +1,7 @@
/*
* intel_scu_ipc.c: Driver for the Intel SCU IPC mechanism
*
* (C) Copyright 2008-2010 Intel Corporation
* (C) Copyright 2008-2010,2015 Intel Corporation
* Author: Sreedhara DS (sreedhara.ds@intel.com)
*
* This program is free software; you can redistribute it and/or
@ -67,7 +67,7 @@
#define PCI_DEVICE_ID_CLOVERVIEW 0x08ea
#define PCI_DEVICE_ID_TANGIER 0x11a0
/* intel scu ipc driver data*/
/* intel scu ipc driver data */
struct intel_scu_ipc_pdata_t {
u32 ipc_base;
u32 i2c_base;
@ -114,8 +114,6 @@ struct intel_scu_ipc_dev {
static struct intel_scu_ipc_dev ipcdev; /* Only one for now */
static int platform; /* Platform type */
/*
* IPC Read Buffer (Read Only):
* 16 byte buffer for receiving data from SCU, if IPC command
@ -160,7 +158,6 @@ static inline void ipc_data_writel(u32 data, u32 offset) /* Write ipc data */
* Format:
* |rfu3(8)|error code(8)|initiator id(8)|cmd id(4)|rfu1(2)|error(1)|busy(1)|
*/
static inline u8 ipc_read_status(void)
{
return __raw_readl(ipcdev.ipc_base + 0x04);
@ -176,7 +173,8 @@ static inline u32 ipc_data_readl(u32 offset) /* Read ipc u32 data */
return readl(ipcdev.ipc_base + IPC_READ_BUFFER + offset);
}
static inline int busy_loop(void) /* Wait till scu status is busy */
/* Wait till scu status is busy */
static inline int busy_loop(void)
{
u32 status = 0;
u32 loop_count = 0;
@ -217,7 +215,7 @@ static inline int ipc_wait_for_interrupt(void)
return 0;
}
int intel_scu_ipc_check_status(void)
static int intel_scu_ipc_check_status(void)
{
return ipcdev.irq_mode ? ipc_wait_for_interrupt() : busy_loop();
}
@ -248,18 +246,18 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
if (id == IPC_CMD_PCNTRL_R) {
for (nc = 0, offset = 0; nc < count; nc++, offset += 4)
ipc_data_writel(wbuf[nc], offset);
ipc_command((count*2) << 16 | id << 12 | 0 << 8 | op);
ipc_command((count * 2) << 16 | id << 12 | 0 << 8 | op);
} else if (id == IPC_CMD_PCNTRL_W) {
for (nc = 0; nc < count; nc++, offset += 1)
cbuf[offset] = data[nc];
for (nc = 0, offset = 0; nc < count; nc++, offset += 4)
ipc_data_writel(wbuf[nc], offset);
ipc_command((count*3) << 16 | id << 12 | 0 << 8 | op);
ipc_command((count * 3) << 16 | id << 12 | 0 << 8 | op);
} else if (id == IPC_CMD_PCNTRL_M) {
cbuf[offset] = data[0];
cbuf[offset + 1] = data[1];
ipc_data_writel(wbuf[0], 0); /* Write wbuff */
ipc_command(4 << 16 | id << 12 | 0 << 8 | op);
ipc_command(4 << 16 | id << 12 | 0 << 8 | op);
}
err = intel_scu_ipc_check_status();
@ -301,7 +299,7 @@ EXPORT_SYMBOL(intel_scu_ipc_ioread8);
*/
int intel_scu_ipc_ioread16(u16 addr, u16 *data)
{
u16 x[2] = {addr, addr + 1 };
u16 x[2] = {addr, addr + 1};
return pwr_reg_rdwr(x, (u8 *)data, 2, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_R);
}
EXPORT_SYMBOL(intel_scu_ipc_ioread16);
@ -351,7 +349,7 @@ EXPORT_SYMBOL(intel_scu_ipc_iowrite8);
*/
int intel_scu_ipc_iowrite16(u16 addr, u16 data)
{
u16 x[2] = {addr, addr + 1 };
u16 x[2] = {addr, addr + 1};
return pwr_reg_rdwr(x, (u8 *)&data, 2, IPCMSG_PCNTRL, IPC_CMD_PCNTRL_W);
}
EXPORT_SYMBOL(intel_scu_ipc_iowrite16);
@ -412,7 +410,6 @@ int intel_scu_ipc_writev(u16 *addr, u8 *data, int len)
}
EXPORT_SYMBOL(intel_scu_ipc_writev);
/**
* intel_scu_ipc_update_register - r/m/w a register
* @addr: register address
@ -475,9 +472,8 @@ EXPORT_SYMBOL(intel_scu_ipc_simple_command);
* Issue a command to the SCU which involves data transfers. Do the
* data copies under the lock but leave it for the caller to interpret
*/
int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
u32 *out, int outlen)
u32 *out, int outlen)
{
int i, err;
@ -503,7 +499,7 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
}
EXPORT_SYMBOL(intel_scu_ipc_command);
/*I2C commands */
/* I2C commands */
#define IPC_I2C_WRITE 1 /* I2C Write command */
#define IPC_I2C_READ 2 /* I2C Read command */
@ -666,9 +662,10 @@ static struct pci_driver ipc_driver = {
.remove = ipc_remove,
};
static int __init intel_scu_ipc_init(void)
{
int platform; /* Platform type */
platform = intel_mid_identify_cpu();
if (platform == 0)
return -ENODEV;