Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 193562
b: refs/heads/master
c: 75b035a
h: refs/heads/master
v: v3
  • Loading branch information
Jonathan Corbet committed May 7, 2010
1 parent ef705fa commit c4cfd26
Show file tree
Hide file tree
Showing 5 changed files with 39 additions and 27 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: c389874805a6849e3e347fc0e13fa170d80840c1
refs/heads/master: 75b035ace904761b8a340b524533a36e37313b29
2 changes: 1 addition & 1 deletion trunk/drivers/video/via/via-core.c
Original file line number Diff line number Diff line change
Expand Up @@ -213,7 +213,7 @@ static int __devinit via_pci_probe(struct pci_dev *pdev,
* Create the I2C busses. Bailing out on failure seems extreme,
* but that's what the code did before.
*/
ret = viafb_create_i2c_busses(adap_configs);
ret = viafb_create_i2c_busses(&global_dev, adap_configs);
if (ret)
goto out_teardown;
/*
Expand Down
14 changes: 7 additions & 7 deletions trunk/drivers/video/via/via-gpio.c
Original file line number Diff line number Diff line change
Expand Up @@ -91,13 +91,13 @@ static void via_gpio_set(struct gpio_chip *chip, unsigned int nr,

spin_lock_irqsave(&cfg->vdev->reg_lock, flags);
gpio = cfg->active_gpios[nr];
reg = viafb_read_reg(VIASR, gpio->vg_port_index);
reg = via_read_reg(VIASR, gpio->vg_port_index);
reg |= 0x40 << gpio->vg_mask_shift; /* output enable */
if (value)
reg |= 0x10 << gpio->vg_mask_shift;
else
reg &= ~(0x10 << gpio->vg_mask_shift);
viafb_write_reg(gpio->vg_port_index, VIASR, reg);
via_write_reg(VIASR, gpio->vg_port_index, reg);
spin_unlock_irqrestore(&cfg->vdev->reg_lock, flags);
}

Expand All @@ -122,8 +122,8 @@ static int via_gpio_dir_input(struct gpio_chip *chip, unsigned int nr)

spin_lock_irqsave(&cfg->vdev->reg_lock, flags);
gpio = cfg->active_gpios[nr];
viafb_write_reg_mask(gpio->vg_port_index, VIASR, 0,
0x40 << gpio->vg_mask_shift);
via_write_reg_mask(VIASR, gpio->vg_port_index, 0,
0x40 << gpio->vg_mask_shift);
spin_unlock_irqrestore(&cfg->vdev->reg_lock, flags);
return 0;
}
Expand All @@ -139,7 +139,7 @@ static int via_gpio_get(struct gpio_chip *chip, unsigned int nr)

spin_lock_irqsave(&cfg->vdev->reg_lock, flags);
gpio = cfg->active_gpios[nr];
reg = viafb_read_reg(VIASR, gpio->vg_port_index);
reg = via_read_reg(VIASR, gpio->vg_port_index);
spin_unlock_irqrestore(&cfg->vdev->reg_lock, flags);
return reg & (0x04 << gpio->vg_mask_shift);
}
Expand All @@ -164,12 +164,12 @@ static struct viafb_gpio_cfg gpio_config = {
*/
static void viafb_gpio_enable(struct viafb_gpio *gpio)
{
viafb_write_reg_mask(gpio->vg_port_index, VIASR, 0x02, 0x02);
via_write_reg_mask(VIASR, gpio->vg_port_index, 0x02, 0x02);
}

static void viafb_gpio_disable(struct viafb_gpio *gpio)
{
viafb_write_reg_mask(gpio->vg_port_index, VIASR, 0, 0x02);
via_write_reg_mask(VIASR, gpio->vg_port_index, 0, 0x02);
}


Expand Down
46 changes: 29 additions & 17 deletions trunk/drivers/video/via/via_i2c.c
Original file line number Diff line number Diff line change
Expand Up @@ -29,14 +29,16 @@
*/
#define VIAFB_NUM_I2C 5
static struct via_i2c_stuff via_i2c_par[VIAFB_NUM_I2C];
struct viafb_dev *i2c_vdev; /* Passed in from core */

static void via_i2c_setscl(void *data, int state)
{
u8 val;
struct via_port_cfg *adap_data = data;
unsigned long flags;

val = viafb_read_reg(adap_data->io_port,
adap_data->ioport_index) & 0xF0;
spin_lock_irqsave(&i2c_vdev->reg_lock, flags);
val = via_read_reg(adap_data->io_port, adap_data->ioport_index) & 0xF0;
if (state)
val |= 0x20;
else
Expand All @@ -51,35 +53,44 @@ static void via_i2c_setscl(void *data, int state)
default:
DEBUG_MSG("viafb_i2c: specify wrong i2c type.\n");
}
viafb_write_reg(adap_data->ioport_index,
adap_data->io_port, val);
via_write_reg(adap_data->io_port, adap_data->ioport_index, val);
spin_unlock_irqrestore(&i2c_vdev->reg_lock, flags);
}

static int via_i2c_getscl(void *data)
{
struct via_port_cfg *adap_data = data;

if (viafb_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x08)
return 1;
return 0;
unsigned long flags;
int ret = 0;

spin_lock_irqsave(&i2c_vdev->reg_lock, flags);
if (via_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x08)
ret = 1;
spin_unlock_irqrestore(&i2c_vdev->reg_lock, flags);
return ret;
}

static int via_i2c_getsda(void *data)
{
struct via_port_cfg *adap_data = data;

if (viafb_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x04)
return 1;
return 0;
unsigned long flags;
int ret = 0;

spin_lock_irqsave(&i2c_vdev->reg_lock, flags);
if (via_read_reg(adap_data->io_port, adap_data->ioport_index) & 0x04)
ret = 1;
spin_unlock_irqrestore(&i2c_vdev->reg_lock, flags);
return ret;
}

static void via_i2c_setsda(void *data, int state)
{
u8 val;
struct via_port_cfg *adap_data = data;
unsigned long flags;

val = viafb_read_reg(adap_data->io_port,
adap_data->ioport_index) & 0xF0;
spin_lock_irqsave(&i2c_vdev->reg_lock, flags);
val = via_read_reg(adap_data->io_port, adap_data->ioport_index) & 0xF0;
if (state)
val |= 0x10;
else
Expand All @@ -94,8 +105,8 @@ static void via_i2c_setsda(void *data, int state)
default:
DEBUG_MSG("viafb_i2c: specify wrong i2c type.\n");
}
viafb_write_reg(adap_data->ioport_index,
adap_data->io_port, val);
via_write_reg(adap_data->io_port, adap_data->ioport_index, val);
spin_unlock_irqrestore(&i2c_vdev->reg_lock, flags);
}

int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata)
Expand Down Expand Up @@ -174,10 +185,11 @@ static int create_i2c_bus(struct i2c_adapter *adapter,
return i2c_bit_add_bus(adapter);
}

int viafb_create_i2c_busses(struct via_port_cfg *configs)
int viafb_create_i2c_busses(struct viafb_dev *dev, struct via_port_cfg *configs)
{
int i, ret;

i2c_vdev = dev;
for (i = 0; i < VIAFB_NUM_PORTS; i++) {
struct via_port_cfg *adap_cfg = configs++;
struct via_i2c_stuff *i2c_stuff = &via_i2c_par[i];
Expand Down
2 changes: 1 addition & 1 deletion trunk/drivers/video/via/via_i2c.h
Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,7 @@ int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);

struct viafb_par;
int viafb_create_i2c_busses(struct via_port_cfg *cfg);
int viafb_create_i2c_busses(struct viafb_dev *vdev, struct via_port_cfg *cfg);
void viafb_delete_i2c_busses(void);
struct i2c_adapter *viafb_find_adapter(enum viafb_i2c_adap which);
#endif /* __VIA_I2C_H__ */

0 comments on commit c4cfd26

Please sign in to comment.