diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/lpc_ich.c | 63 |
1 files changed, 32 insertions, 31 deletions
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index cffa8367ddc..b24bae2bcde 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -89,16 +89,16 @@ #define wdt_mem_res(i) wdt_res(ICH_RES_MEM_OFF, i) #define wdt_res(b, i) (&wdt_ich_res[(b) + (i)]) -struct lpc_ich_cfg { - int base; - int ctrl; - int save; -}; - struct lpc_ich_priv { int chipset; - struct lpc_ich_cfg acpi; - struct lpc_ich_cfg gpio; + + int abase; /* ACPI base */ + int actrl; /* ACPI control or PMC base */ + int gbase; /* GPIO base */ + int gctrl; /* GPIO control */ + + int actrl_save; /* Cached ACPI control base value */ + int gctrl_save; /* Cached GPIO control value */ }; static struct resource wdt_ich_res[] = { @@ -742,14 +742,14 @@ static void lpc_ich_restore_config_space(struct pci_dev *dev) { struct lpc_ich_priv *priv = pci_get_drvdata(dev); - if (priv->acpi.save >= 0) { - pci_write_config_byte(dev, priv->acpi.ctrl, priv->acpi.save); - priv->acpi.save = -1; + if (priv->actrl_save >= 0) { + pci_write_config_byte(dev, priv->actrl, priv->actrl_save); + priv->actrl_save = -1; } - if (priv->gpio.save >= 0) { - pci_write_config_byte(dev, priv->gpio.ctrl, priv->gpio.save); - priv->gpio.save = -1; + if (priv->gctrl_save >= 0) { + pci_write_config_byte(dev, priv->gctrl, priv->gctrl_save); + priv->gctrl_save = -1; } } @@ -758,9 +758,9 @@ static void lpc_ich_enable_acpi_space(struct pci_dev *dev) struct lpc_ich_priv *priv = pci_get_drvdata(dev); u8 reg_save; - pci_read_config_byte(dev, priv->acpi.ctrl, ®_save); - pci_write_config_byte(dev, priv->acpi.ctrl, reg_save | 0x80); - priv->acpi.save = reg_save; + pci_read_config_byte(dev, priv->actrl, ®_save); + pci_write_config_byte(dev, priv->actrl, reg_save | 0x80); + priv->actrl_save = reg_save; } static void lpc_ich_enable_gpio_space(struct pci_dev *dev) @@ -768,9 +768,9 @@ static void lpc_ich_enable_gpio_space(struct pci_dev *dev) struct lpc_ich_priv *priv = pci_get_drvdata(dev); u8 reg_save; - pci_read_config_byte(dev, priv->gpio.ctrl, ®_save); - pci_write_config_byte(dev, priv->gpio.ctrl, reg_save | 0x10); - priv->gpio.save = reg_save; + pci_read_config_byte(dev, priv->gctrl, ®_save); + pci_write_config_byte(dev, priv->gctrl, reg_save | 0x10); + priv->gctrl_save = reg_save; } static void lpc_ich_finalize_cell(struct pci_dev *dev, struct mfd_cell *cell) @@ -815,7 +815,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev) struct resource *res; /* Setup power management base register */ - pci_read_config_dword(dev, priv->acpi.base, &base_addr_cfg); + pci_read_config_dword(dev, priv->abase, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); @@ -841,7 +841,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev) gpe0_done: /* Setup GPIO base register */ - pci_read_config_dword(dev, priv->gpio.base, &base_addr_cfg); + pci_read_config_dword(dev, priv->gbase, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { dev_notice(&dev->dev, "I/O space for GPIO uninitialized\n"); @@ -891,7 +891,7 @@ static int lpc_ich_init_wdt(struct pci_dev *dev) struct resource *res; /* Setup power management base register */ - pci_read_config_dword(dev, priv->acpi.base, &base_addr_cfg); + pci_read_config_dword(dev, priv->abase, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); @@ -952,17 +952,18 @@ static int lpc_ich_probe(struct pci_dev *dev, return -ENOMEM; priv->chipset = id->driver_data; - priv->acpi.save = -1; - priv->acpi.base = ACPIBASE; - priv->acpi.ctrl = ACPICTRL; - priv->gpio.save = -1; + priv->actrl_save = -1; + priv->abase = ACPIBASE; + priv->actrl = ACPICTRL; + + priv->gctrl_save = -1; if (priv->chipset <= LPC_ICH5) { - priv->gpio.base = GPIOBASE_ICH0; - priv->gpio.ctrl = GPIOCTRL_ICH0; + priv->gbase = GPIOBASE_ICH0; + priv->gctrl = GPIOCTRL_ICH0; } else { - priv->gpio.base = GPIOBASE_ICH6; - priv->gpio.ctrl = GPIOCTRL_ICH6; + priv->gbase = GPIOBASE_ICH6; + priv->gctrl = GPIOCTRL_ICH6; } pci_set_drvdata(dev, priv); |