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mfd: lpc_ich: Separate device cells for clarity 

The lpc_ich_cells array gives the wrong impression about the
relationship between the watchdog and GPIO devices. They are
completely distinct devices, so this patch separates the
array into distinct mfd_cell structs per device.

A side effect of removing the array, is that the lpc_cells enum
is no longer needed.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
hifive-unleashed-5.1
Aaron Sierra 2015-09-22 19:04:24 -05:00 committed by Lee Jones
parent 39d047c0b1
commit 3dab794f50
1 changed files with 18 additions and 24 deletions
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42
drivers/mfd/lpc_ich.c
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@ -132,24 +132,18 @@ static struct resource gpio_ich_res[] = {
},
};
enum lpc_cells {
LPC_WDT = 0,
LPC_GPIO,
static struct mfd_cell lpc_ich_wdt_cell = {
.name = "iTCO_wdt",
.num_resources = ARRAY_SIZE(wdt_ich_res),
.resources = wdt_ich_res,
.ignore_resource_conflicts = true,
};
static struct mfd_cell lpc_ich_cells[] = {
[LPC_WDT] = {
.name = "iTCO_wdt",
.num_resources = ARRAY_SIZE(wdt_ich_res),
.resources = wdt_ich_res,
.ignore_resource_conflicts = true,
},
[LPC_GPIO] = {
.name = "gpio_ich",
.num_resources = ARRAY_SIZE(gpio_ich_res),
.resources = gpio_ich_res,
.ignore_resource_conflicts = true,
},
static struct mfd_cell lpc_ich_gpio_cell = {
.name = "gpio_ich",
.num_resources = ARRAY_SIZE(gpio_ich_res),
.resources = gpio_ich_res,
.ignore_resource_conflicts = true,
};
/* chipset related info */
@ -841,7 +835,7 @@ static int lpc_ich_finalize_wdt_cell(struct pci_dev *dev)
struct itco_wdt_platform_data *pdata;
struct lpc_ich_priv *priv = pci_get_drvdata(dev);
struct lpc_ich_info *info;
struct mfd_cell *cell = &lpc_ich_cells[LPC_WDT];
struct mfd_cell *cell = &lpc_ich_wdt_cell;
pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
@ -860,7 +854,7 @@ static int lpc_ich_finalize_wdt_cell(struct pci_dev *dev)
static void lpc_ich_finalize_gpio_cell(struct pci_dev *dev)
{
struct lpc_ich_priv *priv = pci_get_drvdata(dev);
struct mfd_cell *cell = &lpc_ich_cells[LPC_GPIO];
struct mfd_cell *cell = &lpc_ich_gpio_cell;
cell->platform_data = &lpc_chipset_info[priv->chipset];
cell->pdata_size = sizeof(struct lpc_ich_info);
@ -904,7 +898,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev)
base_addr = base_addr_cfg & 0x0000ff80;
if (!base_addr) {
dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n");
lpc_ich_cells[LPC_GPIO].num_resources--;
lpc_ich_gpio_cell.num_resources--;
goto gpe0_done;
}
@ -918,7 +912,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev)
* the platform_device subsystem doesn't see this resource
* or it will register an invalid region.
*/
lpc_ich_cells[LPC_GPIO].num_resources--;
lpc_ich_gpio_cell.num_resources--;
acpi_conflict = true;
} else {
lpc_ich_enable_acpi_space(dev);
@ -958,12 +952,12 @@ gpe0_done:
lpc_ich_finalize_gpio_cell(dev);
ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
&lpc_ich_cells[LPC_GPIO], 1, NULL, 0, NULL);
&lpc_ich_gpio_cell, 1, NULL, 0, NULL);
gpio_done:
if (acpi_conflict)
pr_warn("Resource conflict(s) found affecting %s\n",
lpc_ich_cells[LPC_GPIO].name);
lpc_ich_gpio_cell.name);
return ret;
}
@ -1007,7 +1001,7 @@ static int lpc_ich_init_wdt(struct pci_dev *dev)
*/
if (lpc_chipset_info[priv->chipset].iTCO_version == 1) {
/* Don't register iomem for TCO ver 1 */
lpc_ich_cells[LPC_WDT].num_resources--;
lpc_ich_wdt_cell.num_resources--;
} else if (lpc_chipset_info[priv->chipset].iTCO_version == 2) {
pci_read_config_dword(dev, RCBABASE, &base_addr_cfg);
base_addr = base_addr_cfg & 0xffffc000;
@ -1035,7 +1029,7 @@ static int lpc_ich_init_wdt(struct pci_dev *dev)
goto wdt_done;
ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
&lpc_ich_cells[LPC_WDT], 1, NULL, 0, NULL);
&lpc_ich_wdt_cell, 1, NULL, 0, NULL);
wdt_done:
return ret;