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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/mfd/lpc_ich.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/mfd/lpc_ich.c')
-rw-r--r--kernel/drivers/mfd/lpc_ich.c74
1 files changed, 47 insertions, 27 deletions
diff --git a/kernel/drivers/mfd/lpc_ich.c b/kernel/drivers/mfd/lpc_ich.c
index 12d960a60..b514f3cf1 100644
--- a/kernel/drivers/mfd/lpc_ich.c
+++ b/kernel/drivers/mfd/lpc_ich.c
@@ -66,6 +66,7 @@
#include <linux/pci.h>
#include <linux/mfd/core.h>
#include <linux/mfd/lpc_ich.h>
+#include <linux/platform_data/itco_wdt.h>
#define ACPIBASE 0x40
#define ACPIBASE_GPE_OFF 0x28
@@ -131,24 +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 */
@@ -835,9 +830,31 @@ static void lpc_ich_enable_pmc_space(struct pci_dev *dev)
priv->actrl_pbase_save = reg_save;
}
-static void lpc_ich_finalize_cell(struct pci_dev *dev, struct mfd_cell *cell)
+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_wdt_cell;
+
+ pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ info = &lpc_chipset_info[priv->chipset];
+
+ pdata->version = info->iTCO_version;
+ strlcpy(pdata->name, info->name, sizeof(pdata->name));
+
+ cell->platform_data = pdata;
+ cell->pdata_size = sizeof(*pdata);
+ return 0;
+}
+
+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_gpio_cell;
cell->platform_data = &lpc_chipset_info[priv->chipset];
cell->pdata_size = sizeof(struct lpc_ich_info);
@@ -881,7 +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;
}
@@ -895,7 +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);
@@ -933,14 +950,14 @@ gpe0_done:
lpc_chipset_info[priv->chipset].use_gpio = ret;
lpc_ich_enable_gpio_space(dev);
- lpc_ich_finalize_cell(dev, &lpc_ich_cells[LPC_GPIO]);
- ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_GPIO],
- 1, NULL, 0, NULL);
+ lpc_ich_finalize_gpio_cell(dev);
+ ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
+ &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;
}
@@ -984,7 +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;
@@ -1007,9 +1024,12 @@ static int lpc_ich_init_wdt(struct pci_dev *dev)
res->end = base_addr + ACPIBASE_PMC_END;
}
- lpc_ich_finalize_cell(dev, &lpc_ich_cells[LPC_WDT]);
- ret = mfd_add_devices(&dev->dev, -1, &lpc_ich_cells[LPC_WDT],
- 1, NULL, 0, NULL);
+ ret = lpc_ich_finalize_wdt_cell(dev);
+ if (ret)
+ goto wdt_done;
+
+ ret = mfd_add_devices(&dev->dev, PLATFORM_DEVID_AUTO,
+ &lpc_ich_wdt_cell, 1, NULL, 0, NULL);
wdt_done:
return ret;