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path: root/drivers/platform/x86/intel_pmc_core.c
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Diffstat (limited to 'drivers/platform/x86/intel_pmc_core.c')
-rw-r--r--drivers/platform/x86/intel_pmc_core.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 571b4754477c..4c1312f1616c 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -831,9 +831,15 @@ static const struct pci_device_id pmc_pci_ids[] = {
* the platform BIOS enforces 24Mhx Crystal to shutdown
* before PMC can assert SLP_S0#.
*/
+static bool xtal_ignore;
static int quirk_xtal_ignore(const struct dmi_system_id *id)
{
- struct pmc_dev *pmcdev = &pmc;
+ xtal_ignore = true;
+ return 0;
+}
+
+static void pmc_core_xtal_ignore(struct pmc_dev *pmcdev)
+{
u32 value;
value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_vric1_offset);
@@ -842,7 +848,6 @@ static int quirk_xtal_ignore(const struct dmi_system_id *id)
/* Low Voltage Mode Enable */
value &= ~SPT_PMC_VRIC1_SLPS0LVEN;
pmc_core_reg_write(pmcdev, pmcdev->map->pm_vric1_offset, value);
- return 0;
}
static const struct dmi_system_id pmc_core_dmi_table[] = {
@@ -857,6 +862,14 @@ static const struct dmi_system_id pmc_core_dmi_table[] = {
{}
};
+static void pmc_core_do_dmi_quirks(struct pmc_dev *pmcdev)
+{
+ dmi_check_system(pmc_core_dmi_table);
+
+ if (xtal_ignore)
+ pmc_core_xtal_ignore(pmcdev);
+}
+
static int pmc_core_probe(struct platform_device *pdev)
{
static bool device_initialized;
@@ -898,7 +911,7 @@ static int pmc_core_probe(struct platform_device *pdev)
mutex_init(&pmcdev->lock);
platform_set_drvdata(pdev, pmcdev);
pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit();
- dmi_check_system(pmc_core_dmi_table);
+ pmc_core_do_dmi_quirks(pmcdev);
pmc_core_dbgfs_register(pmcdev);