From: David E. Box david.e.box@linux.intel.com
[ Upstream commit c9f86d6ca6b5e23d30d16ade4b9fff5b922a610a ]
The DMI callbacks, used for quirks, currently access the PMC by getting the address a global pmc_dev struct. Instead, have the callbacks set a global quirk specific variable. In probe, after calling dmi_check_system(), pass pmc_dev to a function that will handle each quirk if its variable condition is met. This allows removing the global pmc_dev later.
Signed-off-by: David E. Box david.e.box@linux.intel.com Reviewed-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Rajneesh Bhardwaj irenic.rajneesh@gmail.com Link: https://lore.kernel.org/r/20210417031252.3020837-2-david.e.box@linux.intel.c... Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel_pmc_core.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c index b5888aeb4bcf..260d49dca1ad 100644 --- a/drivers/platform/x86/intel_pmc_core.c +++ b/drivers/platform/x86/intel_pmc_core.c @@ -1186,9 +1186,15 @@ static const struct pci_device_id pmc_pci_ids[] = { * the platform BIOS enforces 24Mhz 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); @@ -1197,7 +1203,6 @@ 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[] = { @@ -1212,6 +1217,14 @@ 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; @@ -1253,7 +1266,7 @@ 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);
/* * On TGL, due to a hardware limitation, the GBE LTR blocks PC10 when