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intel/block/pcie/rtd3: ACPI debug messages

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Change-Id: Icc4a882ff73f62a134b92f1afb0dc298ea809189
Signed-off-by: Jeremy Soller <jeremy@system76.com>
This commit is contained in:
Jeremy Soller
2020-12-29 11:21:39 -07:00
committed by Tim Crawford
parent 9fa04e13ca
commit 5f3df49cf7
1 changed files with 12 additions and 5 deletions
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17
src/soc/intel/common/block/pcie/rtd3/rtd3.c
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@@ -144,6 +144,8 @@ pcie_rtd3_acpi_method_on(unsigned int pcie_rp,
acpigen_write_method_serialized("_ON", 0); acpigen_write_method_serialized("_ON", 0);
acpigen_write_debug_string("PCIe RTD3 _ON");
/* When this feature is enabled, ONSK indicates if the previous _OFF was /* When this feature is enabled, ONSK indicates if the previous _OFF was
* skipped. If so, since the device was not in Off state, and the current * skipped. If so, since the device was not in Off state, and the current
* _ON can be skipped as well. * _ON can be skipped as well.
@@ -167,9 +169,12 @@ pcie_rtd3_acpi_method_on(unsigned int pcie_rp,
acpigen_write_return_op(ONE_OP); acpigen_write_return_op(ONE_OP);
acpigen_write_if_end(); acpigen_write_if_end();
if (config->use_rp_mutex) /* When this feature is enabled, ONSK indicates if the previous _OFF was
acpigen_write_acquire(acpi_device_path_join(parent, RP_MUTEX_NAME), * skipped. If so, since the device was not in Off state, and the current
ACPI_MUTEX_NO_TIMEOUT); * _ON can be skipped as well.
*/
if (config->skip_on_off_support)
acpigen_write_if_lequal_namestr_int("ONSK", 0);
/* Disable modPHY power gating for PCH RPs. */ /* Disable modPHY power gating for PCH RPs. */
if (rp_type == PCIE_RP_PCH) if (rp_type == PCIE_RP_PCH)
@@ -228,6 +233,8 @@ pcie_rtd3_acpi_method_off(int pcie_rp,
acpigen_write_method_serialized("_OFF", 0); acpigen_write_method_serialized("_OFF", 0);
acpigen_write_debug_string("PCIe RTD3 _OFF");
/* When this feature is enabled, ONSK is checked to see if the device /* When this feature is enabled, ONSK is checked to see if the device
* wants _OFF to be skipped for once. ONSK is normally incremented in the * wants _OFF to be skipped for once. ONSK is normally incremented in the
* device method, such as reset _RST, which is invoked during driver reload. * device method, such as reset _RST, which is invoked during driver reload.
@@ -448,8 +455,8 @@ static void pcie_rtd3_acpi_fill_ssdt(const struct device *dev)
} }
} }
printk(BIOS_INFO, "%s: Enable RTD3 for %s (%s)\n", scope, dev_path(parent), printk(BIOS_INFO, "%s: Enable RTD3 for %s (%s) on RP #%d\n", scope, dev_path(parent),
config->desc ?: dev->chip_ops->name); config->desc ?: dev->chip_ops->name, pcie_rp + 1);
/* Create a mutex for exclusive access to the PMC registers. */ /* Create a mutex for exclusive access to the PMC registers. */
if (rp_type == PCIE_RP_PCH && !mutex_created) { if (rp_type == PCIE_RP_PCH && !mutex_created) {