Commit 6ab98318 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Hans de Goede
Browse files

platform/x86: intel/pmc: Switch to use acpi_evaluate_dsm_typed() 



The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarRajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Link: https://lore.kernel.org/r/20230118095440.41634-1-andriy.shevchenko@linux.intel.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent c6d41f66

drivers/platform/x86/intel/pmc/tgl.c

+3 −3
Original line number Diff line number Diff line
@@ -221,9 +221,9 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev) 


	guid_parse(ACPI_S0IX_DSM_UUID, &s0ix_dsm_guid);



	out_obj = acpi_evaluate_dsm(adev->handle, &s0ix_dsm_guid, 0,

				    ACPI_GET_LOW_MODE_REGISTERS, NULL);

	if (out_obj && out_obj->type == ACPI_TYPE_BUFFER) {

	out_obj = acpi_evaluate_dsm_typed(adev->handle, &s0ix_dsm_guid, 0,

					  ACPI_GET_LOW_MODE_REGISTERS, NULL, ACPI_TYPE_BUFFER);

	if (out_obj) {

		u32 size = out_obj->buffer.length;



		if (size != lpm_size) {