Commit 118063f3 authored by Shyam Sundar S K's avatar Shyam Sundar S K Committed by Hans de Goede
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platform/x86/amd/pmf: Get Human presence information from AMD SFH driver 



AMD SFH driver has APIs defined to export the human presence information;
use this within the PMF driver to send inputs to the PMF TA, so that PMF
driver can enact to the actions coming from the TA.

Signed-off-by: default avatarShyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-1-Shyam-sundar.S-k@amd.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 732c35ce

drivers/platform/x86/amd/pmf/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ config AMD_PMF 
	depends on AMD_NB

	select ACPI_PLATFORM_PROFILE

	depends on TEE && AMDTEE

	depends on AMD_SFH_HID

	help

	  This driver provides support for the AMD Platform Management Framework.

	  The goal is to enhance end user experience by making AMD PCs smarter,

drivers/platform/x86/amd/pmf/spc.c

+28 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
 */



#include <acpi/button.h>

#include <linux/amd-pmf-io.h>

#include <linux/power_supply.h>

#include <linux/units.h>

#include "pmf.h"
@@ -44,6 +45,7 @@ void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table * 
	dev_dbg(dev->dev, "Max C0 Residency: %u\n", in->ev_info.max_c0residency);

	dev_dbg(dev->dev, "GFX Busy: %u\n", in->ev_info.gfx_busy);

	dev_dbg(dev->dev, "LID State: %s\n", in->ev_info.lid_state ? "close" : "open");

	dev_dbg(dev->dev, "User Presence: %s\n", in->ev_info.user_present ? "Present" : "Away");

	dev_dbg(dev->dev, "==== TA inputs END ====\n");

}

#else
@@ -147,6 +149,31 @@ static int amd_pmf_get_slider_info(struct amd_pmf_dev *dev, struct ta_pmf_enact_ 
	return 0;

}



static int amd_pmf_get_sensor_info(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in)

{

	struct amd_sfh_info sfh_info;

	int ret;



	/* get HPD data */

	ret = amd_get_sfh_info(&sfh_info, MT_HPD);

	if (ret)

		return ret;



	switch (sfh_info.user_present) {

	case SFH_NOT_DETECTED:

		in->ev_info.user_present = 0xff; /* assume no sensors connected */

		break;

	case SFH_USER_PRESENT:

		in->ev_info.user_present = 1;

		break;

	case SFH_USER_AWAY:

		in->ev_info.user_present = 0;

		break;

	}



	return 0;

}



void amd_pmf_populate_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in)

{

	/* TA side lid open is 1 and close is 0, hence the ! here */
@@ -155,4 +182,5 @@ void amd_pmf_populate_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_tab 
	amd_pmf_get_smu_info(dev, in);

	amd_pmf_get_battery_info(dev, in);

	amd_pmf_get_slider_info(dev, in);

	amd_pmf_get_sensor_info(dev, in);

}