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: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/amd/pmf/Kconfig b/drivers/platform/x86/amd/pmf/Kconfig
index f246252bddd85d97f3232617a53cb437b75a92c0..f4fa8bd8bda832a622078d84e2a7181d5f65cb88 100644 (file)
--- a/drivers/platform/x86/amd/pmf/Kconfig
+++ b/drivers/platform/x86/amd/pmf/Kconfig
@@ -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,

diff --git a/drivers/platform/x86/amd/pmf/spc.c b/drivers/platform/x86/amd/pmf/spc.c
index a0423942f771e457457cc88cb604913eeb5b2657..87ae7c41c9f8a3f74d5902ec9828caaea16287dd 100644 (file)
--- a/drivers/platform/x86/amd/pmf/spc.c
+++ b/drivers/platform/x86/amd/pmf/spc.c
@@ -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);
 }