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-rw-r--r--0001-HID-amd_sfh-Add-support-for-tablet-mode-switch-senso.patch206
1 files changed, 206 insertions, 0 deletions
diff --git a/0001-HID-amd_sfh-Add-support-for-tablet-mode-switch-senso.patch b/0001-HID-amd_sfh-Add-support-for-tablet-mode-switch-senso.patch
new file mode 100644
index 000000000000..eec9d426ba70
--- /dev/null
+++ b/0001-HID-amd_sfh-Add-support-for-tablet-mode-switch-senso.patch
@@ -0,0 +1,206 @@
+This patch adds support for the tablet mode switch sensors on
+convertible devices where that sensor is managed by AMD SFH, like the
+Asus Flow X13 and the Lenovo ThinkPad L13 Yoga Gen2 (AMD).
+
+Co-developed-by: Ivan Dovgal <iv.dovg@gmail.com>
+Signed-off-by: Ivan Dovgal <iv.dovg@gmail.com>
+Co-developed-by: Luke D. Jones <luke@ljones.dev>
+Signed-off-by: Luke D. Jones <luke@ljones.dev>
+Signed-off-by: Adrian Freund <adrian@freund.io>
+---
+v2:
+* Fixed build warning reported by kernel test robot <lkp@intel.com>
+
+ drivers/hid/amd-sfh-hid/amd_sfh_client.c | 2 ++
+ drivers/hid/amd-sfh-hid/amd_sfh_hid.h | 2 +-
+ drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 +++
+ drivers/hid/amd-sfh-hid/amd_sfh_pcie.h | 1 +
+ .../hid_descriptor/amd_sfh_hid_desc.c | 27 +++++++++++++++++++
+ .../hid_descriptor/amd_sfh_hid_desc.h | 7 +++++
+ .../hid_descriptor/amd_sfh_hid_report_desc.h | 21 +++++++++++++++
+ 7 files changed, 63 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_client.c b/drivers/hid/amd-sfh-hid/amd_sfh_client.c
+index 8275bba63611..83dd0402933c 100644
+--- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c
++++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c
+@@ -146,6 +146,8 @@ static const char *get_sensor_name(int idx)
+ return "gyroscope";
+ case mag_idx:
+ return "magnetometer";
++ case tms_idx:
++ return "tablet-mode-switch";
+ case als_idx:
+ return "ALS";
+ case HPD_IDX:
+diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_hid.h b/drivers/hid/amd-sfh-hid/amd_sfh_hid.h
+index 3754fb423e3a..f10ec16bb8aa 100644
+--- a/drivers/hid/amd-sfh-hid/amd_sfh_hid.h
++++ b/drivers/hid/amd-sfh-hid/amd_sfh_hid.h
+@@ -11,7 +11,7 @@
+ #ifndef AMDSFH_HID_H
+ #define AMDSFH_HID_H
+
+-#define MAX_HID_DEVICES 5
++#define MAX_HID_DEVICES 6
+ #define AMD_SFH_HID_VENDOR 0x1022
+ #define AMD_SFH_HID_PRODUCT 0x0001
+
+diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+index 47774b9ab3de..cfda797f0a62 100644
+--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
++++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c
+@@ -27,6 +27,7 @@
+ #define ACEL_EN BIT(0)
+ #define GYRO_EN BIT(1)
+ #define MAGNO_EN BIT(2)
++#define TMS_EN BIT(15)
+ #define HPD_EN BIT(16)
+ #define ALS_EN BIT(19)
+
+@@ -227,6 +228,9 @@ int amd_mp2_get_sensor_num(struct amd_mp2_dev *privdata, u8 *sensor_id)
+ if (MAGNO_EN & activestatus)
+ sensor_id[num_of_sensors++] = mag_idx;
+
++ if (TMS_EN & activestatus)
++ sensor_id[num_of_sensors++] = tms_idx;
++
+ if (ALS_EN & activestatus)
+ sensor_id[num_of_sensors++] = als_idx;
+
+diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
+index dfb7cabd82ef..e18ceee9e5db 100644
+--- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
++++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h
+@@ -78,6 +78,7 @@ enum sensor_idx {
+ accel_idx = 0,
+ gyro_idx = 1,
+ mag_idx = 2,
++ tms_idx = 15,
+ als_idx = 19
+ };
+
+diff --git a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c
+index f9a8c02d5a7b..181973f35f05 100644
+--- a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c
++++ b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c
+@@ -47,6 +47,11 @@ static int get_report_descriptor(int sensor_idx, u8 *rep_desc)
+ memcpy(rep_desc, comp3_report_descriptor,
+ sizeof(comp3_report_descriptor));
+ break;
++ case tms_idx: /* tablet mode switch */
++ memset(rep_desc, 0, sizeof(tms_report_descriptor));
++ memcpy(rep_desc, tms_report_descriptor,
++ sizeof(tms_report_descriptor));
++ break;
+ case als_idx: /* ambient light sensor */
+ memset(rep_desc, 0, sizeof(als_report_descriptor));
+ memcpy(rep_desc, als_report_descriptor,
+@@ -96,6 +101,16 @@ static u32 get_descr_sz(int sensor_idx, int descriptor_name)
+ return sizeof(struct magno_feature_report);
+ }
+ break;
++ case tms_idx:
++ switch (descriptor_name) {
++ case descr_size:
++ return sizeof(tms_report_descriptor);
++ case input_size:
++ return sizeof(struct tms_input_report);
++ case feature_size:
++ return sizeof(struct tms_feature_report);
++ }
++ break;
+ case als_idx:
+ switch (descriptor_name) {
+ case descr_size:
+@@ -138,6 +153,7 @@ static u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report)
+ struct accel3_feature_report acc_feature;
+ struct gyro_feature_report gyro_feature;
+ struct magno_feature_report magno_feature;
++ struct tms_feature_report tms_feature;
+ struct hpd_feature_report hpd_feature;
+ struct als_feature_report als_feature;
+ u8 report_size = 0;
+@@ -173,6 +189,11 @@ static u8 get_feature_report(int sensor_idx, int report_id, u8 *feature_report)
+ memcpy(feature_report, &magno_feature, sizeof(magno_feature));
+ report_size = sizeof(magno_feature);
+ break;
++ case tms_idx: /* tablet mode switch */
++ get_common_features(&tms_feature.common_property, report_id);
++ memcpy(feature_report, &tms_feature, sizeof(tms_feature));
++ report_size = sizeof(tms_feature);
++ break;
+ case als_idx: /* ambient light sensor */
+ get_common_features(&als_feature.common_property, report_id);
+ als_feature.als_change_sesnitivity = HID_DEFAULT_SENSITIVITY;
+@@ -211,6 +232,7 @@ static u8 get_input_report(u8 current_index, int sensor_idx, int report_id,
+ struct accel3_input_report acc_input;
+ struct gyro_input_report gyro_input;
+ struct hpd_input_report hpd_input;
++ struct tms_input_report tms_input;
+ struct als_input_report als_input;
+ struct hpd_status hpdstatus;
+ u8 report_size = 0;
+@@ -244,6 +266,11 @@ static u8 get_input_report(u8 current_index, int sensor_idx, int report_id,
+ memcpy(input_report, &magno_input, sizeof(magno_input));
+ report_size = sizeof(magno_input);
+ break;
++ case tms_idx: /* tablet mode switch */
++ get_common_inputs(&tms_input.common_property, report_id);
++ report_size = sizeof(tms_input);
++ memcpy(input_report, &tms_input, sizeof(tms_input));
++ break;
+ case als_idx: /* Als */
+ get_common_inputs(&als_input.common_property, report_id);
+ /* For ALS ,V2 Platforms uses C2P_MSG5 register instead of DRAM access method */
+diff --git a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h
+index ebd55675eb62..b22068a47429 100644
+--- a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h
++++ b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h
+@@ -111,4 +111,11 @@ struct hpd_input_report {
+ u8 human_presence;
+ } __packed;
+
++struct tms_feature_report {
++ struct common_feature_property common_property;
++} __packed;
++
++struct tms_input_report {
++ struct common_input_property common_property;
++} __packed;
+ #endif
+diff --git a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h
+index 697f2791ea9c..96cbc1e5b9a7 100644
+--- a/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h
++++ b/drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h
+@@ -644,6 +644,27 @@ static const u8 als_report_descriptor[] = {
+ 0xC0 /* HID end collection */
+ };
+
++
++/* TABLET MODE SWITCH */
++__maybe_unused // Used by sfh1.0, but not yet implemented in sfh1.1
++static const u8 tms_report_descriptor[] = {
++0x06, 0x43, 0xFF, // Usage Page (Vendor Defined 0xFF43)
++0x0A, 0x02, 0x02, // Usage (0x0202)
++0xA1, 0x01, // Collection (Application)
++0x85, 0x11, // Report ID (17)
++0x15, 0x00, // Logical Minimum (0)
++0x25, 0x01, // Logical Maximum (1)
++0x35, 0x00, // Physical Minimum (0)
++0x45, 0x01, // Physical Maximum (1)
++0x65, 0x00, // Unit (None)
++0x55, 0x00, // Unit Exponent (0)
++0x75, 0x01, // Report Size (1)
++0x95, 0x98, // Report Count (-104)
++0x81, 0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
++0x91, 0x03, // Output (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
++0xC1, 0x00, // End Collection
++};
++
+ /* BIOMETRIC PRESENCE*/
+ static const u8 hpd_report_descriptor[] = {
+ 0x05, 0x20, /* Usage page */
+--
+2.38.1
+