diff options
| author | Basavaraj Natikar <Basavaraj.Natikar@amd.com> | 2022-05-09 18:50:20 +0530 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2022-05-11 14:16:26 +0200 |
| commit | b5d7f43e97dabfa04a4be5ff027ce7da119332be (patch) | |
| tree | 87f93a3970cc9a1211c84f8b1db5d593f2d20695 /drivers/hid | |
| parent | 62f8857b2d082069b11851d1ae8ce101752436ee (diff) | |
| download | linux-b5d7f43e97dabfa04a4be5ff027ce7da119332be.tar.bz2 | |
HID: amd_sfh: Add support for sensor discovery
Sensor discovery status fails in case of broken sensors or
platform not supported. Hence disable driver on failure
of sensor discovery.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_client.c | 11 | ||||
| -rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 7 | ||||
| -rw-r--r-- | drivers/hid/amd-sfh-hid/amd_sfh_pcie.h | 4 |
3 files changed, 22 insertions, 0 deletions
diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_client.c b/drivers/hid/amd-sfh-hid/amd_sfh_client.c index c5de0ec4f9d0..444acd9e2cd6 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_client.c +++ b/drivers/hid/amd-sfh-hid/amd_sfh_client.c @@ -227,6 +227,17 @@ int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata) dev_dbg(dev, "sid 0x%x status 0x%x\n", cl_data->sensor_idx[i], cl_data->sensor_sts[i]); } + if (privdata->mp2_ops->discovery_status && + privdata->mp2_ops->discovery_status(privdata) == 0) { + amd_sfh_hid_client_deinit(privdata); + for (i = 0; i < cl_data->num_hid_devices; i++) { + devm_kfree(dev, cl_data->feature_report[i]); + devm_kfree(dev, in_data->input_report[i]); + devm_kfree(dev, cl_data->report_descr[i]); + } + dev_warn(dev, "Failed to discover, sensors not enabled\n"); + return -EOPNOTSUPP; + } schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP)); return 0; diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c index 6b5fd90b0bd1..e18a4efd8839 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c +++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.c @@ -130,6 +130,12 @@ static int amd_sfh_irq_init_v2(struct amd_mp2_dev *privdata) return 0; } +static int amd_sfh_dis_sts_v2(struct amd_mp2_dev *privdata) +{ + return (readl(privdata->mmio + AMD_P2C_MSG(1)) & + SENSOR_DISCOVERY_STATUS_MASK) >> SENSOR_DISCOVERY_STATUS_SHIFT; +} + void amd_start_sensor(struct amd_mp2_dev *privdata, struct amd_mp2_sensor_info info) { union sfh_cmd_param cmd_param; @@ -245,6 +251,7 @@ static const struct amd_mp2_ops amd_sfh_ops_v2 = { .response = amd_sfh_wait_response_v2, .clear_intr = amd_sfh_clear_intr_v2, .init_intr = amd_sfh_irq_init_v2, + .discovery_status = amd_sfh_dis_sts_v2, }; static const struct amd_mp2_ops amd_sfh_ops = { diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h index 97b99861fae2..9aa88a91ac8d 100644 --- a/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h +++ b/drivers/hid/amd-sfh-hid/amd_sfh_pcie.h @@ -39,6 +39,9 @@ #define AMD_SFH_IDLE_LOOP 200 +#define SENSOR_DISCOVERY_STATUS_MASK GENMASK(5, 3) +#define SENSOR_DISCOVERY_STATUS_SHIFT 3 + /* SFH Command register */ union sfh_cmd_base { u32 ul; @@ -143,5 +146,6 @@ struct amd_mp2_ops { int (*response)(struct amd_mp2_dev *mp2, u8 sid, u32 sensor_sts); void (*clear_intr)(struct amd_mp2_dev *privdata); int (*init_intr)(struct amd_mp2_dev *privdata); + int (*discovery_status)(struct amd_mp2_dev *privdata); }; #endif |