Hi Ilpo,
On 9/27/2023 7:03 PM, Ilpo Järvinen wrote:
> On Fri, 22 Sep 2023, Shyam Sundar S K wrote:
>
>> From: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
>>
>> AMDSFH has information about the Ambient light via the Ambient
>> Light Sensor (ALS) which is part of the AMD sensor fusion hub.
>> Add PMF and AMDSFH interface to get this information.
>>
>> Co-developed-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
>> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
>> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
>> ---
>> drivers/hid/amd-sfh-hid/amd_sfh_common.h | 1 +
>> drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c | 6 ++++++
>> .../amd-sfh-hid/sfh1_1/amd_sfh_interface.c | 20 +++++++++++++++++++
>> drivers/platform/x86/amd/pmf/spc.c | 5 +++++
>> include/linux/amd-pmf-io.h | 2 ++
>> 5 files changed, 34 insertions(+)
>>
>> diff --git a/drivers/hid/amd-sfh-hid/amd_sfh_common.h b/drivers/hid/amd-sfh-hid/amd_sfh_common.h
>> index cd57037bf217..a1950bc6e6ce 100644
>> --- a/drivers/hid/amd-sfh-hid/amd_sfh_common.h
>> +++ b/drivers/hid/amd-sfh-hid/amd_sfh_common.h
>> @@ -39,6 +39,7 @@ struct amd_mp2_sensor_info {
>>
>> struct sfh_dev_status {
>> bool is_hpd_present;
>> + bool is_als_present;
>> };
>>
>> struct amd_mp2_dev {
>> diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c
>> index 9c623456ee12..d8dad39d68b5 100644
>> --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c
>> +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c
>> @@ -77,6 +77,9 @@ static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
>> case HPD_IDX:
>> privdata->dev_en.is_hpd_present = false;
>> break;
>> + case ALS_IDX:
>> + privdata->dev_en.is_als_present = false;
>> + break;
>> }
>>
>> if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
>> @@ -188,6 +191,9 @@ static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
>> case HPD_IDX:
>> privdata->dev_en.is_hpd_present = true;
>> break;
>> + case ALS_IDX:
>> + privdata->dev_en.is_als_present = true;
>> + break;
>> }
>> }
>> dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
>> diff --git a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c
>> index 63a5bbca5a09..2f8200fc3062 100644
>> --- a/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c
>> +++ b/drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_interface.c
>> @@ -94,12 +94,32 @@ static int amd_sfh_hpd_info(u8 *user_present)
>> return -ENODEV;
>> }
>>
>> +static int amd_sfh_als_info(u32 *ambient_light)
>> +{
>> + if (emp2 && emp2->dev_en.is_als_present) {
>> + struct sfh_als_data als_data;
>> + void __iomem *sensoraddr;
>> +
>> + sensoraddr = emp2->vsbase +
>> + (ALS_IDX * SENSOR_DATA_MEM_SIZE_DEFAULT) +
>> + OFFSET_SENSOR_DATA_DEFAULT;
>> + memcpy_fromio(&als_data, sensoraddr, sizeof(struct sfh_als_data));
>> + *ambient_light = float_to_int(als_data.lux);
>> +
>> + return 0;
>> + }
>> +
>> + return -ENODEV;
>> +}
>> +
>> int amd_get_sfh_info(struct amd_sfh_info *sfh_info, enum sfh_message_type op)
>> {
>> if (sfh_info) {
>> switch (op) {
>> case MT_HPD:
>> return amd_sfh_hpd_info(&sfh_info->user_present);
>> + case MT_ALS:
>> + return amd_sfh_als_info(&sfh_info->ambient_light);
>> }
>> }
>> return -1;
>> diff --git a/drivers/platform/x86/amd/pmf/spc.c b/drivers/platform/x86/amd/pmf/spc.c
>> index 97293ae25cf5..8e19b351e76f 100644
>> --- a/drivers/platform/x86/amd/pmf/spc.c
>> +++ b/drivers/platform/x86/amd/pmf/spc.c
>> @@ -49,6 +49,7 @@ void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *
>> "Connected" : "disconnected/unknown");
>> 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, "Ambient Light : %d\n", in->ev_info.ambient_light);
>
> %d vs u32
Thank you very much for your feedback. I will respin a new version
soon addressing your review remarks.
Thanks,
Shyam
>
>> dev_dbg(dev->dev, "==== TA inputs END ====\n");
>> }
>> #else
>> @@ -161,6 +162,10 @@ static void amd_pmf_get_sensor_info(struct amd_pmf_dev *dev, struct ta_pmf_enact
>> {
>> struct amd_sfh_info sfh_info;
>>
>> + /* get ALS data */
>> + amd_get_sfh_info(&sfh_info, MT_ALS);
>> + in->ev_info.ambient_light = sfh_info.ambient_light;
>> +
>> /* get HPD data */
>> amd_get_sfh_info(&sfh_info, MT_HPD);
>> switch (sfh_info.user_present) {
>> diff --git a/include/linux/amd-pmf-io.h b/include/linux/amd-pmf-io.h
>> index 4f82973f6ad2..dac0af573a16 100644
>> --- a/include/linux/amd-pmf-io.h
>> +++ b/include/linux/amd-pmf-io.h
>> @@ -31,6 +31,7 @@ int amd_pmf_set_gfx_data(struct amd_gpu_pmf_data *pmf);
>> /* amd-sfh */
>> enum sfh_message_type {
>> MT_HPD,
>> + MT_ALS,
>> };
>>
>> enum hpd_info {
>> @@ -40,6 +41,7 @@ enum hpd_info {
>> };
>>
>> struct amd_sfh_info {
>> + u32 ambient_light;
>> u8 user_present;
>> /* add future caps below */
>> };
>>
>
