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HID: amd_sfh: Add illuminance mask to limit ALS max value
ALS illuminance value present only in first 15 bits from SFH firmware
for V2 platforms. Hence added a mask of 15 bit to limit ALS max
illuminance values to get correct illuminance value.
Fixes: 0aad9c95eb
("HID: amd_sfh: Extend ALS support for newer AMD platform")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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parent
a7072c01c3
commit
91aaea527b
1 changed files with 3 additions and 1 deletions
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@ -27,6 +27,7 @@
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#define HID_USAGE_SENSOR_STATE_READY_ENUM 0x02
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#define HID_USAGE_SENSOR_STATE_INITIALIZING_ENUM 0x05
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#define HID_USAGE_SENSOR_EVENT_DATA_UPDATED_ENUM 0x04
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#define ILLUMINANCE_MASK GENMASK(14, 0)
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int get_report_descriptor(int sensor_idx, u8 *rep_desc)
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{
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@ -246,7 +247,8 @@ u8 get_input_report(u8 current_index, int sensor_idx, int report_id, struct amd_
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get_common_inputs(&als_input.common_property, report_id);
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/* For ALS ,V2 Platforms uses C2P_MSG5 register instead of DRAM access method */
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if (supported_input == V2_STATUS)
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als_input.illuminance_value = (int)readl(privdata->mmio + AMD_C2P_MSG(5));
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als_input.illuminance_value =
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readl(privdata->mmio + AMD_C2P_MSG(5)) & ILLUMINANCE_MASK;
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else
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als_input.illuminance_value =
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(int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
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