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@@ -1,4 +1,4 @@
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-From f5cedf8d1db6b4a2107e8061aa61086647b32ab4 Mon Sep 17 00:00:00 2001
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+From b485239f375af4576846cfeb3d3de9338d7c7fca Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:20 +0100
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Subject: [PATCH] platform/surface: aggregator: Improve documentation and
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@@ -289,7 +289,7 @@ index 45501b6e54e8a..5c4ae1a261831 100644
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--
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2.43.0
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-From 8682597843bafdccebc5dbe40d6c4025dbbebca8 Mon Sep 17 00:00:00 2001
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+From 69c2a8e68aca66851c845903701871b9f71aa97c Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:21 +0100
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Subject: [PATCH] platform/surface: aggregator: Add target and source IDs to
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@@ -486,7 +486,7 @@ index 2a2c17771d014..55cc61bba1da6 100644
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--
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2.43.0
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-From fc00f95b2a55287e11080138b4768d99b783483a Mon Sep 17 00:00:00 2001
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+From 2c39117451ac4ff8c8cfbf8145d75476bb2049da Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:22 +0100
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Subject: [PATCH] platform/surface: aggregator_hub: Use target-ID enum instead
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@@ -529,7 +529,7 @@ index 43061514be382..62f27cdb6ca8f 100644
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--
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2.43.0
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-From 6f2974c15d410ad04a8d088a26963978b291d9af Mon Sep 17 00:00:00 2001
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+From 557688c8fb79ccab9336084de3e42256bc0bba71 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:23 +0100
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Subject: [PATCH] platform/surface: aggregator_tabletsw: Use target-ID enum
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@@ -581,7 +581,7 @@ index af8b547cffdc6..c8ecbdbb516c5 100644
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--
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2.43.0
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-From aa6b853eb3725174a918c12d24b4ab1282cf24cf Mon Sep 17 00:00:00 2001
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+From fde3b7b3d4239a851fcbd2f0c6bf2cc52d8f8b0f Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:24 +0100
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Subject: [PATCH] platform/surface: dtx: Use target-ID enum instead of
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@@ -679,7 +679,7 @@ index ed36944467f9f..0de76a784a35f 100644
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--
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2.43.0
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-From 4677f73f0eb946490b0aaff44615d256efde3955 Mon Sep 17 00:00:00 2001
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+From 62cba06b475782a9d876e239b7a4a9e7320fabda Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:25 +0100
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Subject: [PATCH] HID: surface-hid: Use target-ID enum instead of hard-coding
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@@ -713,7 +713,7 @@ index 0635341bc5174..42933bf3e925f 100644
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--
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2.43.0
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-From 0312f5f738c011e405d648161477af225258dec5 Mon Sep 17 00:00:00 2001
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+From b652f52830fed086d0d8c1a16d7aa8e48743188d Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:26 +0100
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Subject: [PATCH] platform/surface: aggregator: Enforce use of target-ID enum
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@@ -949,7 +949,7 @@ index 46c45d1b63682..4da20b7a0ee5e 100644
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--
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2.43.0
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-From ed292028af8f1fdc9d0cff30aa98444b79e2c277 Mon Sep 17 00:00:00 2001
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+From b16cc48e61fb290cbc81fd7e45d2a66770459e6a Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Fri, 2 Dec 2022 23:33:27 +0100
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Subject: [PATCH] platform/surface: aggregator_registry: Fix target-ID of
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@@ -1004,7 +1004,7 @@ index 023f126121d7d..296f72d52e6a6 100644
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--
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2.43.0
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-From beb00051bb98b1d9d921d1ee3a305210587e9107 Mon Sep 17 00:00:00 2001
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+From f7eb5245e8e253df7ec399d45b5c44d47904c01b Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Tue, 20 Dec 2022 18:56:08 +0100
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Subject: [PATCH] platform/surface: aggregator: Rename top-level request
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@@ -1551,7 +1551,7 @@ index 4da20b7a0ee5e..1545e5567b152 100644
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--
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2.43.0
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-From 32eec324b754d6e810b1b2381fd0b034166873ba Mon Sep 17 00:00:00 2001
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+From 7b63e1f2a5cfa18d867a206b08e6cd0cbf321e8d Mon Sep 17 00:00:00 2001
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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Date: Wed, 18 Jan 2023 11:38:23 +0200
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Subject: [PATCH] platform/surface: Switch to use acpi_evaluate_dsm_typed()
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@@ -1607,7 +1607,7 @@ index f004a24952013..7b6d887dccdbf 100644
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--
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2.43.0
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-From 5d97af80f3653c66417c797d4a485fc1ca2b9fb0 Mon Sep 17 00:00:00 2001
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+From 0f5c1efd939ca9d0d7442aedb1b067bdfd701107 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Sat, 4 Mar 2023 20:09:36 +0100
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Subject: [PATCH] platform/surface: aggregator_tabletsw: Properly handle
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@@ -1915,7 +1915,7 @@ index a18e9fc7896b3..f9a58db6afde4 100644
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--
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2.43.0
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-From 76d69fb396cacbd71aeccc9c53247725135b8bd9 Mon Sep 17 00:00:00 2001
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+From 89dc1d5972b9c2001086ca9aa1982fd669258763 Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Sun, 19 Feb 2023 23:33:43 +0100
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Subject: [PATCH] platform/surface: aggregator_tabletsw: Add support for
|
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@@ -2032,7 +2032,7 @@ index f9a58db6afde4..4a029f5db20a9 100644
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--
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2.43.0
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-From 909b56be0047847f2870bf57a498774fba5fc315 Mon Sep 17 00:00:00 2001
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+From 0ef185523ee176cfa2fd105fcc89d3f2f617eeaf Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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|
Date: Thu, 18 May 2023 22:57:17 +0200
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Subject: [PATCH] platform/surface: aggregator_tabletsw: Add support for book
|
|
@@ -2086,7 +2086,7 @@ index 4a029f5db20a9..c0a1a5869246e 100644
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|
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--
|
|
|
2.43.0
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-From ef96617c98f9f560b45e213b535457971c27cda0 Mon Sep 17 00:00:00 2001
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+From dcb71bedc807baae6102c9a8d2534d0477af51cd Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
Date: Sun, 19 Feb 2023 23:41:18 +0100
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|
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Subject: [PATCH] platform/surface: aggregator_registry: Add support for
|
|
@@ -2117,7 +2117,7 @@ index 296f72d52e6a6..0fe5be5396525 100644
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|
|
--
|
|
|
2.43.0
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-From dbc0096a01fcda5b9b9291a98987d03a7304a602 Mon Sep 17 00:00:00 2001
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+From 776b9d87b6b47f6e83688766418965349b9e75fc Mon Sep 17 00:00:00 2001
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From: Maximilian Luz <luzmaximilian@gmail.com>
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|
|
Date: Sun, 22 Oct 2023 14:57:11 +0200
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|
|
Subject: [PATCH] platform/surface: aggregator_registry: Add support for
|
|
@@ -2150,7 +2150,7 @@ index 0fe5be5396525..0d8c8395c5886 100644
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|
|
--
|
|
|
2.43.0
|
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|
|
|
|
-From 537afd00ca1486fc05a6d86946134d965c182c60 Mon Sep 17 00:00:00 2001
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+From c650a4d3042c1cb708251d910fbf048c84f40682 Mon Sep 17 00:00:00 2001
|
|
|
From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
Date: Mon, 20 Nov 2023 19:47:00 +0100
|
|
|
Subject: [PATCH] platform/surface: aggregator_registry: Add support for
|
|
@@ -2220,3 +2220,737 @@ index 0d8c8395c5886..530db4db71aba 100644
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|
|
--
|
|
|
2.43.0
|
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|
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+From ee3c245f0f101a020ec8df9f961cc0354b21ef64 Mon Sep 17 00:00:00 2001
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+From: Ivor Wanders <ivor@iwanders.net>
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+Date: Mon, 18 Dec 2023 19:21:32 -0500
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|
+Subject: [PATCH] platform/surface: aggregator_registry: add entry for fan
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|
|
+ speed
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+
|
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|
+Add an entry for the fan speed function.
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|
+Add this new entry to the Surface Pro 9 group.
|
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+
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|
+Signed-off-by: Ivor Wanders <ivor@iwanders.net>
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+Link: https://github.com/linux-surface/kernel/pull/144
|
|
|
+Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
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|
|
+Patchset: surface-sam
|
|
|
+---
|
|
|
+ drivers/platform/surface/surface_aggregator_registry.c | 7 +++++++
|
|
|
+ 1 file changed, 7 insertions(+)
|
|
|
+
|
|
|
+diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
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|
+index 530db4db71aba..b0db25886c996 100644
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|
|
+--- a/drivers/platform/surface/surface_aggregator_registry.c
|
|
|
++++ b/drivers/platform/surface/surface_aggregator_registry.c
|
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|
+@@ -74,6 +74,12 @@ static const struct software_node ssam_node_tmp_pprof = {
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|
+ .parent = &ssam_node_root,
|
|
|
+ };
|
|
|
+
|
|
|
++/* Fan speed function. */
|
|
|
++static const struct software_node ssam_node_fan_speed = {
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|
|
++ .name = "ssam:01:05:01:01:01",
|
|
|
++ .parent = &ssam_node_root,
|
|
|
++};
|
|
|
++
|
|
|
+ /* Tablet-mode switch via KIP subsystem. */
|
|
|
+ static const struct software_node ssam_node_kip_tablet_switch = {
|
|
|
+ .name = "ssam:01:0e:01:00:01",
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|
|
+@@ -319,6 +325,7 @@ static const struct software_node *ssam_node_group_sp9[] = {
|
|
|
+ &ssam_node_bat_ac,
|
|
|
+ &ssam_node_bat_main,
|
|
|
+ &ssam_node_tmp_pprof,
|
|
|
++ &ssam_node_fan_speed,
|
|
|
+ &ssam_node_pos_tablet_switch,
|
|
|
+ &ssam_node_hid_kip_keyboard,
|
|
|
+ &ssam_node_hid_kip_penstash,
|
|
|
+--
|
|
|
+2.43.0
|
|
|
+
|
|
|
+From 0aecdee1605a40edddb894fa823a9bc568f05f3c Mon Sep 17 00:00:00 2001
|
|
|
+From: Ivor Wanders <ivor@iwanders.net>
|
|
|
+Date: Thu, 30 Nov 2023 20:20:24 -0500
|
|
|
+Subject: [PATCH] hwmon: add fan speed monitoring driver for Surface devices
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+
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+Adds a driver that provides read only access to the fan speed for Microsoft
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+Surface Pro devices. The fan speed is always regulated by the EC and cannot
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+be influenced directly.
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+
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+Signed-off-by: Ivor Wanders <ivor@iwanders.net>
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+Link: https://github.com/linux-surface/kernel/pull/144
|
|
|
+Patchset: surface-sam
|
|
|
+---
|
|
|
+ Documentation/hwmon/index.rst | 1 +
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|
|
+ Documentation/hwmon/surface_fan.rst | 25 ++++++++
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|
+ MAINTAINERS | 8 +++
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|
|
+ drivers/hwmon/Kconfig | 13 ++++
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|
+ drivers/hwmon/Makefile | 1 +
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|
|
+ drivers/hwmon/surface_fan.c | 93 +++++++++++++++++++++++++++++
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|
|
+ 6 files changed, 141 insertions(+)
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|
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+ create mode 100644 Documentation/hwmon/surface_fan.rst
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|
+ create mode 100644 drivers/hwmon/surface_fan.c
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+
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|
|
+diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
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+index c1d11cf13eef1..0e52bb60dc6d0 100644
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|
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+--- a/Documentation/hwmon/index.rst
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|
|
++++ b/Documentation/hwmon/index.rst
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|
|
+@@ -192,6 +192,7 @@ Hardware Monitoring Kernel Drivers
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|
+ smsc47m1
|
|
|
+ sparx5-temp
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|
+ stpddc60
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++ surface_fan
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|
|
+ sy7636a-hwmon
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+ tc654
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|
+ tc74
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|
+diff --git a/Documentation/hwmon/surface_fan.rst b/Documentation/hwmon/surface_fan.rst
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+new file mode 100644
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|
|
+index 0000000000000..07942574c4f0c
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|
|
+--- /dev/null
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|
|
++++ b/Documentation/hwmon/surface_fan.rst
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|
|
+@@ -0,0 +1,25 @@
|
|
|
++.. SPDX-License-Identifier: GPL-2.0-or-later
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++
|
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|
++Kernel driver surface_fan
|
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++=========================
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++
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|
++Supported Devices:
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|
++
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|
|
++ * Microsoft Surface Pro 9
|
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++
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++Author: Ivor Wanders <ivor@iwanders.net>
|
|
|
++
|
|
|
++Description
|
|
|
++-----------
|
|
|
++
|
|
|
++This provides monitoring of the fan found in some Microsoft Surface Pro devices,
|
|
|
++like the Surface Pro 9. The fan is always controlled by the onboard controller.
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++
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|
|
++Sysfs interface
|
|
|
++---------------
|
|
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++
|
|
|
++======================= ======= =========================================
|
|
|
++Name Perm Description
|
|
|
++======================= ======= =========================================
|
|
|
++``fan1_input`` RO Current fan speed in RPM.
|
|
|
++======================= ======= =========================================
|
|
|
+diff --git a/MAINTAINERS b/MAINTAINERS
|
|
|
+index 13d1078808bb5..9f7702a82842d 100644
|
|
|
+--- a/MAINTAINERS
|
|
|
++++ b/MAINTAINERS
|
|
|
+@@ -13700,6 +13700,14 @@ F: Documentation/driver-api/surface_aggregator/clients/dtx.rst
|
|
|
+ F: drivers/platform/surface/surface_dtx.c
|
|
|
+ F: include/uapi/linux/surface_aggregator/dtx.h
|
|
|
+
|
|
|
++MICROSOFT SURFACE SENSOR FAN DRIVER
|
|
|
++M: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
++M: Ivor Wanders <ivor@iwanders.net>
|
|
|
++L: linux-hwmon@vger.kernel.org
|
|
|
++S: Maintained
|
|
|
++F: Documentation/hwmon/surface_fan.rst
|
|
|
++F: drivers/hwmon/surface_fan.c
|
|
|
++
|
|
|
+ MICROSOFT SURFACE GPE LID SUPPORT DRIVER
|
|
|
+ M: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+ L: platform-driver-x86@vger.kernel.org
|
|
|
+diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
|
|
|
+index a5143d01b95f8..4a5f0ffd13e7a 100644
|
|
|
+--- a/drivers/hwmon/Kconfig
|
|
|
++++ b/drivers/hwmon/Kconfig
|
|
|
+@@ -1925,6 +1925,19 @@ config SENSORS_SMM665
|
|
|
+ This driver can also be built as a module. If so, the module will
|
|
|
+ be called smm665.
|
|
|
+
|
|
|
++config SENSORS_SURFACE_FAN
|
|
|
++ tristate "Surface Fan Driver"
|
|
|
++ depends on SURFACE_AGGREGATOR
|
|
|
++ help
|
|
|
++ Driver that provides monitoring of the fan on Surface Pro devices that
|
|
|
++ have a fan, like the Surface Pro 9.
|
|
|
++
|
|
|
++ This makes the fan's current speed accessible through the hwmon
|
|
|
++ system. It does not provide control over the fan, the firmware is
|
|
|
++ responsible for that, this driver merely provides monitoring.
|
|
|
++
|
|
|
++ Select M or Y here, if you want to be able to read the fan's speed.
|
|
|
++
|
|
|
+ config SENSORS_ADC128D818
|
|
|
+ tristate "Texas Instruments ADC128D818"
|
|
|
+ depends on I2C
|
|
|
+diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
|
|
|
+index 11d076cad8a2d..4481011816074 100644
|
|
|
+--- a/drivers/hwmon/Makefile
|
|
|
++++ b/drivers/hwmon/Makefile
|
|
|
+@@ -192,6 +192,7 @@ obj-$(CONFIG_SENSORS_SMSC47M1) += smsc47m1.o
|
|
|
+ obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
|
|
|
+ obj-$(CONFIG_SENSORS_SPARX5) += sparx5-temp.o
|
|
|
+ obj-$(CONFIG_SENSORS_STTS751) += stts751.o
|
|
|
++obj-$(CONFIG_SENSORS_SURFACE_FAN)+= surface_fan.o
|
|
|
+ obj-$(CONFIG_SENSORS_SY7636A) += sy7636a-hwmon.o
|
|
|
+ obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o
|
|
|
+ obj-$(CONFIG_SENSORS_TC74) += tc74.o
|
|
|
+diff --git a/drivers/hwmon/surface_fan.c b/drivers/hwmon/surface_fan.c
|
|
|
+new file mode 100644
|
|
|
+index 0000000000000..7c2e3ae3eb40e
|
|
|
+--- /dev/null
|
|
|
++++ b/drivers/hwmon/surface_fan.c
|
|
|
+@@ -0,0 +1,93 @@
|
|
|
++// SPDX-License-Identifier: GPL-2.0+
|
|
|
++/*
|
|
|
++ * Surface Fan driver for Surface System Aggregator Module. It provides access
|
|
|
++ * to the fan's rpm through the hwmon system.
|
|
|
++ *
|
|
|
++ * Copyright (C) 2023 Ivor Wanders <ivor@iwanders.net>
|
|
|
++ */
|
|
|
++
|
|
|
++#include <linux/hwmon.h>
|
|
|
++#include <linux/kernel.h>
|
|
|
++#include <linux/module.h>
|
|
|
++#include <linux/surface_aggregator/device.h>
|
|
|
++#include <linux/types.h>
|
|
|
++
|
|
|
++// SSAM
|
|
|
++SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_fan_rpm_get, __le16, {
|
|
|
++ .target_category = SSAM_SSH_TC_FAN,
|
|
|
++ .command_id = 0x01,
|
|
|
++});
|
|
|
++
|
|
|
++// hwmon
|
|
|
++umode_t surface_fan_hwmon_is_visible(const void *drvdata,
|
|
|
++ enum hwmon_sensor_types type, u32 attr,
|
|
|
++ int channel)
|
|
|
++{
|
|
|
++ return 0444;
|
|
|
++}
|
|
|
++
|
|
|
++static int surface_fan_hwmon_read(struct device *dev,
|
|
|
++ enum hwmon_sensor_types type, u32 attr,
|
|
|
++ int channel, long *val)
|
|
|
++{
|
|
|
++ struct ssam_device *sdev = dev_get_drvdata(dev);
|
|
|
++ int ret;
|
|
|
++ __le16 value;
|
|
|
++
|
|
|
++ ret = __ssam_fan_rpm_get(sdev, &value);
|
|
|
++ if (ret)
|
|
|
++ return ret;
|
|
|
++
|
|
|
++ *val = le16_to_cpu(value);
|
|
|
++
|
|
|
++ return ret;
|
|
|
++}
|
|
|
++
|
|
|
++static const struct hwmon_channel_info *const surface_fan_info[] = {
|
|
|
++ HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
|
|
|
++ NULL
|
|
|
++};
|
|
|
++
|
|
|
++static const struct hwmon_ops surface_fan_hwmon_ops = {
|
|
|
++ .is_visible = surface_fan_hwmon_is_visible,
|
|
|
++ .read = surface_fan_hwmon_read,
|
|
|
++};
|
|
|
++
|
|
|
++static const struct hwmon_chip_info surface_fan_chip_info = {
|
|
|
++ .ops = &surface_fan_hwmon_ops,
|
|
|
++ .info = surface_fan_info,
|
|
|
++};
|
|
|
++
|
|
|
++static int surface_fan_probe(struct ssam_device *sdev)
|
|
|
++{
|
|
|
++ struct device *hdev;
|
|
|
++
|
|
|
++ hdev = devm_hwmon_device_register_with_info(&sdev->dev,
|
|
|
++ "surface_fan", sdev,
|
|
|
++ &surface_fan_chip_info,
|
|
|
++ NULL);
|
|
|
++ if (IS_ERR(hdev))
|
|
|
++ return PTR_ERR(hdev);
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static const struct ssam_device_id ssam_fan_match[] = {
|
|
|
++ { SSAM_SDEV(FAN, SAM, 0x01, 0x01) },
|
|
|
++ {},
|
|
|
++};
|
|
|
++MODULE_DEVICE_TABLE(ssam, ssam_fan_match);
|
|
|
++
|
|
|
++static struct ssam_device_driver surface_fan = {
|
|
|
++ .probe = surface_fan_probe,
|
|
|
++ .match_table = ssam_fan_match,
|
|
|
++ .driver = {
|
|
|
++ .name = "surface_fan",
|
|
|
++ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
|
|
|
++ },
|
|
|
++};
|
|
|
++module_ssam_device_driver(surface_fan);
|
|
|
++
|
|
|
++MODULE_AUTHOR("Ivor Wanders <ivor@iwanders.net>");
|
|
|
++MODULE_DESCRIPTION("Fan Driver for Surface System Aggregator Module");
|
|
|
++MODULE_LICENSE("GPL");
|
|
|
+--
|
|
|
+2.43.0
|
|
|
+
|
|
|
+From 75ed426ff1c6b08c6198be537e9b22724a86fc5d Mon Sep 17 00:00:00 2001
|
|
|
+From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Date: Sat, 30 Dec 2023 18:07:54 +0100
|
|
|
+Subject: [PATCH] hwmon: Add thermal sensor driver for Surface Aggregator
|
|
|
+ Module
|
|
|
+
|
|
|
+Some of the newer Microsoft Surface devices (such as the Surface Book
|
|
|
+3 and Pro 9) have thermal sensors connected via the Surface Aggregator
|
|
|
+Module (the embedded controller on those devices). Add a basic driver
|
|
|
+to read out the temperature values of those sensors.
|
|
|
+
|
|
|
+Link: https://github.com/linux-surface/surface-aggregator-module/issues/59
|
|
|
+Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Patchset: surface-sam
|
|
|
+---
|
|
|
+ drivers/hwmon/Kconfig | 10 +++
|
|
|
+ drivers/hwmon/Makefile | 1 +
|
|
|
+ drivers/hwmon/surface_temp.c | 165 +++++++++++++++++++++++++++++++++++
|
|
|
+ 3 files changed, 176 insertions(+)
|
|
|
+ create mode 100644 drivers/hwmon/surface_temp.c
|
|
|
+
|
|
|
+diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
|
|
|
+index 4a5f0ffd13e7a..be7243e7ccb23 100644
|
|
|
+--- a/drivers/hwmon/Kconfig
|
|
|
++++ b/drivers/hwmon/Kconfig
|
|
|
+@@ -1938,6 +1938,16 @@ config SENSORS_SURFACE_FAN
|
|
|
+
|
|
|
+ Select M or Y here, if you want to be able to read the fan's speed.
|
|
|
+
|
|
|
++config SENSORS_SURFACE_TEMP
|
|
|
++ tristate "Microsoft Surface Thermal Sensor Driver"
|
|
|
++ depends on SURFACE_AGGREGATOR
|
|
|
++ help
|
|
|
++ Driver for monitoring thermal sensors connected via the Surface
|
|
|
++ Aggregator Module (embedded controller) on Microsoft Surface devices.
|
|
|
++
|
|
|
++ This driver can also be built as a module. If so, the module
|
|
|
++ will be called surface_temp.
|
|
|
++
|
|
|
+ config SENSORS_ADC128D818
|
|
|
+ tristate "Texas Instruments ADC128D818"
|
|
|
+ depends on I2C
|
|
|
+diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
|
|
|
+index 4481011816074..c22cfad4ca112 100644
|
|
|
+--- a/drivers/hwmon/Makefile
|
|
|
++++ b/drivers/hwmon/Makefile
|
|
|
+@@ -193,6 +193,7 @@ obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
|
|
|
+ obj-$(CONFIG_SENSORS_SPARX5) += sparx5-temp.o
|
|
|
+ obj-$(CONFIG_SENSORS_STTS751) += stts751.o
|
|
|
+ obj-$(CONFIG_SENSORS_SURFACE_FAN)+= surface_fan.o
|
|
|
++obj-$(CONFIG_SENSORS_SURFACE_TEMP)+= surface_temp.o
|
|
|
+ obj-$(CONFIG_SENSORS_SY7636A) += sy7636a-hwmon.o
|
|
|
+ obj-$(CONFIG_SENSORS_AMC6821) += amc6821.o
|
|
|
+ obj-$(CONFIG_SENSORS_TC74) += tc74.o
|
|
|
+diff --git a/drivers/hwmon/surface_temp.c b/drivers/hwmon/surface_temp.c
|
|
|
+new file mode 100644
|
|
|
+index 0000000000000..48c3e826713f6
|
|
|
+--- /dev/null
|
|
|
++++ b/drivers/hwmon/surface_temp.c
|
|
|
+@@ -0,0 +1,165 @@
|
|
|
++// SPDX-License-Identifier: GPL-2.0+
|
|
|
++/*
|
|
|
++ * Thermal sensor subsystem driver for Surface System Aggregator Module (SSAM).
|
|
|
++ *
|
|
|
++ * Copyright (C) 2022-2023 Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
++ */
|
|
|
++
|
|
|
++#include <linux/bitops.h>
|
|
|
++#include <linux/hwmon.h>
|
|
|
++#include <linux/kernel.h>
|
|
|
++#include <linux/module.h>
|
|
|
++#include <linux/types.h>
|
|
|
++
|
|
|
++#include <linux/surface_aggregator/controller.h>
|
|
|
++#include <linux/surface_aggregator/device.h>
|
|
|
++
|
|
|
++
|
|
|
++/* -- SAM interface. -------------------------------------------------------- */
|
|
|
++
|
|
|
++SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_tmp_get_available_sensors, __le16, {
|
|
|
++ .target_category = SSAM_SSH_TC_TMP,
|
|
|
++ .command_id = 0x04,
|
|
|
++});
|
|
|
++
|
|
|
++SSAM_DEFINE_SYNC_REQUEST_MD_R(__ssam_tmp_get_temperature, __le16, {
|
|
|
++ .target_category = SSAM_SSH_TC_TMP,
|
|
|
++ .command_id = 0x01,
|
|
|
++});
|
|
|
++
|
|
|
++static int ssam_tmp_get_available_sensors(struct ssam_device *sdev, s16 *sensors)
|
|
|
++{
|
|
|
++ __le16 sensors_le;
|
|
|
++ int status;
|
|
|
++
|
|
|
++ status = __ssam_tmp_get_available_sensors(sdev, &sensors_le);
|
|
|
++ if (status)
|
|
|
++ return status;
|
|
|
++
|
|
|
++ *sensors = le16_to_cpu(sensors_le);
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static int ssam_tmp_get_temperature(struct ssam_device *sdev, u8 iid, long *temperature)
|
|
|
++{
|
|
|
++ __le16 temp_le;
|
|
|
++ int status;
|
|
|
++
|
|
|
++ status = __ssam_tmp_get_temperature(sdev->ctrl, sdev->uid.target, iid, &temp_le);
|
|
|
++ if (status)
|
|
|
++ return status;
|
|
|
++
|
|
|
++ /* Convert 1/10 °K to 1/1000 °C */
|
|
|
++ *temperature = (le16_to_cpu(temp_le) - 2731) * 100L;
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++
|
|
|
++/* -- Driver.---------------------------------------------------------------- */
|
|
|
++
|
|
|
++struct ssam_temp {
|
|
|
++ struct ssam_device *sdev;
|
|
|
++ s16 sensors;
|
|
|
++};
|
|
|
++
|
|
|
++static umode_t ssam_temp_hwmon_is_visible(const void *data,
|
|
|
++ enum hwmon_sensor_types type,
|
|
|
++ u32 attr, int channel)
|
|
|
++{
|
|
|
++ const struct ssam_temp *ssam_temp = data;
|
|
|
++
|
|
|
++ if (!(ssam_temp->sensors & BIT(channel)))
|
|
|
++ return 0;
|
|
|
++
|
|
|
++ return 0444;
|
|
|
++}
|
|
|
++
|
|
|
++static int ssam_temp_hwmon_read(struct device *dev,
|
|
|
++ enum hwmon_sensor_types type,
|
|
|
++ u32 attr, int channel, long *value)
|
|
|
++{
|
|
|
++ const struct ssam_temp *ssam_temp = dev_get_drvdata(dev);
|
|
|
++
|
|
|
++ return ssam_tmp_get_temperature(ssam_temp->sdev, channel + 1, value);
|
|
|
++}
|
|
|
++
|
|
|
++static const struct hwmon_channel_info * const ssam_temp_hwmon_info[] = {
|
|
|
++ HWMON_CHANNEL_INFO(chip,
|
|
|
++ HWMON_C_REGISTER_TZ),
|
|
|
++ /* We have at most 16 thermal sensor channels. */
|
|
|
++ HWMON_CHANNEL_INFO(temp,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT,
|
|
|
++ HWMON_T_INPUT),
|
|
|
++ NULL
|
|
|
++};
|
|
|
++
|
|
|
++static const struct hwmon_ops ssam_temp_hwmon_ops = {
|
|
|
++ .is_visible = ssam_temp_hwmon_is_visible,
|
|
|
++ .read = ssam_temp_hwmon_read,
|
|
|
++};
|
|
|
++
|
|
|
++static const struct hwmon_chip_info ssam_temp_hwmon_chip_info = {
|
|
|
++ .ops = &ssam_temp_hwmon_ops,
|
|
|
++ .info = ssam_temp_hwmon_info,
|
|
|
++};
|
|
|
++
|
|
|
++static int ssam_temp_probe(struct ssam_device *sdev)
|
|
|
++{
|
|
|
++ struct ssam_temp *ssam_temp;
|
|
|
++ struct device *hwmon_dev;
|
|
|
++ s16 sensors;
|
|
|
++ int status;
|
|
|
++
|
|
|
++ status = ssam_tmp_get_available_sensors(sdev, &sensors);
|
|
|
++ if (status)
|
|
|
++ return status;
|
|
|
++
|
|
|
++ ssam_temp = devm_kzalloc(&sdev->dev, sizeof(*ssam_temp), GFP_KERNEL);
|
|
|
++ if (!ssam_temp)
|
|
|
++ return -ENOMEM;
|
|
|
++
|
|
|
++ ssam_temp->sdev = sdev;
|
|
|
++ ssam_temp->sensors = sensors;
|
|
|
++
|
|
|
++ hwmon_dev = devm_hwmon_device_register_with_info(&sdev->dev,
|
|
|
++ "surface_thermal", ssam_temp, &ssam_temp_hwmon_chip_info,
|
|
|
++ NULL);
|
|
|
++ if (IS_ERR(hwmon_dev))
|
|
|
++ return PTR_ERR(hwmon_dev);
|
|
|
++
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
++static const struct ssam_device_id ssam_temp_match[] = {
|
|
|
++ { SSAM_SDEV(TMP, SAM, 0x00, 0x02) },
|
|
|
++ { },
|
|
|
++};
|
|
|
++MODULE_DEVICE_TABLE(ssam, ssam_temp_match);
|
|
|
++
|
|
|
++static struct ssam_device_driver ssam_temp = {
|
|
|
++ .probe = ssam_temp_probe,
|
|
|
++ .match_table = ssam_temp_match,
|
|
|
++ .driver = {
|
|
|
++ .name = "surface_temp",
|
|
|
++ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
|
|
|
++ },
|
|
|
++};
|
|
|
++module_ssam_device_driver(ssam_temp);
|
|
|
++
|
|
|
++MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
|
|
|
++MODULE_DESCRIPTION("Thermal sensor subsystem driver for Surface System Aggregator Module");
|
|
|
++MODULE_LICENSE("GPL");
|
|
|
+--
|
|
|
+2.43.0
|
|
|
+
|
|
|
+From aef610f92f0370d3b11472e302da555edca811dd Mon Sep 17 00:00:00 2001
|
|
|
+From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Date: Sat, 30 Dec 2023 18:12:23 +0100
|
|
|
+Subject: [PATCH] hwmon: surface_temp: Add support for sensor names
|
|
|
+
|
|
|
+The thermal subsystem of the Surface Aggregator Module allows us to
|
|
|
+query the names of the respective thermal sensors. Forward those to
|
|
|
+userspace.
|
|
|
+
|
|
|
+Signed-off-by: Ivor Wanders <ivor@iwanders.net>
|
|
|
+Co-Developed-by: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Patchset: surface-sam
|
|
|
+---
|
|
|
+ drivers/hwmon/surface_temp.c | 113 +++++++++++++++++++++++++++++------
|
|
|
+ 1 file changed, 96 insertions(+), 17 deletions(-)
|
|
|
+
|
|
|
+diff --git a/drivers/hwmon/surface_temp.c b/drivers/hwmon/surface_temp.c
|
|
|
+index 48c3e826713f6..4c08926139dbf 100644
|
|
|
+--- a/drivers/hwmon/surface_temp.c
|
|
|
++++ b/drivers/hwmon/surface_temp.c
|
|
|
+@@ -17,6 +17,27 @@
|
|
|
+
|
|
|
+ /* -- SAM interface. -------------------------------------------------------- */
|
|
|
+
|
|
|
++/*
|
|
|
++ * Available sensors are indicated by a 16-bit bitfield, where a 1 marks the
|
|
|
++ * presence of a sensor. So we have at most 16 possible sensors/channels.
|
|
|
++ */
|
|
|
++#define SSAM_TMP_SENSOR_MAX_COUNT 16
|
|
|
++
|
|
|
++/*
|
|
|
++ * All names observed so far are 6 characters long, but there's only
|
|
|
++ * zeros after the name, so perhaps they can be longer. This number reflects
|
|
|
++ * the maximum zero-padded space observed in the returned buffer.
|
|
|
++ */
|
|
|
++#define SSAM_TMP_SENSOR_NAME_LENGTH 18
|
|
|
++
|
|
|
++struct ssam_tmp_get_name_rsp {
|
|
|
++ __le16 unknown1;
|
|
|
++ char unknown2;
|
|
|
++ char name[SSAM_TMP_SENSOR_NAME_LENGTH];
|
|
|
++} __packed;
|
|
|
++
|
|
|
++static_assert(sizeof(struct ssam_tmp_get_name_rsp) == 21);
|
|
|
++
|
|
|
+ SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_tmp_get_available_sensors, __le16, {
|
|
|
+ .target_category = SSAM_SSH_TC_TMP,
|
|
|
+ .command_id = 0x04,
|
|
|
+@@ -27,6 +48,11 @@ SSAM_DEFINE_SYNC_REQUEST_MD_R(__ssam_tmp_get_temperature, __le16, {
|
|
|
+ .command_id = 0x01,
|
|
|
+ });
|
|
|
+
|
|
|
++SSAM_DEFINE_SYNC_REQUEST_MD_R(__ssam_tmp_get_name, struct ssam_tmp_get_name_rsp, {
|
|
|
++ .target_category = SSAM_SSH_TC_TMP,
|
|
|
++ .command_id = 0x0e,
|
|
|
++});
|
|
|
++
|
|
|
+ static int ssam_tmp_get_available_sensors(struct ssam_device *sdev, s16 *sensors)
|
|
|
+ {
|
|
|
+ __le16 sensors_le;
|
|
|
+@@ -54,12 +80,37 @@ static int ssam_tmp_get_temperature(struct ssam_device *sdev, u8 iid, long *temp
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
++static int ssam_tmp_get_name(struct ssam_device *sdev, u8 iid, char *buf, size_t buf_len)
|
|
|
++{
|
|
|
++ struct ssam_tmp_get_name_rsp name_rsp;
|
|
|
++ int status;
|
|
|
++
|
|
|
++ status = __ssam_tmp_get_name(sdev->ctrl, sdev->uid.target, iid, &name_rsp);
|
|
|
++ if (status)
|
|
|
++ return status;
|
|
|
++
|
|
|
++ /*
|
|
|
++ * This should not fail unless the name in the returned struct is not
|
|
|
++ * null-terminated or someone changed something in the struct
|
|
|
++ * definitions above, since our buffer and struct have the same
|
|
|
++ * capacity by design. So if this fails blow this up with a warning.
|
|
|
++ * Since the more likely cause is that the returned string isn't
|
|
|
++ * null-terminated, we might have received garbage (as opposed to just
|
|
|
++ * an incomplete string), so also fail the function.
|
|
|
++ */
|
|
|
++ status = strscpy(buf, name_rsp.name, buf_len);
|
|
|
++ WARN_ON(status < 0);
|
|
|
++
|
|
|
++ return status < 0 ? status : 0;
|
|
|
++}
|
|
|
++
|
|
|
+
|
|
|
+ /* -- Driver.---------------------------------------------------------------- */
|
|
|
+
|
|
|
+ struct ssam_temp {
|
|
|
+ struct ssam_device *sdev;
|
|
|
+ s16 sensors;
|
|
|
++ char names[SSAM_TMP_SENSOR_MAX_COUNT][SSAM_TMP_SENSOR_NAME_LENGTH];
|
|
|
+ };
|
|
|
+
|
|
|
+ static umode_t ssam_temp_hwmon_is_visible(const void *data,
|
|
|
+@@ -83,33 +134,47 @@ static int ssam_temp_hwmon_read(struct device *dev,
|
|
|
+ return ssam_tmp_get_temperature(ssam_temp->sdev, channel + 1, value);
|
|
|
+ }
|
|
|
+
|
|
|
++static int ssam_temp_hwmon_read_string(struct device *dev,
|
|
|
++ enum hwmon_sensor_types type,
|
|
|
++ u32 attr, int channel, const char **str)
|
|
|
++{
|
|
|
++ const struct ssam_temp *ssam_temp = dev_get_drvdata(dev);
|
|
|
++
|
|
|
++ *str = ssam_temp->names[channel];
|
|
|
++ return 0;
|
|
|
++}
|
|
|
++
|
|
|
+ static const struct hwmon_channel_info * const ssam_temp_hwmon_info[] = {
|
|
|
+ HWMON_CHANNEL_INFO(chip,
|
|
|
+ HWMON_C_REGISTER_TZ),
|
|
|
+- /* We have at most 16 thermal sensor channels. */
|
|
|
++ /*
|
|
|
++ * We have at most SSAM_TMP_SENSOR_MAX_COUNT = 16 thermal sensor
|
|
|
++ * channels.
|
|
|
++ */
|
|
|
+ HWMON_CHANNEL_INFO(temp,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT,
|
|
|
+- HWMON_T_INPUT),
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL,
|
|
|
++ HWMON_T_INPUT | HWMON_T_LABEL),
|
|
|
+ NULL
|
|
|
+ };
|
|
|
+
|
|
|
+ static const struct hwmon_ops ssam_temp_hwmon_ops = {
|
|
|
+ .is_visible = ssam_temp_hwmon_is_visible,
|
|
|
+ .read = ssam_temp_hwmon_read,
|
|
|
++ .read_string = ssam_temp_hwmon_read_string,
|
|
|
+ };
|
|
|
+
|
|
|
+ static const struct hwmon_chip_info ssam_temp_hwmon_chip_info = {
|
|
|
+@@ -122,6 +187,7 @@ static int ssam_temp_probe(struct ssam_device *sdev)
|
|
|
+ struct ssam_temp *ssam_temp;
|
|
|
+ struct device *hwmon_dev;
|
|
|
+ s16 sensors;
|
|
|
++ int channel;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ status = ssam_tmp_get_available_sensors(sdev, &sensors);
|
|
|
+@@ -135,6 +201,19 @@ static int ssam_temp_probe(struct ssam_device *sdev)
|
|
|
+ ssam_temp->sdev = sdev;
|
|
|
+ ssam_temp->sensors = sensors;
|
|
|
+
|
|
|
++ /* Retrieve the name for each available sensor. */
|
|
|
++ for (channel = 0; channel < SSAM_TMP_SENSOR_MAX_COUNT; channel++)
|
|
|
++ {
|
|
|
++ if (!(sensors & BIT(channel)))
|
|
|
++ continue;
|
|
|
++
|
|
|
++ status = ssam_tmp_get_name(sdev, channel + 1,
|
|
|
++ ssam_temp->names[channel],
|
|
|
++ SSAM_TMP_SENSOR_NAME_LENGTH);
|
|
|
++ if (status)
|
|
|
++ return status;
|
|
|
++ }
|
|
|
++
|
|
|
+ hwmon_dev = devm_hwmon_device_register_with_info(&sdev->dev,
|
|
|
+ "surface_thermal", ssam_temp, &ssam_temp_hwmon_chip_info,
|
|
|
+ NULL);
|
|
|
+--
|
|
|
+2.43.0
|
|
|
+
|
|
|
+From e2cecbfd921d8e15791f549b26465aef5dabc001 Mon Sep 17 00:00:00 2001
|
|
|
+From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Date: Sat, 30 Dec 2023 18:21:12 +0100
|
|
|
+Subject: [PATCH] platform/surface: aggregator_registry: Add support for
|
|
|
+ thermal sensors on the Surface Pro 9
|
|
|
+
|
|
|
+The Surface Pro 9 has thermal sensors connected via the Surface
|
|
|
+Aggregator Module. Add a device node to support those.
|
|
|
+
|
|
|
+Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
+Patchset: surface-sam
|
|
|
+---
|
|
|
+ drivers/platform/surface/surface_aggregator_registry.c | 7 +++++++
|
|
|
+ 1 file changed, 7 insertions(+)
|
|
|
+
|
|
|
+diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
|
|
|
+index b0db25886c996..797802d16f319 100644
|
|
|
+--- a/drivers/platform/surface/surface_aggregator_registry.c
|
|
|
++++ b/drivers/platform/surface/surface_aggregator_registry.c
|
|
|
+@@ -74,6 +74,12 @@ static const struct software_node ssam_node_tmp_pprof = {
|
|
|
+ .parent = &ssam_node_root,
|
|
|
+ };
|
|
|
+
|
|
|
++/* Thermal sensors. */
|
|
|
++static const struct software_node ssam_node_tmp_sensors = {
|
|
|
++ .name = "ssam:01:03:01:00:02",
|
|
|
++ .parent = &ssam_node_root,
|
|
|
++};
|
|
|
++
|
|
|
+ /* Fan speed function. */
|
|
|
+ static const struct software_node ssam_node_fan_speed = {
|
|
|
+ .name = "ssam:01:05:01:01:01",
|
|
|
+@@ -325,6 +331,7 @@ static const struct software_node *ssam_node_group_sp9[] = {
|
|
|
+ &ssam_node_bat_ac,
|
|
|
+ &ssam_node_bat_main,
|
|
|
+ &ssam_node_tmp_pprof,
|
|
|
++ &ssam_node_tmp_sensors,
|
|
|
+ &ssam_node_fan_speed,
|
|
|
+ &ssam_node_pos_tablet_switch,
|
|
|
+ &ssam_node_hid_kip_keyboard,
|
|
|
+--
|
|
|
+2.43.0
|
|
|
+
|