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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
new file mode 100644
index 000000000..9e451bd93
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/gt215.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+#include <subdev/gpio.h>
+
+int
+gt215_therm_fan_sense(struct nvkm_therm *therm)
+{
+ struct nvkm_device *device = therm->subdev.device;
+ u32 tach = nvkm_rd32(device, 0x00e728) & 0x0000ffff;
+ u32 ctrl = nvkm_rd32(device, 0x00e720);
+ if (ctrl & 0x00000001)
+ return tach * 60 / 2;
+ return -ENODEV;
+}
+
+static void
+gt215_therm_init(struct nvkm_therm *therm)
+{
+ struct nvkm_device *device = therm->subdev.device;
+ struct dcb_gpio_func *tach = &therm->fan->tach;
+
+ g84_sensor_setup(therm);
+
+ /* enable fan tach, count revolutions per-second */
+ nvkm_mask(device, 0x00e720, 0x00000003, 0x00000002);
+ if (tach->func != DCB_GPIO_UNUSED) {
+ nvkm_wr32(device, 0x00e724, device->crystal * 1000);
+ nvkm_mask(device, 0x00e720, 0x001f0000, tach->line << 16);
+ nvkm_mask(device, 0x00e720, 0x00000001, 0x00000001);
+ }
+ nvkm_mask(device, 0x00e720, 0x00000002, 0x00000000);
+}
+
+static const struct nvkm_therm_func
+gt215_therm = {
+ .init = gt215_therm_init,
+ .fini = g84_therm_fini,
+ .pwm_ctrl = nv50_fan_pwm_ctrl,
+ .pwm_get = nv50_fan_pwm_get,
+ .pwm_set = nv50_fan_pwm_set,
+ .pwm_clock = nv50_fan_pwm_clock,
+ .temp_get = g84_temp_get,
+ .fan_sense = gt215_therm_fan_sense,
+ .program_alarms = nvkm_therm_program_alarms_polling,
+};
+
+int
+gt215_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_therm **ptherm)
+{
+ return nvkm_therm_new_(&gt215_therm, device, type, inst, ptherm);
+}