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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c57
1 files changed, 27 insertions, 30 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
index fd56c6476064..d554455326da 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/gk20a.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -24,21 +24,9 @@
#include <core/tegra.h>
-struct cvb_coef {
- int c0;
- int c1;
- int c2;
- int c3;
- int c4;
- int c5;
-};
-
-struct gk20a_volt {
- struct nvkm_volt base;
- struct regulator *vdd;
-};
+#include "gk20a.h"
-const struct cvb_coef gk20a_cvb_coef[] = {
+static const struct cvb_coef gk20a_cvb_coef[] = {
/* MHz, c0, c1, c2, c3, c4, c5 */
/* 72 */ { 1209886, -36468, 515, 417, -13123, 203},
/* 108 */ { 1130804, -27659, 296, 298, -10834, 221},
@@ -89,7 +77,7 @@ gk20a_volt_get_cvb_t_voltage(int speedo, int temp, int s_scale, int t_scale,
return mv;
}
-static int
+int
gk20a_volt_calc_voltage(const struct cvb_coef *coef, int speedo)
{
int mv;
@@ -100,7 +88,7 @@ gk20a_volt_calc_voltage(const struct cvb_coef *coef, int speedo)
return mv * 1000;
}
-static int
+int
gk20a_volt_vid_get(struct nvkm_volt *base)
{
struct gk20a_volt *volt = gk20a_volt(base);
@@ -115,7 +103,7 @@ gk20a_volt_vid_get(struct nvkm_volt *base)
return -EINVAL;
}
-static int
+int
gk20a_volt_vid_set(struct nvkm_volt *base, u8 vid)
{
struct gk20a_volt *volt = gk20a_volt(base);
@@ -125,7 +113,7 @@ gk20a_volt_vid_set(struct nvkm_volt *base, u8 vid)
return regulator_set_voltage(volt->vdd, volt->base.vid[vid].uv, 1200000);
}
-static int
+int
gk20a_volt_set_id(struct nvkm_volt *base, u8 id, int condition)
{
struct gk20a_volt *volt = gk20a_volt(base);
@@ -155,30 +143,25 @@ gk20a_volt = {
};
int
-gk20a_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
+_gk20a_volt_ctor(struct nvkm_device *device, int index,
+ const struct cvb_coef *coefs, int nb_coefs,
+ struct gk20a_volt *volt)
{
struct nvkm_device_tegra *tdev = device->func->tegra(device);
- struct gk20a_volt *volt;
int i, uv;
- if (!(volt = kzalloc(sizeof(*volt), GFP_KERNEL)))
- return -ENOMEM;
-
nvkm_volt_ctor(&gk20a_volt, device, index, &volt->base);
- *pvolt = &volt->base;
uv = regulator_get_voltage(tdev->vdd);
- nvkm_info(&volt->base.subdev, "The default voltage is %duV\n", uv);
+ nvkm_debug(&volt->base.subdev, "the default voltage is %duV\n", uv);
volt->vdd = tdev->vdd;
- volt->base.vid_nr = ARRAY_SIZE(gk20a_cvb_coef);
- nvkm_debug(&volt->base.subdev, "%s - vid_nr = %d\n", __func__,
- volt->base.vid_nr);
+ volt->base.vid_nr = nb_coefs;
for (i = 0; i < volt->base.vid_nr; i++) {
volt->base.vid[i].vid = i;
volt->base.vid[i].uv =
- gk20a_volt_calc_voltage(&gk20a_cvb_coef[i],
+ gk20a_volt_calc_voltage(&coefs[i],
tdev->gpu_speedo);
nvkm_debug(&volt->base.subdev, "%2d: vid=%d, uv=%d\n", i,
volt->base.vid[i].vid, volt->base.vid[i].uv);
@@ -186,3 +169,17 @@ gk20a_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
return 0;
}
+
+int
+gk20a_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
+{
+ struct gk20a_volt *volt;
+
+ volt = kzalloc(sizeof(*volt), GFP_KERNEL);
+ if (!volt)
+ return -ENOMEM;
+ *pvolt = &volt->base;
+
+ return _gk20a_volt_ctor(device, index, gk20a_cvb_coef,
+ ARRAY_SIZE(gk20a_cvb_coef), volt);
+}