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Message-ID: <1417495835-5556-2-git-send-email-vinceh@nvidia.com>
Date: Tue, 2 Dec 2014 12:50:33 +0800
From: Vince Hsu <vinceh@...dia.com>
To: <swarren@...dotorg.org>, <thierry.reding@...il.com>,
<gnurou@...il.com>, <pdeschrijver@...dia.com>,
<bskeggs@...hat.com>, <martin.peres@...e.fr>,
<seven@...rod-online.com>, <tbergstrom@...dia.com>
CC: <nouveau@...ts.freedesktop.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Vince Hsu <vinceh@...dia.com>
Subject: [V3 PATCH nouveau 2/4] volt: allow non-bios voltage scaling
Move the vbios parsing out of init() and call it conditionally if the
platform has a vbios. Non-vbios platforms can use the ctor() to init the
data structures.
Signed-off-by: Vince Hsu <vinceh@...dia.com>
Acked-by: Alexandre Courbot <acourbot@...dia.com>
Acked-by: Martin Peres <martin.peres@...e.fr>
---
v3: steal Martin's commit message and add his Acked-by
v2: add Alex's Acked-by
nvkm/subdev/volt/base.c | 67 ++++++++++++++++++++++++++++---------------------
1 file changed, 38 insertions(+), 29 deletions(-)
diff --git a/nvkm/subdev/volt/base.c b/nvkm/subdev/volt/base.c
index 32794a999106..26ccd8df193f 100644
--- a/nvkm/subdev/volt/base.c
+++ b/nvkm/subdev/volt/base.c
@@ -101,6 +101,41 @@ nouveau_volt_set_id(struct nouveau_volt *volt, u8 id, int condition)
return ret;
}
+static void nouveau_volt_parse_bios(struct nouveau_bios *bios,
+ struct nouveau_volt *volt)
+{
+ struct nvbios_volt_entry ivid;
+ struct nvbios_volt info;
+ u8 ver, hdr, cnt, len;
+ u16 data;
+ int i;
+
+ data = nvbios_volt_parse(bios, &ver, &hdr, &cnt, &len, &info);
+ if (data && info.vidmask && info.base && info.step) {
+ for (i = 0; i < info.vidmask + 1; i++) {
+ if (info.base >= info.min &&
+ info.base <= info.max) {
+ volt->vid[volt->vid_nr].uv = info.base;
+ volt->vid[volt->vid_nr].vid = i;
+ volt->vid_nr++;
+ }
+ info.base += info.step;
+ }
+ volt->vid_mask = info.vidmask;
+ } else if (data && info.vidmask) {
+ for (i = 0; i < cnt; i++) {
+ data = nvbios_volt_entry_parse(bios, i, &ver, &hdr,
+ &ivid);
+ if (data) {
+ volt->vid[volt->vid_nr].uv = ivid.voltage;
+ volt->vid[volt->vid_nr].vid = ivid.vid;
+ volt->vid_nr++;
+ }
+ }
+ volt->vid_mask = info.vidmask;
+ }
+}
+
int
_nouveau_volt_init(struct nouveau_object *object)
{
@@ -136,10 +171,6 @@ nouveau_volt_create_(struct nouveau_object *parent,
{
struct nouveau_bios *bios = nouveau_bios(parent);
struct nouveau_volt *volt;
- struct nvbios_volt_entry ivid;
- struct nvbios_volt info;
- u8 ver, hdr, cnt, len;
- u16 data;
int ret, i;
ret = nouveau_subdev_create_(parent, engine, oclass, 0, "VOLT",
@@ -152,31 +183,9 @@ nouveau_volt_create_(struct nouveau_object *parent,
volt->set = nouveau_volt_set;
volt->set_id = nouveau_volt_set_id;
- data = nvbios_volt_parse(bios, &ver, &hdr, &cnt, &len, &info);
- if (data && info.vidmask && info.base && info.step) {
- for (i = 0; i < info.vidmask + 1; i++) {
- if (info.base >= info.min &&
- info.base <= info.max) {
- volt->vid[volt->vid_nr].uv = info.base;
- volt->vid[volt->vid_nr].vid = i;
- volt->vid_nr++;
- }
- info.base += info.step;
- }
- volt->vid_mask = info.vidmask;
- } else
- if (data && info.vidmask) {
- for (i = 0; i < cnt; i++) {
- data = nvbios_volt_entry_parse(bios, i, &ver, &hdr,
- &ivid);
- if (data) {
- volt->vid[volt->vid_nr].uv = ivid.voltage;
- volt->vid[volt->vid_nr].vid = ivid.vid;
- volt->vid_nr++;
- }
- }
- volt->vid_mask = info.vidmask;
- }
+ /* Assuming the non-bios device should build the voltage table later */
+ if (bios)
+ nouveau_volt_parse_bios(bios, volt);
if (volt->vid_nr) {
for (i = 0; i < volt->vid_nr; i++) {
--
1.9.1
--
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