korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-23 02:54:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/nouveau/bios/pll: initial support for BIT 'C' version 2

Browse Source 
Just enough to get at the PLL table.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2016-07-09 10:41:01 +10:00
parent 79bf9552e4
commit 32341039e0
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c
View File

@ -77,15 +77,17 @@ g84_pll_mapping[] = {
{}
};
static u16
static u32
pll_limits_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
{
struct bit_entry bit_C;
u16 data = 0x0000;
u32 data = 0x0000;
if (!bit_entry(bios, 'C', &bit_C)) {
if (bit_C.version == 1 && bit_C.length >= 10)
data = nvbios_rd16(bios, bit_C.offset + 8);
if (bit_C.version == 2 && bit_C.length >= 4)
data = nvbios_rd32(bios, bit_C.offset + 0);
if (data) {
*ver = nvbios_rd08(bios, data + 0);
*hdr = nvbios_rd08(bios, data + 1);
@ -137,12 +139,12 @@ pll_map(struct nvkm_bios *bios)
}
}
static u16
static u32
pll_map_reg(struct nvkm_bios *bios, u32 reg, u32 *type, u8 *ver, u8 *len)
{
struct pll_mapping *map;
u8 hdr, cnt;
u16 data;
u32 data;
data = pll_limits_table(bios, ver, &hdr, &cnt, len);
if (data && *ver >= 0x30) {
@ -160,7 +162,7 @@ pll_map_reg(struct nvkm_bios *bios, u32 reg, u32 *type, u8 *ver, u8 *len)
map = pll_map(bios);
while (map && map->reg) {
if (map->reg == reg && *ver >= 0x20) {
u16 addr = (data += hdr);
u32 addr = (data += hdr);
*type = map->type;
while (cnt--) {
if (nvbios_rd32(bios, data) == map->reg)
@ -179,12 +181,12 @@ pll_map_reg(struct nvkm_bios *bios, u32 reg, u32 *type, u8 *ver, u8 *len)
return 0x0000;
}
static u16
static u32
pll_map_type(struct nvkm_bios *bios, u8 type, u32 *reg, u8 *ver, u8 *len)
{
struct pll_mapping *map;
u8 hdr, cnt;
u16 data;
u32 data;
data = pll_limits_table(bios, ver, &hdr, &cnt, len);
if (data && *ver >= 0x30) {
@ -202,7 +204,7 @@ pll_map_type(struct nvkm_bios *bios, u8 type, u32 *reg, u8 *ver, u8 *len)
map = pll_map(bios);
while (map && map->reg) {
if (map->type == type && *ver >= 0x20) {
u16 addr = (data += hdr);
u32 addr = (data += hdr);
*reg = map->reg;
while (cnt--) {
if (nvbios_rd32(bios, data) == map->reg)
@ -228,7 +230,7 @@ nvbios_pll_parse(struct nvkm_bios *bios, u32 type, struct nvbios_pll *info)
struct nvkm_device *device = subdev->device;
u8 ver, len;
u32 reg = type;
u16 data;
u32 data;
if (type > PLL_MAX) {
reg = type;