diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2010-04-07 04:05:32 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-04-09 02:15:45 +0200 |
| commit | 02faec09b2814b6ad3fd202e2f28b3c4b712a3f1 (patch) | |
| tree | 90feb8737a8d9d95a52ef964f6b3fa4406e20797 /drivers | |
| parent | drm/nouveau: store raw gpio table entry in bios gpio structs (diff) | |
| download | linux-02faec09b2814b6ad3fd202e2f28b3c4b712a3f1.tar.xz linux-02faec09b2814b6ad3fd202e2f28b3c4b712a3f1.zip | |
drm/nv50: parse/use some more de-magiced parts of gpio table entries
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 23 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.h | 2 |
2 files changed, 11 insertions, 14 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 84b03e0a3865..70a51fc2323e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -2595,10 +2595,7 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec) r = nv50_gpio_reg[gpio->line >> 3]; s = (gpio->line & 0x07) << 2; v = bios_rd32(bios, r) & ~(0x00000003 << s); - if (gpio->entry & 0x01000000) - v |= (((gpio->entry & 0x60000000) >> 29) ^ 2) << s; - else - v |= (((gpio->entry & 0x18000000) >> 27) ^ 2) << s; + v |= (gpio->state[gpio->state_default] ^ 2) << s; bios_wr32(bios, r, v); r = nv50_gpio_ctl[gpio->line >> 4]; @@ -5078,21 +5075,19 @@ parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset) static void parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset) { + uint32_t entry = ROM32(bios->data[offset]); struct dcb_gpio_entry *gpio; - uint32_t ent = ROM32(bios->data[offset]); - uint8_t line = ent & 0x1f, - tag = ent >> 8 & 0xff; - if (tag == 0xff) + if ((entry & 0x0000ff00) == 0x0000ff00) return; gpio = new_gpio_entry(bios); - - /* Currently unused, we may need more fields parsed at some - * point. */ - gpio->tag = tag; - gpio->line = line; - gpio->entry = ent; + gpio->tag = (entry & 0x0000ff00) >> 8; + gpio->line = (entry & 0x0000001f) >> 0; + gpio->state_default = (entry & 0x01000000) >> 24; + gpio->state[0] = (entry & 0x18000000) >> 27; + gpio->state[1] = (entry & 0x60000000) >> 29; + gpio->entry = entry; } static void diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h index 3706493c014d..c0d7b0a3ece0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.h +++ b/drivers/gpu/drm/nouveau/nouveau_bios.h @@ -50,6 +50,8 @@ struct dcb_gpio_entry { int line; bool invert; uint32_t entry; + uint8_t state_default; + uint8_t state[2]; }; struct dcb_gpio_table { |