diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c index 00641566f2e7..5ccce0b17bf3 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/clock/nvc0.c @@ -23,17 +23,46 @@ */ #include <subdev/clock.h> +#include <subdev/bios.h> +#include <subdev/bios/pll.h> + +#include "pll.h" struct nvc0_clock_priv { struct nouveau_clock base; }; -static void +static int nvc0_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq) { struct nvc0_clock_priv *priv = (void *)clk; + struct nouveau_bios *bios = nouveau_bios(priv); + struct nvbios_pll info; + int N, fN, M, P; + int ret; + + ret = nvbios_pll_parse(bios, type, &info); + if (ret) + return ret; + + ret = nva3_pll_calc(clk, &info, freq, &N, &fN, &M, &P); + if (ret < 0) + return ret; + + switch (info.type) { + case PLL_VPLL0: + case PLL_VPLL1: + nv_mask(priv, info.reg + 0x0c, 0x00000000, 0x00000100); + nv_wr32(priv, info.reg + 0x04, (P << 16) | (N << 8) | M); + nv_wr32(priv, info.reg + 0x10, fN << 16); + break; + default: + nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); + ret = -EINVAL; + break; + } - nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); + return ret; } static int |