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authorAlexandre Courbot <acourbot@nvidia.com>2016-02-12 14:07:07 +0900
committerAlexandre Courbot <acourbot@nvidia.com>2016-03-12 11:02:07 +0900
commit8abb35e08a4c0e83dc302caf23f39fabffe28298 (patch)
tree7e6e51c1340b7bff791593dcf39fa25cbc576ed0
parentb95a749cdb38b4a68798cf8866c7b9b49917a46d (diff)
downloadnouveau-8abb35e08a4c0e83dc302caf23f39fabffe28298.tar.gz
clk/gk20a: rename enable/disable functions
gk20a_pllg_disable() is only used in the context of gk20a_clk_fini(). Move its body there and rename _gk20a_pllg_enable() and _gk20a_pllg_disable() to non-underscored versions. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
-rw-r--r--drm/nouveau/nvkm/subdev/clk/gk20a.c52
1 files changed, 24 insertions, 28 deletions
diff --git a/drm/nouveau/nvkm/subdev/clk/gk20a.c b/drm/nouveau/nvkm/subdev/clk/gk20a.c
index 0c2b07891..b5a92f766 100644
--- a/drm/nouveau/nvkm/subdev/clk/gk20a.c
+++ b/drm/nouveau/nvkm/subdev/clk/gk20a.c
@@ -329,17 +329,19 @@ gk20a_pllg_slide(struct gk20a_clk *clk, u32 n)
}
static void
-_gk20a_pllg_enable(struct gk20a_clk *clk)
+gk20a_pllg_enable(struct gk20a_clk *clk)
{
struct nvkm_device *device = clk->base.subdev.device;
+
nvkm_mask(device, GPCPLL_CFG, GPCPLL_CFG_ENABLE, GPCPLL_CFG_ENABLE);
nvkm_rd32(device, GPCPLL_CFG);
}
static void
-_gk20a_pllg_disable(struct gk20a_clk *clk)
+gk20a_pllg_disable(struct gk20a_clk *clk)
{
struct nvkm_device *device = clk->base.subdev.device;
+
nvkm_mask(device, GPCPLL_CFG, GPCPLL_CFG_ENABLE, 0);
nvkm_rd32(device, GPCPLL_CFG);
}
@@ -393,7 +395,7 @@ _gk20a_pllg_program_mnp(struct gk20a_clk *clk, bool allow_slide)
udelay(2);
}
- _gk20a_pllg_disable(clk);
+ gk20a_pllg_disable(clk);
nvkm_debug(subdev, "%s: m=%d n=%d pl=%d\n", __func__,
clk->m, clk->n, clk->pl);
@@ -405,7 +407,7 @@ _gk20a_pllg_program_mnp(struct gk20a_clk *clk, bool allow_slide)
val |= clk->pl << GPCPLL_COEFF_P_SHIFT;
nvkm_wr32(device, GPCPLL_COEFF, val);
- _gk20a_pllg_enable(clk);
+ gk20a_pllg_enable(clk);
val = nvkm_rd32(device, GPCPLL_CFG);
if (val & GPCPLL_CFG_LOCK_DET_OFF) {
@@ -444,30 +446,6 @@ gk20a_pllg_program_mnp(struct gk20a_clk *clk)
return err;
}
-static void
-gk20a_pllg_disable(struct gk20a_clk *clk)
-{
- struct nvkm_device *device = clk->base.subdev.device;
- u32 val;
-
- /* slide to VCO min */
- val = nvkm_rd32(device, GPCPLL_CFG);
- if (val & GPCPLL_CFG_ENABLE) {
- u32 coeff, m, n_lo;
-
- coeff = nvkm_rd32(device, GPCPLL_COEFF);
- m = (coeff >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
- n_lo = DIV_ROUND_UP(m * clk->params->min_vco,
- clk->parent_rate / KHZ);
- gk20a_pllg_slide(clk, n_lo);
- }
-
- /* put PLL in bypass before disabling it */
- nvkm_mask(device, SEL_VCO, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT), 0);
-
- _gk20a_pllg_disable(clk);
-}
-
#define GK20A_CLK_GPC_MDIV 1000
static struct nvkm_pstate
@@ -608,7 +586,25 @@ gk20a_clk_tidy(struct nvkm_clk *base)
static void
gk20a_clk_fini(struct nvkm_clk *base)
{
+ struct nvkm_device *device = base->subdev.device;
struct gk20a_clk *clk = gk20a_clk(base);
+ u32 val;
+
+ /* slide to VCO min */
+ val = nvkm_rd32(device, GPCPLL_CFG);
+ if (val & GPCPLL_CFG_ENABLE) {
+ u32 coef, m, n_lo;
+
+ coef = nvkm_rd32(device, GPCPLL_COEFF);
+ m = (coef >> GPCPLL_COEFF_M_SHIFT) & MASK(GPCPLL_COEFF_M_WIDTH);
+ n_lo = DIV_ROUND_UP(m * clk->params->min_vco,
+ clk->parent_rate / KHZ);
+ gk20a_pllg_slide(clk, n_lo);
+ }
+
+ /* put PLL in bypass before disabling it */
+ nvkm_mask(device, SEL_VCO, BIT(SEL_VCO_GPC2CLK_OUT_SHIFT), 0);
+
gk20a_pllg_disable(clk);
}