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authorPeter De Schrijver <pdeschrijver@nvidia.com>2017-02-23 12:44:42 +0200
committerThierry Reding <treding@nvidia.com>2017-03-20 14:05:35 +0100
commit8dce89a1c2cf458875e0a703f3671bdb72b54c53 (patch)
tree0b4099a5d87742835b4e11249ccb8bcc95927f5d /drivers/clk/tegra
parent8809eeac21c4fc8c964a4bbcda53c7228ad23370 (diff)
downloadblackbird-op-linux-8dce89a1c2cf458875e0a703f3671bdb72b54c53.tar.gz
blackbird-op-linux-8dce89a1c2cf458875e0a703f3671bdb72b54c53.zip
clk: tegra: Don't warn for PLL defaults unnecessarily
If the PLL is on, only warn if the defaults are not yet set. Otherwise be silent. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Tested-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra')
-rw-r--r--drivers/clk/tegra/clk-tegra210.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index b7ef8a78eeb0..fe698d2f9004 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -502,7 +502,7 @@ static void tegra210_pllcx_set_defaults(const char *name,
pllcx->params->defaults_set = true;
if (readl_relaxed(clk_base + pllcx->params->base_reg) &
- PLL_ENABLE) {
+ PLL_ENABLE && !pllcx->params->defaults_set) {
/* PLL is ON: only check if defaults already set */
pllcx_check_defaults(pllcx->params);
pr_warn("%s already enabled. Postponing set full defaults\n",
@@ -608,7 +608,6 @@ static void tegra210_plld_set_defaults(struct tegra_clk_pll *plld)
if (readl_relaxed(clk_base + plld->params->base_reg) &
PLL_ENABLE) {
- pr_warn("PLL_D already enabled. Postponing set full defaults\n");
/*
* PLL is ON: check if defaults already set, then set those
@@ -625,6 +624,9 @@ static void tegra210_plld_set_defaults(struct tegra_clk_pll *plld)
_pll_misc_chk_default(clk_base, plld->params, 0, val,
~mask & PLLD_MISC0_WRITE_MASK);
+ if (!plld->params->defaults_set)
+ pr_warn("PLL_D already enabled. Postponing set full defaults\n");
+
/* Enable lock detect */
mask = PLLD_MISC0_LOCK_ENABLE | PLLD_MISC0_LOCK_OVERRIDE;
val = readl_relaxed(clk_base + plld->params->ext_misc_reg[0]);
@@ -896,7 +898,6 @@ static void tegra210_pllx_set_defaults(struct tegra_clk_pll *pllx)
val |= step_b << PLLX_MISC2_DYNRAMP_STEPB_SHIFT;
if (readl_relaxed(clk_base + pllx->params->base_reg) & PLL_ENABLE) {
- pr_warn("PLL_X already enabled. Postponing set full defaults\n");
/*
* PLL is ON: check if defaults already set, then set those
@@ -904,6 +905,8 @@ static void tegra210_pllx_set_defaults(struct tegra_clk_pll *pllx)
*/
pllx_check_defaults(pllx);
+ if (!pllx->params->defaults_set)
+ pr_warn("PLL_X already enabled. Postponing set full defaults\n");
/* Configure dyn ramp, disable lock override */
writel_relaxed(val, clk_base + pllx->params->ext_misc_reg[2]);
@@ -948,7 +951,6 @@ static void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
pllmb->params->defaults_set = true;
if (val & PLL_ENABLE) {
- pr_warn("PLL_MB already enabled. Postponing set full defaults\n");
/*
* PLL is ON: check if defaults already set, then set those
@@ -959,6 +961,8 @@ static void tegra210_pllmb_set_defaults(struct tegra_clk_pll *pllmb)
_pll_misc_chk_default(clk_base, pllmb->params, 0, val,
~mask & PLLMB_MISC1_WRITE_MASK);
+ if (!pllmb->params->defaults_set)
+ pr_warn("PLL_MB already enabled. Postponing set full defaults\n");
/* Enable lock detect */
val = readl_relaxed(clk_base + pllmb->params->ext_misc_reg[0]);
val &= ~mask;
@@ -1008,13 +1012,14 @@ static void tegra210_pllp_set_defaults(struct tegra_clk_pll *pllp)
pllp->params->defaults_set = true;
if (val & PLL_ENABLE) {
- pr_warn("PLL_P already enabled. Postponing set full defaults\n");
/*
* PLL is ON: check if defaults already set, then set those
* that can be updated in flight.
*/
pllp_check_defaults(pllp, true);
+ if (!pllp->params->defaults_set)
+ pr_warn("PLL_P already enabled. Postponing set full defaults\n");
/* Enable lock detect */
val = readl_relaxed(clk_base + pllp->params->ext_misc_reg[0]);
@@ -1069,13 +1074,14 @@ static void tegra210_pllu_set_defaults(struct tegra_clk_pll *pllu)
pllu->params->defaults_set = true;
if (val & PLL_ENABLE) {
- pr_warn("PLL_U already enabled. Postponing set full defaults\n");
/*
* PLL is ON: check if defaults already set, then set those
* that can be updated in flight.
*/
pllu_check_defaults(pllu, false);
+ if (!pllu->params->defaults_set)
+ pr_warn("PLL_U already enabled. Postponing set full defaults\n");
/* Enable lock detect */
val = readl_relaxed(clk_base + pllu->params->ext_misc_reg[0]);
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