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authorThierry Reding <thierry.reding@gmail.com>2013-11-27 16:26:03 (GMT)
committerPeter De Schrijver <pdeschrijver@nvidia.com>2013-11-28 12:54:43 (GMT)
commit8ba4b3b9cc3d95714b31467614205fc26b91fb7c (patch)
tree4fdd5ff7f1a8b499adde5d233a32d3d5718dbb29
parent39409aa4244f22eae3fa8f8db4b0cf9466b73c44 (diff)
downloadlinux-8ba4b3b9cc3d95714b31467614205fc26b91fb7c.tar.xz
clk: tegra: Do not print errors for clk_round_rate()
clk_round_rate() can be used by drivers to determine whether or not a frequency is supported by the clock. The current Tegra clock driver outputs an error message and a stacktrace when the requested rate isn't supported. That's fine for clk_set_rate(), but it's confusing when all the driver does is query whether or not a frequency is supported. Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r--drivers/clk/tegra/clk-pll.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 689c468..8eb2755 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -435,9 +435,6 @@ static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
if (cfg->m > divm_max(pll) || cfg->n > divn_max(pll) ||
(1 << p_div) > divp_max(pll)
|| cfg->output_rate > pll->params->vco_max) {
- pr_err("%s: Failed to set %s rate %lu\n",
- __func__, __clk_get_name(hw->clk), rate);
- WARN_ON(1);
return -EINVAL;
}
@@ -584,6 +581,8 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
if (_get_table_rate(hw, &cfg, rate, parent_rate) &&
_calc_rate(hw, &cfg, rate, parent_rate)) {
+ pr_err("%s: Failed to set %s rate %lu\n", __func__,
+ __clk_get_name(hw->clk), rate);
WARN_ON(1);
return -EINVAL;
}
@@ -615,10 +614,8 @@ static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
return __clk_get_rate(hw->clk);
if (_get_table_rate(hw, &cfg, rate, *prate) &&
- _calc_rate(hw, &cfg, rate, *prate)) {
- WARN_ON(1);
+ _calc_rate(hw, &cfg, rate, *prate))
return -EINVAL;
- }
return cfg.output_rate;
}