net/stmmac: Use clk_prepare_enable and clk_disable_unprepare
This patch fixes an issue introduced by commit ID 6a81c26f
[net/stmmac: remove conditional compilation of clk code], which
switched from the internal stmmac_clk_{en}{dis}able calls to
clk_{en}{dis}able. By this, calling clk_prepare and clk_unprepare
was removed.
clk_{un}prepare is mandatory for platforms using common clock framework.
Since these drivers are used by SPEAr platform, which supports common
clock framework, add clk_{un}prepare() support for them. Otherwise
the clocks are not correctly en-/disabled and ethernet support doesn't
work.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Родитель
bf5b30b8a4
Коммит
a630844d89
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@ -1066,7 +1066,7 @@ static int stmmac_open(struct net_device *dev)
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} else
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priv->tm->enable = 1;
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#endif
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clk_enable(priv->stmmac_clk);
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clk_prepare_enable(priv->stmmac_clk);
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stmmac_check_ether_addr(priv);
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@ -1188,7 +1188,7 @@ open_error:
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if (priv->phydev)
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phy_disconnect(priv->phydev);
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clk_disable(priv->stmmac_clk);
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clk_disable_unprepare(priv->stmmac_clk);
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return ret;
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}
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@ -1246,7 +1246,7 @@ static int stmmac_release(struct net_device *dev)
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#ifdef CONFIG_STMMAC_DEBUG_FS
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stmmac_exit_fs();
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#endif
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clk_disable(priv->stmmac_clk);
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clk_disable_unprepare(priv->stmmac_clk);
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return 0;
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}
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@ -2178,7 +2178,7 @@ int stmmac_suspend(struct net_device *ndev)
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else {
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stmmac_set_mac(priv->ioaddr, false);
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/* Disable clock in case of PWM is off */
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clk_disable(priv->stmmac_clk);
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clk_disable_unprepare(priv->stmmac_clk);
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}
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spin_unlock_irqrestore(&priv->lock, flags);
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return 0;
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@ -2203,7 +2203,7 @@ int stmmac_resume(struct net_device *ndev)
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priv->hw->mac->pmt(priv->ioaddr, 0);
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else
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/* enable the clk prevously disabled */
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clk_enable(priv->stmmac_clk);
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clk_prepare_enable(priv->stmmac_clk);
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netif_device_attach(ndev);
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@ -97,12 +97,12 @@ static struct clk *timer_clock;
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static void stmmac_tmu_start(unsigned int new_freq)
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{
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clk_set_rate(timer_clock, new_freq);
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clk_enable(timer_clock);
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clk_prepare_enable(timer_clock);
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}
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static void stmmac_tmu_stop(void)
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{
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clk_disable(timer_clock);
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clk_disable_unprepare(timer_clock);
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}
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int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
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@ -126,7 +126,7 @@ int stmmac_open_ext_timer(struct net_device *dev, struct stmmac_timer *tm)
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int stmmac_close_ext_timer(void)
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{
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clk_disable(timer_clock);
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clk_disable_unprepare(timer_clock);
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tmu2_unregister_user();
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clk_put(timer_clock);
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return 0;
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