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clk: add managed version of clk_bulk_get
This patch introduces the managed version of clk_bulk_get. Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Mark Brown <broonie@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Anson Huang <anson.huang@nxp.com> Cc: Robin Gong <yibin.gong@nxp.com> Cc: Bai Ping <ping.bai@nxp.com> Cc: Leonard Crestez <leonard.crestez@nxp.com> Cc: Octavian Purdila <octavian.purdila@nxp.com> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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@ -34,6 +34,42 @@ struct clk *devm_clk_get(struct device *dev, const char *id)
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}
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EXPORT_SYMBOL(devm_clk_get);
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struct clk_bulk_devres {
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struct clk_bulk_data *clks;
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int num_clks;
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};
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static void devm_clk_bulk_release(struct device *dev, void *res)
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{
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struct clk_bulk_devres *devres = res;
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clk_bulk_put(devres->num_clks, devres->clks);
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}
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int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,
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struct clk_bulk_data *clks)
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{
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struct clk_bulk_devres *devres;
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int ret;
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devres = devres_alloc(devm_clk_bulk_release,
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sizeof(*devres), GFP_KERNEL);
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if (!devres)
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return -ENOMEM;
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ret = clk_bulk_get(dev, num_clks, clks);
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if (!ret) {
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devres->clks = clks;
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devres->num_clks = num_clks;
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devres_add(dev, devres);
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} else {
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devres_free(devres);
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}
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return ret;
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}
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EXPORT_SYMBOL_GPL(devm_clk_bulk_get);
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static int devm_clk_match(struct device *dev, void *res, void *data)
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{
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struct clk **c = res;
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@ -280,6 +280,21 @@ struct clk *clk_get(struct device *dev, const char *id);
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int __must_check clk_bulk_get(struct device *dev, int num_clks,
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struct clk_bulk_data *clks);
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/**
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* devm_clk_bulk_get - managed get multiple clk consumers
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* @dev: device for clock "consumer"
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* @num_clks: the number of clk_bulk_data
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* @clks: the clk_bulk_data table of consumer
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*
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* Return 0 on success, an errno on failure.
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*
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* This helper function allows drivers to get several clk
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* consumers in one operation with management, the clks will
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* automatically be freed when the device is unbound.
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*/
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int __must_check devm_clk_bulk_get(struct device *dev, int num_clks,
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struct clk_bulk_data *clks);
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/**
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* devm_clk_get - lookup and obtain a managed reference to a clock producer.
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* @dev: device for clock "consumer"
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@ -550,6 +565,12 @@ static inline struct clk *devm_clk_get(struct device *dev, const char *id)
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return NULL;
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}
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static inline int devm_clk_bulk_get(struct device *dev, int num_clks,
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struct clk_bulk_data *clks)
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{
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return 0;
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}
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static inline struct clk *devm_get_clk_from_child(struct device *dev,
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struct device_node *np, const char *con_id)
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{
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