diff options
| author | Dong Aisheng | 2018-08-31 12:45:53 +0800 |
|---|---|---|
| committer | Stephen Boyd | 2018-10-16 15:42:47 -0700 |
| commit | cfdc0411cf01aff7bb44a4edcbaa578ad363ab77 (patch) | |
| tree | 06c17881c18a278856b62f3f47535a0800ba2f41 /drivers/clk/clk-bulk.c | |
| parent | 5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff) | |
clk: bulk: add of_clk_bulk_get()
'clock-names' property is optional in DT, so of_clk_bulk_get() is
introduced here to handle this for DT users without 'clock-names'
specified. Later clk_bulk_get_all() will be implemented on top of
it and this API will be kept private until someone proves they need
it because they don't have a struct device pointer.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Russell King <linux@arm.linux.org.uk>
Reported-by: Shawn Guo <shawnguo@kernel.org>
Tested-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-bulk.c')
| -rw-r--r-- | drivers/clk/clk-bulk.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c index 6904ed6da504..4460ac52199f 100644 --- a/drivers/clk/clk-bulk.c +++ b/drivers/clk/clk-bulk.c @@ -19,6 +19,35 @@ #include <linux/clk.h> #include <linux/device.h> #include <linux/export.h> +#include <linux/of.h> + +static int __must_check of_clk_bulk_get(struct device_node *np, int num_clks, + struct clk_bulk_data *clks) +{ + int ret; + int i; + + for (i = 0; i < num_clks; i++) + clks[i].clk = NULL; + + for (i = 0; i < num_clks; i++) { + clks[i].clk = of_clk_get(np, i); + if (IS_ERR(clks[i].clk)) { + ret = PTR_ERR(clks[i].clk); + pr_err("%pOF: Failed to get clk index: %d ret: %d\n", + np, i, ret); + clks[i].clk = NULL; + goto err; + } + } + + return 0; + +err: + clk_bulk_put(i, clks); + + return ret; +} void clk_bulk_put(int num_clks, struct clk_bulk_data *clks) { |