clk: Allow clk_get_by_name() with NULL name
This allows devm_clock_get(dev, NULL) to work and get the first clock,
which is common in code ported from Linux.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20230122000252.53642-1-samuel@sholland.org
diff --git a/include/clk.h b/include/clk.h
index 138766b..d912852 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -167,7 +167,7 @@
* clk_get_by_name() - Get/request a clock by name.
* @dev: The client device.
* @name: The name of the clock to request, within the client's list of
- * clocks.
+ * clocks, or NULL to request the first clock in the list.
* @clk: A pointer to a clock struct to initialize.
*
* This looks up and requests a clock. The name is relative to the client
@@ -184,7 +184,7 @@
* clk_get_by_name_nodev - Get/request a clock by name without a device.
* @node: The client ofnode.
* @name: The name of the clock to request, within the client's list of
- * clocks.
+ * clocks, or NULL to request the first clock in the list.
* @clk: A pointer to a clock struct to initialize.
*
* Return: 0 if OK, or a negative error code.