clk: ti: dra7-atl-clock: fix child-node lookups

[ Upstream commit 33ec6dbc5a02677509d97fe36cd2105753f0f0ea ]

Fix child node-lookup during probe, which ended up searching the whole
device tree depth-first starting at parent rather than just matching on
its children.

Note that the original premature free of the parent node has already
been fixed separately, but that fix was apparently never backported to
stable.

Fixes: 9ac33b0ce81f ("CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)")
Fixes: 660e15519399 ("clk: ti: dra7-atl-clock: Fix of_node reference counting")
Cc: stable <stable@vger.kernel.org>     # 3.16: 660e15519399
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>

diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c
index 9f27146d2872f80fb822e59cd2226cb6f6faf53c..6fe6e08479e6dd8119aad5dfa4e14358425f4b51 100644 (file)
--- a/drivers/clk/ti/clk-dra7-atl.c
+++ b/drivers/clk/ti/clk-dra7-atl.c
@@ -264,8 +264,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
 
                /* Get configuration for the ATL instances */
                snprintf(prop, sizeof(prop), "atl%u", i);
-               of_node_get(node);
-               cfg_node = of_find_node_by_name(node, prop);
+               cfg_node = of_get_child_by_name(node, prop);
                if (cfg_node) {
                        ret = of_property_read_u32(cfg_node, "bws",
                                                   &cdesc->bws);