[PATCH net-next 1/2] net: stmmac: provide stmmac_pltfr_find_clk()

[Russell King (Oracle)]

Provide a generic way to find a clock in the bulk data.

Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 11 +++++++++++
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index c73eff6a56b8..43c869f64c39 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -709,6 +709,17 @@ devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 #endif /* CONFIG_OF */
 EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt);
 
+struct clk *stmmac_pltfr_find_clk(struct plat_stmmacenet_data *plat_dat,
+				  const char *name)
+{
+	for (int i = 0; i < plat_dat->num_clks; i++)
+		if (strcmp(plat_dat->clks[i].id, name) == 0)
+			return plat_dat->clks[i].clk;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(stmmac_pltfr_find_clk);
+
 int stmmac_get_platform_resources(struct platform_device *pdev,
 				  struct stmmac_resources *stmmac_res)
 {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
index 72dc1a32e46d..6e6561e29d6e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
@@ -14,6 +14,9 @@
 struct plat_stmmacenet_data *
 devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac);
 
+struct clk *stmmac_pltfr_find_clk(struct plat_stmmacenet_data *plat_dat,
+				  const char *name);
+
 int stmmac_get_platform_resources(struct platform_device *pdev,
 				  struct stmmac_resources *stmmac_res);
 
-- 
2.30.2