net: stmmac: provide stmmac_pltfr_find_clk()

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

Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1u2QO4-001Rp2-Dy@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index c73eff6a56b87a3783c91b2ffbf5807a27df303f..43c869f64c39c6366d504de3f0ca0aa060c8a1c4 100644 (file)
--- 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 72dc1a32e46d5ef2c9691f98bb33b59c5156b1b3..6e6561e29d6e3b823a4ab096a6e7760102bc9944 100644 (file)
--- 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);