[PATCH v7 4/4] net: stmmac: add a parse for new property 'snps,clk-csr'

From: Jianguo Zhang
Date: Wed Sep 28 2022 - 21:48:33 EST


Parse new property 'snps,clk-csr' firstly because the new property
is documented in binding file, if failed, fall back to old property
'clk_csr' for legacy case

Signed-off-by: Jianguo Zhang <jianguo.zhang@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 9f5cac4000da..3db6cb0b6124 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -444,7 +444,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
* or get clk_csr from device tree.
*/
plat->clk_csr = -1;
- of_property_read_u32(np, "clk_csr", &plat->clk_csr);
+ if (of_property_read_u32(np, "snps,clk-csr", &plat->clk_csr))
+ of_property_read_u32(np, "clk_csr", &plat->clk_csr);

/* "snps,phy-addr" is not a standard property. Mark it as deprecated
* and warn of its use. Remove this when phy node support is added.
--
2.25.1