234eadd07e
This is an automatically generated commit which aids following Kernel patch history, as git will see the move and copy as a rename thus defeating the purpose. For the original discussion see: https://lists.openwrt.org/pipermail/openwrt-devel/2023-October/041673.html Signed-off-by: Thomas Richard <thomas.richard@bootlin.com> Link: https://github.com/openwrt/openwrt/pull/18740 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
32 lines
1.3 KiB
Diff
32 lines
1.3 KiB
Diff
From 3cd1d4651cebe9776a0142ade36ff9f2e3545436 Mon Sep 17 00:00:00 2001
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From: Christophe Roullier <christophe.roullier@foss.st.com>
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Date: Mon, 1 Jul 2024 08:48:37 +0200
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Subject: [PATCH] net: stmmac: dwmac-stm32: Add test to verify if ETHCK is used
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before checking clk rate
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When we want to use clock from RCC to clock Ethernet PHY (with ETHCK)
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we need to check if value of clock rate is authorized.
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If ETHCK is unused, the ETHCK frequency is 0Hz and validation fails.
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It makes no sense to validate unused ETHCK, so skip the validation.
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Fixes: 582ac134963e ("net: stmmac: dwmac-stm32: Separate out external clock rate validation")
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Signed-off-by: Christophe Roullier <christophe.roullier@foss.st.com>
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Reviewed-by: Marek Vasut <marex@denx.de>
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Tested-by: Mark Brown <broonie@kernel.org>
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Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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---
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drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
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+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
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@@ -195,6 +195,9 @@ static int stm32mp1_validate_ethck_rate(
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struct stm32_dwmac *dwmac = plat_dat->bsp_priv;
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const u32 clk_rate = clk_get_rate(dwmac->clk_eth_ck);
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+ if (!dwmac->enable_eth_ck)
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+ return 0;
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+
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switch (plat_dat->mac_interface) {
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case PHY_INTERFACE_MODE_MII:
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case PHY_INTERFACE_MODE_GMII:
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