From patchwork Mon Feb 24 14:47:19 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 13988332 X-Patchwork-Delegate: kuba@kernel.org Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7EB025A2CA for ; Mon, 24 Feb 2025 14:47:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740408467; cv=none; b=ATVfEYXTrHM9TGKw9bjmMDclhK2gI2KYQYPnUrmYraY6yc1mkYZ0/SEUW/1fWuctsRKizw0f+1DEAiFkaOp2aI4Tytjb96bFyUCdL5Pga1nxz+6PMn4KMbS2HkHaSo1TLc0O0owTqbZMQVibEiwJtNGdFVPEF92cb/LNLnKZSuQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740408467; c=relaxed/simple; bh=02jVUB/NWaZHPuhxFVPWB7JEfOA9g28RdzOVcYiyxSg=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=qFYUFoiQeNa2ytGiGFP7K/T2sLCdrs3Tq3xqeWOpGxYO3xh1eOUxepLxAO/Up0v6E4IFArW8mvhBwb+GIlTm0Y92frKPqP8PplUcsB9UagHIkttzNf2puvUDAHgDXQMpsEWaGohLzsu8mm/9FF7gmwuoc8OzIXg//TEiYQi3U7E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=L4pIOE0+; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="L4pIOE0+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=7bkdFPh3F/SxPMUGrcqB5tVaUarkJGs2j9EyjS5IwjQ=; b=L4pIOE0+EY9VmZjKw7eYs64Nce Ecr1xR1rz8Myfd5siPDTFzvdVWkqR0H2vtGYV2N8JLdJovxM2XSp9podWNjSntBn4Zix33neV3e8W YoHZCsZTslaHmf2cX75HPweusGxmMXzdjCEscCdJIa3KTDnwFYEvx7gv+ODyBVcoU4Rrli3hzRnAq 0nzD08nnpjIsPmKpsPR65dDmi83/nLCczvE/wqIFCl6HPtqxL25Rwza7WERR6G7a8jmmNgT/gCR/S CNLYIaoMEBaX7L1zwD9vTiTXM4GUGmZWl2nZ9EtobUbh9eMVJBBAIORfV9djGeM+7+3zqTIu1FgNZ YUxEEpRw==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:42816 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tmZkB-0006fx-0R; Mon, 24 Feb 2025 14:47:39 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1tmZjr-004uJP-82; Mon, 24 Feb 2025 14:47:19 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Alexandre Torgue , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, Maxime Coquelin , netdev@vger.kernel.org, Paolo Abeni Subject: [PATCH net-next 2/2] net: stmmac: dwc-qos: clean up clock initialisation Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Mon, 24 Feb 2025 14:47:19 +0000 X-Patchwork-Delegate: kuba@kernel.org Clean up the clock initialisation by providing a helper to find a named clock in the bulk clocks, and provide the name of the stmmac clock in match data so we can locate the stmmac clock in generic code. Signed-off-by: Russell King (Oracle) --- .../stmicro/stmmac/dwmac-dwc-qos-eth.c | 32 +++++++++++-------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c index acb0a2e1664f..45021dfaa787 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c @@ -35,6 +35,16 @@ struct tegra_eqos { struct gpio_desc *reset; }; +static struct clk *dwc_eth_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 0; +} + static int dwc_eth_dwmac_config_dt(struct platform_device *pdev, struct plat_stmmacenet_data *plat_dat) { @@ -121,12 +131,7 @@ static int dwc_qos_probe(struct platform_device *pdev, struct plat_stmmacenet_data *plat_dat, struct stmmac_resources *stmmac_res) { - for (int i = 0; i < plat_dat->num_clks; i++) { - if (strcmp(plat_dat->clks[i].id, "apb_pclk") == 0) - plat_dat->stmmac_clk = plat_dat->clks[i].clk; - else if (strcmp(plat_dat->clks[i].id, "phy_ref_clk") == 0) - plat_dat->pclk = plat_dat->clks[i].clk; - } + plat_dat->pclk = dwc_eth_find_clk(plat_dat, "phy_ref_clk"); return 0; } @@ -237,18 +242,12 @@ static int tegra_eqos_probe(struct platform_device *pdev, eqos->dev = &pdev->dev; eqos->regs = res->addr; + eqos->clk_slave = plat_dat->stmmac_clk; if (!is_of_node(dev->fwnode)) goto bypass_clk_reset_gpio; - for (int i = 0; i < plat_dat->num_clks; i++) { - if (strcmp(plat_dat->clks[i].id, "slave_bus") == 0) { - eqos->clk_slave = plat_dat->clks[i].clk; - plat_dat->stmmac_clk = eqos->clk_slave; - } else if (strcmp(plat_dat->clks[i].id, "tx") == 0) { - eqos->clk_tx = plat_dat->clks[i].clk; - } - } + eqos->clk_tx = dwc_eth_find_clk(plat_dat, "tx"); eqos->reset = devm_gpiod_get(&pdev->dev, "phy-reset", GPIOD_OUT_HIGH); if (IS_ERR(eqos->reset)) { @@ -312,15 +311,18 @@ struct dwc_eth_dwmac_data { struct plat_stmmacenet_data *plat_dat, struct stmmac_resources *res); void (*remove)(struct platform_device *pdev); + const char *stmmac_clk_name; }; static const struct dwc_eth_dwmac_data dwc_qos_data = { .probe = dwc_qos_probe, + .stmmac_clk_name = "apb_pclk", }; static const struct dwc_eth_dwmac_data tegra_eqos_data = { .probe = tegra_eqos_probe, .remove = tegra_eqos_remove, + .stmmac_clk_name = "slave_bus", }; static int dwc_eth_dwmac_probe(struct platform_device *pdev) @@ -360,6 +362,8 @@ static int dwc_eth_dwmac_probe(struct platform_device *pdev) if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to enable clocks\n"); + plat_dat->stmmac_clk = dwc_eth_find_clk(plat_dat, data->stmmac_clk_name); + ret = data->probe(pdev, plat_dat, &stmmac_res); if (ret < 0) { dev_err_probe(&pdev->dev, ret, "failed to probe subdriver\n");