From patchwork Mon Nov 4 17:02:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Chevallier X-Patchwork-Id: 13861630 X-Patchwork-Delegate: kuba@kernel.org Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 BEFC11CD15; Mon, 4 Nov 2024 17:02:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730739781; cv=none; b=bFIONHQQmLOu9knSC5UgFlq6OpbNPjUWI2tn+WpsLt/dY/i7OwIBjcScnZdSe5WqPfQ13RyDD4IpJ3oyP8YNJvy8pwblzqw9drtqUPU7y6dHXAkEn3BKJKjMDE+qeYBQn3ZCUikBUWk0ybE+H5IppzuBgoBmfHMxFr8UnBXCPHk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730739781; c=relaxed/simple; bh=h0ET1UOrL/Rv2bl967sK/TaJGPwryi3uBWVbrLf1dGo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nswOHJyDO2S3ek4/YTOVqUIbVARUzugsEjmwJ6ztBilr5uh6wvTZoEHquFGRGYcjCrM8yvLYu+2FR6OVY6Oha6hNqhHF5piz+8mlqvOuohobWGbps//kQJSvQzreCS2w1N9XoPy/DYdC1kgGs3jhl0etqDl7qN5QfWBLAnNJC0w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=P/ylVa50; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="P/ylVa50" Received: by mail.gandi.net (Postfix) with ESMTPSA id 67A0260003; Mon, 4 Nov 2024 17:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1730739778; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/SPSBRQipSII7hd35ejo1FRCOBIsfi2Df67vBJxKStA=; b=P/ylVa50a+BLdkHAgE7RjPYnPZ2RVCr9fPAnphAuuCYjYTKraswaYmWf0aDEbPzaYSLzrm XsFpX1Fl0SPyWabDsuWUXldUhR8/MIbP3DTaB9Q1cabYNyxOLeKeOwLUmsbcIGXWH1xCwn ZhK9tofPBP/dFq5TX9mBsdbyYNAdxVBZ6UczkW6HnnlFmRa56RJZeCPmZHH8qtUtt5RMLI 2/8BcVWO0ERuUpFB4OHm6NKrj+xIKToRjV5E1IVg2o4b46eFNHSDj6FzsHRoxBjsMI2EnA SBX2dSDqxbVKNqRgRnDrd1L9+QB3y5PvPqI2tYPADfiNX8B1Qqsr5P8GHvc9+g== From: Maxime Chevallier To: Alexandre Torgue , Jose Abreu , Andrew Lunn , davem@davemloft.net, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Richard Cochran Cc: Maxime Chevallier , =?utf-8?q?Alexis_Loth?= =?utf-8?q?or=C3=A9?= , Thomas Petazzoni , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 3/9] net: stmmac: Only update the auto-discovered PTP clock features Date: Mon, 4 Nov 2024 18:02:43 +0100 Message-ID: <20241104170251.2202270-4-maxime.chevallier@bootlin.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241104170251.2202270-1-maxime.chevallier@bootlin.com> References: <20241104170251.2202270-1-maxime.chevallier@bootlin.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: maxime.chevallier@bootlin.com X-Patchwork-Delegate: kuba@kernel.org Some DWMAC variants such as dwmac1000 don't support discovering the number of output pps and auxiliary snapshots. Allow these parameters to be defined in default ptp_clock_info, and let them be updated only when the feature discovery yielded a result. Signed-off-by: Maxime Chevallier --- V2: No changes drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c index 41581f516ea9..8ea2b4226234 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c @@ -303,8 +303,14 @@ void stmmac_ptp_register(struct stmmac_priv *priv) if (priv->plat->has_gmac4 && priv->plat->clk_ptp_rate) priv->plat->cdc_error_adj = (2 * NSEC_PER_SEC) / priv->plat->clk_ptp_rate; - priv->ptp_clock_ops.n_per_out = priv->dma_cap.pps_out_num; - priv->ptp_clock_ops.n_ext_ts = priv->dma_cap.aux_snapshot_n; + /* Update the ptp clock parameters based on feature discovery, when + * available + */ + if (priv->dma_cap.pps_out_num) + priv->ptp_clock_ops.n_per_out = priv->dma_cap.pps_out_num; + + if (priv->dma_cap.aux_snapshot_n) + priv->ptp_clock_ops.n_ext_ts = priv->dma_cap.aux_snapshot_n; if (priv->plat->ptp_max_adj) priv->ptp_clock_ops.max_adj = priv->plat->ptp_max_adj;