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Message-ID: <20230726150225.483464-9-herve.codina@bootlin.com>
Date:   Wed, 26 Jul 2023 17:02:04 +0200
From:   Herve Codina <herve.codina@...tlin.com>
To:     Herve Codina <herve.codina@...tlin.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        alsa-devel@...a-project.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v2 08/28] soc: fsl: cpm1: qmc: Introduce available timeslots masks

Available timeslots masks define timeslots available for the related
channel. These timeslots are defined by the QMC binding.

Timeslots used are initialized to available timeslots but can be a
subset of available timeslots.
This prepares the dynamic timeslots management (ie. changing timeslots
at runtime).

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 drivers/soc/fsl/qe/qmc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 2d2a9d88ba6c..21ad7e79e7bd 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -177,7 +177,9 @@ struct qmc_chan {
 	struct qmc *qmc;
 	void __iomem *s_param;
 	enum qmc_mode mode;
+	u64	tx_ts_mask_avail;
 	u64	tx_ts_mask;
+	u64	rx_ts_mask_avail;
 	u64	rx_ts_mask;
 	bool is_reverse_data;
 
@@ -875,7 +877,8 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np)
 			of_node_put(chan_np);
 			return ret;
 		}
-		chan->tx_ts_mask = ts_mask;
+		chan->tx_ts_mask_avail = ts_mask;
+		chan->tx_ts_mask = chan->tx_ts_mask_avail;
 
 		ret = of_property_read_u64(chan_np, "fsl,rx-ts-mask", &ts_mask);
 		if (ret) {
@@ -884,7 +887,8 @@ static int qmc_of_parse_chans(struct qmc *qmc, struct device_node *np)
 			of_node_put(chan_np);
 			return ret;
 		}
-		chan->rx_ts_mask = ts_mask;
+		chan->rx_ts_mask_avail = ts_mask;
+		chan->rx_ts_mask = chan->rx_ts_mask_avail;
 
 		mode = "transparent";
 		ret = of_property_read_string(chan_np, "fsl,operational-mode", &mode);
-- 
2.41.0

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