linux-kernel - [PATCH v1 31/36] soc: fsl: cpm1: qmc: Introduce qmc

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Message-ID: <20240729142107.104574-32-herve.codina@bootlin.com>
Date: Mon, 29 Jul 2024 16:21:00 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Herve Codina <herve.codina@...tlin.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Qiang Zhao <qiang.zhao@....com>,
	Li Yang <leoyang.li@....com>,
	Mark Brown <broonie@...nel.org>
Cc: linuxppc-dev@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v1 31/36] soc: fsl: cpm1: qmc: Introduce qmc_version

Current code handles the CPM1 version of QMC.

In order to prepare the support for the QUICC Engine (QE) version of
QMC, introduce qmc_version to identify versions. This will enable the
code to make the distinction between several QMC implementations.

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

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index 062477b7426e..8ff7eaaa4c50 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -215,7 +215,12 @@ struct qmc_chan {
 	bool	is_rx_stopped;
 };
 
+enum qmc_version {
+	QMC_CPM1,
+};
+
 struct qmc_data {
+	enum qmc_version version;
 	u32 tstate; /* Initial TSTATE value */
 	u32 rstate; /* Initial RSTATE value */
 	u32 zistate; /* Initial ZISTATE value */
@@ -1811,6 +1816,7 @@ static void qmc_remove(struct platform_device *pdev)
 }
 
 static const struct qmc_data qmc_data_cpm1 = {
+	.version = QMC_CPM1,
 	.tstate = 0x30000000,
 	.rstate = 0x31000000,
 	.zistate = 0x00000100,
-- 
2.45.0