netdev - [net-next v2 5/5] net: ethernet: renesas: rcar_gen4

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Message-ID: <20231120160118.3524309-6-niklas.soderlund+renesas@ragnatech.se>
Date: Mon, 20 Nov 2023 17:01:18 +0100
From: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Richard Cochran <richardcochran@...il.com>,
	netdev@...r.kernel.org
Cc: linux-renesas-soc@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
Subject: [net-next v2 5/5] net: ethernet: renesas: rcar_gen4_ptp: Break out to module

The Gen4 gPTP support will be shared between the existing Renesas
Ethernet Switch driver and the upcoming Renesas Ethernet-TSN driver. In
preparation for this break out the gPTP support to its own module.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
---
* Changes since v1
- s/Gen3/Gen4/ in commit message.
- Add missing MODULE_AUTHOR() and MODULE_DESCRIPTION() definitions.
- Make Kconfig tristate depend on COMPILE_TEST. All drivers that make
  use of the shared code auto selects this anyhow.
---
 drivers/net/ethernet/renesas/Kconfig         | 10 ++++++++++
 drivers/net/ethernet/renesas/Makefile        |  5 +++--
 drivers/net/ethernet/renesas/rcar_gen4_ptp.c |  7 +++++++
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index 8ef5b0241e64..5a2e7da90e69 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -44,7 +44,17 @@ config RENESAS_ETHER_SWITCH
 	select CRC32
 	select MII
 	select PHYLINK
+	select RENESAS_GEN4_PTP
 	help
 	  Renesas Ethernet Switch device driver.
 
+config RENESAS_GEN4_PTP
+	tristate "Renesas R-Car Gen4 gPTP support" if COMPILE_TEST
+	depends on ARCH_RENESAS || COMPILE_TEST
+	select CRC32
+	select MII
+	select PHYLIB
+	help
+	  Renesas R-Car Gen4 gPTP device driver.
+
 endif # NET_VENDOR_RENESAS
diff --git a/drivers/net/ethernet/renesas/Makefile b/drivers/net/ethernet/renesas/Makefile
index e8fd85b5fe8f..9070acfd6aaf 100644
--- a/drivers/net/ethernet/renesas/Makefile
+++ b/drivers/net/ethernet/renesas/Makefile
@@ -8,5 +8,6 @@ obj-$(CONFIG_SH_ETH) += sh_eth.o
 ravb-objs := ravb_main.o ravb_ptp.o
 obj-$(CONFIG_RAVB) += ravb.o
 
-rswitch_drv-objs := rswitch.o rcar_gen4_ptp.o
-obj-$(CONFIG_RENESAS_ETHER_SWITCH) += rswitch_drv.o
+obj-$(CONFIG_RENESAS_ETHER_SWITCH) += rswitch.o
+
+obj-$(CONFIG_RENESAS_GEN4_PTP) += rcar_gen4_ptp.o
diff --git a/drivers/net/ethernet/renesas/rcar_gen4_ptp.c b/drivers/net/ethernet/renesas/rcar_gen4_ptp.c
index 9583894634ae..72e7fcc56693 100644
--- a/drivers/net/ethernet/renesas/rcar_gen4_ptp.c
+++ b/drivers/net/ethernet/renesas/rcar_gen4_ptp.c
@@ -176,6 +176,7 @@ int rcar_gen4_ptp_register(struct rcar_gen4_ptp_private *ptp_priv,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(rcar_gen4_ptp_register);
 
 int rcar_gen4_ptp_unregister(struct rcar_gen4_ptp_private *ptp_priv)
 {
@@ -183,6 +184,7 @@ int rcar_gen4_ptp_unregister(struct rcar_gen4_ptp_private *ptp_priv)
 
 	return ptp_clock_unregister(ptp_priv->clock);
 }
+EXPORT_SYMBOL_GPL(rcar_gen4_ptp_unregister);
 
 struct rcar_gen4_ptp_private *rcar_gen4_ptp_alloc(struct platform_device *pdev)
 {
@@ -196,3 +198,8 @@ struct rcar_gen4_ptp_private *rcar_gen4_ptp_alloc(struct platform_device *pdev)
 
 	return ptp;
 }
+EXPORT_SYMBOL_GPL(rcar_gen4_ptp_alloc);
+
+MODULE_AUTHOR("Yoshihiro Shimoda");
+MODULE_DESCRIPTION("Renesas R-Car Gen4 gPTP driver");
+MODULE_LICENSE("GPL");
-- 
2.42.1