linux-kernel - [PATCH 3/3] tty: serial: samsung: Remove unused artpec-8 specific code

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Message-ID: <20250911141605.13034-4-ravi.patel@samsung.com>
Date: Thu, 11 Sep 2025 19:46:05 +0530
From: Ravi Patel <ravi.patel@...sung.com>
To: gregkh@...uxfoundation.org, jirislaby@...nel.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, jesper.nilsson@...s.com,
	lars.persson@...s.com, alim.akhtar@...sung.com, arnd@...nel.org,
	krzk@...nel.org
Cc: andriy.shevchenko@...ux.intel.com, geert+renesas@...der.be,
	thierry.bultel.yh@...renesas.com, dianders@...omium.org,
	robert.marko@...tura.hr, schnelle@...ux.ibm.com, kkartik@...dia.com,
	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-arm-kernel@...s.com,
	ksk4725@...sia.com, kenkim@...sia.com, smn1196@...sia.com,
	pjsin865@...sia.com, shradha.t@...sung.com, Ravi Patel
	<ravi.patel@...sung.com>
Subject: [PATCH 3/3] tty: serial: samsung: Remove unused artpec-8 specific
 code

Since ARTPEC-8 is using exynos8895 driver data, remove the unused
artpec-8 specific driver data.

ARTPEC-8 is using exynos4210 for earlycon, so earlycon code
for ARTPEC-8 is also not required.

Signed-off-by: Ravi Patel <ravi.patel@...sung.com>
---
NOTE: This is exactly the revert of the below commit.
commit 1db536f95d0264a2b83fb032d5b057ba0113e622
Author: Vincent Whitchurch <vincent.whitchurch@...s.com>
Date:   Fri Mar 11 10:45:15 2022 +0100

tty: serial: samsung: Add ARTPEC-8 support
---
 drivers/tty/serial/Kconfig       |  2 +-
 drivers/tty/serial/samsung_tty.c | 38 --------------------------------
 2 files changed, 1 insertion(+), 39 deletions(-)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 44427415a80d..6f4d6f44d997 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -219,7 +219,7 @@ config SERIAL_CLPS711X_CONSOLE

 config SERIAL_SAMSUNG
 	tristate "Samsung SoC serial support"
-	depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_APPLE || ARCH_ARTPEC || COMPILE_TEST
+	depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_APPLE || COMPILE_TEST
 	select SERIAL_CORE
 	help
 	  Support for the on-chip UARTs on the Samsung
diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index 2fb58c626daf..322ab280a59e 100644
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -2577,37 +2577,6 @@ static const struct s3c24xx_serial_drv_data s5l_serial_drv_data = {
 #define S5L_SERIAL_DRV_DATA NULL
 #endif

-#if defined(CONFIG_ARCH_ARTPEC)
-static const struct s3c24xx_serial_drv_data artpec8_serial_drv_data = {
-	.info = {
-		.name		= "Axis ARTPEC-8 UART",
-		.type		= TYPE_S3C6400,
-		.port_type	= PORT_S3C6400,
-		.iotype		= UPIO_MEM,
-		.fifosize	= 64,
-		.has_divslot	= true,
-		.rx_fifomask	= S5PV210_UFSTAT_RXMASK,
-		.rx_fifoshift	= S5PV210_UFSTAT_RXSHIFT,
-		.rx_fifofull	= S5PV210_UFSTAT_RXFULL,
-		.tx_fifofull	= S5PV210_UFSTAT_TXFULL,
-		.tx_fifomask	= S5PV210_UFSTAT_TXMASK,
-		.tx_fifoshift	= S5PV210_UFSTAT_TXSHIFT,
-		.def_clk_sel	= S3C2410_UCON_CLKSEL0,
-		.num_clks	= 1,
-		.clksel_mask	= 0,
-		.clksel_shift	= 0,
-	},
-	.def_cfg = {
-		.ucon		= S5PV210_UCON_DEFAULT,
-		.ufcon		= S5PV210_UFCON_DEFAULT,
-		.has_fracval	= 1,
-	}
-};
-#define ARTPEC8_SERIAL_DRV_DATA (&artpec8_serial_drv_data)
-#else
-#define ARTPEC8_SERIAL_DRV_DATA (NULL)
-#endif
-
 static const struct platform_device_id s3c24xx_serial_driver_ids[] = {
 	{
 		.name		= "s3c6400-uart",
@@ -2627,9 +2596,6 @@ static const struct platform_device_id s3c24xx_serial_driver_ids[] = {
 	}, {
 		.name		= "exynos850-uart",
 		.driver_data	= (kernel_ulong_t)EXYNOS850_SERIAL_DRV_DATA,
-	}, {
-		.name		= "artpec8-uart",
-		.driver_data	= (kernel_ulong_t)ARTPEC8_SERIAL_DRV_DATA,
 	}, {
 		.name		= "gs101-uart",
 		.driver_data	= (kernel_ulong_t)GS101_SERIAL_DRV_DATA,
@@ -2655,8 +2621,6 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = {
 		.data = S5L_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,exynos850-uart",
 		.data = EXYNOS850_SERIAL_DRV_DATA },
-	{ .compatible = "axis,artpec8-uart",
-		.data = ARTPEC8_SERIAL_DRV_DATA },
 	{ .compatible = "google,gs101-uart",
 		.data = GS101_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,exynos8895-uart",
@@ -2828,8 +2792,6 @@ OF_EARLYCON_DECLARE(s5pv210, "samsung,s5pv210-uart",
 			s5pv210_early_console_setup);
 OF_EARLYCON_DECLARE(exynos4210, "samsung,exynos4210-uart",
 			s5pv210_early_console_setup);
-OF_EARLYCON_DECLARE(artpec8, "axis,artpec8-uart",
-			s5pv210_early_console_setup);

 static int __init gs101_early_console_setup(struct earlycon_device *device,
 					    const char *opt)
--
2.17.1