ARM: s3c: remove s3c24xx specific hacks

A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or
similar symbols that are no longer available with the platform gone,
though the drivers themselves are still used on newer platforms,
so remove these hacks.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 199 deletions

diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index 0fce856434da..2a7520ad3abd 100644
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -152,10 +152,6 @@ struct s3c24xx_uart_port {
 	const struct s3c2410_uartcfg	*cfg;
 
 	struct s3c24xx_uart_dma		*dma;
-
-#ifdef CONFIG_ARM_S3C24XX_CPUFREQ
-	struct notifier_block		freq_transition;
-#endif
 };
 
 static void s3c24xx_serial_tx_chars(struct s3c24xx_uart_port *ourport);
@@ -1855,93 +1851,6 @@ static void s3c24xx_serial_resetport(struct uart_port *port,
 	udelay(1);
 }
 
-#ifdef CONFIG_ARM_S3C24XX_CPUFREQ
-
-static int s3c24xx_serial_cpufreq_transition(struct notifier_block *nb,
-					     unsigned long val, void *data)
-{
-	struct s3c24xx_uart_port *port;
-	struct uart_port *uport;
-
-	port = container_of(nb, struct s3c24xx_uart_port, freq_transition);
-	uport = &port->port;
-
-	/* check to see if port is enabled */
-
-	if (port->pm_level != 0)
-		return 0;
-
-	/* try and work out if the baudrate is changing, we can detect
-	 * a change in rate, but we do not have support for detecting
-	 * a disturbance in the clock-rate over the change.
-	 */
-
-	if (IS_ERR(port->baudclk))
-		goto exit;
-
-	if (port->baudclk_rate == clk_get_rate(port->baudclk))
-		goto exit;
-
-	if (val == CPUFREQ_PRECHANGE) {
-		/* we should really shut the port down whilst the
-		 * frequency change is in progress.
-		 */
-
-	} else if (val == CPUFREQ_POSTCHANGE) {
-		struct ktermios *termios;
-		struct tty_struct *tty;
-
-		if (uport->state == NULL)
-			goto exit;
-
-		tty = uport->state->port.tty;
-
-		if (tty == NULL)
-			goto exit;
-
-		termios = &tty->termios;
-
-		if (termios == NULL) {
-			dev_warn(uport->dev, "%s: no termios?\n", __func__);
-			goto exit;
-		}
-
-		s3c24xx_serial_set_termios(uport, termios, NULL);
-	}
-
-exit:
-	return 0;
-}
-
-static inline int
-s3c24xx_serial_cpufreq_register(struct s3c24xx_uart_port *port)
-{
-	port->freq_transition.notifier_call = s3c24xx_serial_cpufreq_transition;
-
-	return cpufreq_register_notifier(&port->freq_transition,
-					 CPUFREQ_TRANSITION_NOTIFIER);
-}
-
-static inline void
-s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *port)
-{
-	cpufreq_unregister_notifier(&port->freq_transition,
-				    CPUFREQ_TRANSITION_NOTIFIER);
-}
-
-#else
-static inline int
-s3c24xx_serial_cpufreq_register(struct s3c24xx_uart_port *port)
-{
-	return 0;
-}
-
-static inline void
-s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *port)
-{
-}
-#endif
-
 static int s3c24xx_serial_enable_baudclk(struct s3c24xx_uart_port *ourport)
 {
 	struct device *dev = ourport->port.dev;
@@ -2233,10 +2142,6 @@ static int s3c24xx_serial_probe(struct platform_device *pdev)
 	if (!IS_ERR(ourport->baudclk))
 		clk_disable_unprepare(ourport->baudclk);
 
-	ret = s3c24xx_serial_cpufreq_register(ourport);
-	if (ret < 0)
-		dev_err(&pdev->dev, "failed to add cpufreq notifier\n");
-
 	probe_index++;
 
 	return 0;
@@ -2247,7 +2152,6 @@ static int s3c24xx_serial_remove(struct platform_device *dev)
 	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
 
 	if (port) {
-		s3c24xx_serial_cpufreq_deregister(to_ourport(port));
 		uart_remove_one_port(&s3c24xx_uart_drv, port);
 	}
 
@@ -2585,94 +2489,6 @@ static struct console s3c24xx_serial_console = {
 };
 #endif /* CONFIG_SERIAL_SAMSUNG_CONSOLE */
 
-#ifdef CONFIG_CPU_S3C2410
-static const struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
-	.info = {
-		.name		= "Samsung S3C2410 UART",
-		.type		= TYPE_S3C24XX,
-		.port_type	= PORT_S3C2410,
-		.fifosize	= 16,
-		.rx_fifomask	= S3C2410_UFSTAT_RXMASK,
-		.rx_fifoshift	= S3C2410_UFSTAT_RXSHIFT,
-		.rx_fifofull	= S3C2410_UFSTAT_RXFULL,
-		.tx_fifofull	= S3C2410_UFSTAT_TXFULL,
-		.tx_fifomask	= S3C2410_UFSTAT_TXMASK,
-		.tx_fifoshift	= S3C2410_UFSTAT_TXSHIFT,
-		.def_clk_sel	= S3C2410_UCON_CLKSEL0,
-		.num_clks	= 2,
-		.clksel_mask	= S3C2410_UCON_CLKMASK,
-		.clksel_shift	= S3C2410_UCON_CLKSHIFT,
-	},
-	.def_cfg = {
-		.ucon		= S3C2410_UCON_DEFAULT,
-		.ufcon		= S3C2410_UFCON_DEFAULT,
-	},
-};
-#define S3C2410_SERIAL_DRV_DATA (&s3c2410_serial_drv_data)
-#else
-#define S3C2410_SERIAL_DRV_DATA NULL
-#endif
-
-#ifdef CONFIG_CPU_S3C2412
-static const struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
-	.info = {
-		.name		= "Samsung S3C2412 UART",
-		.type		= TYPE_S3C24XX,
-		.port_type	= PORT_S3C2412,
-		.fifosize	= 64,
-		.has_divslot	= 1,
-		.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-		.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-		.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-		.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-		.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-		.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-		.def_clk_sel	= S3C2410_UCON_CLKSEL2,
-		.num_clks	= 4,
-		.clksel_mask	= S3C2412_UCON_CLKMASK,
-		.clksel_shift	= S3C2412_UCON_CLKSHIFT,
-	},
-	.def_cfg = {
-		.ucon		= S3C2410_UCON_DEFAULT,
-		.ufcon		= S3C2410_UFCON_DEFAULT,
-	},
-};
-#define S3C2412_SERIAL_DRV_DATA (&s3c2412_serial_drv_data)
-#else
-#define S3C2412_SERIAL_DRV_DATA NULL
-#endif
-
-#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2416) || \
-	defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2442)
-static const struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
-	.info = {
-		.name		= "Samsung S3C2440 UART",
-		.type		= TYPE_S3C24XX,
-		.port_type	= PORT_S3C2440,
-		.fifosize	= 64,
-		.has_divslot	= 1,
-		.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-		.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-		.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-		.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-		.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-		.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-		.def_clk_sel	= S3C2410_UCON_CLKSEL2,
-		.num_clks	= 4,
-		.clksel_mask	= S3C2412_UCON_CLKMASK,
-		.clksel_shift	= S3C2412_UCON_CLKSHIFT,
-		.ucon_mask	= S3C2440_UCON0_DIVMASK,
-	},
-	.def_cfg = {
-		.ucon		= S3C2410_UCON_DEFAULT,
-		.ufcon		= S3C2410_UFCON_DEFAULT,
-	},
-};
-#define S3C2440_SERIAL_DRV_DATA (&s3c2440_serial_drv_data)
-#else
-#define S3C2440_SERIAL_DRV_DATA NULL
-#endif
-
 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
 static const struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
 	.info = {
@@ -2841,15 +2657,6 @@ static const struct s3c24xx_serial_drv_data artpec8_serial_drv_data = {
 
 static const struct platform_device_id s3c24xx_serial_driver_ids[] = {
 	{
-		.name		= "s3c2410-uart",
-		.driver_data	= (kernel_ulong_t)S3C2410_SERIAL_DRV_DATA,
-	}, {
-		.name		= "s3c2412-uart",
-		.driver_data	= (kernel_ulong_t)S3C2412_SERIAL_DRV_DATA,
-	}, {
-		.name		= "s3c2440-uart",
-		.driver_data	= (kernel_ulong_t)S3C2440_SERIAL_DRV_DATA,
-	}, {
 		.name		= "s3c6400-uart",
 		.driver_data	= (kernel_ulong_t)S3C6400_SERIAL_DRV_DATA,
 	}, {
@@ -2877,12 +2684,6 @@ MODULE_DEVICE_TABLE(platform, s3c24xx_serial_driver_ids);
 
 #ifdef CONFIG_OF
 static const struct of_device_id s3c24xx_uart_dt_match[] = {
-	{ .compatible = "samsung,s3c2410-uart",
-		.data = S3C2410_SERIAL_DRV_DATA },
-	{ .compatible = "samsung,s3c2412-uart",
-		.data = S3C2412_SERIAL_DRV_DATA },
-	{ .compatible = "samsung,s3c2440-uart",
-		.data = S3C2440_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s3c6400-uart",
 		.data = S3C6400_SERIAL_DRV_DATA },
 	{ .compatible = "samsung,s5pv210-uart",