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Message-Id: <20220308080919.152715-5-krzysztof.kozlowski@canonical.com>
Date: Tue, 8 Mar 2022 09:09:15 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Alim Akhtar <alim.akhtar@...sung.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-serial@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v3 4/8] tty: serial: samsung: constify s3c24xx_serial_drv_data
The driver data (struct s3c24xx_serial_drv_data) is only used to
initialize the driver properly and is not modified. Make it const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
Tested-by: Alim Akhtar <alim.akhtar@...sung.com>
---
drivers/tty/serial/samsung_tty.c | 58 ++++++++++++++++----------------
1 file changed, 29 insertions(+), 29 deletions(-)
diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c
index 66434eb58db8..c4b13f2d6e26 100644
--- a/drivers/tty/serial/samsung_tty.c
+++ b/drivers/tty/serial/samsung_tty.c
@@ -136,14 +136,14 @@ struct s3c24xx_uart_port {
unsigned int tx_mode;
unsigned int rx_mode;
- struct s3c24xx_uart_info *info;
+ const struct s3c24xx_uart_info *info;
struct clk *clk;
struct clk *baudclk;
struct uart_port port;
- struct s3c24xx_serial_drv_data *drv_data;
+ const struct s3c24xx_serial_drv_data *drv_data;
/* reference to platform data */
- struct s3c2410_uartcfg *cfg;
+ const struct s3c2410_uartcfg *cfg;
struct s3c24xx_uart_dma *dma;
@@ -221,7 +221,7 @@ static inline void s3c24xx_clear_bit(struct uart_port *port, int idx,
local_irq_restore(flags);
}
-static inline struct s3c24xx_uart_port *to_ourport(struct uart_port *port)
+static inline struct s3c24xx_uart_port *to_ourport(const struct uart_port *port)
{
return container_of(port, struct s3c24xx_uart_port, port);
}
@@ -573,13 +573,13 @@ static void s3c24xx_serial_stop_rx(struct uart_port *port)
}
}
-static inline struct s3c24xx_uart_info
+static inline const struct s3c24xx_uart_info
*s3c24xx_port_to_info(struct uart_port *port)
{
return to_ourport(port)->info;
}
-static inline struct s3c2410_uartcfg
+static inline const struct s3c2410_uartcfg
*s3c24xx_port_to_cfg(struct uart_port *port)
{
struct s3c24xx_uart_port *ourport;
@@ -594,7 +594,7 @@ static inline struct s3c2410_uartcfg
static int s3c24xx_serial_rx_fifocnt(struct s3c24xx_uart_port *ourport,
unsigned long ufstat)
{
- struct s3c24xx_uart_info *info = ourport->info;
+ const struct s3c24xx_uart_info *info = ourport->info;
if (ufstat & info->rx_fifofull)
return ourport->port.fifosize;
@@ -986,7 +986,7 @@ static irqreturn_t apple_serial_handle_irq(int irq, void *id)
static unsigned int s3c24xx_serial_tx_empty(struct uart_port *port)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
unsigned long ufstat = rd_regl(port, S3C2410_UFSTAT);
unsigned long ufcon = rd_regl(port, S3C2410_UFCON);
@@ -1405,7 +1405,7 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
static inline int s3c24xx_serial_getsource(struct uart_port *port)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
unsigned int ucon;
if (info->num_clks == 1)
@@ -1419,7 +1419,7 @@ static inline int s3c24xx_serial_getsource(struct uart_port *port)
static void s3c24xx_serial_setsource(struct uart_port *port,
unsigned int clk_sel)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
unsigned int ucon;
if (info->num_clks == 1)
@@ -1438,7 +1438,7 @@ static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
unsigned int req_baud, struct clk **best_clk,
unsigned int *clk_num)
{
- struct s3c24xx_uart_info *info = ourport->info;
+ const struct s3c24xx_uart_info *info = ourport->info;
struct clk *clk;
unsigned long rate;
unsigned int cnt, baud, quot, best_quot = 0;
@@ -1522,7 +1522,7 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
struct ktermios *termios,
struct ktermios *old)
{
- struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
+ const struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
struct s3c24xx_uart_port *ourport = to_ourport(port);
struct clk *clk = ERR_PTR(-EINVAL);
unsigned long flags;
@@ -1691,7 +1691,7 @@ static const char *s3c24xx_serial_type(struct uart_port *port)
static void s3c24xx_serial_config_port(struct uart_port *port, int flags)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
if (flags & UART_CONFIG_TYPE)
port->type = info->port_type;
@@ -1703,7 +1703,7 @@ static void s3c24xx_serial_config_port(struct uart_port *port, int flags)
static int
s3c24xx_serial_verify_port(struct uart_port *port, struct serial_struct *ser)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
if (ser->type != PORT_UNKNOWN && ser->type != info->port_type)
return -EINVAL;
@@ -1873,9 +1873,9 @@ s3c24xx_serial_ports[CONFIG_SERIAL_SAMSUNG_UARTS] = {
*/
static void s3c24xx_serial_resetport(struct uart_port *port,
- struct s3c2410_uartcfg *cfg)
+ const struct s3c2410_uartcfg *cfg)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
unsigned long ucon = rd_regl(port, S3C2410_UCON);
ucon &= (info->clksel_mask | info->ucon_mask);
@@ -1979,7 +1979,7 @@ s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *port)
static int s3c24xx_serial_enable_baudclk(struct s3c24xx_uart_port *ourport)
{
struct device *dev = ourport->port.dev;
- struct s3c24xx_uart_info *info = ourport->info;
+ const struct s3c24xx_uart_info *info = ourport->info;
char clk_name[MAX_CLK_NAME_LENGTH];
unsigned int clk_sel;
struct clk *clk;
@@ -2021,7 +2021,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
struct platform_device *platdev)
{
struct uart_port *port = &ourport->port;
- struct s3c2410_uartcfg *cfg = ourport->cfg;
+ const struct s3c2410_uartcfg *cfg = ourport->cfg;
struct resource *res;
int ret;
@@ -2156,7 +2156,7 @@ static const struct of_device_id s3c24xx_uart_dt_match[];
static int probe_index;
-static inline struct s3c24xx_serial_drv_data *
+static inline const struct s3c24xx_serial_drv_data *
s3c24xx_get_driver_data(struct platform_device *pdev)
{
#ifdef CONFIG_OF
@@ -2419,7 +2419,7 @@ static struct uart_port *cons_uart;
static int
s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
{
- struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+ const struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
unsigned long ufstat, utrstat;
if (ufcon & S3C2410_UFCON_FIFOMODE) {
@@ -2615,7 +2615,7 @@ static struct console s3c24xx_serial_console = {
#endif /* CONFIG_SERIAL_SAMSUNG_CONSOLE */
#ifdef CONFIG_CPU_S3C2410
-static struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
.info = {
.name = "Samsung S3C2410 UART",
.type = TYPE_S3C24XX,
@@ -2643,7 +2643,7 @@ static struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
#endif
#ifdef CONFIG_CPU_S3C2412
-static struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
.info = {
.name = "Samsung S3C2412 UART",
.type = TYPE_S3C24XX,
@@ -2673,7 +2673,7 @@ static struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2416) || \
defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2442)
-static struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
.info = {
.name = "Samsung S3C2440 UART",
.type = TYPE_S3C24XX,
@@ -2703,7 +2703,7 @@ static struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
#endif
#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
-static struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
.info = {
.name = "Samsung S3C6400 UART",
.type = TYPE_S3C6400,
@@ -2732,7 +2732,7 @@ static struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
#endif
#ifdef CONFIG_CPU_S5PV210
-static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
.info = {
.name = "Samsung S5PV210 UART",
.type = TYPE_S3C6400,
@@ -2784,17 +2784,17 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
.has_fracval = 1, \
} \
-static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
EXYNOS_COMMON_SERIAL_DRV_DATA(),
.fifosize = { 256, 64, 16, 16 },
};
-static struct s3c24xx_serial_drv_data exynos5433_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data exynos5433_serial_drv_data = {
EXYNOS_COMMON_SERIAL_DRV_DATA(),
.fifosize = { 64, 256, 16, 256 },
};
-static struct s3c24xx_serial_drv_data exynos850_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data exynos850_serial_drv_data = {
EXYNOS_COMMON_SERIAL_DRV_DATA(),
.fifosize = { 256, 64, 64, 64 },
};
@@ -2810,7 +2810,7 @@ static struct s3c24xx_serial_drv_data exynos850_serial_drv_data = {
#endif
#ifdef CONFIG_ARCH_APPLE
-static struct s3c24xx_serial_drv_data s5l_serial_drv_data = {
+static const struct s3c24xx_serial_drv_data s5l_serial_drv_data = {
.info = {
.name = "Apple S5L UART",
.type = TYPE_APPLE_S5L,
--
2.32.0
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