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tty: serial: samsung: constify s3c24xx_serial_drv_data

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The driver data (struct s3c24xx_serial_drv_data) is only used to
initialize the driver properly and is not modified.  Make it const.

Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220308080919.152715-5-krzysztof.kozlowski@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Kozlowski 2022-03-08 09:09:15 +01:00 committed by Greg Kroah-Hartman
parent 3aec400965
commit 97a6cfe811
1 changed files with 29 additions and 29 deletions
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58
drivers/tty/serial/samsung_tty.c
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@ -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;
@ -983,7 +983,7 @@ 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);
@ -1402,7 +1402,7 @@ 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)
@ -1416,7 +1416,7 @@ 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)
@ -1435,7 +1435,7 @@ 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;
@ -1519,7 +1519,7 @@ 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;
@ -1688,7 +1688,7 @@ 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;
@ -1700,7 +1700,7 @@ 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;
@ -1870,9 +1870,9 @@ 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);
@ -1976,7 +1976,7 @@ 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;
@ -2018,7 +2018,7 @@ 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;
@ -2153,7 +2153,7 @@ 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
@ -2416,7 +2416,7 @@ 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) {
@ -2612,7 +2612,7 @@ 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,
@ -2640,7 +2640,7 @@ 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,
@ -2670,7 +2670,7 @@ 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,
@ -2700,7 +2700,7 @@ 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,
@ -2729,7 +2729,7 @@ 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,
@ -2781,17 +2781,17 @@ 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 },
};
@ -2807,7 +2807,7 @@ 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,