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serial: max310x: add macro for max number of ports

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Add macro to hold the maximum number of UART ports per IC/device.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Link: https://lore.kernel.org/all/ddbc67dd-f8a3-4a6a-954a-bee49260ecab@cesnet.cz/
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240118152213.2644269-8-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hugo Villeneuve 2024-01-18 10:22:03 -05:00 committed by Greg Kroah-Hartman
parent eaf29135ab
commit dbaa008389
1 changed files with 3 additions and 2 deletions
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5
drivers/tty/serial/max310x.c
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@ -30,6 +30,7 @@
#define MAX310X_MAJOR 204
#define MAX310X_MINOR 209
#define MAX310X_UART_NRMAX 16
#define MAX310X_MAX_PORTS 4 /* Maximum number of UART ports per IC. */
/* MAX310X register definitions */
#define MAX310X_RHR_REG (0x00) /* RX FIFO */
@ -1502,7 +1503,7 @@ static const struct max310x_if_cfg __maybe_unused max310x_spi_if_cfg = {
static int max310x_spi_probe(struct spi_device *spi)
{
const struct max310x_devtype *devtype;
struct regmap *regmaps[4];
struct regmap *regmaps[MAX310X_MAX_PORTS];
unsigned int i;
int ret;
@ -1604,7 +1605,7 @@ static int max310x_i2c_probe(struct i2c_client *client)
{
const struct max310x_devtype *devtype;
struct i2c_client *port_client;
struct regmap *regmaps[4];
struct regmap *regmaps[MAX310X_MAX_PORTS];
unsigned int i;
u8 port_addr;