diff options
author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2024-01-18 10:22:10 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-27 19:05:04 -0800 |
commit | 9464833a765f66a9fbc0b972e89c1e1a13f4d3a0 (patch) | |
tree | d482b4739fecf7782bdffe15eb08ec69e04c7272 /drivers/tty | |
parent | 74fe93eae5389c96d4cfd4bc0cc5a547373ab96a (diff) |
serial: max310x: use common power function for all variants
Simplify driver by defining a common function to handle the power
control of all variants.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20240118152213.2644269-15-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r-- | drivers/tty/serial/max310x.c | 44 |
1 files changed, 19 insertions, 25 deletions
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 83beaab3a0c5..e39d8ea51e4e 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -260,11 +260,12 @@ struct max310x_devtype { unsigned short max; } slave_addr; int nr; - void (*power)(struct uart_port *, int); char name[9]; u8 mode1; u8 rev_id_val; u8 rev_id_reg; /* Relevant only if rev_id_val is defined. */ + u8 power_reg; /* Register address for power/sleep control. */ + u8 power_bit; /* Bit for sleep or power-off mode (active high). */ }; struct max310x_one { @@ -378,18 +379,10 @@ static int max310x_detect(struct device *dev) static void max310x_power(struct uart_port *port, int on) { - max310x_port_update(port, MAX310X_MODE1_REG, - MAX310X_MODE1_FORCESLEEP_BIT, - on ? 0 : MAX310X_MODE1_FORCESLEEP_BIT); - if (on) - msleep(50); -} + struct max310x_port *s = dev_get_drvdata(port->dev); -static void max14830_power(struct uart_port *port, int on) -{ - max310x_port_update(port, MAX310X_BRGCFG_REG, - MAX14830_BRGCFG_CLKDIS_BIT, - on ? 0 : MAX14830_BRGCFG_CLKDIS_BIT); + max310x_port_update(port, s->devtype->power_reg, s->devtype->power_bit, + on ? 0 : s->devtype->power_bit); if (on) msleep(50); } @@ -400,7 +393,8 @@ static const struct max310x_devtype max3107_devtype = { .mode1 = MAX310X_MODE1_AUTOSLEEP_BIT | MAX310X_MODE1_IRQSEL_BIT, .rev_id_val = MAX3107_REV_ID, .rev_id_reg = MAX310X_REVID_REG, - .power = max310x_power, + .power_reg = MAX310X_MODE1_REG, + .power_bit = MAX310X_MODE1_FORCESLEEP_BIT, .slave_addr = { .min = 0x2c, .max = 0x2f, @@ -413,7 +407,8 @@ static const struct max310x_devtype max3108_devtype = { .mode1 = MAX310X_MODE1_AUTOSLEEP_BIT, .rev_id_val = 0, /* Unsupported. */ .rev_id_reg = 0, /* Irrelevant when rev_id_val is not defined. */ - .power = max310x_power, + .power_reg = MAX310X_MODE1_REG, + .power_bit = MAX310X_MODE1_FORCESLEEP_BIT, .slave_addr = { .min = 0x60, .max = 0x6f, @@ -426,7 +421,8 @@ static const struct max310x_devtype max3109_devtype = { .mode1 = MAX310X_MODE1_AUTOSLEEP_BIT, .rev_id_val = MAX3109_REV_ID, .rev_id_reg = MAX310X_REVID_EXTREG, - .power = max310x_power, + .power_reg = MAX310X_MODE1_REG, + .power_bit = MAX310X_MODE1_FORCESLEEP_BIT, .slave_addr = { .min = 0x60, .max = 0x6f, @@ -439,7 +435,8 @@ static const struct max310x_devtype max14830_devtype = { .mode1 = MAX310X_MODE1_IRQSEL_BIT, .rev_id_val = MAX14830_REV_ID, .rev_id_reg = MAX310X_REVID_EXTREG, - .power = max14830_power, + .power_reg = MAX310X_BRGCFG_REG, + .power_bit = MAX14830_BRGCFG_CLKDIS_BIT, .slave_addr = { .min = 0x60, .max = 0x6f, @@ -1025,10 +1022,9 @@ static int max310x_rs485_config(struct uart_port *port, struct ktermios *termios static int max310x_startup(struct uart_port *port) { - struct max310x_port *s = dev_get_drvdata(port->dev); unsigned int val; - s->devtype->power(port, 1); + max310x_power(port, 1); /* Configure MODE1 register */ max310x_port_update(port, MAX310X_MODE1_REG, @@ -1073,12 +1069,10 @@ static int max310x_startup(struct uart_port *port) static void max310x_shutdown(struct uart_port *port) { - struct max310x_port *s = dev_get_drvdata(port->dev); - /* Disable all interrupts */ max310x_port_write(port, MAX310X_IRQEN_REG, 0); - s->devtype->power(port, 0); + max310x_power(port, 0); } static const char *max310x_type(struct uart_port *port) @@ -1140,7 +1134,7 @@ static int __maybe_unused max310x_suspend(struct device *dev) for (i = 0; i < s->devtype->nr; i++) { uart_suspend_port(&max310x_uart, &s->p[i].port); - s->devtype->power(&s->p[i].port, 0); + max310x_power(&s->p[i].port, 0); } return 0; @@ -1152,7 +1146,7 @@ static int __maybe_unused max310x_resume(struct device *dev) int i; for (i = 0; i < s->devtype->nr; i++) { - s->devtype->power(&s->p[i].port, 1); + max310x_power(&s->p[i].port, 1); uart_resume_port(&max310x_uart, &s->p[i].port); } @@ -1367,7 +1361,7 @@ static int max310x_probe(struct device *dev, const struct max310x_devtype *devty set_bit(line, max310x_lines); /* Go to suspend mode */ - devtype->power(&s->p[i].port, 0); + max310x_power(&s->p[i].port, 0); } #ifdef CONFIG_GPIOLIB @@ -1421,7 +1415,7 @@ static void max310x_remove(struct device *dev) if (test_and_clear_bit(s->p[i].port.line, max310x_lines)) uart_remove_one_port(&max310x_uart, &s->p[i].port); - s->devtype->power(&s->p[i].port, 0); + max310x_power(&s->p[i].port, 0); } clk_disable_unprepare(s->clk); |