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sc16is7xx: Separate GPIOs from modem control lines

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Export only the GPIOs that are not shared with hardware modem control
lines. Introduce new device parameter indicating whether modem control
lines are available.

Signed-off-by: Lech Perczak <l.perczak@camlintechnologies.com>
Signed-off-by: Tomasz Moń <tomasz.mon@camlingroup.com>
Link: https://lore.kernel.org/r/20220221105618.3503470-4-tomasz.mon@camlingroup.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lech Perczak 2022-02-21 11:56:15 +01:00 • committed by Greg Kroah-Hartman
parent 6cca8f154a
commit 679875d1d8
1 changed files with 10 additions and 4 deletions
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14
drivers/tty/serial/sc16is7xx.c
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@ -306,6 +306,7 @@ struct sc16is7xx_devtype {
char name[10];
int nr_gpio;
int nr_uart;
int has_mctrl;
};
#define SC16IS7XX_RECONF_MD (1 << 0)
@ -440,30 +441,35 @@ static const struct sc16is7xx_devtype sc16is74x_devtype = {
.name = "SC16IS74X",
.nr_gpio = 0,
.nr_uart = 1,
.has_mctrl = 0,
};
static const struct sc16is7xx_devtype sc16is750_devtype = {
.name = "SC16IS750",
.nr_gpio = 8,
.nr_gpio = 4,
.nr_uart = 1,
.has_mctrl = 1,
};
static const struct sc16is7xx_devtype sc16is752_devtype = {
.name = "SC16IS752",
.nr_gpio = 8,
.nr_gpio = 0,
.nr_uart = 2,
.has_mctrl = 1,
};
static const struct sc16is7xx_devtype sc16is760_devtype = {
.name = "SC16IS760",
.nr_gpio = 8,
.nr_gpio = 4,
.nr_uart = 1,
.has_mctrl = 1,
};
static const struct sc16is7xx_devtype sc16is762_devtype = {
.name = "SC16IS762",
.nr_gpio = 8,
.nr_gpio = 0,
.nr_uart = 2,
.has_mctrl = 1,
};
static bool sc16is7xx_regmap_volatile(struct device *dev, unsigned int reg)