diff options
| author | Fabio Estevam <festevam@gmail.com> | 2021-01-18 12:21:53 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-20 18:48:19 +0100 |
| commit | 08fdc69945603355d24ef4adc811d2e368adbb56 (patch) | |
| tree | f625c7a00bacb0f6c6df587b1da6caa980069b48 /drivers/tty | |
| parent | e8372c4f51d01c3db3d067ee8d62d24368606262 (diff) | |
serial: mxs-auart: Remove serial_mxs_probe_dt()
The mxs platform is devicetree-only, so there is no need to check
whether it was instantiated via devicetree.
Simplify the code my removing serial_mxs_probe_dt() and add its
content into the main probe function.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210118152154.1644569-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/mxs-auart.c | 43 |
1 files changed, 11 insertions, 32 deletions
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 8ecf622602cb..01fedb41cf93 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -1535,34 +1535,6 @@ disable_clk_ahb: return err; } -/* - * This function returns 1 if pdev isn't a device instatiated by dt, 0 if it - * could successfully get all information from dt or a negative errno. - */ -static int serial_mxs_probe_dt(struct mxs_auart_port *s, - struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - int ret; - - if (!np) - /* no device tree device */ - return 1; - - ret = of_alias_get_id(np, "serial"); - if (ret < 0) { - dev_err(&pdev->dev, "failed to get alias id: %d\n", ret); - return ret; - } - s->port.line = ret; - - if (of_get_property(np, "uart-has-rtscts", NULL) || - of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */) - set_bit(MXS_AUART_RTSCTS, &s->flags); - - return 0; -} - static int mxs_auart_init_gpios(struct mxs_auart_port *s, struct device *dev) { enum mctrl_gpio_idx i; @@ -1631,6 +1603,7 @@ static int mxs_auart_request_gpio_irq(struct mxs_auart_port *s) static int mxs_auart_probe(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; struct mxs_auart_port *s; u32 version; int ret, irq; @@ -1643,11 +1616,17 @@ static int mxs_auart_probe(struct platform_device *pdev) s->port.dev = &pdev->dev; s->dev = &pdev->dev; - ret = serial_mxs_probe_dt(s, pdev); - if (ret > 0) - s->port.line = pdev->id < 0 ? 0 : pdev->id; - else if (ret < 0) + ret = of_alias_get_id(np, "serial"); + if (ret < 0) { + dev_err(&pdev->dev, "failed to get alias id: %d\n", ret); return ret; + } + s->port.line = ret; + + if (of_get_property(np, "uart-has-rtscts", NULL) || + of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */) + set_bit(MXS_AUART_RTSCTS, &s->flags); + if (s->port.line >= ARRAY_SIZE(auart_port)) { dev_err(&pdev->dev, "serial%d out of range\n", s->port.line); return -EINVAL; |