drivers: serial: RCar add pinctrl support
Get pin configuration from device tree to set alternate pin function. Signed-off-by: Aymeric Aillet <aymeric.aillet@iot.bzh>
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2 changed files with 11 additions and 1 deletions
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@ -12,6 +12,7 @@
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#include <drivers/uart.h>
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#include <drivers/clock_control.h>
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#include <drivers/clock_control/rcar_clock_control.h>
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#include <drivers/pinctrl.h>
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#include <spinlock.h>
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struct uart_rcar_cfg {
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@ -19,6 +20,7 @@ struct uart_rcar_cfg {
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const struct device *clock_dev;
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struct rcar_cpg_clk mod_clk;
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struct rcar_cpg_clk bus_clk;
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const struct pinctrl_dev_config *pcfg;
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN
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void (*irq_config_func)(const struct device *dev);
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#endif
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@ -271,6 +273,12 @@ static int uart_rcar_init(const struct device *dev)
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struct uart_rcar_data *data = DEV_UART_DATA(dev);
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int ret;
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/* Configure dt provided device signals when available */
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ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);
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if (ret < 0) {
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return ret;
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}
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ret = clock_control_on(config->clock_dev,
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(clock_control_subsys_t *)&config->mod_clk);
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if (ret < 0) {
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@ -527,6 +535,7 @@ static const struct uart_driver_api uart_rcar_driver_api = {
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/* Device Instantiation */
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#define UART_RCAR_DECLARE_CFG(n, IRQ_FUNC_INIT) \
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PINCTRL_DT_INST_DEFINE(n); \
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static const struct uart_rcar_cfg uart_rcar_cfg_##n = { \
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.reg_addr = DT_INST_REG_ADDR(n), \
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.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)), \
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@ -538,6 +547,7 @@ static const struct uart_driver_api uart_rcar_driver_api = {
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DT_INST_CLOCKS_CELL_BY_IDX(n, 1, module), \
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.bus_clk.domain = \
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DT_INST_CLOCKS_CELL_BY_IDX(n, 1, domain), \
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.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
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IRQ_FUNC_INIT \
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}
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@ -5,7 +5,7 @@ description: Renesas R-Car UART controller
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compatible: "renesas,rcar-scif"
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include: uart-controller.yaml
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include: [uart-controller.yaml, pinctrl-device.yaml]
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properties:
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reg:
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