drivers: dac: stm32: add support for pinmux
Add support for DT based pinmux configurations. Signed-off-by: Martin Jäger <martin@libre.solar>
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51e7da292a
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2 changed files with 28 additions and 1 deletions
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@ -19,6 +19,7 @@
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LOG_MODULE_REGISTER(dac_stm32);
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#include <drivers/clock_control/stm32_clock_control.h>
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#include <pinmux/stm32/pinmux_stm32.h>
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/* some low-end MCUs have DAC with only one channel */
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#ifdef LL_DAC_CHANNEL_2
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@ -40,8 +41,14 @@ static const uint32_t table_channels[] = {
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/* Read-only driver configuration */
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struct dac_stm32_cfg {
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/* DAC instance. */
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DAC_TypeDef *base;
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/* Clock configuration. */
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struct stm32_pclken pclken;
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/* pinctrl configurations. */
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const struct soc_gpio_pinctrl *pinctrl;
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/* Number of pinctrl configurations. */
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size_t pinctrl_len;
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};
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/* Runtime driver data */
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@ -120,6 +127,11 @@ static int dac_stm32_init(const struct device *dev)
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return -EIO;
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}
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/* configure pinmux */
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if (cfg->pinctrl_len != 0U) {
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stm32_dt_pinctrl_configure(cfg->pinctrl, cfg->pinctrl_len);
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}
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return 0;
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}
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@ -131,13 +143,19 @@ static const struct dac_driver_api api_stm32_driver_api = {
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#define STM32_DAC_INIT(index) \
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\
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static const struct soc_gpio_pinctrl dac_pins_##index[] = \
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ST_STM32_DT_INST_PINCTRL(index, 0); \
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\
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static const struct dac_stm32_cfg dac_stm32_cfg_##index = { \
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.base = (DAC_TypeDef *)DT_INST_REG_ADDR(index), \
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.base = (DAC_TypeDef *)DT_INST_REG_ADDR(index), \
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.pclken = { \
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.enr = DT_INST_CLOCKS_CELL(index, bits), \
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.bus = DT_INST_CLOCKS_CELL(index, bus), \
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}, \
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.pinctrl = dac_pins_##index, \
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.pinctrl_len = ARRAY_SIZE(dac_pins_##index), \
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}; \
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\
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static struct dac_stm32_data dac_stm32_data_##index = { \
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.channel_count = STM32_CHANNEL_COUNT \
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}; \
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@ -14,6 +14,15 @@ properties:
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clocks:
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required: true
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pinctrl-0:
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type: phandles
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required: false
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description: |
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GPIO pin configuration for DAC output. The phandles are
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expected to reference pinctrl nodes, e.g.
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pinctrl-0 = <&dac_out1_pa4 &dac_out2_pa5>;
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"#io-channel-cells":
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const: 1
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