lipengfei28 commented on code in PR #16798:
URL: https://github.com/apache/nuttx/pull/16798#discussion_r2265558884
##########
arch/arm64/src/imx9/imx9_iomuxc.c:
##########
@@ -51,8 +55,89 @@
*
****************************************************************************/
+#ifdef CONFIG_IMX9_IOMUX_OVER_SCMI
+
+/* Sets the IOMUXC pin mux mode.
+ */
+
+void imx9_sm_iomucx_configure(scmi_pinctrl_t *sm_pinctrl)
+{
+ scmi_pin_config_t configs[4];
+ uint32_t num_configs = 0;
+ uint32_t channel = sm_pinctrl->channel;
+ uint32_t mux_register = sm_pinctrl->mux_register;
+ uint32_t mux_mode = sm_pinctrl->mux_mode;
+ uint32_t input_register = sm_pinctrl->input_register;
+ uint32_t input_daisy = sm_pinctrl->input_daisy;
+ uint32_t input_on_field = sm_pinctrl->input_on_field;
+ uint32_t config_register = sm_pinctrl->config_register;
+ uint32_t config_value = sm_pinctrl->config_value;
+
+ if (mux_register)
+ {
+ configs[num_configs].type = SCMI_PINCTRL_TYPE_MUX;
+ configs[num_configs].value = SCMI_PLATFORM_PINCTRL_MUX_MODE(mux_mode)
+ | SCMI_PLATFORM_PINCTRL_SION(
+ input_on_field);
+ num_configs++;
+ }
+
+ if (input_register & 0xffff)
+ {
+ configs[num_configs].type = SCMI_PINCTRL_TYPE_DAISY_ID;
+ configs[num_configs].value =
+ (input_register - SCMI_PLATFORM_PINCTRL_DAISYREG_OFF) / 4;
+ num_configs++;
+ configs[num_configs].type = SCMI_PINCTRL_TYPE_DAISY_CFG;
+ configs[num_configs].value = input_daisy;
+ num_configs++;
+ }
+
+ if (config_register)
+ {
+ configs[num_configs].type = SCMI_PINCTRL_TYPE_CONFIG;
+ configs[num_configs].value = config_value;
+ num_configs++;
+ }
+
+ if (mux_register || input_register)
+ {
+ uint32_t attributes = SCMI_PINCTRL_SET_ATTR_SELECTOR(
+ SCMI_PINCTRL_SEL_PIN)
+ | SCMI_PINCTRL_SET_ATTR_NUM_CONFIGS(
+ num_configs);
+
+ int32_t ret = imx9_scmi_set_pinctrl_config(
+ channel, (mux_register - SCMI_PLATFORM_PINCTRL_MUXREG_OFF) / 4,
+ attributes, configs);
+ if (ret != 0)
+ {
+ assert("Unable to set iomux over SCMI");
+ }
+ }
+}
+
+#endif
+
int imx9_iomux_configure(iomux_cfg_t cfg)
{
+#ifdef CONFIG_IMX9_IOMUX_OVER_SCMI
+ scmi_pinctrl_t sm_pinctrl =
Review Comment:
done
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