arch/arm/boot/dts/ti/omap/omap4-mcpdm.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap4-mcpdm.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap4-mcpdm.dtsi
Extension
.dtsi
Size
1123 bytes
Lines
45
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Common omap4 mcpdm configuration
 *
 * Only include this file if your board has pdmclk wired from the
 * pmic to ABE as mcpdm uses an external clock for the module.
 */

&omap4_pmx_core {
	mcpdm_pins: mcpdm-pins {
		pinctrl-single,pins = <
		/* 0x4a100106 abe_pdm_ul_data.abe_pdm_ul_data ag25 */
		OMAP4_IOPAD(0x106, PIN_INPUT_PULLDOWN | MUX_MODE0)

		/* 0x4a100108 abe_pdm_dl_data.abe_pdm_dl_data af25 */
		OMAP4_IOPAD(0x108, PIN_INPUT_PULLDOWN | MUX_MODE0)

		/* 0x4a10010a abe_pdm_frame.abe_pdm_frame ae25 */
		OMAP4_IOPAD(0x10a, PIN_INPUT_PULLUP   | MUX_MODE0)

		/* 0x4a10010c abe_pdm_lb_clk.abe_pdm_lb_clk af26 */
		OMAP4_IOPAD(0x10c, PIN_INPUT_PULLDOWN | MUX_MODE0)

		/* 0x4a10010e abe_clks.abe_clks ah26 */
		OMAP4_IOPAD(0x10e, PIN_INPUT_PULLDOWN | MUX_MODE0)
		>;
	};
};

&mcpdm_module {
	/*
	 * McPDM pads must be muxed at the interconnect target module
	 * level as the module on the SoC needs external clock from
	 * the PMIC
	 */
	pinctrl-names = "default";
	pinctrl-0 = <&mcpdm_pins>;
	status = "okay";
};

&mcpdm {
	clocks = <&twl6040>;
	clock-names = "pdmclk";
};

Annotation

Implementation Notes