drivers/reset/reset-ti-sci.c

3  * Texas Instrument's System Control Interface (TI-SCI) reset driver
14 #include <linux/reset-controller.h>
18  * struct ti_sci_reset_control - reset control structure
20  * @reset_mask: reset mask to use for toggling reset
30  * struct ti_sci_reset_data - reset controller information structure
31  * @rcdev: reset controller entity
32  * @dev: reset controller device pointer
34  * @idr: idr structure for mapping ids to reset control structures
47  * ti_sci_reset_set() - program a device's reset
48  * @rcdev: reset controller entity
49  * @id: ID of the reset to toggle
53  * reset using the TI SCI protocol. The device's reset is asserted if the
56  * reset register is read using a TI SCI device operation, the new value is
57  * set or un-set using the reset's mask, and the new reset value written by
95  * ti_sci_reset_assert() - assert device reset
96  * @rcdev: reset controller entity
97  * @id: ID of the reset to be asserted
99  * This function implements the reset driver op to assert a device's reset
102  * argument set to true for asserting the reset.
113  * ti_sci_reset_deassert() - deassert device reset
114  * @rcdev: reset controller entity
115  * @id: ID of the reset to be deasserted
117  * This function implements the reset driver op to deassert a device's reset
120  * argument set to false for deasserting the reset.
131  * ti_sci_reset_status() - check device reset status
132  * @rcdev: reset controller entity
133  * @id: ID of reset to be checked
135  * This function implements the reset driver op to return the status of a
136  * device's reset using the TI SCI protocol. The reset register value is read
138  * status of the specific reset is extracted and returned using this reset's
139  * reset mask.
141  * Return: 0 if reset is deasserted, or a non-zero value if reset is asserted
171  * ti_sci_reset_of_xlate() - translate a set of OF arguments to a reset ID
172  * @rcdev: reset controller entity
173  * @reset_spec: OF reset argument specifier
175  * This function performs the translation of the reset argument specifier
176  * values defined in a reset consumer device node. The function allocates a
177  * reset control structure for that device reset, and will be used by the
178  * driver for performing any reset functions on that reset. An idr structure
179  * is allocated and used to map to the reset control structure. This idr
180  * is used by the driver to do reset lookups.
205 	{ .compatible = "ti,sci-reset", },
251 		.name = "ti-sci-reset",
258 MODULE_DESCRIPTION("TI System Control Interface (TI SCI) Reset driver");