diff options
Diffstat (limited to 'include/soc')
| -rw-r--r-- | include/soc/bcm2835/raspberrypi-firmware.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h index 9b1db12d013f..ab955591cb72 100644 --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -155,12 +155,32 @@ enum rpi_firmware_clk_id { RPI_FIRMWARE_NUM_CLK_ID, }; +/** + * struct rpi_firmware_clk_rate_request - Firmware Request for a rate + * @id: ID of the clock being queried + * @rate: Rate in Hertz. Set by the firmware. + * + * Used by @RPI_FIRMWARE_GET_CLOCK_RATE, @RPI_FIRMWARE_GET_CLOCK_MEASURED, + * @RPI_FIRMWARE_GET_MAX_CLOCK_RATE and @RPI_FIRMWARE_GET_MIN_CLOCK_RATE. + */ +struct rpi_firmware_clk_rate_request { + __le32 id; + __le32 rate; +} __packed; + +#define RPI_FIRMWARE_CLK_RATE_REQUEST(_id) \ + { \ + .id = _id, \ + } + #if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE) int rpi_firmware_property(struct rpi_firmware *fw, u32 tag, void *data, size_t len); int rpi_firmware_property_list(struct rpi_firmware *fw, void *data, size_t tag_size); void rpi_firmware_put(struct rpi_firmware *fw); +unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id); struct device_node *rpi_firmware_find_node(void); struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node); struct rpi_firmware *devm_rpi_firmware_get(struct device *dev, @@ -180,6 +200,12 @@ static inline int rpi_firmware_property_list(struct rpi_firmware *fw, static inline void rpi_firmware_put(struct rpi_firmware *fw) { } +static inline unsigned int rpi_firmware_clk_get_max_rate(struct rpi_firmware *fw, + unsigned int id) +{ + return UINT_MAX; +} + static inline struct device_node *rpi_firmware_find_node(void) { return NULL; |