diff options
Diffstat (limited to 'drivers/firmware/xilinx')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 9a1c72a9280f..70b50377ae5f 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -469,6 +469,44 @@ static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, arg1, arg2, out); } +/** + * zynqmp_pm_reset_assert - Request setting of reset (1 - assert, 0 - release) + * @reset: Reset to be configured + * @assert_flag: Flag stating should reset be asserted (1) or + * released (0) + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_reset_assert(const enum zynqmp_pm_reset reset, + const enum zynqmp_pm_reset_action assert_flag) +{ + return zynqmp_pm_invoke_fn(PM_RESET_ASSERT, reset, assert_flag, + 0, 0, NULL); +} + +/** + * zynqmp_pm_reset_get_status - Get status of the reset + * @reset: Reset whose status should be returned + * @status: Returned status + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, + u32 *status) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!status) + return -EINVAL; + + ret = zynqmp_pm_invoke_fn(PM_RESET_GET_STATUS, reset, 0, + 0, 0, ret_payload); + *status = ret_payload[1]; + + return ret; +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .query_data = zynqmp_pm_query_data, @@ -482,6 +520,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .clock_setparent = zynqmp_pm_clock_setparent, .clock_getparent = zynqmp_pm_clock_getparent, .ioctl = zynqmp_pm_ioctl, + .reset_assert = zynqmp_pm_reset_assert, + .reset_get_status = zynqmp_pm_reset_get_status, }; /** |