Implement the rst_reset operation in the ZynqMP reset driver to use PM_RESET_ACTION_PULSE. This allows the reset controller to perform a reset pulse in a single firmware call instead of separate assert and deassert calls.
This matches the Linux kernel implementation of zynqmp_reset_reset(). Signed-off-by: Michal Simek <[email protected]> Reviewed-by: Simon Glass <[email protected]> --- (no changes since v1) drivers/reset/reset-zynqmp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/reset/reset-zynqmp.c b/drivers/reset/reset-zynqmp.c index d04e8eef3bb4..2b58f3a75b42 100644 --- a/drivers/reset/reset-zynqmp.c +++ b/drivers/reset/reset-zynqmp.c @@ -45,6 +45,16 @@ static int zynqmp_reset_deassert(struct reset_ctl *rst) PM_RESET_ACTION_RELEASE); } +static int zynqmp_reset_reset(struct reset_ctl *rst, ulong delay_us) +{ + struct zynqmp_reset_priv *priv = dev_get_priv(rst->dev); + + dev_dbg(rst->dev, "%s(rst=%p) (id=%lu)\n", __func__, rst, rst->id); + + return zynqmp_pm_reset_assert(priv->reset_id + rst->id, + PM_RESET_ACTION_PULSE); +} + static int zynqmp_reset_request(struct reset_ctl *rst) { struct zynqmp_reset_priv *priv = dev_get_priv(rst->dev); @@ -74,6 +84,7 @@ const struct reset_ops zynqmp_reset_ops = { .request = zynqmp_reset_request, .rst_assert = zynqmp_reset_assert, .rst_deassert = zynqmp_reset_deassert, + .rst_reset = zynqmp_reset_reset, }; static const struct udevice_id zynqmp_reset_ids[] = { -- 2.43.0
