Commit ca371d68 authored Mar 30, 2020 by Venkataramana Kotakonda Committed by Henrik Brix Andersen Feb 19, 2024

drivers: espi: Clear virtual wire interrupt before calling handler

Clearing virtual wire interrupt after calling handler may cause next
interrupt miss if the same virtual wire changes due to action in handler.
As the interrupt source is read from register, it can be cleared before
calling handler to avoid next interrupt miss due to action/delay in the
callback handler.

Signed-off-by: Venkataramana Kotakonda <venkataramana.kotakonda@intel.com>

parent 79d5857e

drivers/espi/espi_mchp_xec.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -1365,6 +1365,7 @@ static void espi_xec_vw_isr(const struct device *dev)
		uint32_t girq_result;

		girq_result = MCHP_GIRQ_RESULT(config->vw_girq_ids[0]);
		MCHP_GIRQ_SRC(config->vw_girq_ids[0]) = girq_result;

		for (int i = 0; i < m2s_vwires_isr_cnt; i++) {
		struct espi_isr entry = m2s_vwires_isr[i];
		@@ -1375,8 +1376,6 @@ static void espi_xec_vw_isr(const struct device *dev)
		}
		}
		}

		REG32(MCHP_GIRQ_SRC_ADDR(config->vw_girq_ids[0])) = girq_result;
		}

		#if DT_INST_PROP_HAS_IDX(0, vw_girqs, 1)

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