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drivers: espi: xec: mec172x: Handle eSPI bus host enable

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Add eSPI bus host enable/disable events from eSPI host.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
This commit is contained in:
Jose Alberto Meza 2022-03-17 13:15:51 -07:00 • committed by Carles Cufí
commit 33fde4b10a
1 changed files with 14 additions and 0 deletions
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14
drivers/espi/espi_mchp_xec_v2.c
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@ -851,6 +851,10 @@ static void espi_pc_isr(const struct device *dev)
{ {
struct espi_iom_regs *regs = ESPI_XEC_REG_BASE(dev); struct espi_iom_regs *regs = ESPI_XEC_REG_BASE(dev);
uint32_t status = regs->PCSTS; uint32_t status = regs->PCSTS;
struct espi_event evt = { .evt_type = ESPI_BUS_EVENT_CHANNEL_READY,
.evt_details = ESPI_CHANNEL_PERIPHERAL,
.evt_data = 0 };
struct espi_xec_data *data = (struct espi_xec_data *)(dev->data);
LOG_DBG("%s %x", __func__, status); LOG_DBG("%s %x", __func__, status);
if (status & MCHP_ESPI_PC_STS_BUS_ERR) { if (status & MCHP_ESPI_PC_STS_BUS_ERR) {
@ -866,6 +870,16 @@ static void espi_pc_isr(const struct device *dev)
regs->PCSTS = MCHP_ESPI_PC_STS_EN_CHG; regs->PCSTS = MCHP_ESPI_PC_STS_EN_CHG;
} }
if (status & MCHP_ESPI_PC_STS_BM_EN_CHG) {
if (status & MCHP_ESPI_PC_STS_BM_EN) {
evt.evt_data = ESPI_PC_EVT_BUS_MASTER_ENABLE;
LOG_WRN("%s BM change %x", __func__, status);
espi_send_callbacks(&data->callbacks, dev, evt);
}
regs->PCSTS = MCHP_ESPI_PC_STS_BM_EN_CHG;
}
xec_espi_bus_intr_clr(dev, pc_girq_idx); xec_espi_bus_intr_clr(dev, pc_girq_idx);
} }