1 // SPDX-License-Identifier: GPL-2.0
3 * Hantro VPU codec driver
5 * Copyright (C) 2021 Collabora Ltd, Andrzej Pietrasiewicz <andrzej.p@collabora.com>
9 #include "hantro_g2_regs.h"
11 void hantro_g2_check_idle(struct hantro_dev *vpu)
15 for (i = 0; i < 3; i++) {
18 /* Make sure the VPU is idle */
19 status = vdpu_read(vpu, G2_REG_INTERRUPT);
20 if (status & G2_REG_INTERRUPT_DEC_E) {
21 dev_warn(vpu->dev, "device still running, aborting");
22 status |= G2_REG_INTERRUPT_DEC_ABORT_E | G2_REG_INTERRUPT_DEC_IRQ_DIS;
23 vdpu_write(vpu, status, G2_REG_INTERRUPT);
28 irqreturn_t hantro_g2_irq(int irq, void *dev_id)
30 struct hantro_dev *vpu = dev_id;
31 enum vb2_buffer_state state;
34 status = vdpu_read(vpu, G2_REG_INTERRUPT);
35 state = (status & G2_REG_INTERRUPT_DEC_RDY_INT) ?
36 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
38 vdpu_write(vpu, 0, G2_REG_INTERRUPT);
39 vdpu_write(vpu, G2_REG_CONFIG_DEC_CLK_GATE_E, G2_REG_CONFIG);
41 hantro_irq_done(vpu, state);