Lines Matching defs:scp
23 * @scp: mtk_scp structure
32 int scp_ipi_register(struct mtk_scp *scp,
37 if (!scp)
43 scp_ipi_lock(scp, id);
44 scp->ipi_desc[id].handler = handler;
45 scp->ipi_desc[id].priv = priv;
46 scp_ipi_unlock(scp, id);
55 * @scp: mtk_scp structure
60 void scp_ipi_unregister(struct mtk_scp *scp, u32 id)
62 if (!scp)
68 scp_ipi_lock(scp, id);
69 scp->ipi_desc[id].handler = NULL;
70 scp->ipi_desc[id].priv = NULL;
71 scp_ipi_unlock(scp, id);
114 * @scp: mtk_scp structure
119 void scp_ipi_lock(struct mtk_scp *scp, u32 id)
123 mutex_lock(&scp->ipi_desc[id].lock);
130 * @scp: mtk_scp structure
135 void scp_ipi_unlock(struct mtk_scp *scp, u32 id)
139 mutex_unlock(&scp->ipi_desc[id].lock);
144 * scp_ipi_send() - send data from AP to scp.
146 * @scp: mtk_scp structure
159 int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len,
162 struct mtk_share_obj __iomem *send_obj = scp->send_buf;
171 ret = clk_prepare_enable(scp->clk);
173 dev_err(scp->dev, "failed to enable clock\n");
177 mutex_lock(&scp->send_lock);
180 ret = readl_poll_timeout_atomic(scp->reg_base + scp->data->host_to_scp_reg,
183 dev_err(scp->dev, "%s: IPI timeout!\n", __func__);
192 scp->ipi_id_ack[id] = false;
194 writel(scp->data->host_to_scp_int_bit,
195 scp->reg_base + scp->data->host_to_scp_reg);
199 ret = wait_event_timeout(scp->ack_wq,
200 scp->ipi_id_ack[id],
202 scp->ipi_id_ack[id] = false;
203 if (WARN(!ret, "scp ipi %d ack time out !", id))
210 mutex_unlock(&scp->send_lock);
211 clk_disable_unprepare(scp->clk);
218 MODULE_DESCRIPTION("MediaTek scp IPI interface");