[PATCH v1 08/15] remoteproc: mediatek: Add SCP core 1 interrupt support
From: Tinghan Shen <hidden>
Date: 2022-06-01 11:23:41
Also in:
chrome-platform, linux-devicetree, linux-mediatek, linux-remoteproc, lkml
Subsystem:
remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
Reuse the interrupt handling API of SCP core 0 on SCP core 1. Signed-off-by: Tinghan Shen <redacted> --- drivers/remoteproc/mtk_common.h | 1 + drivers/remoteproc/mtk_scp.c | 3 ++- drivers/remoteproc/mtk_scp_dual.c | 17 +++++++++++++++++ 3 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/mtk_common.h b/drivers/remoteproc/mtk_common.h
index da3ea2243678..04f7ee590f96 100644
--- a/drivers/remoteproc/mtk_common.h
+++ b/drivers/remoteproc/mtk_common.h@@ -170,4 +170,5 @@ void *scp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem); int scp_parse_fw(struct rproc *rproc, const struct firmware *fw); int scp_map_memory_region(struct mtk_scp *scp); void scp_unmap_memory_region(struct mtk_scp *scp); +irqreturn_t scp_irq_handler(int irq, void *priv); #endif
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 75d161da0f59..c67883c28a43 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c@@ -237,7 +237,7 @@ static void mt8195_scp_irq_handler(struct mtk_scp *scp) } } -static irqreturn_t scp_irq_handler(int irq, void *priv) +irqreturn_t scp_irq_handler(int irq, void *priv) { struct mtk_scp *scp = priv; int ret;
@@ -254,6 +254,7 @@ static irqreturn_t scp_irq_handler(int irq, void *priv) return IRQ_HANDLED; } +EXPORT_SYMBOL_GPL(scp_irq_handler); static int scp_elf_load_segments(struct rproc *rproc, const struct firmware *fw) {
diff --git a/drivers/remoteproc/mtk_scp_dual.c b/drivers/remoteproc/mtk_scp_dual.c
index 0f932d26f864..7bed39722bd5 100644
--- a/drivers/remoteproc/mtk_scp_dual.c
+++ b/drivers/remoteproc/mtk_scp_dual.c@@ -71,7 +71,24 @@ static int scp_dual_probe(struct platform_device *pdev) init_waitqueue_head(&scp->run.wq); init_waitqueue_head(&scp->ack_wq); + ret = devm_request_threaded_irq(dev, platform_get_irq(pdev, 0), NULL, + scp_irq_handler, IRQF_ONESHOT, + pdev->name, scp); + + if (ret) { + dev_err(dev, "failed to request irq\n"); + goto release_dev_mem; + } + return 0; + +release_dev_mem: + scp_unmap_memory_region(scp); + for (i = 0; i < SCP_IPI_MAX; i++) + mutex_destroy(&scp->ipi_desc[i].lock); + mutex_destroy(&scp->send_lock); + + return ret; } static int scp_dual_remove(struct platform_device *pdev)
--
2.18.0
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