[PATCH v3 14/17] media: rzg2l-cru: Add IRQ handler to OF data
From: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Date: 2025-02-26 15:27:16
Also in:
linux-media, linux-renesas-soc, lkml
Subsystem:
media input infrastructure (v4l/dvb), renesas rz/g2l / rz/v2h(p) cru, the rest · Maintainers:
Mauro Carvalho Chehab, Lad Prabhakar, Jacopo Mondi, Linus Torvalds
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Add `irq_handler` to the `rzg2l_cru_info` structure and pass it as part of the OF data. This prepares for supporting RZ/G3E and RZ/V2H(P) SoCs, which require a different IRQ handler. Update the IRQ request code to use the handler from the OF data. Add `enable_interrupts` and `disable_interrupts` function pointers to the `rzg2l_cru_info` structure and pass them as part of the OF data. This prepares for supporting RZ/G3E and RZ/V2H(P) SoCs, which require different interrupt configurations. Implement `rzg2l_cru_enable_interrupts()` and `rzg2l_cru_disable_interrupts()` functions and update the code to use them instead of directly writing to interrupt registers. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> --- Changes since v2: - Squashed patch 15 and 14 - Collected tag .../platform/renesas/rzg2l-cru/rzg2l-core.c | 5 ++++- .../platform/renesas/rzg2l-cru/rzg2l-cru.h | 8 ++++++++ .../platform/renesas/rzg2l-cru/rzg2l-video.c | 19 ++++++++++++++----- 3 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index 7e94ae803967..302f792cb415 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c@@ -278,7 +278,7 @@ static int rzg2l_cru_probe(struct platform_device *pdev) if (irq < 0) return irq; - ret = devm_request_irq(dev, irq, rzg2l_cru_irq, 0, + ret = devm_request_irq(dev, irq, cru->info->irq_handler, 0, KBUILD_MODNAME, cru); if (ret) return dev_err_probe(dev, ret, "failed to request irq\n");
@@ -359,6 +359,9 @@ static const struct rzg2l_cru_info rzgl2_cru_info = { .max_height = 4095, .image_conv = ICnMC, .regs = rzg2l_cru_regs, + .irq_handler = rzg2l_cru_irq, + .enable_interrupts = rzg2l_cru_enable_interrupts, + .disable_interrupts = rzg2l_cru_disable_interrupts, }; static const struct of_device_id rzg2l_cru_of_id_table[] = {
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
index ca156772b949..3f694044d8cd 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h@@ -34,6 +34,8 @@ enum rzg2l_csi2_pads { RZG2L_CRU_IP_SOURCE, }; +struct rzg2l_cru_dev; + /** * enum rzg2l_cru_dma_state - DMA states * @RZG2L_CRU_DMA_STOPPED: No operation in progress
@@ -83,6 +85,9 @@ struct rzg2l_cru_info { unsigned int max_height; u16 image_conv; const u16 *regs; + irqreturn_t (*irq_handler)(int irq, void *data); + void (*enable_interrupts)(struct rzg2l_cru_dev *cru); + void (*disable_interrupts)(struct rzg2l_cru_dev *cru); }; /**
@@ -177,4 +182,7 @@ const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code); const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format); const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index); +void rzg2l_cru_enable_interrupts(struct rzg2l_cru_dev *cru); +void rzg2l_cru_disable_interrupts(struct rzg2l_cru_dev *cru); + #endif
diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 5033c8d98639..8995aa254c17 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c@@ -300,8 +300,7 @@ void rzg2l_cru_stop_image_processing(struct rzg2l_cru_dev *cru) spin_lock_irqsave(&cru->qlock, flags); /* Disable and clear the interrupt */ - rzg2l_cru_write(cru, CRUnIE, 0); - rzg2l_cru_write(cru, CRUnINTS, 0x001F0F0F); + cru->info->disable_interrupts(cru); /* Stop the operation of image conversion */ rzg2l_cru_write(cru, ICnEN, 0);
@@ -393,6 +392,17 @@ static int rzg2l_cru_get_virtual_channel(struct rzg2l_cru_dev *cru) return fd.entry[0].bus.csi2.vc; } +void rzg2l_cru_enable_interrupts(struct rzg2l_cru_dev *cru) +{ + rzg2l_cru_write(cru, CRUnIE, CRUnIE_EFE); +} + +void rzg2l_cru_disable_interrupts(struct rzg2l_cru_dev *cru) +{ + rzg2l_cru_write(cru, CRUnIE, 0); + rzg2l_cru_write(cru, CRUnINTS, 0x001f000f); +} + int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru) { struct v4l2_mbus_framefmt *fmt = rzg2l_cru_ip_get_src_fmt(cru);
@@ -414,8 +424,7 @@ int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru) rzg2l_cru_write(cru, CRUnRST, CRUnRST_VRESETN); /* Disable and clear the interrupt before using */ - rzg2l_cru_write(cru, CRUnIE, 0); - rzg2l_cru_write(cru, CRUnINTS, 0x001f000f); + cru->info->disable_interrupts(cru); /* Initialize the AXI master */ rzg2l_cru_initialize_axi(cru);
@@ -428,7 +437,7 @@ int rzg2l_cru_start_image_processing(struct rzg2l_cru_dev *cru) } /* Enable interrupt */ - rzg2l_cru_write(cru, CRUnIE, CRUnIE_EFE); + cru->info->enable_interrupts(cru); /* Enable image processing reception */ rzg2l_cru_write(cru, ICnEN, ICnEN_ICEN);
--
2.43.0