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From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
To:     boris.brezillon@collabora.com
Cc:     robh@kernel.org, steven.price@arm.com,
        maarten.lankhorst@linux.intel.com, mripard@kernel.org,
        tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch,
        angelogioacchino.delregno@collabora.com,
        dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
        kernel@collabora.com, m.szyprowski@samsung.com,
        krzysztof.kozlowski@linaro.org
Subject: [PATCH v4 2/3] drm/panfrost: Add gpu_irq, mmu_irq to struct panfrost_device
Date:   Mon,  4 Dec 2023 12:42:14 +0100
Message-ID: <20231204114215.54575-3-angelogioacchino.delregno@collabora.com>
In-Reply-To: <20231204114215.54575-1-angelogioacchino.delregno@collabora.com>
References: <20231204114215.54575-1-angelogioacchino.delregno@collabora.com>
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In preparation for adding a IRQ synchronization mechanism for PM suspend,
add gpu_irq and mmu_irq variables to struct panfrost_device and change
functions panfrost_gpu_init() and panfrost_mmu_init() to use those.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/gpu/drm/panfrost/panfrost_device.h |  2 ++
 drivers/gpu/drm/panfrost/panfrost_gpu.c    | 10 +++++-----
 drivers/gpu/drm/panfrost/panfrost_mmu.c    | 10 +++++-----
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h
index 0fc558db6bfd..54a8aad54259 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.h
+++ b/drivers/gpu/drm/panfrost/panfrost_device.h
@@ -94,6 +94,8 @@ struct panfrost_device {
 	struct device *dev;
 	struct drm_device *ddev;
 	struct platform_device *pdev;
+	int gpu_irq;
+	int mmu_irq;
 
 	void __iomem *iomem;
 	struct clk *clock;
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c
index bd41617c5e4b..7adc4441fa14 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
@@ -454,7 +454,7 @@ void panfrost_gpu_power_off(struct panfrost_device *pfdev)
 
 int panfrost_gpu_init(struct panfrost_device *pfdev)
 {
-	int err, irq;
+	int err;
 
 	err = panfrost_gpu_soft_reset(pfdev);
 	if (err)
@@ -469,11 +469,11 @@ int panfrost_gpu_init(struct panfrost_device *pfdev)
 
 	dma_set_max_seg_size(pfdev->dev, UINT_MAX);
 
-	irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");
-	if (irq < 0)
-		return irq;
+	pfdev->gpu_irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu");
+	if (pfdev->gpu_irq < 0)
+		return pfdev->gpu_irq;
 
-	err = devm_request_irq(pfdev->dev, irq, panfrost_gpu_irq_handler,
+	err = devm_request_irq(pfdev->dev, pfdev->gpu_irq, panfrost_gpu_irq_handler,
 			       IRQF_SHARED, KBUILD_MODNAME "-gpu", pfdev);
 	if (err) {
 		dev_err(pfdev->dev, "failed to request gpu irq");
diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c
index 846dd697c410..ac4296c1e54b 100644
--- a/drivers/gpu/drm/panfrost/panfrost_mmu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c
@@ -753,13 +753,13 @@ static irqreturn_t panfrost_mmu_irq_handler_thread(int irq, void *data)
 
 int panfrost_mmu_init(struct panfrost_device *pfdev)
 {
-	int err, irq;
+	int err;
 
-	irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");
-	if (irq < 0)
-		return irq;
+	pfdev->mmu_irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");
+	if (pfdev->mmu_irq < 0)
+		return pfdev->mmu_irq;
 
-	err = devm_request_threaded_irq(pfdev->dev, irq,
+	err = devm_request_threaded_irq(pfdev->dev, pfdev->mmu_irq,
 					panfrost_mmu_irq_handler,
 					panfrost_mmu_irq_handler_thread,
 					IRQF_SHARED, KBUILD_MODNAME "-mmu",
-- 
2.43.0