linux-kernel - [PATCH v4 10/25] drm: kirin: Move workqueue to ade_hw

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Message-Id: <20190819230321.56480-11-john.stultz@linaro.org>
Date:   Mon, 19 Aug 2019 23:03:06 +0000
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     John Stultz <john.stultz@...aro.org>,
        Rongrong Zou <zourongrong@...il.com>,
        Xinliang Liu <z.liuxinliang@...ilicon.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Sam Ravnborg <sam@...nborg.org>
Subject: [PATCH v4 10/25] drm: kirin: Move workqueue to ade_hw_ctx structure

The workqueue used to reset the display when we hit an LDI
underflow error is ADE specific, so since this patch series
works to make the kirin_crtc structure more generic, move the
workqueue to the ade_hw_ctx structure instead.

Cc: Rongrong Zou <zourongrong@...il.com>
Cc: Xinliang Liu <z.liuxinliang@...ilicon.com>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: dri-devel <dri-devel@...ts.freedesktop.org>
Cc: Sam Ravnborg <sam@...nborg.org>
Acked-by: Xinliang Liu <z.liuxinliang@...ilicon.com>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index 8f50115a22d8..191ee59f68b6 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -52,6 +52,7 @@ struct ade_hw_ctx {
 	struct clk *media_noc_clk;
 	struct clk *ade_pix_clk;
 	struct reset_control *reset;
+	struct work_struct display_reset_wq;
 	bool power_on;
 	int irq;
 
@@ -61,7 +62,6 @@ struct ade_hw_ctx {
 struct kirin_crtc {
 	struct drm_crtc base;
 	void *hw_ctx;
-	struct work_struct display_reset_wq;
 	bool enable;
 };
 
@@ -349,9 +349,9 @@ static void ade_crtc_disable_vblank(struct drm_crtc *crtc)
 
 static void drm_underflow_wq(struct work_struct *work)
 {
-	struct kirin_crtc *acrtc = container_of(work, struct kirin_crtc,
+	struct ade_hw_ctx *ctx = container_of(work, struct ade_hw_ctx,
 					      display_reset_wq);
-	struct drm_device *drm_dev = (&acrtc->base)->dev;
+	struct drm_device *drm_dev = ctx->crtc->dev;
 	struct drm_atomic_state *state;
 
 	state = drm_atomic_helper_suspend(drm_dev);
@@ -362,7 +362,6 @@ static irqreturn_t ade_irq_handler(int irq, void *data)
 {
 	struct ade_hw_ctx *ctx = data;
 	struct drm_crtc *crtc = ctx->crtc;
-	struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
 	void __iomem *base = ctx->base;
 	u32 status;
 
@@ -379,7 +378,7 @@ static irqreturn_t ade_irq_handler(int irq, void *data)
 		ade_update_bits(base + LDI_INT_CLR, UNDERFLOW_INT_EN_OFST,
 				MASK(1), 1);
 		DRM_ERROR("LDI underflow!");
-		schedule_work(&kcrtc->display_reset_wq);
+		schedule_work(&ctx->display_reset_wq);
 	}
 
 	return IRQ_HANDLED;
@@ -1016,6 +1015,7 @@ static void *ade_hw_ctx_alloc(struct platform_device *pdev,
 	if (ret)
 		return ERR_PTR(-EIO);
 
+	INIT_WORK(&ctx->display_reset_wq, drm_underflow_wq);
 	ctx->crtc = crtc;
 
 	return ctx;
@@ -1071,8 +1071,6 @@ static int ade_drm_init(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	INIT_WORK(&kcrtc->display_reset_wq, drm_underflow_wq);
-
 	return 0;
 }
 
-- 
2.17.1