Subject: Re: [PATCH] drm/rockchip: Set line flag config register in
 vop_crtc_enable
To: Jeffy Chen <jeffy.chen@rock-chips.com>, linux-kernel@vger.kernel.org
References: <1493276057-4516-1-git-send-email-jeffy.chen@rock-chips.com>
Cc: tfiga@chromium.org, dbasehore@chromium.org, seanpaul@chromium.org,
        dianders@chromium.org, Heiko Stuebner <heiko@sntech.de>,
        dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org,
        David Airlie <airlied@linux.ie>, linux-arm-kernel@lists.infradead.org
From: Mark yao <mark.yao@rock-chips.com>
Message-ID: <5901970D.2070902@rock-chips.com>
Date: Thu, 27 Apr 2017 15:00:29 +0800
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On 2017年04月27日 14:54, Jeffy Chen wrote:
> We need to set vop config done after update line flag config, it's a
> new requirement for chips newer than rk3368.
>
> Since we would only use line flag irq for vact_end, let's move it to
> vop_crtc_enable.
>
> Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>

looks good for me:

Acked-by: Mark Yao <mark.yao@rock-chips.com>

>
> ---
>
>   drivers/gpu/drm/rockchip/analogix_dp-rockchip.c |  4 ++--
>   drivers/gpu/drm/rockchip/rockchip_drm_drv.h     |  3 +--
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c     | 20 +++++++++-----------
>   3 files changed, 12 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index d8fa7a9..9bfdbc6 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -115,8 +115,8 @@ static void analogix_dp_psr_work(struct work_struct *work)
>   
>   	vact_end = crtc->mode.vtotal - crtc->mode.vsync_start + crtc->mode.vdisplay;
>   
> -	ret = rockchip_drm_wait_line_flag(dp->encoder.crtc, vact_end,
> -					  PSR_WAIT_LINE_FLAG_TIMEOUT_MS);
> +	ret = rockchip_drm_wait_vact_end(dp->encoder.crtc,
> +					 PSR_WAIT_LINE_FLAG_TIMEOUT_MS);
>   	if (ret) {
>   		dev_err(dp->dev, "line flag interrupt did not arrive\n");
>   		return;
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> index a48fcce..47905fa 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> @@ -62,8 +62,7 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
>   				   struct device *dev);
>   void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
>   				    struct device *dev);
> -int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
> -				unsigned int mstimeout);
> +int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout);
>   
>   extern struct platform_driver cdn_dp_driver;
>   extern struct platform_driver dw_hdmi_rockchip_pltfm_driver;
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 3f7a82d..40a5e6e 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -468,7 +468,7 @@ static bool vop_line_flag_irq_is_enabled(struct vop *vop)
>   	return !!line_flag_irq;
>   }
>   
> -static void vop_line_flag_irq_enable(struct vop *vop, int line_num)
> +static void vop_line_flag_irq_enable(struct vop *vop)
>   {
>   	unsigned long flags;
>   
> @@ -477,7 +477,6 @@ static void vop_line_flag_irq_enable(struct vop *vop, int line_num)
>   
>   	spin_lock_irqsave(&vop->irq_lock, flags);
>   
> -	VOP_CTRL_SET(vop, line_flag_num[0], line_num);
>   	VOP_INTR_SET_TYPE(vop, clear, LINE_FLAG_INTR, 1);
>   	VOP_INTR_SET_TYPE(vop, enable, LINE_FLAG_INTR, 1);
>   
> @@ -981,6 +980,8 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
>   	VOP_CTRL_SET(vop, vact_st_end, val);
>   	VOP_CTRL_SET(vop, vpost_st_end, val);
>   
> +	VOP_CTRL_SET(vop, line_flag_num[0], vact_end);
> +
>   	clk_set_rate(vop->dclk, adjusted_mode->clock * 1000);
>   
>   	VOP_CTRL_SET(vop, standby, 0);
> @@ -1507,19 +1508,16 @@ static void vop_win_init(struct vop *vop)
>   }
>   
>   /**
> - * rockchip_drm_wait_line_flag - acqiure the give line flag event
> + * rockchip_drm_wait_vact_end
>    * @crtc: CRTC to enable line flag
> - * @line_num: interested line number
>    * @mstimeout: millisecond for timeout
>    *
> - * Driver would hold here until the interested line flag interrupt have
> - * happened or timeout to wait.
> + * Wait for vact_end line flag irq or timeout.
>    *
>    * Returns:
>    * Zero on success, negative errno on failure.
>    */
> -int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
> -				unsigned int mstimeout)
> +int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout)
>   {
>   	struct vop *vop = to_vop(crtc);
>   	unsigned long jiffies_left;
> @@ -1527,14 +1525,14 @@ int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
>   	if (!crtc || !vop->is_enabled)
>   		return -ENODEV;
>   
> -	if (line_num > crtc->mode.vtotal || mstimeout <= 0)
> +	if (mstimeout <= 0)
>   		return -EINVAL;
>   
>   	if (vop_line_flag_irq_is_enabled(vop))
>   		return -EBUSY;
>   
>   	reinit_completion(&vop->line_flag_completion);
> -	vop_line_flag_irq_enable(vop, line_num);
> +	vop_line_flag_irq_enable(vop);
>   
>   	jiffies_left = wait_for_completion_timeout(&vop->line_flag_completion,
>   						   msecs_to_jiffies(mstimeout));
> @@ -1547,7 +1545,7 @@ int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
>   
>   	return 0;
>   }
> -EXPORT_SYMBOL(rockchip_drm_wait_line_flag);
> +EXPORT_SYMBOL(rockchip_drm_wait_vact_end);
>   
>   static int vop_bind(struct device *dev, struct device *master, void *data)
>   {


-- 
Ｍark Yao