linux-kernel - Re: [PATCH v2 6/9] media: hantro: Convert imx8m_vpu_g2

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Date:   Tue, 30 Nov 2021 11:45:55 +0100
From:   Andrzej Pietrasiewicz <andrzej.p@...labora.com>
To:     Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-media@...r.kernel.org
Cc:     ezequiel@...guardiasur.com.ar, nicolas.dufresne@...labora.com,
        mchehab@...nel.org, robh+dt@...nel.org, mripard@...nel.org,
        wens@...e.org, p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: Re: [PATCH v2 6/9] media: hantro: Convert imx8m_vpu_g2_irq to helper

Hi Jernej,

W dniu 29.11.2021 o 19:26, Jernej Skrabec pisze:
> It turns out that imx8m_vpu_g2_irq() doesn't depend on any platform
> specifics and can be used with other G2 platform drivers too.
> 
> Move it to common code.
> 
> Signed-off-by: Jernej Skrabec <jernej.skrabec@...il.com>

Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>

> ---
>   drivers/staging/media/hantro/hantro_g2.c    | 18 ++++++++++++++++++
>   drivers/staging/media/hantro/hantro_hw.h    |  1 +
>   drivers/staging/media/hantro/imx8m_vpu_hw.c | 20 +-------------------
>   3 files changed, 20 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/staging/media/hantro/hantro_g2.c b/drivers/staging/media/hantro/hantro_g2.c
> index 6f3e1f797f83..ee5f14c5f8f2 100644
> --- a/drivers/staging/media/hantro/hantro_g2.c
> +++ b/drivers/staging/media/hantro/hantro_g2.c
> @@ -24,3 +24,21 @@ void hantro_g2_check_idle(struct hantro_dev *vpu)
>   		}
>   	}
>   }
> +
> +irqreturn_t hantro_g2_irq(int irq, void *dev_id)
> +{
> +	struct hantro_dev *vpu = dev_id;
> +	enum vb2_buffer_state state;
> +	u32 status;
> +
> +	status = vdpu_read(vpu, G2_REG_INTERRUPT);
> +	state = (status & G2_REG_INTERRUPT_DEC_RDY_INT) ?
> +		 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
> +
> +	vdpu_write(vpu, 0, G2_REG_INTERRUPT);
> +	vdpu_write(vpu, G2_REG_CONFIG_DEC_CLK_GATE_E, G2_REG_CONFIG);
> +
> +	hantro_irq_done(vpu, state);
> +
> +	return IRQ_HANDLED;
> +}
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index dbe51303724b..c33b1f5df37b 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -413,5 +413,6 @@ void hantro_g2_vp9_dec_done(struct hantro_ctx *ctx);
>   int hantro_vp9_dec_init(struct hantro_ctx *ctx);
>   void hantro_vp9_dec_exit(struct hantro_ctx *ctx);
>   void hantro_g2_check_idle(struct hantro_dev *vpu);
> +irqreturn_t hantro_g2_irq(int irq, void *dev_id);
>   
>   #endif /* HANTRO_HW_H_ */
> diff --git a/drivers/staging/media/hantro/imx8m_vpu_hw.c b/drivers/staging/media/hantro/imx8m_vpu_hw.c
> index 1a43f6fceef9..f5991b8e553a 100644
> --- a/drivers/staging/media/hantro/imx8m_vpu_hw.c
> +++ b/drivers/staging/media/hantro/imx8m_vpu_hw.c
> @@ -191,24 +191,6 @@ static irqreturn_t imx8m_vpu_g1_irq(int irq, void *dev_id)
>   	return IRQ_HANDLED;
>   }
>   
> -static irqreturn_t imx8m_vpu_g2_irq(int irq, void *dev_id)
> -{
> -	struct hantro_dev *vpu = dev_id;
> -	enum vb2_buffer_state state;
> -	u32 status;
> -
> -	status = vdpu_read(vpu, G2_REG_INTERRUPT);
> -	state = (status & G2_REG_INTERRUPT_DEC_RDY_INT) ?
> -		 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
> -
> -	vdpu_write(vpu, 0, G2_REG_INTERRUPT);
> -	vdpu_write(vpu, G2_REG_CONFIG_DEC_CLK_GATE_E, G2_REG_CONFIG);
> -
> -	hantro_irq_done(vpu, state);
> -
> -	return IRQ_HANDLED;
> -}
> -
>   static int imx8mq_vpu_hw_init(struct hantro_dev *vpu)
>   {
>   	vpu->ctrl_base = vpu->reg_bases[vpu->variant->num_regs - 1];
> @@ -280,7 +262,7 @@ static const struct hantro_irq imx8mq_irqs[] = {
>   };
>   
>   static const struct hantro_irq imx8mq_g2_irqs[] = {
> -	{ "g2", imx8m_vpu_g2_irq },
> +	{ "g2", hantro_g2_irq },
>   };
>   
>   static const char * const imx8mq_clk_names[] = { "g1", "g2", "bus" };
>