linux-kernel - Re: [PATCH v5 3/7] drm/rockchip: vop: move line_flag

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Date:   Wed, 26 Jul 2017 14:17:06 +0800
From:   Mark yao <mark.yao@...k-chips.com>
To:     Heiko Stuebner <heiko@...ech.de>
Cc:     David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/7] drm/rockchip: vop: move line_flag_num to interrupt
 registers

On 2017年07月26日 05:54, Heiko Stuebner wrote:
> Hi Mark,
>
> Am Donnerstag, 20. Juli 2017, 10:43:32 CEST schrieb Mark Yao:
>> In the hardware design process, the design of line flags
>> register is associated with the interrupt register,
>> placing the line flags in the interrupt definition is
>> more reasonable, and it would make multi-vop define easilier.
>>
>> Changes in v3:
>> - Explain more in details, introduce why we need this patch
>>
>> Signed-off-by: Mark Yao <mark.yao@...k-chips.com>
>> Reviewed-by: Sean Paul <seanpaul@...omium.org>
>> ---
>>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 2 +-
>>   drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 4 ++--
>>   drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 8 ++++----
>>   3 files changed, 7 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> index 784a2b7..4f6c7bc 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
>> @@ -982,7 +982,7 @@ 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);
>> +	VOP_INTR_SET(vop, line_flag_num[0], vact_end);
> With patches applied up to this one I end up with
>
>    CC [M]  drivers/gpu/drm/rockchip/rockchip_drm_vop.o
> ../drivers/gpu/drm/rockchip/rockchip_drm_vop.c: In function ‘vop_crtc_enable’:
> ../drivers/gpu/drm/rockchip/rockchip_drm_vop.c:985:46: error: macro "VOP_INTR_SET" requires 4 arguments, but only 3 given
>    VOP_INTR_SET(vop, line_flag_num[0], vact_end);
>                                                ^
> ../drivers/gpu/drm/rockchip/rockchip_drm_vop.c:985:2: error: ‘VOP_INTR_SET’ undeclared (first use in this function)
>    VOP_INTR_SET(vop, line_flag_num[0], vact_end);
>    ^~~~~~~~~~~~
> ../drivers/gpu/drm/rockchip/rockchip_drm_vop.c:985:2: note: each undeclared identifier is reported only once for each function it appears in
>
> In patch4 you replace this again, with
> -	VOP_INTR_SET(vop, line_flag_num[0], vact_end);
> +	VOP_REG_SET(vop, intr, line_flag_num[0], vact_end);
>
> but this intermediate breakage should not happen, to keep bisectability.
>
>
> Heiko
>
>
>
Hi Heiko

Thanks for the test, will fix it at next version.

-- 
Ｍark Yao