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Date: Mon, 17 Feb 2020 12:15:05 +0200 From: Stanimir Varbanov <stanimir.varbanov@...aro.org> To: Jeffrey Kardatzke <jkardatzke@...gle.com>, linux-media@...r.kernel.org Cc: Stanimir Varbanov <stanimir.varbanov@...aro.org>, Andy Gross <agross@...nel.org>, "Mauro Carvalho Chehab )" <mchehab@...nel.org>, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] media: venus: support frame rate control Hi Jeff, Thanks for the patch! On 2/13/20 11:30 PM, Jeffrey Kardatzke wrote: > Frame rate control is always enabled in this driver, so make it silently > support the V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE. > > Signed-off-by: Jeffrey Kardatzke <jkardatzke@...gle.com> > --- > drivers/media/platform/qcom/venus/venc_ctrls.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c > index 877c0b3299e9..9ede692f77c5 100644 > --- a/drivers/media/platform/qcom/venus/venc_ctrls.c > +++ b/drivers/media/platform/qcom/venus/venc_ctrls.c > @@ -199,6 +199,9 @@ static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl) > } > mutex_unlock(&inst->lock); > break; > + case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: > + // Silently ignore, it's always enabled. Please, use C comments and follow the kernel coding style. I wonder shouldn't it be better to add rc_enable field in struct venc_controls and give the user choice to disable the rate control? We can keep the default to be "enabled". > + break; > default: > return -EINVAL; > } > @@ -351,6 +354,9 @@ int venc_ctrl_init(struct venus_inst *inst) > v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, > V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME, 0, 0, 0, 0); > > + v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE, 0, 1, 1, 1); > + you forgot to increment the number of controls in the call to v4l2_ctrl_handler_init. > ret = inst->ctrl_handler.error; > if (ret) > goto err; > -- regards, Stan
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