From: Abhinav Kumar <quic_abhinavk@quicinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>
Cc: <linux-arm-msm@vger.kernel.org>,
<dri-devel@lists.freedesktop.org>,
<freedreno@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 1/4] drm/msm/mdss: generate MDSS data for MDP5 platforms
Date: Fri, 9 Feb 2024 10:39:56 -0800 [thread overview]
Message-ID: <3bbcf1e5-e105-e7b0-ed8f-904d25f8040f@quicinc.com> (raw)
In-Reply-To: <20240208-fd-migrate-mdp5-v4-1-945d08ef3fa8@linaro.org>
On 2/8/2024 7:01 AM, Dmitry Baryshkov wrote:
> Older (mdp5) platforms do not use per-SoC compatible strings. Instead
> they use a single compat entry 'qcom,mdss'. To facilitate migrating
> these platforms to the DPU driver provide a way to generate the MDSS /
> UBWC data at runtime, when the DPU driver asks for it.
>
> It is not possible to generate this data structure at the probe time,
> since some platforms might not have MDP_CLK enabled, which makes reading
> HW_REV register useless and prone to possible crashes.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
> drivers/gpu/drm/msm/msm_mdss.c | 51 ++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 51 insertions(+)
>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
next prev parent reply other threads:[~2024-02-09 18:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-08 15:01 [PATCH v4 0/4] drm/msm: provide migration path from MDP5 to DPU driver Dmitry Baryshkov
2024-02-08 15:01 ` [PATCH v4 1/4] drm/msm/mdss: generate MDSS data for MDP5 platforms Dmitry Baryshkov
2024-02-09 18:39 ` Abhinav Kumar [this message]
2024-02-08 15:01 ` [PATCH v4 2/4] drm/msm/dpu: support binding to the mdp5 devices Dmitry Baryshkov
2024-02-09 18:43 ` Abhinav Kumar
2024-02-09 18:58 ` Dmitry Baryshkov
2024-02-19 11:37 ` Dmitry Baryshkov
2024-02-08 15:01 ` [PATCH v4 3/4] drm/msm: add a kernel param to select between MDP5 and DPU drivers Dmitry Baryshkov
2024-02-08 15:01 ` [PATCH v4 4/4] drm/msm/dpu: add support for SDM660 and SDM630 platforms Dmitry Baryshkov
2024-02-19 12:30 ` [PATCH v4 0/4] drm/msm: provide migration path from MDP5 to DPU driver Dmitry Baryshkov
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