From: Rob Herring <robh@kernel.org>
To: Meng Yi <meng.yi@nxp.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v5] drm/fsl-dcu: Implement gamma_lut atomic crtc properties
Date: Sat, 8 Oct 2016 20:28:22 -0500 [thread overview]
Message-ID: <20161009012822.GB18158@rob-hp-laptop> (raw)
In-Reply-To: <1475051069-24452-1-git-send-email-meng.yi@nxp.com>
On Wed, Sep 28, 2016 at 04:24:29PM +0800, Meng Yi wrote:
> Gamma correction is optional and can be used to adjust the color
> output values to match the gamut of a particular TFT LCD panel
>
> Split the DCU regs into "regs", "palette", "gamma" and "cursor".
> Create a second regmap for gamma memory space using little endian.
> The registers after the first address space are not accessed yet,
> hence new device trees would even work with old kernels. Just new
> kernel need the new format so we can access the separate gamma
> reg space.
>
> Suggested-by: Stefan Agner <stefan@agner.ch>
> Signed-off-by: Meng Yi <meng.yi@nxp.com>
> ---
> Changes since V1:
> -created a second regmap for gamma
> -updated the DCU DT binding
> -removed Kconfig for gamma and enable gamma when valid data filled.
> -extended and simplified comment lines.
> ---
> .../devicetree/bindings/display/fsl,dcu.txt | 12 +++++++-
Acked-by: Rob Herring <robh@kernel.org>
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 33 ++++++++++++++++++++
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 35 +++++++++++++++++++++-
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 7 +++++
> 4 files changed, 85 insertions(+), 2 deletions(-)
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next prev parent reply other threads:[~2016-10-09 1:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-28 8:24 [PATCH v5] drm/fsl-dcu: Implement gamma_lut atomic crtc properties Meng Yi
[not found] ` <1475051069-24452-1-git-send-email-meng.yi-3arQi8VN3Tc@public.gmane.org>
2016-09-30 16:23 ` Stefan Agner
2016-10-08 2:16 ` Meng Yi
2016-10-27 2:49 ` Meng Yi
2016-10-09 1:28 ` Rob Herring [this message]
2016-10-29 0:52 ` Stefan Agner
2016-11-04 6:42 ` Meng Yi
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