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Message-ID: <CAOw6vbJmtC_rFO3Tuh16X_C4ejM=BGB9-QqoE5-Nv4mOD4crbA@mail.gmail.com>
Date: Thu, 23 Jun 2016 09:48:33 -0400
From: Sean Paul <seanpaul@...omium.org>
To: Yakir Yang <ykk@...k-chips.com>
Cc: Mark Yao <yzq@...k-chips.com>, Inki Dae <inki.dae@...sung.com>,
Jingoo Han <jingoohan1@...il.com>,
Heiko Stuebner <heiko@...ech.de>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
linux-rockchip@...ts.infradead.org,
Daniel Vetter <daniel.vetter@...ll.ch>,
Emil Velikov <emil.l.velikov@...il.com>,
Douglas Anderson <dianders@...omium.org>,
dri-devel <dri-devel@...ts.freedesktop.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Javier Martinez Canillas <javier@....samsung.com>,
Tomasz Figa <tomasz.figa@...omium.com>,
Stéphane Marchesin <marcheu@...omium.org>,
Thierry Reding <treding@...dia.com>,
Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH v3 05/10] drm/rockchip: analogix_dp: add rk3399 eDP support
On Tue, Jun 14, 2016 at 7:46 AM, Yakir Yang <ykk@...k-chips.com> wrote:
> RK3399 and RK3288 shared the same eDP IP controller, only some light
> difference with VOP configure and GRF configure.
>
> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> Acked-by: Mark Yao <mark.yao@...k-chips.com>
> ---
> Changes in v3:
> - Give the "rk3399-edp" a separate line for clarity in document (Tomasz, reviewed at Google Gerrit)
> [https://chromium-review.googlesource.com/#/c/346314/10/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt@5]
> - Move 'output_type' setting before the return statement (Tomasz, reviewed at Google Gerrit)
> [https://chromium-review.googlesource.com/#/c/346314/10/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c@154]
> - Add the acked flag from Mark.
>
> Changes in v2:
> - rebase with drm-next, fix some conflicts
>
> .../bindings/display/bridge/analogix_dp.txt | 1 +
> .../display/rockchip/analogix_dp-rockchip.txt | 3 +-
> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 33 +++++++++++++++++++++-
> include/drm/bridge/analogix_dp.h | 1 +
> 4 files changed, 36 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
> index 4f2ba8c..4a0f4f7 100644
> --- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
> +++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt
> @@ -5,6 +5,7 @@ Required properties for dp-controller:
> platform specific such as:
> * "samsung,exynos5-dp"
> * "rockchip,rk3288-dp"
> + * "rockchip,rk3399-edp"
> -reg:
> physical base address of the controller and length
> of memory mapped region.
> diff --git a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> index e832ff9..726c945 100644
> --- a/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> +++ b/Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt
> @@ -2,7 +2,8 @@ Rockchip RK3288 specific extensions to the Analogix Display Port
> ================================
>
> Required properties:
> -- compatible: "rockchip,rk3288-edp";
> +- compatible: "rockchip,rk3288-edp",
> + "rockchip,rk3399-edp";
>
> - reg: physical base address of the controller and length
>
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> index 315ebba..bcd9ecc 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -153,6 +153,8 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder,
> struct drm_connector_state *conn_state)
> {
> struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
> + struct rockchip_dp_device *dp = to_dp(encoder);
> + int ret;
>
> /*
> * FIXME(Yakir): driver should configure the CRTC output video
> @@ -167,7 +169,28 @@ rockchip_dp_drm_encoder_atomic_check(struct drm_encoder *encoder,
> * But if I configure CTRC to RGBaaa, and eDP driver still keep
> * RGB666 input video mode, then screen would works prefect.
> */
> - s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
> +
> + ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);
> + if (ret < 0)
> + return 0;
What is s->output_mode set to in the failure case? How about s->output_type?
> +
> + switch (dp->data->chip_type) {
> + case RK3399_EDP:
> + /*
> + * For RK3399, VOP Lit must code the out mode to RGB888,
> + * VOP Big must code the out mode to RGB10.
> + */
> + if (ret)
> + s->output_mode = ROCKCHIP_OUT_MODE_P888;
> + else
> + s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
> + break;
> +
> + default:
> + s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
> + break;
> + }
> +
This chunk seems overly complicated. I'd suggest:
s->output_type = DRM_MODE_CONNECTOR_eDP;
s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
if (dp->data->chip_type == RK3399_EDP) {
ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder);
if (ret > 0)
s->output_mode = ROCKCHIP_OUT_MODE_P888;
}
> s->output_type = DRM_MODE_CONNECTOR_eDP;
>
> return 0;
> @@ -382,6 +405,13 @@ static const struct dev_pm_ops rockchip_dp_pm_ops = {
> SET_SYSTEM_SLEEP_PM_OPS(rockchip_dp_suspend, rockchip_dp_resume)
> };
>
> +static const struct rockchip_dp_chip_data rk3399_edp = {
> + .lcdsel_grf_reg = 0x6250,
> + .lcdsel_big = 0 | BIT(21),
> + .lcdsel_lit = BIT(5) | BIT(21),
> + .chip_type = RK3399_EDP,
> +};
> +
> static const struct rockchip_dp_chip_data rk3288_dp = {
> .lcdsel_grf_reg = 0x025c,
> .lcdsel_big = 0 | BIT(21),
> @@ -391,6 +421,7 @@ static const struct rockchip_dp_chip_data rk3288_dp = {
>
> static const struct of_device_id rockchip_dp_dt_ids[] = {
> {.compatible = "rockchip,rk3288-dp", .data = &rk3288_dp },
> + {.compatible = "rockchip,rk3399-edp", .data = &rk3399_edp },
> {}
> };
> MODULE_DEVICE_TABLE(of, rockchip_dp_dt_ids);
> diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
> index 06c0250..82b8135 100644
> --- a/include/drm/bridge/analogix_dp.h
> +++ b/include/drm/bridge/analogix_dp.h
> @@ -20,6 +20,7 @@ enum analogix_dp_devtype {
>
> enum analogix_dp_sub_devtype {
> RK3288_DP,
> + RK3399_EDP,
> };
>
> struct analogix_dp_plat_data {
> --
> 1.9.1
>
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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