[PATCH v4 09/16] drm: rockchip: add bpc and color mode setting

Heiko Stuebner
2015-09-01T21:00:57Z

Hi Yakir,

Am Dienstag, 1. September 2015, 14:01:48 schrieb Yakir Yang:
> From: Mark Yao <yzq@rock-chips.com>
>
> Add bpc and color mode setting in rockchip_drm_vop driver, so
> connector could try to use the edid drm_display_info to config
> vop output mode.
>
> Signed-off-by: Mark Yao <yzq@rock-chips.com>
> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
> ---
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
>
> drivers/gpu/drm/rockchip/analogix_dp-rockchip.c | 46
> +++++++++++++++++++------ drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c |
> 2 +-
> drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 2 +-
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 33 ++++++++++++++++--
> 4 files changed, 68 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c index cebff9e..efea045
> 100644
> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
> @@ -11,11 +11,6 @@
> * Free Software Foundation; either version 2 of the License, or (at your
> * option) any later version.
> */
> -#include <drm/drmP.h>
> -#include <drm/drm_crtc_helper.h>
> -#include <drm/drm_panel.h>
> -#include <drm/drm_of.h>
> -#include <drm/drm_dp_helper.h>
>
> #include <linux/component.h>
> #include <linux/mfd/syscon.h>
> @@ -27,6 +22,13 @@
> #include <video/of_videomode.h>
> #include <video/videomode.h>
>
> +#include <drm/drmP.h>
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_crtc_helper.h>
> +#include <drm/drm_panel.h>
> +#include <drm/drm_of.h>
> +#include <drm/drm_dp_helper.h>
> +
> #include <drm/bridge/analogix_dp.h>
>
> #include "rockchip_drm_drv.h"
> @@ -125,20 +127,44 @@ static void rockchip_dp_drm_encoder_mode_set(struct
> drm_encoder *encoder, /* do nothing */
> }
>
> +static drm_connector *rockchip_dp_get_connector(struct rockchip_dp_device

missing a "struct" -> static struct drm_connector

> *dp) +{
> + struct drm_connector *connector;
> + struct drm_device *drm_dev = dp->drm_dev;
> +
> + drm_for_each_connector(connector, drm_dev) {
> + if (connector->encoder != &dp->encoder)
> + return connector;
> + }
> +
> + return NULL;
> +}
> +
> static void rockchip_dp_drm_encoder_prepare(struct drm_encoder *encoder)
> {
> struct rockchip_dp_device *dp = encoder_to_dp(encoder);
> + struct drm_connector *connector;
> + int ret = 0;
> u32 val;
> - int ret;
>
> - ret = rockchip_drm_crtc_mode_config(encoder->crtc,
> - DRM_MODE_CONNECTOR_eDP,
> - ROCKCHIP_OUT_MODE_AAAA);
> - if (ret < 0) {
> + connector = rockchip_dp_get_connector(dp);
> + if (!connector) {
> + DRM_ERROR("Failed to get connector by encoder[%p]\n", encoder);
> + return;
> + }
> +
> + if (connector->display_info.color_formats | DRM_COLOR_FORMAT_RGB444)
> + ret = rockchip_drm_crtc_mode_config(
> + encoder->crtc, DRM_MODE_CONNECTOR_eDP,
> + connector->display_info.bpc, DRM_COLOR_FORMAT_RGB444);
> + if (!ret) {
> dev_err(dp->dev, "Could not set crtc mode config: %d.\n", ret);
> return;
> }
>
> + connector->display_info.bpc = ret;
> + connector->display_info.color_formats = DRM_COLOR_FORMAT_RGB444;
> +
> ret = rockchip_drm_encoder_get_mux_id(dp->dev->of_node, encoder);
> if (ret < 0)
> return;
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index 80d6fc8..428a3c1 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -215,7 +215,7 @@ static void dw_hdmi_rockchip_encoder_commit(struct
> drm_encoder *encoder) static void dw_hdmi_rockchip_encoder_prepare(struct
> drm_encoder *encoder) {
> rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
> - ROCKCHIP_OUT_MODE_AAAA);
> + 10, DRM_COLOR_FORMAT_RGB444);
> }
>
> static struct drm_encoder_helper_funcs
> dw_hdmi_rockchip_encoder_helper_funcs = { diff --git
> a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h index dc4e5f0..ef1d7fb 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
> @@ -59,7 +59,7 @@ void rockchip_unregister_crtc_funcs(struct drm_device
> *dev, int pipe); int rockchip_drm_encoder_get_mux_id(struct device_node
> *node,
> struct drm_encoder *encoder);
> int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, int
> connector_type, - int out_mode);
> + int bpc, int color);
> int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
> struct device *dev);
> void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 34b78e7..5d7f9b6 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -811,14 +811,41 @@ static const struct drm_plane_funcs vop_plane_funcs =
> {
>
> int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc,
> int connector_type,
> - int out_mode)
> + int bpc, int color)
> {
> struct vop *vop = to_vop(crtc);
> -
> vop->connector_type = connector_type;
> vop->connector_out_mode = out_mode;

this line should probably go away, as the source var "out_mode" does not exist
in the function params any more, making the compilation break, and is set
below anyway.

Heiko

>
> - return 0;
> + /*
> + * RK3288 vop only support RGB Color output.
> + */
> + if (color != DRM_COLOR_FORMAT_RGB444) {
> + DRM_ERROR("Only support output RGB444, not support%d\n",
> + color);
> + return -EINVAL;
> + }
> +
> + /*
> + * Fixme: I don't know how to describe the ROCKCHIP_OUT_MODE_P565's
> + * bpc, 5 or 6?
> + *
> + */
> + if (bpc >= 10) {
> + bpc = 10;
> + vop->connector_out_mode = ROCKCHIP_OUT_MODE_AAAA;
> + } else if (bpc >= 8) {
> + bpc = 8;
> + vop->connector_out_mode = ROCKCHIP_OUT_MODE_P888;
> + } else if (bpc >= 6) {
> + bpc = 6;
> + vop->connector_out_mode = ROCKCHIP_OUT_MODE_P888;
> + } else {
> + DRM_ERROR("unsupport bpc %d\n", bpc);
> + return -EINVAL;
> + }
> +
> + return bpc;
> }
> EXPORT_SYMBOL_GPL(rockchip_drm_crtc_mode_config);