Add encoder funcs and helpers for VDAC.
Signed-off-by: Rongrong Zou zourongrong@gmail.com Signed-off-by: Jianhua Li lijianhua@huawei.com --- drivers/gpu/drm/hisilicon/hibmc/Makefile | 2 +- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 6 ++ drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 2 + drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 85 ++++++++++++++++++++++++ 4 files changed, 94 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
diff --git a/drivers/gpu/drm/hisilicon/hibmc/Makefile b/drivers/gpu/drm/hisilicon/hibmc/Makefile index faa7e64..4e7797a 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/Makefile +++ b/drivers/gpu/drm/hisilicon/hibmc/Makefile @@ -1,4 +1,4 @@ -hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_de.o hibmc_drm_power.o +hibmc-drm-y := hibmc_drm_drv.o hibmc_drm_de.o hibmc_drm_vdac.o hibmc_drm_power.o
obj-$(CONFIG_DRM_HISI_HIBMC) +=hibmc-drm.o #obj-y += hibmc-drm.o diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index f7837cc..962072f 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -129,6 +129,12 @@ static int hibmc_kms_init(struct hibmc_drm_device *hidev) return ret; }
+ ret = hibmc_encoder_init(hidev); + if (ret) { + DRM_ERROR("failed to init encoder\n"); + return ret; + } + return 0; }
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h index e64ec8d..d0c5982 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h @@ -34,11 +34,13 @@ struct hibmc_drm_device { struct drm_device *dev; struct drm_plane plane; struct drm_crtc crtc; + struct drm_encoder encoder; bool mode_config_initialized; };
int hibmc_plane_init(struct hibmc_drm_device *hidev); int hibmc_crtc_init(struct hibmc_drm_device *hidev); +int hibmc_encoder_init(struct hibmc_drm_device *hidev);
#endif diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c new file mode 100644 index 0000000..cb9a130 --- /dev/null +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c @@ -0,0 +1,85 @@ +/* Hisilicon Hibmc SoC drm driver + * + * Based on the bochs drm driver. + * + * Copyright (c) 2016 Huawei Limited. + * + * Author: + * Rongrong Zou zourongrong@huawei + * Rongrong Zou zourongrong@gmail.com + * Jianhua Li lijianhua@huawei.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <drm/drm_atomic_helper.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drmP.h> + +#include "hibmc_drm_drv.h" +#include "hibmc_drm_regs.h" + + +static void hibmc_encoder_disable(struct drm_encoder *encoder) +{ +} + +static void hibmc_encoder_enable(struct drm_encoder *encoder) +{ +} + +static void hibmc_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adj_mode) +{ + u32 reg; + struct drm_device *dev = encoder->dev; + struct hibmc_drm_device *hidev = dev->dev_private; + + /* just open DISPLAY_CONTROL_HISILE register bit 3:0*/ + reg = readl(hidev->mmio + DISPLAY_CONTROL_HISILE); + reg |= 0xf; + writel(reg, hidev->mmio + DISPLAY_CONTROL_HISILE); +} + +static int hibmc_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + return 0; +} + +static const struct drm_encoder_helper_funcs hibmc_encoder_helper_funcs = { + .mode_set = hibmc_encoder_mode_set, + .disable = hibmc_encoder_disable, + .enable = hibmc_encoder_enable, + .atomic_check = hibmc_encoder_atomic_check, +}; + +static const struct drm_encoder_funcs hibmc_encoder_encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +int hibmc_encoder_init(struct hibmc_drm_device *hidev) +{ + struct drm_device *dev = hidev->dev; + struct drm_encoder *encoder = &hidev->encoder; + int ret; + + encoder->possible_crtcs = 0x1; + ret = drm_encoder_init(dev, encoder, &hibmc_encoder_encoder_funcs, + DRM_MODE_ENCODER_DAC, NULL); + if (ret) { + DRM_ERROR("failed to init encoder\n"); + return ret; + } + + drm_encoder_helper_add(encoder, &hibmc_encoder_helper_funcs); + return 0; +} +