[PATCH v11 21/24] drm/rockchip: Make VOP driver optional

[Sascha Hauer]

With upcoming VOP2 support VOP won't be the only choice anymore, so make
the VOP driver optional.

This also adds a dependency from ROCKCHIP_ANALOGIX_DP to ROCKCHIP_VOP,
because that driver currently only links and works with the VOP driver.

Signed-off-by: Sascha Hauer <s.ha...@pengutronix.de>
---

Notes:
    Changes since v9:
    - Reword Kconfig text
    - Add note to commit message why ROCKCHIP_ANALOGIX_DP now depends on 
ROCKCHIP_VOP

 drivers/gpu/drm/rockchip/Kconfig            | 8 ++++++++
 drivers/gpu/drm/rockchip/Makefile           | 3 ++-
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 +-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index fa5cfda4e90e3..22cf6c8402c89 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -23,8 +23,16 @@ config DRM_ROCKCHIP
 
 if DRM_ROCKCHIP
 
+config ROCKCHIP_VOP
+       bool "Rockchip VOP driver"
+       default y
+       help
+         This selects support for the VOP driver. You should enable it
+         on older SoCs.
+
 config ROCKCHIP_ANALOGIX_DP
        bool "Rockchip specific extensions for Analogix DP driver"
+       depends on ROCKCHIP_VOP
        help
          This selects support for Rockchip SoC specific extensions
          for the Analogix Core DP driver. If you want to enable DP
diff --git a/drivers/gpu/drm/rockchip/Makefile 
b/drivers/gpu/drm/rockchip/Makefile
index 1a56f696558ca..dfc5512fdb9f1 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -4,8 +4,9 @@
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
 rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \
-               rockchip_drm_gem.o rockchip_drm_vop.o rockchip_vop_reg.o
+               rockchip_drm_gem.o
 
+rockchipdrm-$(CONFIG_ROCKCHIP_VOP) += rockchip_drm_vop.o rockchip_vop_reg.o
 rockchipdrm-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o
 rockchipdrm-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o
 rockchipdrm-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c 
b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 0dc09d92d92d6..6ab0460819467 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -481,7 +481,7 @@ static int __init rockchip_drm_init(void)
                return -ENODEV;
 
        num_rockchip_sub_drivers = 0;
-       ADD_ROCKCHIP_SUB_DRIVER(vop_platform_driver, CONFIG_DRM_ROCKCHIP);
+       ADD_ROCKCHIP_SUB_DRIVER(vop_platform_driver, CONFIG_ROCKCHIP_VOP);
        ADD_ROCKCHIP_SUB_DRIVER(rockchip_lvds_driver,
                                CONFIG_ROCKCHIP_LVDS);
        ADD_ROCKCHIP_SUB_DRIVER(rockchip_dp_driver,
-- 
2.30.2