Hi Arnd,
Tested-by: Jeffy Chen <jeffy.chen at rock-chips.com>
Thanx for fixing this :)
On 03/29/2017 12:37 AM, Guenter Roeck wrote:
> On Tue, Mar 28, 2017 at 3:16 AM, Arnd Bergmann <arnd at arndb.de> wrote:
>> A bug that I had fixed earlier just came back, with CONFIG_EXTCON=m,
>> the rockchip drm driver will fail to link:
>>
>> drivers/gpu/drm/rockchip/cdn-dp-core.o: In function `cdn_dp_get_port_lanes':
>> cdn-dp-core.c:(.text.cdn_dp_get_port_lanes+0x30): undefined reference to `extcon_get_state'
>> cdn-dp-core.c:(.text.cdn_dp_get_port_lanes+0x6c): undefined reference to `extcon_get_property'
>> drivers/gpu/drm/rockchip/cdn-dp-core.o: In function `cdn_dp_check_sink_connection':
>> cdn-dp-core.c:(.text.cdn_dp_check_sink_connection+0x80): undefined reference to `extcon_get_state'
>> drivers/gpu/drm/rockchip/cdn-dp-core.o: In function `cdn_dp_enable':
>> cdn-dp-core.c:(.text.cdn_dp_enable+0x748): undefined reference to `extcon_get_property'
>>
>> The problem is that that the sub-drivers are now all linked into the
>> main rockchip drm module, which breaks all the Kconfig dependencies
>> that are specified in the options for those sub-drivers.
>>
>> This clarifies the dependency to ensure that we can only turn on the DP
>> driver when EXTCON is reachable. As the 'select' statements can now
>> cause additional options to become built-in when they should be
>> loadable modules, I'm moving those into the main driver config option.
>> The dependency on DRM_ROCKCHIP can be reduced into a single 'if'
>> statement here for brevity, but this has no functional effect.
>>
>> Fixes: b6705157b2db ("drm/rockchip: add extcon dependency for DP")
>> Fixes: 8820b68bd378 ("drm/rockchip: Refactor the component match logic.")
>> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
>
> Acked-by: Guenter Roeck <groeck at chromium.org>
>
>> ---
>> drivers/gpu/drm/rockchip/Kconfig | 19 +++++++++----------
>> 1 file changed, 9 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
>> index 50c41c0a50ef..dcc539ba85d6 100644
>> --- a/drivers/gpu/drm/rockchip/Kconfig
>> +++ b/drivers/gpu/drm/rockchip/Kconfig
>> @@ -5,6 +5,10 @@ config DRM_ROCKCHIP
>> select DRM_KMS_HELPER
>> select DRM_PANEL
>> select VIDEOMODE_HELPERS
>> + select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP
>> + select DRM_DW_HDMI if ROCKCHIP_DW_HDMI
>> + select DRM_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI
>> + select SND_SOC_HDMI_CODEC if ROCKCHIP_CDN_DP && SND_SOC
>> help
>> Choose this option if you have a Rockchip soc chipset.
>> This driver provides kernel mode setting and buffer
>> @@ -12,10 +16,10 @@ config DRM_ROCKCHIP
>> 2D or 3D acceleration; acceleration is performed by other
>> IP found on the SoC.
>>
>> +if DRM_ROCKCHIP
>> +
>> config ROCKCHIP_ANALOGIX_DP
>> bool "Rockchip specific extensions for Analogix DP driver"
>> - depends on DRM_ROCKCHIP
>> - select DRM_ANALOGIX_DP
>> help
>> This selects support for Rockchip SoC specific extensions
>> for the Analogix Core DP driver. If you want to enable DP
>> @@ -23,9 +27,7 @@ config ROCKCHIP_ANALOGIX_DP
>>
>> config ROCKCHIP_CDN_DP
>> bool "Rockchip cdn DP"
>> - depends on DRM_ROCKCHIP
>> - depends on EXTCON
>> - select SND_SOC_HDMI_CODEC if SND_SOC
>> + depends on EXTCON=y || (EXTCON=m && DRM_ROCKCHIP=m)
>> help
>> This selects support for Rockchip SoC specific extensions
>> for the cdn DP driver. If you want to enable Dp on
>> @@ -34,8 +36,6 @@ config ROCKCHIP_CDN_DP
>>
>> config ROCKCHIP_DW_HDMI
>> bool "Rockchip specific extensions for Synopsys DW HDMI"
>> - depends on DRM_ROCKCHIP
>> - select DRM_DW_HDMI
>> help
>> This selects support for Rockchip SoC specific extensions
>> for the Synopsys DesignWare HDMI driver. If you want to
>> @@ -44,8 +44,6 @@ config ROCKCHIP_DW_HDMI
>>
>> config ROCKCHIP_DW_MIPI_DSI
>> bool "Rockchip specific extensions for Synopsys DW MIPI DSI"
>> - depends on DRM_ROCKCHIP
>> - select DRM_MIPI_DSI
>> help
>> This selects support for Rockchip SoC specific extensions
>> for the Synopsys DesignWare HDMI driver. If you want to
>> @@ -54,8 +52,9 @@ config ROCKCHIP_DW_MIPI_DSI
>>
>> config ROCKCHIP_INNO_HDMI
>> bool "Rockchip specific extensions for Innosilicon HDMI"
>> - depends on DRM_ROCKCHIP
>> help
>> This selects support for Rockchip SoC specific extensions
>> for the Innosilicon HDMI driver. If you want to enable
>> HDMI on RK3036 based SoC, you should select this option.
>> +
>> +endif
>> --
>> 2.9.0
>>
>
>
>
