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| author |   Jun Lei <Jun.Lei@amd.com> | 2019-04-08 15:27:53 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-04-23 17:28:19 -0500 |
| commit | a9a3c0da1427153e74a4ad97b1a897384a6b0404 (patch) | |
| tree | 1d847d9ddd02f904ca1a963473f49ecf97157b39 /drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | |
| parent | drm/amd/display: Allow cursor position when plane_res.ipp is NULL (diff) | |
| download | linux-dev-a9a3c0da1427153e74a4ad97b1a897384a6b0404.tar.xz linux-dev-a9a3c0da1427153e74a4ad97b1a897384a6b0404.zip | |
drm/amd/display: add explicit handshake between x86 and DMCU
[why]
When DMCU interrupts x86, it leads to undefined phy programming
[how]
expand dmcu interface to support new PHY lock and unlock commands
if DMCU FW doesn't support these commands, they fail silently so its okay
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c index 9ad7c543cc4c..818536eea00a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c @@ -51,6 +51,8 @@ #define PSR_SET_WAITLOOP 0x31 #define MCP_INIT_DMCU 0x88 #define MCP_INIT_IRAM 0x89 +#define MCP_SYNC_PHY_LOCK 0x90 +#define MCP_SYNC_PHY_UNLOCK 0x91 #define MCP_BL_SET_PWM_FRAC 0x6A /* Enable or disable Fractional PWM */ #define MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK 0x00000001L @@ -719,7 +721,7 @@ static bool dcn10_is_dmcu_initialized(struct dmcu *dmcu) return true; } -#endif +#endif //(CONFIG_DRM_AMD_DC_DCN1_0) static const struct dmcu_funcs dce_funcs = { .dmcu_init = dce_dmcu_init, |