On 5/4/25 16:11, Rodrigo Siqueira wrote:
DCN401 and DCN31 share the same implementation for disabling CRTC. This
commit makes DCN401 use the DCN31 implementation and removes the code
duplication in the DCN401.

Hi Rodrigo

optc31_disable_crtc is not the same as optc401_disable_crtc. Please see the dfiff below:

< /* disable_crtc - call ASIC Control Object to disable Timing generator. */
< static bool optc31_disable_crtc(struct timing_generator *optc)
---
> /* disable_crtc */
> bool optc401_disable_crtc(struct timing_generator *optc)
147,148c232
<                       1, 100000);
<       optc1_clear_optc_underflow(optc);
---
>                       1, 150000);
152,155c236,237


However, optc31_disable_crtc is the same as optc35_disable_crtc (patch 3?) and optc32_disable_crtc is the same as optc401_disable_crtc.


Signed-off-by: Rodrigo Siqueira <sique...@igalia.com>
---
  .../amd/display/dc/optc/dcn31/dcn31_optc.c    |  2 +-
  .../amd/display/dc/optc/dcn31/dcn31_optc.h    |  2 ++
  .../amd/display/dc/optc/dcn401/dcn401_optc.c  | 34 +------------------
  .../amd/display/dc/optc/dcn401/dcn401_optc.h  |  1 -
  4 files changed, 4 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c 
b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
index 13c1f95b5ced..e6246e5ba86f 100644
--- a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.c
@@ -125,7 +125,7 @@ bool optc31_enable_crtc(struct timing_generator *optc)
  }
/* disable_crtc - call ASIC Control Object to disable Timing generator. */
-static bool optc31_disable_crtc(struct timing_generator *optc)
+bool optc31_disable_crtc(struct timing_generator *optc)
  {
        struct optc *optc1 = DCN10TG_FROM_TG(optc);
diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.h b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.h
index af67eeaf8505..db7e51fc787e 100644
--- a/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/optc/dcn31/dcn31_optc.h
@@ -267,6 +267,8 @@ void dcn31_timing_generator_init(struct optc *optc1);
bool optc31_immediate_disable_crtc(struct timing_generator *optc); +bool optc31_disable_crtc(struct timing_generator *optc);
+
  bool optc31_enable_crtc(struct timing_generator *optc);
void optc31_set_drr(struct timing_generator *optc, const struct drr_params *params);
diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c 
b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c
index 6eba48de58ff..f472d2efe026 100644
--- a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.c
@@ -170,38 +170,6 @@ void optc401_set_h_timing_div_manual_mode(struct 
timing_generator *optc, bool ma
                        OTG_H_TIMING_DIV_MODE_MANUAL, manual_mode ? 1 : 0);
  }
-/* disable_crtc */
-bool optc401_disable_crtc(struct timing_generator *optc)
-{
-       struct optc *optc1 = DCN10TG_FROM_TG(optc);
-
-       REG_UPDATE_5(OPTC_DATA_SOURCE_SELECT,
-                       OPTC_SEG0_SRC_SEL, 0xf,
-                       OPTC_SEG1_SRC_SEL, 0xf,
-                       OPTC_SEG2_SRC_SEL, 0xf,
-                       OPTC_SEG3_SRC_SEL, 0xf,
-                       OPTC_NUM_OF_INPUT_SEGMENT, 0);
-
-       REG_UPDATE(OPTC_MEMORY_CONFIG,
-                       OPTC_MEM_SEL, 0);
-
-       /* disable otg request until end of the first line
-        * in the vertical blank region
-        */
-       REG_UPDATE(OTG_CONTROL,
-                       OTG_MASTER_EN, 0);
-
-       REG_UPDATE(CONTROL,
-                       VTG0_ENABLE, 0);
-
-       /* CRTC disabled, so disable  clock. */
-       REG_WAIT(OTG_CLOCK_CONTROL,
-                       OTG_BUSY, 0,
-                       1, 150000);
-
-       return true;
-}
-
  void optc401_phantom_crtc_post_enable(struct timing_generator *optc)
  {
        struct optc *optc1 = DCN10TG_FROM_TG(optc);
@@ -435,7 +403,7 @@ static struct timing_generator_funcs dcn401_tg_funcs = {
                .setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2,
                .program_global_sync = optc401_program_global_sync,
                .enable_crtc = optc31_enable_crtc,
-               .disable_crtc = optc401_disable_crtc,
+               .disable_crtc = optc31_disable_crtc,
                .phantom_crtc_post_enable = optc401_phantom_crtc_post_enable,
                .disable_phantom_crtc = optc401_disable_phantom_otg,
                /* used by enable_timing_synchronization. Not need for FPGA */
diff --git a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h 
b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h
index 8e795e06e615..be74fd709d43 100644
--- a/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/optc/dcn401/dcn401_optc.h
@@ -180,7 +180,6 @@ void optc401_program_global_sync(
                int vupdate_offset,
                int vupdate_width,
                int pstate_keepout);
-bool optc401_disable_crtc(struct timing_generator *optc);
  void optc401_phantom_crtc_post_enable(struct timing_generator *optc);
  void optc401_disable_phantom_otg(struct timing_generator *optc);
  void optc401_set_odm_bypass(struct timing_generator *optc,

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