diff options
| author | Dave Stevenson <dave.stevenson@raspberrypi.com> | 2024-10-25 18:15:56 +0100 |
|---|---|---|
| committer | Dave Stevenson <dave.stevenson@raspberrypi.com> | 2024-11-27 14:37:21 +0000 |
| commit | 88c065c739db1370881c2fc613a88bc35f05a5ce (patch) | |
| tree | 4fb6548c572235ba45f0c448263d41e59f10dcfa | |
| parent | b7b14b31c8866c2693e676921a8e528ec2bca216 (diff) | |
drm/vc4: hdmi: Support 2712 D-step register map
The D-step has increased FIFO sizes of the MAI_THR blocks,
resulting in changes to the register masking. Add support for
it.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241025-drm-vc4-2712-support-v2-25-35efa83c8fc0@raspberrypi.com
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_regs.h | 9 |
2 files changed, 26 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 1456966732ec..b9fc4d981cf4 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -2123,18 +2123,33 @@ static int vc4_hdmi_audio_prepare(struct device *dev, void *data, VC4_HDMI_AUDIO_PACKET_CEA_MASK); /* Set the MAI threshold */ - if (vc4->gen >= VC4_GEN_5) + switch (vc4->gen) { + case VC4_GEN_6_D: + HDMI_WRITE(HDMI_MAI_THR, + VC4_SET_FIELD(0x10, VC6_D_HD_MAI_THR_PANICHIGH) | + VC4_SET_FIELD(0x10, VC6_D_HD_MAI_THR_PANICLOW) | + VC4_SET_FIELD(0x1c, VC6_D_HD_MAI_THR_DREQHIGH) | + VC4_SET_FIELD(0x1c, VC6_D_HD_MAI_THR_DREQLOW)); + break; + case VC4_GEN_6_C: + case VC4_GEN_5: HDMI_WRITE(HDMI_MAI_THR, VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) | VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) | VC4_SET_FIELD(0x1c, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x1c, VC4_HD_MAI_THR_DREQLOW)); - else + break; + case VC4_GEN_4: HDMI_WRITE(HDMI_MAI_THR, VC4_SET_FIELD(0x8, VC4_HD_MAI_THR_PANICHIGH) | VC4_SET_FIELD(0x8, VC4_HD_MAI_THR_PANICLOW) | VC4_SET_FIELD(0x6, VC4_HD_MAI_THR_DREQHIGH) | VC4_SET_FIELD(0x8, VC4_HD_MAI_THR_DREQLOW)); + break; + default: + drm_err(drm, "Unknown VC4 generation: %d", vc4->gen); + break; + } HDMI_WRITE(HDMI_MAI_CONFIG, VC4_HDMI_MAI_CONFIG_BIT_REVERSE | diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index 0046bdb7ca32..27158be19952 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -987,6 +987,15 @@ enum { # define VC4_HD_MAI_THR_DREQLOW_MASK VC4_MASK(5, 0) # define VC4_HD_MAI_THR_DREQLOW_SHIFT 0 +# define VC6_D_HD_MAI_THR_PANICHIGH_MASK VC4_MASK(29, 23) +# define VC6_D_HD_MAI_THR_PANICHIGH_SHIFT 23 +# define VC6_D_HD_MAI_THR_PANICLOW_MASK VC4_MASK(21, 15) +# define VC6_D_HD_MAI_THR_PANICLOW_SHIFT 15 +# define VC6_D_HD_MAI_THR_DREQHIGH_MASK VC4_MASK(13, 7) +# define VC6_D_HD_MAI_THR_DREQHIGH_SHIFT 7 +# define VC6_D_HD_MAI_THR_DREQLOW_MASK VC4_MASK(6, 0) +# define VC6_D_HD_MAI_THR_DREQLOW_SHIFT 0 + /* Divider from HDMI HSM clock to MAI serial clock. Sampling period * converges to N / (M + 1) cycles. */ |