The D-step has increased FIFO sizes of the MAI_THR blocks,
resulting in changes to the register masking. Add support for
it.
Signed-off-by: Dave Stevenson <dave.steven...@raspberrypi.com>
Reviewed-by: Maxime Ripard <mrip...@kernel.org>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 19 +++++++++++++++++--
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.
*/
--
2.34.1
