diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0446-drm-vc4-Fix-timings-for-VEC-modes.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0446-drm-vc4-Fix-timings-for-VEC-modes.patch | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0446-drm-vc4-Fix-timings-for-VEC-modes.patch b/target/linux/bcm27xx/patches-5.15/950-0446-drm-vc4-Fix-timings-for-VEC-modes.patch deleted file mode 100644 index 56b635d459..0000000000 --- a/target/linux/bcm27xx/patches-5.15/950-0446-drm-vc4-Fix-timings-for-VEC-modes.patch +++ /dev/null @@ -1,148 +0,0 @@ -From 3edc6e2d440803dfe22288c3ea7d77b4ab934ec8 Mon Sep 17 00:00:00 2001 -From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com> -Date: Thu, 15 Jul 2021 01:07:30 +0200 -Subject: [PATCH] drm/vc4: Fix timings for VEC modes - -This commit fixes vertical timings of the VEC (composite output) modes -to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R -standards. - -Previous timings were actually defined as 502 and 601 lines, resulting -in non-standard 62.69 Hz and 52 Hz signals being generated, -respectively. - -Changes to vc4_crtc.c have also been made, to make the PixelValve -vertical timings accurately correspond to the DRM modeline in interlaced -modes. The resulting VERTA/VERTB register values have been verified -against the reference values set by the Raspberry Pi firmware. - -Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com> ---- - drivers/gpu/drm/vc4/vc4_crtc.c | 70 +++++++++++++++++++++------------- - drivers/gpu/drm/vc4/vc4_vec.c | 4 +- - 2 files changed, 45 insertions(+), 29 deletions(-) - ---- a/drivers/gpu/drm/vc4/vc4_crtc.c -+++ b/drivers/gpu/drm/vc4/vc4_crtc.c -@@ -318,8 +318,14 @@ static void vc4_crtc_config_pv(struct dr - bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 || - vc4_encoder->type == VC4_ENCODER_TYPE_DSI1); - bool is_dsi1 = vc4_encoder->type == VC4_ENCODER_TYPE_DSI1; -+ bool is_vec = vc4_encoder->type == VC4_ENCODER_TYPE_VEC; - u32 format = is_dsi1 ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24; - u8 ppc = pv_data->pixels_per_clock; -+ -+ u16 vert_bp = mode->crtc_vtotal - mode->crtc_vsync_end; -+ u16 vert_sync = mode->crtc_vsync_end - mode->crtc_vsync_start; -+ u16 vert_fp = mode->crtc_vsync_start - mode->crtc_vdisplay; -+ - bool debug_dump_regs = false; - - if (debug_dump_regs) { -@@ -343,49 +349,59 @@ static void vc4_crtc_config_pv(struct dr - VC4_SET_FIELD(mode->hdisplay * pixel_rep / ppc, - PV_HORZB_HACTIVE)); - -- CRTC_WRITE(PV_VERTA, -- VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end + -- interlace, -- PV_VERTA_VBP) | -- VC4_SET_FIELD(mode->crtc_vsync_end - mode->crtc_vsync_start, -- PV_VERTA_VSYNC)); -- CRTC_WRITE(PV_VERTB, -- VC4_SET_FIELD(mode->crtc_vsync_start - mode->crtc_vdisplay, -- PV_VERTB_VFP) | -- VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE)); -- - if (interlace) { -+ bool odd_field_first = false; -+ u32 field_delay = mode->htotal * pixel_rep / (2 * ppc); -+ u16 vert_bp_even = vert_bp; -+ u16 vert_fp_even = vert_fp; -+ -+ if (is_vec) { -+ /* VEC (composite output) */ -+ ++field_delay; -+ if (mode->htotal == 858) { -+ /* 525-line mode (NTSC or PAL-M) */ -+ odd_field_first = true; -+ } -+ } -+ -+ if (odd_field_first) -+ ++vert_fp_even; -+ else -+ ++vert_bp; -+ - CRTC_WRITE(PV_VERTA_EVEN, -- VC4_SET_FIELD(mode->crtc_vtotal - -- mode->crtc_vsync_end, -- PV_VERTA_VBP) | -- VC4_SET_FIELD(mode->crtc_vsync_end - -- mode->crtc_vsync_start, -- PV_VERTA_VSYNC)); -+ VC4_SET_FIELD(vert_bp_even, PV_VERTA_VBP) | -+ VC4_SET_FIELD(vert_sync, PV_VERTA_VSYNC)); - CRTC_WRITE(PV_VERTB_EVEN, -- VC4_SET_FIELD(mode->crtc_vsync_start - -- mode->crtc_vdisplay, -- PV_VERTB_VFP) | -+ VC4_SET_FIELD(vert_fp_even, PV_VERTB_VFP) | - VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE)); - -- /* We set up first field even mode for HDMI. VEC's -- * NTSC mode would want first field odd instead, once -- * we support it (to do so, set ODD_FIRST and put the -- * delay in VSYNCD_EVEN instead). -+ /* We set up first field even mode for HDMI and VEC's PAL. -+ * For NTSC, we need first field odd. - */ - CRTC_WRITE(PV_V_CONTROL, - PV_VCONTROL_CONTINUOUS | - (is_dsi ? PV_VCONTROL_DSI : 0) | - PV_VCONTROL_INTERLACE | -- VC4_SET_FIELD(mode->htotal * pixel_rep / (2 * ppc), -- PV_VCONTROL_ODD_DELAY)); -- CRTC_WRITE(PV_VSYNCD_EVEN, 0); -+ (odd_field_first -+ ? PV_VCONTROL_ODD_FIRST -+ : VC4_SET_FIELD(field_delay, -+ PV_VCONTROL_ODD_DELAY))); -+ CRTC_WRITE(PV_VSYNCD_EVEN, -+ (odd_field_first ? field_delay : 0)); - } else { - CRTC_WRITE(PV_V_CONTROL, - PV_VCONTROL_CONTINUOUS | - (is_dsi ? PV_VCONTROL_DSI : 0)); - } - -+ CRTC_WRITE(PV_VERTA, -+ VC4_SET_FIELD(vert_bp, PV_VERTA_VBP) | -+ VC4_SET_FIELD(vert_sync, PV_VERTA_VSYNC)); -+ CRTC_WRITE(PV_VERTB, -+ VC4_SET_FIELD(vert_fp, PV_VERTB_VFP) | -+ VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE)); -+ - if (is_dsi) - CRTC_WRITE(PV_HACT_ACT, mode->hdisplay * pixel_rep); - ---- a/drivers/gpu/drm/vc4/vc4_vec.c -+++ b/drivers/gpu/drm/vc4/vc4_vec.c -@@ -256,7 +256,7 @@ static void vc4_vec_ntsc_j_mode_set(stru - static const struct drm_display_mode ntsc_mode = { - DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500, - 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0, -- 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0, -+ 480, 480 + 7, 480 + 7 + 6, 525, 0, - DRM_MODE_FLAG_INTERLACE) - }; - -@@ -278,7 +278,7 @@ static void vc4_vec_pal_m_mode_set(struc - static const struct drm_display_mode pal_mode = { - DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500, - 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0, -- 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0, -+ 576, 576 + 4, 576 + 4 + 6, 625, 0, - DRM_MODE_FLAG_INTERLACE) - }; - |