From 38baec94ca584b7370c78b0fc445ef5def269ac6 Mon Sep 17 00:00:00 2001
From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Date: Mon, 29 Aug 2022 15:11:40 +0200
Subject: [PATCH] drm/vc4: vec: Refactor VEC TV mode setting
MIME-Version: 1.0
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Change the mode_set function pointer logic to declarative config0,
config1 and custom_freq fields, to make TV mode setting logic more
concise and uniform.
Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
[Maxime: Fixed != 0 check, added tv_mode variable]
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728-rpi-analog-tv-properties-v2-26-459522d653a7@cerno.tech
---
drivers/gpu/drm/vc4/vc4_vec.c | 88 +++++++++--------------------------
1 file changed, 23 insertions(+), 65 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 2c5d44e34f45..f015cd4c53d0 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -194,7 +194,9 @@ enum vc4_vec_tv_mode_id {
struct vc4_vec_tv_mode {
const struct drm_display_mode *mode;
- void (*mode_set)(struct vc4_vec *vec);
+ u32 config0;
+ u32 config1;
+ u32 custom_freq;
};
static const struct debugfs_reg32 vec_regs[] = {
@@ -224,34 +226,6 @@ static const struct debugfs_reg32 vec_regs[] = {
VC4_REG32(VEC_DAC_MISC),
};
-static void vc4_vec_ntsc_mode_set(struct vc4_vec *vec)
-{
- struct drm_device *drm = vec->connector.dev;
- int idx;
-
- if (!drm_dev_enter(drm, &idx))
- return;
-
- VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN);
- VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
-
- drm_dev_exit(idx);
-}
-
-static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
-{
- struct drm_device *drm = vec->connector.dev;
- int idx;
-
- if (!drm_dev_enter(drm, &idx))
- return;
-
- VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD);
- VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
-
- drm_dev_exit(idx);
-}
-
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,
@@ -259,37 +233,6 @@ static const struct drm_display_mode ntsc_mode = {
DRM_MODE_FLAG_INTERLACE)
};
-static void vc4_vec_pal_mode_set(struct vc4_vec *vec)
-{
- struct drm_device *drm = vec->connector.dev;
- int idx;
-
- if (!drm_dev_enter(drm, &idx))
- return;
-
- VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
- VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
-
- drm_dev_exit(idx);
-}
-
-static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
-{
- struct drm_device *drm = vec->connector.dev;
- int idx;
-
- if (!drm_dev_enter(drm, &idx))
- return;
-
- VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
- VEC_WRITE(VEC_CONFIG1,
- VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ);
- VEC_WRITE(VEC_FREQ3_2, 0x223b);
- VEC_WRITE(VEC_FREQ1_0, 0x61d1);
-
- drm_dev_exit(idx);
-}
-
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,
@@ -300,19 +243,24 @@ static const struct drm_display_mode pal_mode = {
static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
[VC4_VEC_TV_MODE_NTSC] = {
.mode = &ntsc_mode,
- .mode_set = vc4_vec_ntsc_mode_set,
+ .config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_NTSC_J] = {
.mode = &ntsc_mode,
- .mode_set = vc4_vec_ntsc_j_mode_set,
+ .config0 = VEC_CONFIG0_NTSC_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL] = {
.mode = &pal_mode,
- .mode_set = vc4_vec_pal_mode_set,
+ .config0 = VEC_CONFIG0_PAL_BDGHI_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL_M] = {
.mode = &pal_mode,
- .mode_set = vc4_vec_pal_m_mode_set,
+ .config0 = VEC_CONFIG0_PAL_BDGHI_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
+ .custom_freq = 0x223b61d1,
},
};
@@ -412,6 +360,8 @@ static void vc4_vec_encoder_enable(struct drm_encoder *encoder,
{
struct drm_device *drm = encoder->dev;
struct vc4_vec *vec = encoder_to_vc4_vec(encoder);
+ const struct vc4_vec_tv_mode *tv_mode =
+ vec->tv_mode;
int idx, ret;
if (!drm_dev_enter(drm, &idx))
@@ -470,7 +420,15 @@ static void vc4_vec_encoder_enable(struct drm_encoder *encoder,
/* Mask all interrupts. */
VEC_WRITE(VEC_MASK0, 0);
- vec->tv_mode->mode_set(vec);
+ VEC_WRITE(VEC_CONFIG0, tv_mode->config0);
+ VEC_WRITE(VEC_CONFIG1, tv_mode->config1);
+
+ if (tv_mode->custom_freq) {
+ VEC_WRITE(VEC_FREQ3_2,
+ (tv_mode->custom_freq >> 16) & 0xffff);
+ VEC_WRITE(VEC_FREQ1_0,
+ tv_mode->custom_freq & 0xffff);
+ }
VEC_WRITE(VEC_DAC_MISC,
VEC_DAC_MISC_VID_ACT | VEC_DAC_MISC_DAC_RST_N);