mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
66 lines
2.3 KiB
Diff
66 lines
2.3 KiB
Diff
|
From d1f7e9e87961139c7da9a570b1858a8841a32d6e Mon Sep 17 00:00:00 2001
|
||
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
||
|
|
Date: Mon, 7 Feb 2022 17:14:51 +0000
|
||
|
|
Subject: [PATCH] drm/vc4: Move DSI initialisation to encoder_mode_set.
|
||
|
|
|
||
|
|
Breaking the bridge chain does not work for atomic bridges/panels
|
||
|
|
and generally causes issues.
|
||
|
|
We need to initialise the DSI host before the bridge pre_enables
|
||
|
|
are called, so move that to encoder_mode_set in the same way that
|
||
|
|
dw-mipi-dsi does.
|
||
|
|
|
||
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
||
|
|
---
|
||
|
|
drivers/gpu/drm/vc4/vc4_dsi.c | 17 +++++++++++++----
|
||
|
|
1 file changed, 13 insertions(+), 4 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
|
||
|
|
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
|
||
|
|
@@ -872,19 +872,19 @@ static bool vc4_dsi_encoder_mode_fixup(s
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
-static void vc4_dsi_encoder_enable(struct drm_encoder *encoder)
|
||
|
|
+static void vc4_dsi_encoder_mode_set(struct drm_encoder *encoder,
|
||
|
|
+ struct drm_display_mode *user_mode,
|
||
|
|
+ struct drm_display_mode *adjusted_mode)
|
||
|
|
{
|
||
|
|
- struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
|
||
|
|
struct vc4_dsi_encoder *vc4_encoder = to_vc4_dsi_encoder(encoder);
|
||
|
|
struct vc4_dsi *dsi = vc4_encoder->dsi;
|
||
|
|
struct device *dev = &dsi->pdev->dev;
|
||
|
|
bool debug_dump_regs = false;
|
||
|
|
- struct drm_bridge *iter;
|
||
|
|
unsigned long hs_clock;
|
||
|
|
u32 ui_ns;
|
||
|
|
/* Minimum LP state duration in escape clock cycles. */
|
||
|
|
u32 lpx = dsi_esc_timing(60);
|
||
|
|
- unsigned long pixel_clock_hz = mode->clock * 1000;
|
||
|
|
+ unsigned long pixel_clock_hz = adjusted_mode->clock * 1000;
|
||
|
|
unsigned long dsip_clock;
|
||
|
|
unsigned long phy_clock;
|
||
|
|
int ret;
|
||
|
|
@@ -1111,6 +1111,14 @@ static void vc4_dsi_encoder_enable(struc
|
||
|
|
~DSI_PORT_BIT(PHY_AFEC0_RESET));
|
||
|
|
|
||
|
|
vc4_dsi_ulps(dsi, false);
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+static void vc4_dsi_encoder_enable(struct drm_encoder *encoder)
|
||
|
|
+{
|
||
|
|
+ struct vc4_dsi_encoder *vc4_encoder = to_vc4_dsi_encoder(encoder);
|
||
|
|
+ struct vc4_dsi *dsi = vc4_encoder->dsi;
|
||
|
|
+ bool debug_dump_regs = false;
|
||
|
|
+ struct drm_bridge *iter;
|
||
|
|
|
||
|
|
list_for_each_entry_reverse(iter, &dsi->bridge_chain, chain_node) {
|
||
|
|
if (iter->funcs->pre_enable)
|
||
|
|
@@ -1376,6 +1384,7 @@ static const struct drm_encoder_helper_f
|
||
|
|
.disable = vc4_dsi_encoder_disable,
|
||
|
|
.enable = vc4_dsi_encoder_enable,
|
||
|
|
.mode_fixup = vc4_dsi_encoder_mode_fixup,
|
||
|
|
+ .mode_set = vc4_dsi_encoder_mode_set,
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct vc4_dsi_variant bcm2711_dsi1_variant = {
|