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d81c03f05e
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
From d48dad2dbadc52056f0bfea42f552e272f2525fa Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Thu, 2 May 2024 12:03:58 +0100
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Subject: [PATCH] drm/vc4: dsi: Don't reset the host until post_disable
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Some DSI peripheral drivers wish to send commands in the
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post_disable or panel unprepare callback. These are called
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after the DSI host's disable call, but before the host's
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post_disable if pre_enable_prev_first is set.
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Don't reset the block until post_disable to allow these
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commands to be sent.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_dsi.c | 15 +++++++--------
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1 file changed, 7 insertions(+), 8 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_dsi.c
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+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
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@@ -823,6 +823,13 @@ static void vc4_dsi_bridge_disable(struc
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disp0_ctrl = DSI_PORT_READ(DISP0_CTRL);
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disp0_ctrl &= ~DSI_DISP0_ENABLE;
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DSI_PORT_WRITE(DISP0_CTRL, disp0_ctrl);
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+}
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+
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+static void vc4_dsi_bridge_post_disable(struct drm_bridge *bridge,
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+ struct drm_bridge_state *state)
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+{
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+ struct vc4_dsi *dsi = bridge_to_vc4_dsi(bridge);
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+ struct device *dev = &dsi->pdev->dev;
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/* Reset the DSI and all its fifos. */
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DSI_PORT_WRITE(CTRL, DSI_CTRL_SOFT_RESET_CFG |
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@@ -833,14 +840,6 @@ static void vc4_dsi_bridge_disable(struc
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DSI_PORT_BIT(PHY_AFEC0_PD) |
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DSI_PORT_BIT(AFEC0_PD_ALL_LANES));
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-}
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-
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-static void vc4_dsi_bridge_post_disable(struct drm_bridge *bridge,
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- struct drm_bridge_state *state)
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-{
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- struct vc4_dsi *dsi = bridge_to_vc4_dsi(bridge);
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- struct device *dev = &dsi->pdev->dev;
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-
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clk_disable_unprepare(dsi->pll_phy_clock);
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clk_disable_unprepare(dsi->escape_clock);
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clk_disable_unprepare(dsi->pixel_clock);
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