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drm/bridge: tc358762: Split register programming from pre-enable to enable

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Move the register programming part, which actually enables the bridge and
makes it push data out of its DPI side, into the enable callback. The DSI
host like DSIM may not be able to transmit commands in pre_enable, moving
the register programming into enable assures it can transmit commands.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230615201902.566182-1-marex@denx.de
This commit is contained in:
Marek Vasut 2023-06-15 22:18:58 +02:00 committed by Robert Foss
parent a4c253d4f3
commit 8a4b2fc9c9
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GPG key ID: 3EFD900F76D1D784
1 changed files with 9 additions and 2 deletions
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11
drivers/gpu/drm/bridge/tc358762.c
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@ -162,11 +162,17 @@ static void tc358762_pre_enable(struct drm_bridge *bridge)
usleep_range(5000, 10000);
}
ctx->pre_enabled = true;
}
static void tc358762_enable(struct drm_bridge *bridge)
{
struct tc358762 *ctx = bridge_to_tc358762(bridge);
int ret;
ret = tc358762_init(ctx);
if (ret < 0)
dev_err(ctx->dev, "error initializing bridge (%d)\n", ret);
ctx->pre_enabled = true;
}
static int tc358762_attach(struct drm_bridge *bridge,
@ -181,6 +187,7 @@ static int tc358762_attach(struct drm_bridge *bridge,
static const struct drm_bridge_funcs tc358762_bridge_funcs = {
.post_disable = tc358762_post_disable,
.pre_enable = tc358762_pre_enable,
.enable = tc358762_enable,
.attach = tc358762_attach,
};