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drm/vc4: dsi: Add configuration for BCM2711 DSI1

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BCM2711 DSI1 doesn't have the issue with the ARM not being
able to write to the registers, therefore remove the DMA
workaround for that compatible string.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-8-maxime@cerno.tech
This commit is contained in:
Dave Stevenson 2020-12-03 14:25:42 +01:00 committed by Maxime Ripard
parent 00aedfa459
commit d0666be8ef
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 10 additions and 2 deletions
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12
drivers/gpu/drm/vc4/vc4_dsi.c
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@ -1324,6 +1324,13 @@ static const struct drm_encoder_helper_funcs vc4_dsi_encoder_helper_funcs = {
.mode_fixup = vc4_dsi_encoder_mode_fixup,
};
static const struct vc4_dsi_variant bcm2711_dsi1_variant = {
.port = 1,
.debugfs_name = "dsi1_regs",
.regs = dsi1_regs,
.nregs = ARRAY_SIZE(dsi1_regs),
};
static const struct vc4_dsi_variant bcm2835_dsi0_variant = {
.port = 0,
.debugfs_name = "dsi0_regs",
@ -1340,6 +1347,7 @@ static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
};
static const struct of_device_id vc4_dsi_dt_match[] = {
{ .compatible = "brcm,bcm2711-dsi1", &bcm2711_dsi1_variant },
{ .compatible = "brcm,bcm2835-dsi0", &bcm2835_dsi0_variant },
{ .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
{}
@ -1524,8 +1532,8 @@ static int vc4_dsi_bind(struct device *dev, struct device *master, void *data)
return -ENODEV;
}
/* DSI1 has a broken AXI slave that doesn't respond to writes
* from the ARM. It does handle writes from the DMA engine,
/* DSI1 on BCM2835/6/7 has a broken AXI slave that doesn't respond to
* writes from the ARM. It does handle writes from the DMA engine,
* so set up a channel for talking to it.
*/
if (dsi->variant->broken_axi_workaround) {