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path: root/drivers/gpu/drm/rcar-du
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Diffstat (limited to 'drivers/gpu/drm/rcar-du')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_drv.c23
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_group.c5
2 files changed, 26 insertions, 2 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index d8e1fd93908f..40422f6b645e 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -107,11 +107,34 @@ static const struct rcar_du_device_info rcar_du_r8a7791_info = {
.num_lvds = 1,
};
+static const struct rcar_du_device_info rcar_du_r8a7794_info = {
+ .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
+ | RCAR_DU_FEATURE_EXT_CTRL_REGS,
+ .num_crtcs = 2,
+ .routes = {
+ /* R8A7794 has two RGB outputs and one (currently unsupported)
+ * TCON output.
+ */
+ [RCAR_DU_OUTPUT_DPAD0] = {
+ .possible_crtcs = BIT(0),
+ .encoder_type = DRM_MODE_ENCODER_NONE,
+ .port = 0,
+ },
+ [RCAR_DU_OUTPUT_DPAD1] = {
+ .possible_crtcs = BIT(1),
+ .encoder_type = DRM_MODE_ENCODER_NONE,
+ .port = 1,
+ },
+ },
+ .num_lvds = 0,
+};
+
static const struct of_device_id rcar_du_of_table[] = {
{ .compatible = "renesas,du-r8a7779", .data = &rcar_du_r8a7779_info },
{ .compatible = "renesas,du-r8a7790", .data = &rcar_du_r8a7790_info },
{ .compatible = "renesas,du-r8a7791", .data = &rcar_du_r8a7791_info },
{ .compatible = "renesas,du-r8a7793", .data = &rcar_du_r8a7791_info },
+ { .compatible = "renesas,du-r8a7794", .data = &rcar_du_r8a7794_info },
{ }
};
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index 7fd39a7d91c8..8e2ffe025153 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -49,9 +49,10 @@ static void rcar_du_group_setup_defr8(struct rcar_du_group *rgrp)
u32 defr8 = DEFR8_CODE | DEFR8_DEFE8;
/* The DEFR8 register for the first group also controls RGB output
- * routing to DPAD0
+ * routing to DPAD0 for DU instances that support it.
*/
- if (rgrp->index == 0)
+ if (rgrp->dev->info->routes[RCAR_DU_OUTPUT_DPAD0].possible_crtcs > 1 &&
+ rgrp->index == 0)
defr8 |= DEFR8_DRGBS_DU(rgrp->dev->dpad0_source);
rcar_du_group_write(rgrp, DEFR8, defr8);