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drm: renesas: rz-du: Add RZ/G2UL DU Support

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The LCD controller is composed of Frame Compression Processor (FCPVD),
Video Signal Processor (VSPD), and Display Unit (DU).

It has DPI interface and supports a maximum resolution of WXGA along
with 2 RPFs to support the blending of two picture layers and raster
operations (ROPs).

The DU module is connected to VSPD. Add RZ/G2UL DU support.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240822162320.5084-3-biju.das.jz@bp.renesas.com
This commit is contained in:
Biju Das 2024-08-22 17:23:15 +01:00 • committed by Tomi Valkeinen
parent 2ef7cb1cea
commit b330f14801
3 changed files with 20 additions and 2 deletions
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8
drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
View file

@ -28,6 +28,7 @@
#include "rzg2l_du_vsp.h" #include "rzg2l_du_vsp.h"
#define DU_MCR0 0x00 #define DU_MCR0 0x00
#define DU_MCR0_DPI_OE BIT(0)
#define DU_MCR0_DI_EN BIT(8) #define DU_MCR0_DI_EN BIT(8)
#define DU_DITR0 0x10 #define DU_DITR0 0x10
@ -216,9 +217,14 @@ static void rzg2l_du_crtc_put(struct rzg2l_du_crtc *rcrtc)
static void rzg2l_du_start_stop(struct rzg2l_du_crtc *rcrtc, bool start) static void rzg2l_du_start_stop(struct rzg2l_du_crtc *rcrtc, bool start)
{ {
struct rzg2l_du_crtc_state *rstate = to_rzg2l_crtc_state(rcrtc->crtc.state);
struct rzg2l_du_device *rcdu = rcrtc->dev; struct rzg2l_du_device *rcdu = rcrtc->dev;
u32 val = DU_MCR0_DI_EN;
writel(start ? DU_MCR0_DI_EN : 0, rcdu->mmio + DU_MCR0); if (rstate->outputs & BIT(RZG2L_DU_OUTPUT_DPAD0))
val |= DU_MCR0_DPI_OE;
writel(start ? val : 0, rcdu->mmio + DU_MCR0);
} }
static void rzg2l_du_crtc_start(struct rzg2l_du_crtc *rcrtc) static void rzg2l_du_crtc_start(struct rzg2l_du_crtc *rcrtc)

11
drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
View file

@ -25,6 +25,16 @@
* Device Information * Device Information
*/ */
static const struct rzg2l_du_device_info rzg2l_du_r9a07g043u_info = {
.channels_mask = BIT(0),
.routes = {
[RZG2L_DU_OUTPUT_DPAD0] = {
.possible_outputs = BIT(0),
.port = 0,
},
},
};
static const struct rzg2l_du_device_info rzg2l_du_r9a07g044_info = { static const struct rzg2l_du_device_info rzg2l_du_r9a07g044_info = {
.channels_mask = BIT(0), .channels_mask = BIT(0),
.routes = { .routes = {
@ -40,6 +50,7 @@ static const struct rzg2l_du_device_info rzg2l_du_r9a07g044_info = {
}; };
static const struct of_device_id rzg2l_du_of_table[] = { static const struct of_device_id rzg2l_du_of_table[] = {
{ .compatible = "renesas,r9a07g043u-du", .data = &rzg2l_du_r9a07g043u_info },
{ .compatible = "renesas,r9a07g044-du", .data = &rzg2l_du_r9a07g044_info }, { .compatible = "renesas,r9a07g044-du", .data = &rzg2l_du_r9a07g044_info },
{ /* sentinel */ } { /* sentinel */ }
}; };

3
drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
View file

@ -183,7 +183,8 @@ static int rzg2l_du_encoders_init(struct rzg2l_du_device *rcdu)
/* Find the output route corresponding to the port number. */ /* Find the output route corresponding to the port number. */
for (i = 0; i < RZG2L_DU_OUTPUT_MAX; ++i) { for (i = 0; i < RZG2L_DU_OUTPUT_MAX; ++i) {
if (rcdu->info->routes[i].port == ep.port) { if (rcdu->info->routes[i].possible_outputs &&
rcdu->info->routes[i].port == ep.port) {
output = i; output = i;
break; break;
} }