Hi Tomi,
Thank you for the patch.
On Tue, Dec 03, 2024 at 10:01:40AM +0200, Tomi Valkeinen wrote:
> From: Tomi Valkeinen <tomi.valkeinen+rene...@ideasonboard.com>
>
> Add support for r8a779h0. It is very similar to r8a779g0, but has only
> one output.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+rene...@ideasonboard.com>
> ---
> drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c | 19 +++++++++++++++++++
> drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.h | 1 +
> drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c | 16 ++++++++++------
> 3 files changed, 30 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> index fb719d9aff10..afbc74e18cce 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
> @@ -545,6 +545,24 @@ static const struct rcar_du_device_info
> rcar_du_r8a779g0_info = {
> .dsi_clk_mask = BIT(1) | BIT(0),
> };
>
> +static const struct rcar_du_device_info rcar_du_r8a779h0_info = {
> + .gen = 4,
> + .features = RCAR_DU_FEATURE_CRTC_IRQ
> + | RCAR_DU_FEATURE_VSP1_SOURCE
> + | RCAR_DU_FEATURE_NO_BLENDING
> + | RCAR_DU_FEATURE_NO_DPTSR,
> + .channels_mask = BIT(0),
> + .routes = {
> + /* R8A779H0 has one MIPI DSI output. */
> + [RCAR_DU_OUTPUT_DSI0] = {
> + .possible_crtcs = BIT(0),
> + .port = 0,
> + },
> + },
> + .num_rpf = 5,
> + .dsi_clk_mask = BIT(0),
> +};
> +
> static const struct of_device_id rcar_du_of_table[] = {
> { .compatible = "renesas,du-r8a7742", .data = &rcar_du_r8a7790_info },
> { .compatible = "renesas,du-r8a7743", .data = &rzg1_du_r8a7743_info },
> @@ -571,6 +589,7 @@ static const struct of_device_id rcar_du_of_table[] = {
> { .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info },
> { .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info },
> { .compatible = "renesas,du-r8a779g0", .data = &rcar_du_r8a779g0_info },
> + { .compatible = "renesas,du-r8a779h0", .data = &rcar_du_r8a779h0_info },
> { }
> };
>
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.h
> b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.h
> index 5cfa2bb7ad93..d7004f76f735 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.h
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.h
> @@ -32,6 +32,7 @@ struct rcar_du_device;
> #define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */
> #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */
> #define RCAR_DU_FEATURE_NO_BLENDING BIT(5) /* PnMR.SPIM does not have ALP
> nor EOR bits */
> +#define RCAR_DU_FEATURE_NO_DPTSR BIT(6) /* V4M does not have DPTSR */
Do we need a quirk ? At first glance it seems the DPTSR register is only
used for DU instances that have two channels, so a check on the number
of channels should be enough ?
>
> #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
>
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> index 2ccd2581f544..132d930670eb 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_group.c
> @@ -107,10 +107,12 @@ static void rcar_du_group_setup_didsr(struct
> rcar_du_group *rgrp)
> */
> rcrtc = rcdu->crtcs;
> num_crtcs = rcdu->num_crtcs;
> - } else if (rcdu->info->gen >= 3 && rgrp->num_crtcs > 1) {
> + } else if ((rcdu->info->gen == 3 && rgrp->num_crtcs > 1) ||
> + rcdu->info->gen == 4) {
> /*
> * On Gen3 dot clocks are setup through per-group registers,
> * only available when the group has two channels.
> + * On Gen4 the registers are there for single channel too.
> */
> rcrtc = &rcdu->crtcs[rgrp->index * 2];
> num_crtcs = rgrp->num_crtcs;
> @@ -185,11 +187,13 @@ static void rcar_du_group_setup(struct rcar_du_group
> *rgrp)
> dorcr |= DORCR_PG1T | DORCR_DK1S | DORCR_PG1D_DS1;
> rcar_du_group_write(rgrp, DORCR, dorcr);
>
> - /* Apply planes to CRTCs association. */
> - mutex_lock(&rgrp->lock);
> - rcar_du_group_write(rgrp, DPTSR, (rgrp->dptsr_planes << 16) |
> - rgrp->dptsr_planes);
> - mutex_unlock(&rgrp->lock);
> + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_NO_DPTSR)) {
> + /* Apply planes to CRTCs association. */
> + mutex_lock(&rgrp->lock);
> + rcar_du_group_write(rgrp, DPTSR, (rgrp->dptsr_planes << 16) |
> + rgrp->dptsr_planes);
> + mutex_unlock(&rgrp->lock);
> + }
> }
>
> /*
--
Regards,
Laurent Pinchart
