| Message ID | 20220112174612.10773-19-biju.das.jz@bp.renesas.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add RZ/G2L Display support | expand |
Hi Biju, Thank you for the patch. On Wed, Jan 12, 2022 at 05:46:02PM +0000, Biju Das wrote: > The LCD controller is composed of Frame Compression Processor (FCPVD), > Video Signal Processor (VSPD), and Display Unit (DU). > > It has DPI/DSI interfaces and supports a maximum resolution of 1080p > along with 2 rpf's to support blending of two picture layers and > raster operations (ROPs). > > A feature bit for RZ/G2L SoC is introduced to support RZ/G2L with > the rest of the SoC supported by this driver. The RZ/G2L DU seems to be a completely different IP core than the DU in R-Car and other RZ SoCs. I think it should be supported by a separate driver, or at least with a different (and modularized) CRTC implementation. This patch has too many RCAR_DU_FEATURE_RZG2L checks. > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> > --- > drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 148 ++++++++++++++++++------ > drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 + > drivers/gpu/drm/rcar-du/rcar_du_drv.c | 23 ++++ > drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 + > drivers/gpu/drm/rcar-du/rcar_du_group.c | 5 + > drivers/gpu/drm/rcar-du/rcar_du_regs.h | 52 +++++++++ > 6 files changed, 195 insertions(+), 36 deletions(-) > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > index 521446890d3d..aea9178f3e7d 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > @@ -10,6 +10,7 @@ > #include <linux/clk.h> > #include <linux/mutex.h> > #include <linux/platform_device.h> > +#include <linux/reset.h> > #include <linux/sys_soc.h> > > #include <drm/drm_atomic.h> > @@ -219,6 +220,42 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) > u32 dsmr; > u32 escr; > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + u32 ditr0, ditr1, ditr2, ditr3, ditr4, ditr5, pbcr0; > + > + clk_set_rate(rcrtc->extclock, mode_clock); > + > + ditr0 = (DU_DITR0_DEMD_HIGH > + | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DU_DITR0_VSPOL : 0) > + | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DU_DITR0_HSPOL : 0)); > + > + ditr1 = DU_DITR1_VSA(mode->vsync_end - mode->vsync_start) > + | DU_DITR1_VACTIVE(mode->vdisplay); > + > + ditr2 = DU_DITR2_VBP(mode->vtotal - mode->vsync_end) > + | DU_DITR2_VFP(mode->vsync_start - mode->vdisplay); > + > + ditr3 = DU_DITR3_HSA(mode->hsync_end - mode->hsync_start) > + | DU_DITR3_HACTIVE(mode->hdisplay); > + > + ditr4 = DU_DITR4_HBP(mode->htotal - mode->hsync_end) > + | DU_DITR4_HFP(mode->hsync_start - mode->hdisplay); > + > + ditr5 = DU_DITR5_VSFT(0) | DU_DITR5_HSFT(0); > + > + pbcr0 = DU_PBCR0_PB_DEP(0x1F); > + > + rcar_du_write(rcdu, DU_DITR0, ditr0); > + rcar_du_write(rcdu, DU_DITR1, ditr1); > + rcar_du_write(rcdu, DU_DITR2, ditr2); > + rcar_du_write(rcdu, DU_DITR3, ditr3); > + rcar_du_write(rcdu, DU_DITR4, ditr4); > + rcar_du_write(rcdu, DU_DITR5, ditr5); > + rcar_du_write(rcdu, DU_PBCR0, pbcr0); > + > + return; > + } > + > if (rcdu->info->dpll_mask & (1 << rcrtc->index)) { > unsigned long target = mode_clock; > struct dpll_info dpll = { 0 }; > @@ -531,16 +568,23 @@ static void rcar_du_cmm_setup(struct drm_crtc *crtc) > > static void rcar_du_crtc_setup(struct rcar_du_crtc *rcrtc) > { > - /* Set display off and background to black */ > - rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); > - rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); > + struct rcar_du_device *rcdu = rcrtc->dev; > > - /* Configure display timings and output routing */ > - rcar_du_crtc_set_display_timing(rcrtc); > - rcar_du_group_set_routing(rcrtc->group); > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + /* Set display off and background to black */ > + rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); > + rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); > > - /* Start with all planes disabled. */ > - rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); > + /* Configure display timings and output routing */ > + rcar_du_crtc_set_display_timing(rcrtc); > + rcar_du_group_set_routing(rcrtc->group); > + > + /* Start with all planes disabled. */ > + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); > + } else { > + /* Configure display timings and output routing */ > + rcar_du_crtc_set_display_timing(rcrtc); > + } > > /* Enable the VSP compositor. */ > if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) > @@ -561,6 +605,12 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) > if (rcrtc->initialized) > return 0; > > + if (rcrtc->rstc) { > + ret = reset_control_deassert(rcrtc->rstc); > + if (ret < 0) > + goto error_reset; > + } > + > ret = clk_prepare_enable(rcrtc->clock); > if (ret < 0) > return ret; > @@ -582,6 +632,9 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) > clk_disable_unprepare(rcrtc->extclock); > error_clock: > clk_disable_unprepare(rcrtc->clock); > +error_reset: > + if (rcrtc->rstc) > + reset_control_assert(rcrtc->rstc); > return ret; > } > > @@ -591,23 +644,28 @@ static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) > > clk_disable_unprepare(rcrtc->extclock); > clk_disable_unprepare(rcrtc->clock); > + if (rcrtc->rstc) > + reset_control_assert(rcrtc->rstc); > > rcrtc->initialized = false; > } > > static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) > { > + struct rcar_du_device *rcdu = rcrtc->dev; > bool interlaced; > > - /* > - * Select master sync mode. This enables display operation in master > - * sync mode (with the HSYNC and VSYNC signals configured as outputs and > - * actively driven). > - */ > - interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; > - rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, > - (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | > - DSYSR_TVM_MASTER); > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + /* > + * Select master sync mode. This enables display operation in master > + * sync mode (with the HSYNC and VSYNC signals configured as outputs and > + * actively driven). > + */ > + interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; > + rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, > + (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | > + DSYSR_TVM_MASTER); > + } > > rcar_du_group_start_stop(rcrtc->group, true); > } > @@ -1229,6 +1287,14 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, > name = NULL; > } > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + rcrtc->rstc = devm_reset_control_get_shared(rcdu->dev, NULL); > + if (IS_ERR(rcrtc->rstc)) { > + dev_err(rcdu->dev, "can't get cpg reset\n"); > + return PTR_ERR(rcrtc->rstc); > + } > + } > + > rcrtc->clock = devm_clk_get(rcdu->dev, name); > if (IS_ERR(rcrtc->clock)) { > dev_err(rcdu->dev, "no clock for DU channel %u\n", hwindex); > @@ -1251,6 +1317,14 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, > return ret; > } > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + clk = devm_clk_get(rcdu->dev, "vclk"); > + if (!IS_ERR(clk)) > + rcrtc->extclock = clk; > + else if (PTR_ERR(clk) == -EPROBE_DEFER) > + return -EPROBE_DEFER; > + } > + > init_waitqueue_head(&rcrtc->flip_wait); > init_waitqueue_head(&rcrtc->vblank_wait); > spin_lock_init(&rcrtc->vblank_lock); > @@ -1287,27 +1361,29 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, > > drm_crtc_helper_add(crtc, &crtc_helper_funcs); > > - /* Register the interrupt handler. */ > - if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { > - /* The IRQ's are associated with the CRTC (sw)index. */ > - irq = platform_get_irq(pdev, swindex); > - irqflags = 0; > - } else { > - irq = platform_get_irq(pdev, 0); > - irqflags = IRQF_SHARED; > - } > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > + /* Register the interrupt handler. */ > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { > + /* The IRQ's are associated with the CRTC (sw)index. */ > + irq = platform_get_irq(pdev, swindex); > + irqflags = 0; > + } else { > + irq = platform_get_irq(pdev, 0); > + irqflags = IRQF_SHARED; > + } > > - if (irq < 0) { > - dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); > - return irq; > - } > + if (irq < 0) { > + dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); > + return irq; > + } > > - ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, > - dev_name(rcdu->dev), rcrtc); > - if (ret < 0) { > - dev_err(rcdu->dev, > - "failed to register IRQ for CRTC %u\n", swindex); > - return ret; > + ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, > + dev_name(rcdu->dev), rcrtc); > + if (ret < 0) { > + dev_err(rcdu->dev, > + "failed to register IRQ for CRTC %u\n", swindex); > + return ret; > + } > } > > rcar_du_crtc_crc_init(rcrtc); > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > index 66e8839db708..4ec2db46b131 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > @@ -28,6 +28,7 @@ struct rcar_du_vsp; > * @dev: the DU device > * @clock: the CRTC functional clock > * @extclock: external pixel dot clock (optional) > + * @rstc: reset controller (optional) > * @mmio_offset: offset of the CRTC registers in the DU MMIO block > * @index: CRTC hardware index > * @initialized: whether the CRTC has been initialized and clocks enabled > @@ -50,6 +51,7 @@ struct rcar_du_crtc { > struct rcar_du_device *dev; > struct clk *clock; > struct clk *extclock; > + struct reset_control *rstc; > unsigned int mmio_offset; > unsigned int index; > bool initialized; > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c > index f92636001f10..57edc3b3154f 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c > +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c > @@ -596,6 +596,28 @@ static const struct rcar_du_device_info rcar_du_r8a779a0_info = { > .dsi_clk_mask = BIT(1) | BIT(0), > }; > > +static const struct rcar_du_device_info rcar_du_r9a07g044l_info = { > + .gen = 3, > + .features = RCAR_DU_FEATURE_CRTC_IRQ > + | RCAR_DU_FEATURE_CRTC_CLOCK > + | RCAR_DU_FEATURE_RZG2L > + | RCAR_DU_FEATURE_VSP1_SOURCE, > + .channels_mask = BIT(0), > + .routes = { > + [RCAR_DU_OUTPUT_DPAD0] = { > + .possible_crtcs = BIT(0), > + .port = 0, > + }, > + [RCAR_DU_OUTPUT_DSI0] = { > + .possible_crtcs = BIT(0), > + .port = 1, > + }, > + }, > + .num_rpf = 2, > + .max_width = 1920, > + .max_height = 1080, > +}; > + > 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 }, > @@ -621,6 +643,7 @@ static const struct of_device_id rcar_du_of_table[] = { > { .compatible = "renesas,du-r8a77990", .data = &rcar_du_r8a7799x_info }, > { .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info }, > { .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info }, > + { .compatible = "renesas,du-r9a07g044l", .data = &rcar_du_r9a07g044l_info }, > { } > }; > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h > index e28c2df66f8e..47da9da71bca 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h > +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h > @@ -33,6 +33,7 @@ struct rcar_du_device; > #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */ > #define RCAR_DU_FEATURE_PLANE BIT(5) /* HW supports DU planes */ > #define RCAR_DU_FEATURE_GROUP BIT(6) /* HW supports DU groups */ > +#define RCAR_DU_FEATURE_RZG2L BIT(7) /* Use RZ/G2L registers */ > > #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */ > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c > index 3612bc9eab1b..632271c2881d 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c > +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c > @@ -224,6 +224,11 @@ static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start) > { > struct rcar_du_device *rcdu = rgrp->dev; > > + if (!rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_GROUP)) { > + rcar_du_write(rgrp->dev, DU_MCR0, start ? DU_MCR0_DI_EN : 0); > + return; > + } > + > /* > * Group start/stop is controlled by the DRES and DEN bits of DSYSR0 > * for the first group and DSYSR2 for the second group. On most DU > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h > index 1cdaa51eb9ac..9e5c8d286bfc 100644 > --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h > +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h > @@ -15,6 +15,58 @@ > #define DU2_REG_OFFSET 0x40000 > #define DU3_REG_OFFSET 0x70000 > > +/* ----------------------------------------------------------------------------- > + * RZ/G2L Display Registers > + */ > + > +#define DU_MCR0 0x00 > +#define DU_MCR0_DPI_OE BIT(0) > +#define DU_MCR0_DI_EN BIT(8) > +#define DU_MCR0_PB_CLR BIT(16) > + > +#define DU_MSR0 0x04 > +#define DU_MSR0_ST_DI_BSY BIT(8) > +#define DU_MSR0_ST_PB_WFULL BIT(16) > +#define DU_MSR0_ST_PB_WINIT BIT(18) > +#define DU_MSR0_ST_PB_REMPTY BIT(20) > +#define DU_MSR0_ST_PB_RUF BIT(21) > +#define DU_MSR0_ST_PB_RINIT BIT(22) > + > +#define DU_MSR1 0x08 > + > +#define DU_IMR0 0x0C > +#define DU_MSR0_IM_PB_RUF BIT(0) > + > +#define DU_DITR0 0x10 > +#define DU_DITR0_DPI_CLKMD BIT(0) > +#define DU_DITR0_DEMD_LOW 0x0 > +#define DU_DITR0_DEMD_HIGH (BIT(8) | BIT(9)) > +#define DU_DITR0_VSPOL BIT(16) > +#define DU_DITR0_HSPOL BIT(17) > + > +#define DU_DITR1 0x14 > +#define DU_DITR1_VSA(x) ((x) << 0) > +#define DU_DITR1_VACTIVE(x) ((x) << 16) > + > +#define DU_DITR2 0x18 > +#define DU_DITR2_VBP(x) ((x) << 0) > +#define DU_DITR2_VFP(x) ((x) << 16) > + > +#define DU_DITR3 0x1C > +#define DU_DITR3_HSA(x) ((x) << 0) > +#define DU_DITR3_HACTIVE(x) ((x) << 16) > + > +#define DU_DITR4 0x20 > +#define DU_DITR4_HBP(x) ((x) << 0) > +#define DU_DITR4_HFP(x) ((x) << 16) > + > +#define DU_DITR5 0x24 > +#define DU_DITR5_VSFT(x) ((x) << 0) > +#define DU_DITR5_HSFT(x) ((x) << 16) > + > +#define DU_PBCR0 0x4C > +#define DU_PBCR0_PB_DEP(x) ((x) << 0) > + > /* ----------------------------------------------------------------------------- > * Display Control Registers > */
Hi Laurent, Thanks for the feedback. > Subject: Re: [RFC 18/28] drm: rcar-du: Add RZ/G2L LCDC Support > > Hi Biju, > > Thank you for the patch. > > On Wed, Jan 12, 2022 at 05:46:02PM +0000, Biju Das wrote: > > The LCD controller is composed of Frame Compression Processor (FCPVD), > > Video Signal Processor (VSPD), and Display Unit (DU). > > > > It has DPI/DSI interfaces and supports a maximum resolution of 1080p > > along with 2 rpf's to support blending of two picture layers and > > raster operations (ROPs). > > > > A feature bit for RZ/G2L SoC is introduced to support RZ/G2L with the > > rest of the SoC supported by this driver. > > The RZ/G2L DU seems to be a completely different IP core than the DU in R- > Car and other RZ SoCs. I think it should be supported by a separate > driver, or at least with a different (and modularized) CRTC > implementation. This patch has too many RCAR_DU_FEATURE_RZG2L checks. Agreed, May be will create separate RZ/G2L specific DU driver based on RCar-DU driver removing the plane, Group, CMM, LVDS, HDMI and CRTC adaptation for RZ/G2L and will send next version for feedback. Regards, Biju > > > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> > > --- > > drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 148 ++++++++++++++++++------ > > drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 + > > drivers/gpu/drm/rcar-du/rcar_du_drv.c | 23 ++++ > > drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 + > > drivers/gpu/drm/rcar-du/rcar_du_group.c | 5 + > > drivers/gpu/drm/rcar-du/rcar_du_regs.h | 52 +++++++++ > > 6 files changed, 195 insertions(+), 36 deletions(-) > > > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > > b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > > index 521446890d3d..aea9178f3e7d 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c > > @@ -10,6 +10,7 @@ > > #include <linux/clk.h> > > #include <linux/mutex.h> > > #include <linux/platform_device.h> > > +#include <linux/reset.h> > > #include <linux/sys_soc.h> > > > > #include <drm/drm_atomic.h> > > @@ -219,6 +220,42 @@ static void rcar_du_crtc_set_display_timing(struct > rcar_du_crtc *rcrtc) > > u32 dsmr; > > u32 escr; > > > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + u32 ditr0, ditr1, ditr2, ditr3, ditr4, ditr5, pbcr0; > > + > > + clk_set_rate(rcrtc->extclock, mode_clock); > > + > > + ditr0 = (DU_DITR0_DEMD_HIGH > > + | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DU_DITR0_VSPOL : 0) > > + | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DU_DITR0_HSPOL : > 0)); > > + > > + ditr1 = DU_DITR1_VSA(mode->vsync_end - mode->vsync_start) > > + | DU_DITR1_VACTIVE(mode->vdisplay); > > + > > + ditr2 = DU_DITR2_VBP(mode->vtotal - mode->vsync_end) > > + | DU_DITR2_VFP(mode->vsync_start - mode->vdisplay); > > + > > + ditr3 = DU_DITR3_HSA(mode->hsync_end - mode->hsync_start) > > + | DU_DITR3_HACTIVE(mode->hdisplay); > > + > > + ditr4 = DU_DITR4_HBP(mode->htotal - mode->hsync_end) > > + | DU_DITR4_HFP(mode->hsync_start - mode->hdisplay); > > + > > + ditr5 = DU_DITR5_VSFT(0) | DU_DITR5_HSFT(0); > > + > > + pbcr0 = DU_PBCR0_PB_DEP(0x1F); > > + > > + rcar_du_write(rcdu, DU_DITR0, ditr0); > > + rcar_du_write(rcdu, DU_DITR1, ditr1); > > + rcar_du_write(rcdu, DU_DITR2, ditr2); > > + rcar_du_write(rcdu, DU_DITR3, ditr3); > > + rcar_du_write(rcdu, DU_DITR4, ditr4); > > + rcar_du_write(rcdu, DU_DITR5, ditr5); > > + rcar_du_write(rcdu, DU_PBCR0, pbcr0); > > + > > + return; > > + } > > + > > if (rcdu->info->dpll_mask & (1 << rcrtc->index)) { > > unsigned long target = mode_clock; > > struct dpll_info dpll = { 0 }; > > @@ -531,16 +568,23 @@ static void rcar_du_cmm_setup(struct drm_crtc > > *crtc) > > > > static void rcar_du_crtc_setup(struct rcar_du_crtc *rcrtc) { > > - /* Set display off and background to black */ > > - rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); > > - rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); > > + struct rcar_du_device *rcdu = rcrtc->dev; > > > > - /* Configure display timings and output routing */ > > - rcar_du_crtc_set_display_timing(rcrtc); > > - rcar_du_group_set_routing(rcrtc->group); > > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + /* Set display off and background to black */ > > + rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); > > + rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); > > > > - /* Start with all planes disabled. */ > > - rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, > 0); > > + /* Configure display timings and output routing */ > > + rcar_du_crtc_set_display_timing(rcrtc); > > + rcar_du_group_set_routing(rcrtc->group); > > + > > + /* Start with all planes disabled. */ > > + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : > DS1PR, 0); > > + } else { > > + /* Configure display timings and output routing */ > > + rcar_du_crtc_set_display_timing(rcrtc); > > + } > > > > /* Enable the VSP compositor. */ > > if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) @@ -561,6 > > +605,12 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) > > if (rcrtc->initialized) > > return 0; > > > > + if (rcrtc->rstc) { > > + ret = reset_control_deassert(rcrtc->rstc); > > + if (ret < 0) > > + goto error_reset; > > + } > > + > > ret = clk_prepare_enable(rcrtc->clock); > > if (ret < 0) > > return ret; > > @@ -582,6 +632,9 @@ static int rcar_du_crtc_get(struct rcar_du_crtc > *rcrtc) > > clk_disable_unprepare(rcrtc->extclock); > > error_clock: > > clk_disable_unprepare(rcrtc->clock); > > +error_reset: > > + if (rcrtc->rstc) > > + reset_control_assert(rcrtc->rstc); > > return ret; > > } > > > > @@ -591,23 +644,28 @@ static void rcar_du_crtc_put(struct rcar_du_crtc > > *rcrtc) > > > > clk_disable_unprepare(rcrtc->extclock); > > clk_disable_unprepare(rcrtc->clock); > > + if (rcrtc->rstc) > > + reset_control_assert(rcrtc->rstc); > > > > rcrtc->initialized = false; > > } > > > > static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) { > > + struct rcar_du_device *rcdu = rcrtc->dev; > > bool interlaced; > > > > - /* > > - * Select master sync mode. This enables display operation in master > > - * sync mode (with the HSYNC and VSYNC signals configured as outputs > and > > - * actively driven). > > - */ > > - interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; > > - rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, > > - (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | > > - DSYSR_TVM_MASTER); > > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + /* > > + * Select master sync mode. This enables display operation in > master > > + * sync mode (with the HSYNC and VSYNC signals configured as > outputs and > > + * actively driven). > > + */ > > + interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; > > + rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | > DSYSR_SCM_MASK, > > + (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | > > + DSYSR_TVM_MASTER); > > + } > > > > rcar_du_group_start_stop(rcrtc->group, true); } @@ -1229,6 +1287,14 > > @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int > swindex, > > name = NULL; > > } > > > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + rcrtc->rstc = devm_reset_control_get_shared(rcdu->dev, NULL); > > + if (IS_ERR(rcrtc->rstc)) { > > + dev_err(rcdu->dev, "can't get cpg reset\n"); > > + return PTR_ERR(rcrtc->rstc); > > + } > > + } > > + > > rcrtc->clock = devm_clk_get(rcdu->dev, name); > > if (IS_ERR(rcrtc->clock)) { > > dev_err(rcdu->dev, "no clock for DU channel %u\n", hwindex); > @@ > > -1251,6 +1317,14 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, > unsigned int swindex, > > return ret; > > } > > > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + clk = devm_clk_get(rcdu->dev, "vclk"); > > + if (!IS_ERR(clk)) > > + rcrtc->extclock = clk; > > + else if (PTR_ERR(clk) == -EPROBE_DEFER) > > + return -EPROBE_DEFER; > > + } > > + > > init_waitqueue_head(&rcrtc->flip_wait); > > init_waitqueue_head(&rcrtc->vblank_wait); > > spin_lock_init(&rcrtc->vblank_lock); > > @@ -1287,27 +1361,29 @@ int rcar_du_crtc_create(struct rcar_du_group > > *rgrp, unsigned int swindex, > > > > drm_crtc_helper_add(crtc, &crtc_helper_funcs); > > > > - /* Register the interrupt handler. */ > > - if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { > > - /* The IRQ's are associated with the CRTC (sw)index. */ > > - irq = platform_get_irq(pdev, swindex); > > - irqflags = 0; > > - } else { > > - irq = platform_get_irq(pdev, 0); > > - irqflags = IRQF_SHARED; > > - } > > + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { > > + /* Register the interrupt handler. */ > > + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { > > + /* The IRQ's are associated with the CRTC (sw)index. */ > > + irq = platform_get_irq(pdev, swindex); > > + irqflags = 0; > > + } else { > > + irq = platform_get_irq(pdev, 0); > > + irqflags = IRQF_SHARED; > > + } > > > > - if (irq < 0) { > > - dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); > > - return irq; > > - } > > + if (irq < 0) { > > + dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); > > + return irq; > > + } > > > > - ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, > > - dev_name(rcdu->dev), rcrtc); > > - if (ret < 0) { > > - dev_err(rcdu->dev, > > - "failed to register IRQ for CRTC %u\n", swindex); > > - return ret; > > + ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, > irqflags, > > + dev_name(rcdu->dev), rcrtc); > > + if (ret < 0) { > > + dev_err(rcdu->dev, > > + "failed to register IRQ for CRTC %u\n", swindex); > > + return ret; > > + } > > } > > > > rcar_du_crtc_crc_init(rcrtc); > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > > b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > > index 66e8839db708..4ec2db46b131 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h > > @@ -28,6 +28,7 @@ struct rcar_du_vsp; > > * @dev: the DU device > > * @clock: the CRTC functional clock > > * @extclock: external pixel dot clock (optional) > > + * @rstc: reset controller (optional) > > * @mmio_offset: offset of the CRTC registers in the DU MMIO block > > * @index: CRTC hardware index > > * @initialized: whether the CRTC has been initialized and clocks > > enabled @@ -50,6 +51,7 @@ struct rcar_du_crtc { > > struct rcar_du_device *dev; > > struct clk *clock; > > struct clk *extclock; > > + struct reset_control *rstc; > > unsigned int mmio_offset; > > unsigned int index; > > bool initialized; > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c > > b/drivers/gpu/drm/rcar-du/rcar_du_drv.c > > index f92636001f10..57edc3b3154f 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c > > @@ -596,6 +596,28 @@ static const struct rcar_du_device_info > rcar_du_r8a779a0_info = { > > .dsi_clk_mask = BIT(1) | BIT(0), > > }; > > > > +static const struct rcar_du_device_info rcar_du_r9a07g044l_info = { > > + .gen = 3, > > + .features = RCAR_DU_FEATURE_CRTC_IRQ > > + | RCAR_DU_FEATURE_CRTC_CLOCK > > + | RCAR_DU_FEATURE_RZG2L > > + | RCAR_DU_FEATURE_VSP1_SOURCE, > > + .channels_mask = BIT(0), > > + .routes = { > > + [RCAR_DU_OUTPUT_DPAD0] = { > > + .possible_crtcs = BIT(0), > > + .port = 0, > > + }, > > + [RCAR_DU_OUTPUT_DSI0] = { > > + .possible_crtcs = BIT(0), > > + .port = 1, > > + }, > > + }, > > + .num_rpf = 2, > > + .max_width = 1920, > > + .max_height = 1080, > > +}; > > + > > 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 > > }, @@ -621,6 +643,7 @@ static const struct of_device_id > rcar_du_of_table[] = { > > { .compatible = "renesas,du-r8a77990", .data = > &rcar_du_r8a7799x_info }, > > { .compatible = "renesas,du-r8a77995", .data = > &rcar_du_r8a7799x_info }, > > { .compatible = "renesas,du-r8a779a0", .data = > > &rcar_du_r8a779a0_info }, > > + { .compatible = "renesas,du-r9a07g044l", .data = > > +&rcar_du_r9a07g044l_info }, > > { } > > }; > > > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h > > b/drivers/gpu/drm/rcar-du/rcar_du_drv.h > > index e28c2df66f8e..47da9da71bca 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h > > @@ -33,6 +33,7 @@ struct rcar_du_device; > > #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync > modes */ > > #define RCAR_DU_FEATURE_PLANE BIT(5) /* HW supports DU > planes */ > > #define RCAR_DU_FEATURE_GROUP BIT(6) /* HW supports DU > groups */ > > +#define RCAR_DU_FEATURE_RZG2L BIT(7) /* Use RZ/G2L > registers */ > > > > #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 > bytes */ > > > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c > > b/drivers/gpu/drm/rcar-du/rcar_du_group.c > > index 3612bc9eab1b..632271c2881d 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c > > @@ -224,6 +224,11 @@ static void __rcar_du_group_start_stop(struct > > rcar_du_group *rgrp, bool start) { > > struct rcar_du_device *rcdu = rgrp->dev; > > > > + if (!rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_GROUP)) { > > + rcar_du_write(rgrp->dev, DU_MCR0, start ? DU_MCR0_DI_EN : 0); > > + return; > > + } > > + > > /* > > * Group start/stop is controlled by the DRES and DEN bits of DSYSR0 > > * for the first group and DSYSR2 for the second group. On most DU > > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h > > b/drivers/gpu/drm/rcar-du/rcar_du_regs.h > > index 1cdaa51eb9ac..9e5c8d286bfc 100644 > > --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h > > +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h > > @@ -15,6 +15,58 @@ > > #define DU2_REG_OFFSET 0x40000 > > #define DU3_REG_OFFSET 0x70000 > > > > +/* > > +--------------------------------------------------------------------- > > +-------- > > + * RZ/G2L Display Registers > > + */ > > + > > +#define DU_MCR0 0x00 > > +#define DU_MCR0_DPI_OE BIT(0) > > +#define DU_MCR0_DI_EN BIT(8) > > +#define DU_MCR0_PB_CLR BIT(16) > > + > > +#define DU_MSR0 0x04 > > +#define DU_MSR0_ST_DI_BSY BIT(8) > > +#define DU_MSR0_ST_PB_WFULL BIT(16) > > +#define DU_MSR0_ST_PB_WINIT BIT(18) > > +#define DU_MSR0_ST_PB_REMPTY BIT(20) > > +#define DU_MSR0_ST_PB_RUF BIT(21) > > +#define DU_MSR0_ST_PB_RINIT BIT(22) > > + > > +#define DU_MSR1 0x08 > > + > > +#define DU_IMR0 0x0C > > +#define DU_MSR0_IM_PB_RUF BIT(0) > > + > > +#define DU_DITR0 0x10 > > +#define DU_DITR0_DPI_CLKMD BIT(0) > > +#define DU_DITR0_DEMD_LOW 0x0 > > +#define DU_DITR0_DEMD_HIGH (BIT(8) | BIT(9)) > > +#define DU_DITR0_VSPOL BIT(16) > > +#define DU_DITR0_HSPOL BIT(17) > > + > > +#define DU_DITR1 0x14 > > +#define DU_DITR1_VSA(x) ((x) << 0) > > +#define DU_DITR1_VACTIVE(x) ((x) << 16) > > + > > +#define DU_DITR2 0x18 > > +#define DU_DITR2_VBP(x) ((x) << 0) > > +#define DU_DITR2_VFP(x) ((x) << 16) > > + > > +#define DU_DITR3 0x1C > > +#define DU_DITR3_HSA(x) ((x) << 0) > > +#define DU_DITR3_HACTIVE(x) ((x) << 16) > > + > > +#define DU_DITR4 0x20 > > +#define DU_DITR4_HBP(x) ((x) << 0) > > +#define DU_DITR4_HFP(x) ((x) << 16) > > + > > +#define DU_DITR5 0x24 > > +#define DU_DITR5_VSFT(x) ((x) << 0) > > +#define DU_DITR5_HSFT(x) ((x) << 16) > > + > > +#define DU_PBCR0 0x4C > > +#define DU_PBCR0_PB_DEP(x) ((x) << 0) > > + > > /* -------------------------------------------------------------------- > --------- > > * Display Control Registers > > */ > > -- > Regards, > > Laurent Pinchart
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 521446890d3d..aea9178f3e7d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -10,6 +10,7 @@ #include <linux/clk.h> #include <linux/mutex.h> #include <linux/platform_device.h> +#include <linux/reset.h> #include <linux/sys_soc.h> #include <drm/drm_atomic.h> @@ -219,6 +220,42 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) u32 dsmr; u32 escr; + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + u32 ditr0, ditr1, ditr2, ditr3, ditr4, ditr5, pbcr0; + + clk_set_rate(rcrtc->extclock, mode_clock); + + ditr0 = (DU_DITR0_DEMD_HIGH + | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DU_DITR0_VSPOL : 0) + | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DU_DITR0_HSPOL : 0)); + + ditr1 = DU_DITR1_VSA(mode->vsync_end - mode->vsync_start) + | DU_DITR1_VACTIVE(mode->vdisplay); + + ditr2 = DU_DITR2_VBP(mode->vtotal - mode->vsync_end) + | DU_DITR2_VFP(mode->vsync_start - mode->vdisplay); + + ditr3 = DU_DITR3_HSA(mode->hsync_end - mode->hsync_start) + | DU_DITR3_HACTIVE(mode->hdisplay); + + ditr4 = DU_DITR4_HBP(mode->htotal - mode->hsync_end) + | DU_DITR4_HFP(mode->hsync_start - mode->hdisplay); + + ditr5 = DU_DITR5_VSFT(0) | DU_DITR5_HSFT(0); + + pbcr0 = DU_PBCR0_PB_DEP(0x1F); + + rcar_du_write(rcdu, DU_DITR0, ditr0); + rcar_du_write(rcdu, DU_DITR1, ditr1); + rcar_du_write(rcdu, DU_DITR2, ditr2); + rcar_du_write(rcdu, DU_DITR3, ditr3); + rcar_du_write(rcdu, DU_DITR4, ditr4); + rcar_du_write(rcdu, DU_DITR5, ditr5); + rcar_du_write(rcdu, DU_PBCR0, pbcr0); + + return; + } + if (rcdu->info->dpll_mask & (1 << rcrtc->index)) { unsigned long target = mode_clock; struct dpll_info dpll = { 0 }; @@ -531,16 +568,23 @@ static void rcar_du_cmm_setup(struct drm_crtc *crtc) static void rcar_du_crtc_setup(struct rcar_du_crtc *rcrtc) { - /* Set display off and background to black */ - rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); - rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); + struct rcar_du_device *rcdu = rcrtc->dev; - /* Configure display timings and output routing */ - rcar_du_crtc_set_display_timing(rcrtc); - rcar_du_group_set_routing(rcrtc->group); + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + /* Set display off and background to black */ + rcar_du_crtc_write(rcrtc, DOOR, DOOR_RGB(0, 0, 0)); + rcar_du_crtc_write(rcrtc, BPOR, BPOR_RGB(0, 0, 0)); - /* Start with all planes disabled. */ - rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); + /* Configure display timings and output routing */ + rcar_du_crtc_set_display_timing(rcrtc); + rcar_du_group_set_routing(rcrtc->group); + + /* Start with all planes disabled. */ + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, 0); + } else { + /* Configure display timings and output routing */ + rcar_du_crtc_set_display_timing(rcrtc); + } /* Enable the VSP compositor. */ if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE)) @@ -561,6 +605,12 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) if (rcrtc->initialized) return 0; + if (rcrtc->rstc) { + ret = reset_control_deassert(rcrtc->rstc); + if (ret < 0) + goto error_reset; + } + ret = clk_prepare_enable(rcrtc->clock); if (ret < 0) return ret; @@ -582,6 +632,9 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) clk_disable_unprepare(rcrtc->extclock); error_clock: clk_disable_unprepare(rcrtc->clock); +error_reset: + if (rcrtc->rstc) + reset_control_assert(rcrtc->rstc); return ret; } @@ -591,23 +644,28 @@ static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) clk_disable_unprepare(rcrtc->extclock); clk_disable_unprepare(rcrtc->clock); + if (rcrtc->rstc) + reset_control_assert(rcrtc->rstc); rcrtc->initialized = false; } static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) { + struct rcar_du_device *rcdu = rcrtc->dev; bool interlaced; - /* - * Select master sync mode. This enables display operation in master - * sync mode (with the HSYNC and VSYNC signals configured as outputs and - * actively driven). - */ - interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; - rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, - (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | - DSYSR_TVM_MASTER); + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + /* + * Select master sync mode. This enables display operation in master + * sync mode (with the HSYNC and VSYNC signals configured as outputs and + * actively driven). + */ + interlaced = rcrtc->crtc.mode.flags & DRM_MODE_FLAG_INTERLACE; + rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_TVM_MASK | DSYSR_SCM_MASK, + (interlaced ? DSYSR_SCM_INT_VIDEO : 0) | + DSYSR_TVM_MASTER); + } rcar_du_group_start_stop(rcrtc->group, true); } @@ -1229,6 +1287,14 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, name = NULL; } + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + rcrtc->rstc = devm_reset_control_get_shared(rcdu->dev, NULL); + if (IS_ERR(rcrtc->rstc)) { + dev_err(rcdu->dev, "can't get cpg reset\n"); + return PTR_ERR(rcrtc->rstc); + } + } + rcrtc->clock = devm_clk_get(rcdu->dev, name); if (IS_ERR(rcrtc->clock)) { dev_err(rcdu->dev, "no clock for DU channel %u\n", hwindex); @@ -1251,6 +1317,14 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, return ret; } + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + clk = devm_clk_get(rcdu->dev, "vclk"); + if (!IS_ERR(clk)) + rcrtc->extclock = clk; + else if (PTR_ERR(clk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + } + init_waitqueue_head(&rcrtc->flip_wait); init_waitqueue_head(&rcrtc->vblank_wait); spin_lock_init(&rcrtc->vblank_lock); @@ -1287,27 +1361,29 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int swindex, drm_crtc_helper_add(crtc, &crtc_helper_funcs); - /* Register the interrupt handler. */ - if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { - /* The IRQ's are associated with the CRTC (sw)index. */ - irq = platform_get_irq(pdev, swindex); - irqflags = 0; - } else { - irq = platform_get_irq(pdev, 0); - irqflags = IRQF_SHARED; - } + if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_RZG2L)) { + /* Register the interrupt handler. */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ)) { + /* The IRQ's are associated with the CRTC (sw)index. */ + irq = platform_get_irq(pdev, swindex); + irqflags = 0; + } else { + irq = platform_get_irq(pdev, 0); + irqflags = IRQF_SHARED; + } - if (irq < 0) { - dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); - return irq; - } + if (irq < 0) { + dev_err(rcdu->dev, "no IRQ for CRTC %u\n", swindex); + return irq; + } - ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, - dev_name(rcdu->dev), rcrtc); - if (ret < 0) { - dev_err(rcdu->dev, - "failed to register IRQ for CRTC %u\n", swindex); - return ret; + ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, + dev_name(rcdu->dev), rcrtc); + if (ret < 0) { + dev_err(rcdu->dev, + "failed to register IRQ for CRTC %u\n", swindex); + return ret; + } } rcar_du_crtc_crc_init(rcrtc); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h index 66e8839db708..4ec2db46b131 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h @@ -28,6 +28,7 @@ struct rcar_du_vsp; * @dev: the DU device * @clock: the CRTC functional clock * @extclock: external pixel dot clock (optional) + * @rstc: reset controller (optional) * @mmio_offset: offset of the CRTC registers in the DU MMIO block * @index: CRTC hardware index * @initialized: whether the CRTC has been initialized and clocks enabled @@ -50,6 +51,7 @@ struct rcar_du_crtc { struct rcar_du_device *dev; struct clk *clock; struct clk *extclock; + struct reset_control *rstc; unsigned int mmio_offset; unsigned int index; bool initialized; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index f92636001f10..57edc3b3154f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -596,6 +596,28 @@ static const struct rcar_du_device_info rcar_du_r8a779a0_info = { .dsi_clk_mask = BIT(1) | BIT(0), }; +static const struct rcar_du_device_info rcar_du_r9a07g044l_info = { + .gen = 3, + .features = RCAR_DU_FEATURE_CRTC_IRQ + | RCAR_DU_FEATURE_CRTC_CLOCK + | RCAR_DU_FEATURE_RZG2L + | RCAR_DU_FEATURE_VSP1_SOURCE, + .channels_mask = BIT(0), + .routes = { + [RCAR_DU_OUTPUT_DPAD0] = { + .possible_crtcs = BIT(0), + .port = 0, + }, + [RCAR_DU_OUTPUT_DSI0] = { + .possible_crtcs = BIT(0), + .port = 1, + }, + }, + .num_rpf = 2, + .max_width = 1920, + .max_height = 1080, +}; + 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 }, @@ -621,6 +643,7 @@ static const struct of_device_id rcar_du_of_table[] = { { .compatible = "renesas,du-r8a77990", .data = &rcar_du_r8a7799x_info }, { .compatible = "renesas,du-r8a77995", .data = &rcar_du_r8a7799x_info }, { .compatible = "renesas,du-r8a779a0", .data = &rcar_du_r8a779a0_info }, + { .compatible = "renesas,du-r9a07g044l", .data = &rcar_du_r9a07g044l_info }, { } }; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index e28c2df66f8e..47da9da71bca 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -33,6 +33,7 @@ struct rcar_du_device; #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */ #define RCAR_DU_FEATURE_PLANE BIT(5) /* HW supports DU planes */ #define RCAR_DU_FEATURE_GROUP BIT(6) /* HW supports DU groups */ +#define RCAR_DU_FEATURE_RZG2L BIT(7) /* Use RZ/G2L registers */ #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 3612bc9eab1b..632271c2881d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -224,6 +224,11 @@ static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start) { struct rcar_du_device *rcdu = rgrp->dev; + if (!rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_GROUP)) { + rcar_du_write(rgrp->dev, DU_MCR0, start ? DU_MCR0_DI_EN : 0); + return; + } + /* * Group start/stop is controlled by the DRES and DEN bits of DSYSR0 * for the first group and DSYSR2 for the second group. On most DU diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h index 1cdaa51eb9ac..9e5c8d286bfc 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h @@ -15,6 +15,58 @@ #define DU2_REG_OFFSET 0x40000 #define DU3_REG_OFFSET 0x70000 +/* ----------------------------------------------------------------------------- + * RZ/G2L Display Registers + */ + +#define DU_MCR0 0x00 +#define DU_MCR0_DPI_OE BIT(0) +#define DU_MCR0_DI_EN BIT(8) +#define DU_MCR0_PB_CLR BIT(16) + +#define DU_MSR0 0x04 +#define DU_MSR0_ST_DI_BSY BIT(8) +#define DU_MSR0_ST_PB_WFULL BIT(16) +#define DU_MSR0_ST_PB_WINIT BIT(18) +#define DU_MSR0_ST_PB_REMPTY BIT(20) +#define DU_MSR0_ST_PB_RUF BIT(21) +#define DU_MSR0_ST_PB_RINIT BIT(22) + +#define DU_MSR1 0x08 + +#define DU_IMR0 0x0C +#define DU_MSR0_IM_PB_RUF BIT(0) + +#define DU_DITR0 0x10 +#define DU_DITR0_DPI_CLKMD BIT(0) +#define DU_DITR0_DEMD_LOW 0x0 +#define DU_DITR0_DEMD_HIGH (BIT(8) | BIT(9)) +#define DU_DITR0_VSPOL BIT(16) +#define DU_DITR0_HSPOL BIT(17) + +#define DU_DITR1 0x14 +#define DU_DITR1_VSA(x) ((x) << 0) +#define DU_DITR1_VACTIVE(x) ((x) << 16) + +#define DU_DITR2 0x18 +#define DU_DITR2_VBP(x) ((x) << 0) +#define DU_DITR2_VFP(x) ((x) << 16) + +#define DU_DITR3 0x1C +#define DU_DITR3_HSA(x) ((x) << 0) +#define DU_DITR3_HACTIVE(x) ((x) << 16) + +#define DU_DITR4 0x20 +#define DU_DITR4_HBP(x) ((x) << 0) +#define DU_DITR4_HFP(x) ((x) << 16) + +#define DU_DITR5 0x24 +#define DU_DITR5_VSFT(x) ((x) << 0) +#define DU_DITR5_HSFT(x) ((x) << 16) + +#define DU_PBCR0 0x4C +#define DU_PBCR0_PB_DEP(x) ((x) << 0) + /* ----------------------------------------------------------------------------- * Display Control Registers */
The LCD controller is composed of Frame Compression Processor (FCPVD), Video Signal Processor (VSPD), and Display Unit (DU). It has DPI/DSI interfaces and supports a maximum resolution of 1080p along with 2 rpf's to support blending of two picture layers and raster operations (ROPs). A feature bit for RZ/G2L SoC is introduced to support RZ/G2L with the rest of the SoC supported by this driver. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 148 ++++++++++++++++++------ drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 + drivers/gpu/drm/rcar-du/rcar_du_drv.c | 23 ++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 + drivers/gpu/drm/rcar-du/rcar_du_group.c | 5 + drivers/gpu/drm/rcar-du/rcar_du_regs.h | 52 +++++++++ 6 files changed, 195 insertions(+), 36 deletions(-)