Hi David, Can you help me review this patch? Thanks. Jianwei > -----Original Message----- > From: Jianwei Wang [mailto:jianwei.wang@xxxxxxxxxxxxx] > Sent: Friday, April 17, 2015 2:36 PM > To: airlied@xxxxxxxx; daniel.vetter@xxxxxxxxx; stefan@xxxxxxxx; Wood > Scott-B07421; dri-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > Jin Zhengxiong-R64188; Wang Jianwei-B52261; Wang Huan-B18965; Xiubo Li; > Wang Jianwei-B52261 > Subject: [PATCH v5 1/3] drm/layerscape: Add Freescale DCU DRM driver > > From: Jianwei Wang <b52261@xxxxxxxxxxxxx> > > This patch add support for Two Dimensional Animation and Compositing > Engine (2D-ACE) on the Freescale SoCs. > > 2D-ACE is a Freescale display controller. 2D-ACE describes the > functionality of the module extremely well its name is a value that cannot > be used as a token in programming languages. > Instead the valid token "DCU" is used to tag the register names and > function names. > > The Display Controller Unit (DCU) module is a system master that fetches > graphics stored in internal or external memory and displays them on a TFT > LCD panel. A wide range of panel sizes is supported and the timing of the > interface signals is highly configurable. > Graphics are read directly from memory and then blended in real-time, > which allows for dynamic content creation with minimal CPU intervention. > > The features: > (1) Full RGB888 output to TFT LCD panel. > (2) For the current LCD panel, WQVGA "480x272" is supported. > (3) Blending of each pixel using up to 4 source layers dependent on size > of panel. > (4) Each graphic layer can be placed with one pixel resolution in either > axis. > (5) Each graphic layer support RGB565 and RGB888 direct colors without > alpha channel and BGRA8888 BGRA4444 ARGB1555 direct colors with an alpha > channel and YUV422 format. > (6) Each graphic layer support alpha blending with 8-bit resolution. > > This is a simplified version, only one primary plane, one framebuffer > created for fbdev, one crtc, one connector for TFT LCD panel, an encoder. > > Signed-off-by: Alison Wang <b18965@xxxxxxxxxxxxx> > Signed-off-by: Xiubo Li <lixiubo@xxxxxxxxxxxxxxxxxxxx> > Signed-off-by: Jianwei Wang <jianwei.wang@xxxxxxxxxxxxx> > --- > > Changed in V5 > > - Update commit message > - Add layer registers initialization > - Remove unused functions > - Rename driver folder > - Move pixel clock control functions to fsl_dcu_drm_drv.c > - remove redundant enable the clock implicitly using regmap > - Add maintainer message > > Changed in V4: > > -This version doesn't have functionality changed Just a minor adjustment. > > Changed in V3: > > - Test driver on Vybrid board and add compatible string > - Remove unused functions > - set default crtc for encoder > - replace legacy functions with atomic help functions > - Set the unique name of the DRM device > - Implement irq handle function for vblank interrupt > > Changed in v2: > - Add atomic support > - Modify bindings file > - Rename node for compatibility > - Move platform related code out for compatibility > > .../devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt | 50 +++ > MAINTAINERS | 8 + > drivers/gpu/drm/Kconfig | 2 + > drivers/gpu/drm/Makefile | 1 + > drivers/gpu/drm/fsl-dcu/Kconfig | 17 + > drivers/gpu/drm/fsl-dcu/Makefile | 7 + > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.c | 194 +++++++++++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.h | 30 ++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c | 172 ++++++++++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.h | 22 ++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 373 > +++++++++++++++++++++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 223 ++++++++++++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_fbdev.c | 26 ++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c | 42 +++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.h | 17 + > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 192 +++++++++++ > drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h | 23 ++ > 17 files changed, 1399 insertions(+) > create mode 100644 Documentation/devicetree/bindings/drm/fsl- > dcu/fsl,dcu.txt > create mode 100644 drivers/gpu/drm/fsl-dcu/Kconfig create mode 100644 > drivers/gpu/drm/fsl-dcu/Makefile create mode 100644 drivers/gpu/drm/fsl- > dcu/fsl_dcu_drm_connector.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.h > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.h > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_fbdev.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.h > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c > create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h > > diff --git a/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt > b/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt > new file mode 100644 > index 0000000..bdc7d5b > --- /dev/null > +++ b/Documentation/devicetree/bindings/drm/fsl-dcu/fsl,dcu.txt > @@ -0,0 +1,49 @@ > +Device Tree bindings for Freescale DCU DRM Driver > + > +Required properties: > +- compatible: Should be one of > + * "fsl,ls1021a-dcu". > + * "fsl,vf610-dcu". > +- reg: Address and length of the register set for dcu. > +- clocks: From common clock binding: handle to dcu clock. > +- clock-names: From common clock binding: Shall be "dcu". > +- display: The phandle to display node. > + > +Required properties: > +- bits-per-pixel: <16> for RGB565, > + <24> for RGB888, > + <32> for RGB8888. > + > +Required timing node for dispplay sub-node: > +- display-timings: Refer to binding doc display-timing.txt for > details. > + > +Examples: > +dcu: dcu@2ce0000 { > + compatible = "fsl,ls1021a-dcu"; > + reg = <0x0 0x2ce0000 0x0 0x10000>; > + clocks = <&platform_clk 0>; > + clock-names = "dcu"; > + big-endian; > + display = <&display>; > + > + display: display@0 { > + bits-per-pixel = <24>; > + > + display-timings { > + native-mode = <&timing0>; > + timing0: nl4827hc19 { > + clock-frequency = <10870000>; > + hactive = <480>; > + vactive = <272>; > + hback-porch = <2>; > + hfront-porch = <2>; > + vback-porch = <1>; > + vfront-porch = <1>; > + hsync-len = <41>; > + vsync-len = <2>; > + hsync-active = <1>; > + vsync-active = <1>; > + }; > + }; > + }; > +}; > diff --git a/MAINTAINERS b/MAINTAINERS > index 885be14..a6cff2f4 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -3398,6 +3398,14 @@ S: Maintained > F: drivers/gpu/drm/imx/ > F: Documentation/devicetree/bindings/drm/imx/ > > +DRM DRIVERS FOR FREESCALE DCU > +M: Jianwei Wang <jianwei.wang@xxxxxxxxxxxxx> > +M: Alison Wang <alison.wang@xxxxxxxxxxxxx> > +L: dri-devel@xxxxxxxxxxxxxxxxxxxxx > +S: Supported > +F: drivers/gpu/drm/fsl-dcu/ > +F: Documentation/devicetree/bindings/drm/fsl-dcu/ > + > DRM DRIVERS FOR NVIDIA TEGRA > M: Thierry Reding <thierry.reding@xxxxxxxxx> > M: Terje Bergström <tbergstrom@xxxxxxxxxx> > diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index > 151a050..e64cf18 100644 > --- a/drivers/gpu/drm/Kconfig > +++ b/drivers/gpu/drm/Kconfig > @@ -199,6 +199,8 @@ source "drivers/gpu/drm/bochs/Kconfig" > > source "drivers/gpu/drm/msm/Kconfig" > > +source "drivers/gpu/drm/fsl-dcu/Kconfig" > + > source "drivers/gpu/drm/tegra/Kconfig" > > source "drivers/gpu/drm/panel/Kconfig" > diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index > 2c239b9..398eccf 100644 > --- a/drivers/gpu/drm/Makefile > +++ b/drivers/gpu/drm/Makefile > @@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_UDL) += udl/ > obj-$(CONFIG_DRM_AST) += ast/ > obj-$(CONFIG_DRM_ARMADA) += armada/ > obj-$(CONFIG_DRM_ATMEL_HLCDC) += atmel-hlcdc/ > +obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu/ > obj-$(CONFIG_DRM_RCAR_DU) += rcar-du/ > obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/ > obj-$(CONFIG_DRM_OMAP) += omapdrm/ > diff --git a/drivers/gpu/drm/fsl-dcu/Kconfig b/drivers/gpu/drm/fsl- > dcu/Kconfig new file mode 100644 index 0000000..e4f8df0 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/Kconfig > @@ -0,0 +1,17 @@ > +config DRM_FSL_DCU > + tristate "DRM Support for Freescale DCU" > + depends on DRM && OF && ARM > + select DRM_KMS_HELPER > + select DRM_KMS_CMA_HELPER > + select VIDEOMODE_HELPERS > + select BACKLIGHT_CLASS_DEVICE > + select BACKLIGHT_LCD_SUPPORT > + select REGMAP_MMIO > + select DRM_KMS_FB_HELPER > + select FB_SYS_FILLRECT > + select FB_SYS_COPYAREA > + select FB_SYS_IMAGEBLIT > + select FB_SYS_FOPS > + help > + Choose this option if you have an Freescale DCU chipset. > + If M is selected the module will be called fsl-dcu-drm. > diff --git a/drivers/gpu/drm/fsl-dcu/Makefile b/drivers/gpu/drm/fsl- > dcu/Makefile > new file mode 100644 > index 0000000..336b4a6 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/Makefile > @@ -0,0 +1,7 @@ > +fsl-dcu-drm-y := fsl_dcu_drm_drv.o \ > + fsl_dcu_drm_kms.o \ > + fsl_dcu_drm_connector.o \ > + fsl_dcu_drm_plane.o \ > + fsl_dcu_drm_crtc.o \ > + fsl_dcu_drm_fbdev.o > +obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu-drm.o > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.c > new file mode 100644 > index 0000000..799682d > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.c > @@ -0,0 +1,194 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <linux/backlight.h> > + > +#include <drm/drmP.h> > +#include <drm/drm_atomic_helper.h> > +#include <video/of_display_timing.h> > + > +#include "fsl_dcu_drm_drv.h" > +#include "fsl_dcu_drm_connector.h" > + > +static void fsl_dcu_drm_encoder_dpms(struct drm_encoder *encoder, int > +mode) { } > + > +static void fsl_dcu_drm_encoder_mode_prepare(struct drm_encoder > +*encoder) { } > + > +static void fsl_dcu_drm_encoder_mode_set(struct drm_encoder *encoder, > + struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode) { } > + > +static void fsl_dcu_drm_encoder_mode_commit(struct drm_encoder > +*encoder) { } > + > +static void fsl_dcu_drm_encoder_disable(struct drm_encoder *encoder) { > +} > + > +static int > +fsl_dcu_drm_encoder_atomic_check(struct drm_encoder *encoder, > + struct drm_crtc_state *crtc_state, > + struct drm_connector_state *conn_state) { > + return 0; > +} > + > +static void fsl_dcu_drm_encoder_destroy(struct drm_encoder *encoder) { > + drm_encoder_cleanup(encoder); > +} > + > +static const struct drm_encoder_helper_funcs encoder_helper_funcs = { > + .dpms = fsl_dcu_drm_encoder_dpms, > + .prepare = fsl_dcu_drm_encoder_mode_prepare, > + .commit = fsl_dcu_drm_encoder_mode_commit, > + .mode_set = fsl_dcu_drm_encoder_mode_set, > + .disable = fsl_dcu_drm_encoder_disable, > + .atomic_check = fsl_dcu_drm_encoder_atomic_check, }; > + > +static const struct drm_encoder_funcs encoder_funcs = { > + .destroy = fsl_dcu_drm_encoder_destroy, }; > + > +int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, > + struct drm_crtc *crtc) > +{ > + struct drm_encoder *encoder = &fsl_dev->encoder; > + int ret; > + > + encoder->possible_crtcs = 1; > + ret = drm_encoder_init(fsl_dev->ddev, encoder, &encoder_funcs, > + DRM_MODE_ENCODER_LVDS); > + if (ret < 0) > + return ret; > + > + drm_encoder_helper_add(encoder, &encoder_helper_funcs); > + encoder->crtc = crtc; > + > + return 0; > +} > + > +#define to_fsl_dcu_connector(connector) \ > + container_of(connector, struct fsl_dcu_drm_connector, connector) > + > +static int fsl_dcu_drm_connector_get_modes(struct drm_connector > +*connector) { > + struct drm_device *dev = connector->dev; > + struct device_node *display_np, *np = dev->dev->of_node; > + struct drm_display_mode *mode = drm_mode_create(connector->dev); > + int num_modes = 0; > + > + if (np) { > + display_np = of_parse_phandle(np, "display", 0); > + if (!display_np) { > + dev_err(dev->dev, "failed to find display phandle\n"); > + return num_modes; > + } > + of_get_drm_display_mode(display_np, mode, OF_USE_NATIVE_MODE); > + mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, > + drm_mode_probed_add(connector, mode); > + num_modes++; > + } > + > + return num_modes; > +} > + > +static int fsl_dcu_drm_connector_mode_valid(struct drm_connector > *connector, > + struct drm_display_mode *mode) { > + return MODE_OK; > +} > + > +static struct drm_encoder * > +fsl_dcu_drm_connector_best_encoder(struct drm_connector *connector) { > + struct fsl_dcu_drm_connector *fsl_con = > +to_fsl_dcu_connector(connector); > + > + return fsl_con->encoder; > +} > + > +static void fsl_dcu_drm_connector_destroy(struct drm_connector > +*connector) { > + drm_connector_unregister(connector); > + drm_connector_cleanup(connector); > +} > + > +static enum drm_connector_status > +fsl_dcu_drm_connector_detect(struct drm_connector *connector, bool > +force) { > + return connector_status_connected; > +} > + > +static const struct drm_connector_funcs fsl_dcu_drm_connector_funcs = { > + .dpms = drm_atomic_helper_connector_dpms, > + .reset = drm_atomic_helper_connector_reset, > + .detect = fsl_dcu_drm_connector_detect, > + .fill_modes = drm_helper_probe_single_connector_modes, > + .destroy = fsl_dcu_drm_connector_destroy, > + .atomic_duplicate_state = > drm_atomic_helper_connector_duplicate_state, > + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, > +}; > + > +static const struct drm_connector_helper_funcs connector_helper_funcs = { > + .get_modes = fsl_dcu_drm_connector_get_modes, > + .mode_valid = fsl_dcu_drm_connector_mode_valid, > + .best_encoder = fsl_dcu_drm_connector_best_encoder, > +}; > + > +int fsl_dcu_drm_connector_create(struct fsl_dcu_drm_device *fsl_dev, > + struct drm_encoder *encoder) > +{ > + struct drm_connector *connector = &fsl_dev->connector.connector; > + int ret; > + > + fsl_dev->connector.encoder = encoder; > + > + connector->display_info.width_mm = 0; > + connector->display_info.height_mm = 0; > + > + ret = drm_connector_init(fsl_dev->ddev, connector, > + &fsl_dcu_drm_connector_funcs, > + DRM_MODE_CONNECTOR_LVDS); > + if (ret < 0) > + return ret; > + > + connector->dpms = DRM_MODE_DPMS_OFF; > + drm_connector_helper_add(connector, &connector_helper_funcs); > + ret = drm_connector_register(connector); > + if (ret < 0) > + goto err_cleanup; > + > + ret = drm_mode_connector_attach_encoder(connector, encoder); > + if (ret < 0) > + goto err_sysfs; > + > + connector->encoder = encoder; > + > + drm_object_property_set_value > + (&connector->base, fsl_dev->ddev->mode_config.dpms_property, > + DRM_MODE_DPMS_OFF); > + > + return 0; > + > +err_sysfs: > + drm_connector_unregister(connector); > +err_cleanup: > + drm_connector_cleanup(connector); > + return ret; > +} > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.h > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.h > new file mode 100644 > index 0000000..8141a29 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_connector.h > @@ -0,0 +1,30 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef __FSL_DCU_DRM_CONNECTOR_H__ > +#define __FSL_DCU_DRM_CONNECTOR_H__ > + > +#include <drm/drmP.h> > +#include <drm/drm_crtc.h> > +#include "fsl_dcu_drm_crtc.h" > + > +struct fsl_dcu_drm_device; > +struct fsl_dcu_drm_connector { > + struct drm_connector connector; > + struct drm_encoder *encoder; > +}; > + > +int fsl_dcu_drm_encoder_create(struct fsl_dcu_drm_device *fsl_dev, > + struct drm_crtc *crtc); > +int fsl_dcu_drm_connector_create(struct fsl_dcu_drm_device *fsl_dev, > + struct drm_encoder *encoder); > + > +#endif /* __FSL_DCU_DRM_CONNECTOR_H__ */ > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > new file mode 100644 > index 0000000..4065a7c > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > @@ -0,0 +1,172 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <linux/regmap.h> > +#include <linux/clk.h> > + > +#include <drm/drmP.h> > +#include <drm/drm_atomic.h> > +#include <drm/drm_atomic_helper.h> > +#include <drm/drm_crtc.h> > + > +#include "fsl_dcu_drm_crtc.h" > +#include "fsl_dcu_drm_drv.h" > +#include "fsl_dcu_drm_plane.h" > + > +#define to_fsl_dcu_crtc(c) container_of(c, struct fsl_dcu_drm_crtc, > crtc) > + > +static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc) { > + struct drm_device *dev = crtc->dev; > + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; > + struct drm_display_mode *mode = &crtc->state->mode; > + uint32_t hbp, hfp, hsw, vbp, vfp, vsw, div, index; > + > + DBG(": set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", > + mode->base.id, mode->name, > + mode->vrefresh, mode->clock, > + mode->hdisplay, mode->hsync_start, > + mode->hsync_end, mode->htotal, > + mode->vdisplay, mode->vsync_start, > + mode->vsync_end, mode->vtotal, > + mode->type, mode->flags); > + > + index = drm_crtc_index(crtc); > + div = (uint32_t)clk_get_rate(fsl_dev->clk) / mode->clock / 1000; > + > + /* Configure timings: */ > + hbp = mode->htotal - mode->hsync_end; > + hfp = mode->hsync_start - mode->hdisplay; > + hsw = mode->hsync_end - mode->hsync_start; > + vbp = mode->vtotal - mode->vsync_end; > + vfp = mode->vsync_start - mode->vdisplay; > + vsw = mode->vsync_end - mode->vsync_start; > + > + regmap_write(fsl_dev->regmap, DCU_HSYN_PARA, > + DCU_HSYN_PARA_BP(hbp) | > + DCU_HSYN_PARA_PW(hsw) | > + DCU_HSYN_PARA_FP(hfp)); > + regmap_write(fsl_dev->regmap, DCU_VSYN_PARA, > + DCU_VSYN_PARA_BP(vbp) | > + DCU_VSYN_PARA_PW(vsw) | > + DCU_VSYN_PARA_FP(vfp)); > + regmap_write(fsl_dev->regmap, DCU_DISP_SIZE, > + DCU_DISP_SIZE_DELTA_Y(mode->vdisplay) | > + DCU_DISP_SIZE_DELTA_X(mode->hdisplay)); > + regmap_write(fsl_dev->regmap, DCU_DIV_RATIO, div); > + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, > +DCU_UPDATE_MODE_READREG); } > + > +static bool fsl_dcu_drm_crtc_mode_fixup(struct drm_crtc *crtc, > + const struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode) { > + return true; > +} > + > +static void fsl_dcu_drm_crtc_prepare(struct drm_crtc *crtc) { } > + > +/* Now enable the clocks, plane, pipe, and connectors that we set up. > +*/ static void fsl_dcu_drm_crtc_mode_commit(struct drm_crtc *crtc) { } > + > +static int fsl_dcu_drm_crtc_atomic_check(struct drm_crtc *crtc, > + struct drm_crtc_state *state) > +{ > + return 0; > +} > + > +static void fsl_dcu_drm_crtc_atomic_begin(struct drm_crtc *crtc) { } > + > +static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc *crtc) { } > + > +static void fsl_dcu_drm_disable_crtc(struct drm_crtc *crtc) { } > + > +static void fsl_dcu_drm_crtc_dpms(struct drm_crtc *crtc, int mode) { } > + > +static const struct drm_crtc_funcs fsl_dcu_drm_crtc_funcs = { > + .page_flip = drm_atomic_helper_page_flip, > + .set_config = drm_atomic_helper_set_config, > + .destroy = drm_crtc_cleanup, > + .reset = drm_atomic_helper_crtc_reset, > + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, > + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, > +}; > + > +static const struct drm_crtc_helper_funcs fsl_dcu_drm_crtc_helper_funcs = > { > + .disable = fsl_dcu_drm_disable_crtc, > + .mode_fixup = fsl_dcu_drm_crtc_mode_fixup, > + .mode_set = drm_helper_crtc_mode_set, > + .mode_set_nofb = fsl_dcu_drm_crtc_mode_set_nofb, > + .mode_set_base = drm_helper_crtc_mode_set_base, > + .prepare = fsl_dcu_drm_crtc_prepare, > + .commit = fsl_dcu_drm_crtc_mode_commit, > + .atomic_check = fsl_dcu_drm_crtc_atomic_check, > + .atomic_begin = fsl_dcu_drm_crtc_atomic_begin, > + .atomic_flush = fsl_dcu_drm_crtc_atomic_flush, > + .dpms = fsl_dcu_drm_crtc_dpms, > +}; > + > +int fsl_dcu_drm_crtc_create(struct fsl_dcu_drm_device *fsl_dev) { > + struct drm_plane *primary; > + struct drm_crtc *crtc = &fsl_dev->crtc; > + int i, ret; > + > + primary = fsl_dcu_drm_primary_create_plane(fsl_dev->ddev); > + ret = drm_crtc_init_with_planes(fsl_dev->ddev, crtc, primary, NULL, > + &fsl_dcu_drm_crtc_funcs); > + if (ret < 0) > + return ret; > + > + drm_crtc_helper_add(crtc, &fsl_dcu_drm_crtc_helper_funcs); > + > + for (i = 0; i < DCU_TOTAL_LAYER_NUM; i++) { > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_1(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_2(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_3(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_4(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_5(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_6(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_7(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_8(i), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_9(i), 0); > + if (of_device_is_compatible(fsl_dev->np, "fsl,ls1021a-dcu")) > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_10(i), 0); > + } > + regmap_write(fsl_dev->regmap, DCU_SYN_POL, > + DCU_SYN_POL_INV_VS_LOW | DCU_SYN_POL_INV_HS_LOW); > + regmap_write(fsl_dev->regmap, DCU_BGND, DCU_BGND_R(0) | > + DCU_BGND_G(0) | DCU_BGND_B(0)); > + regmap_write(fsl_dev->regmap, DCU_DCU_MODE, > + DCU_MODE_BLEND_ITER(1) | DCU_MODE_RASTER_EN); > + regmap_write(fsl_dev->regmap, DCU_THRESHOLD, > + DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) | > + DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) | > + DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL)); > + regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, > + DCU_MODE_DCU_MODE_MASK, > + DCU_MODE_DCU_MODE(DCU_MODE_OFF)); > + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, > +DCU_UPDATE_MODE_READREG); > + > + return 0; > +} > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.h > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.h > new file mode 100644 > index 0000000..193785f > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.h > @@ -0,0 +1,22 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef __FSL_DCU_DRM_CRTC_H__ > +#define __FSL_DCU_DRM_CRTC_H__ > + > +#include <drm/drmP.h> > +#include <drm/drm_crtc.h> > + > +struct fsl_dcu_drm_device; > + > +int fsl_dcu_drm_crtc_create(struct fsl_dcu_drm_device *fsl_dev); > + > +#endif /* __FSL_DCU_DRM_CRTC_H__ */ > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c > new file mode 100644 > index 0000000..1edf7be > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c > @@ -0,0 +1,373 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <linux/clk.h> > +#include <linux/io.h> > +#include <linux/mm.h> > +#include <linux/module.h> > +#include <linux/of_platform.h> > +#include <linux/platform_device.h> > +#include <linux/pm.h> > +#include <linux/pm_runtime.h> > +#include <linux/regmap.h> > +#include <linux/mfd/syscon.h> > + > +#include <drm/drmP.h> > + > +#include "fsl_dcu_drm_drv.h" > +#include "fsl_dcu_drm_crtc.h" > +#include "fsl_dcu_drm_kms.h" > + > +static int fsl_dcu_unload(struct drm_device *dev) { > + drm_mode_config_cleanup(dev); > + drm_vblank_cleanup(dev); > + drm_irq_uninstall(dev); > + > + dev->dev_private = NULL; > + > + return 0; > +} > + > +static struct regmap_config fsl_dcu_regmap_config = { > + .reg_bits = 32, > + .reg_stride = 4, > + .val_bits = 32, > +}; > + > +static int fsl_dcu_bypass_tcon(struct fsl_dcu_drm_device *fsl_dev, > + struct device_node *np) > +{ > + struct device_node *tcon_np; > + struct platform_device *pdev; > + struct clk *tcon_clk; > + struct resource *res; > + void __iomem *base; > + > + tcon_np = of_parse_phandle(np, "tcon-controller", 0); > + if (!tcon_np) > + return -EINVAL; > + > + pdev = of_find_device_by_node(tcon_np); > + if (!pdev) > + return -EINVAL; > + > + tcon_clk = devm_clk_get(&pdev->dev, "tcon"); > + if (IS_ERR(tcon_clk)) > + return PTR_ERR(tcon_clk); > + clk_prepare_enable(tcon_clk); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + if (!res) > + return -ENODEV; > + > + base = devm_ioremap_resource(&pdev->dev, res); > + if (IS_ERR(base)) > + return PTR_ERR(base); > + > + fsl_dev->tcon_regmap = devm_regmap_init_mmio(&pdev->dev, > + base, &fsl_dcu_regmap_config); > + if (IS_ERR(fsl_dev->tcon_regmap)) { > + dev_err(&pdev->dev, "regmap init failed\n"); > + return PTR_ERR(fsl_dev->tcon_regmap); > + } > + > + regmap_write(fsl_dev->tcon_regmap, TCON_CTRL1, TCON_BYPASS_ENABLE); > + return 0; > +} > + > +static void dcu_pixclk_enable(void) > +{ > + struct regmap *scfg_regmap; > + > + scfg_regmap = syscon_regmap_lookup_by_compatible("fsl,ls1021a-scfg"); > + if (IS_ERR(scfg_regmap)) { > + pr_err("No syscfg phandle specified\n"); > + return; > + } > + > + regmap_write(scfg_regmap, SCFG_PIXCLKCR, PXCK_ENABLE); } > + > +static int fsl_dcu_drm_irq_init(struct drm_device *dev) { > + struct platform_device *pdev = dev->platformdev; > + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; > + unsigned int int_mask; > + int ret; > + > + ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0)); > + if (ret < 0) > + dev_err(&pdev->dev, "failed to install IRQ handler\n"); > + > + dev->irq_enabled = true; > + dev->vblank_disable_allowed = true; > + > + regmap_write(fsl_dev->regmap, DCU_INT_STATUS, 0); > + regmap_read(fsl_dev->regmap, DCU_INT_MASK, &int_mask); > + regmap_write(fsl_dev->regmap, DCU_INT_MASK, int_mask & > + ~DCU_INT_MASK_VBLANK); > + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, > +DCU_UPDATE_MODE_READREG); > + > + return 0; > +} > + > +static int fsl_dcu_load(struct drm_device *dev, unsigned long flags) { > + struct platform_device *pdev = dev->platformdev; > + struct fsl_dcu_drm_device *fsl_dev; > + struct resource *res; > + void __iomem *base; > + int ret; > + > + fsl_dev = devm_kzalloc(&pdev->dev, sizeof(*fsl_dev), GFP_KERNEL); > + if (!fsl_dev) > + return -ENOMEM; > + > + fsl_dev->dev = &pdev->dev; > + fsl_dev->ddev = dev; > + fsl_dev->np = pdev->dev.of_node; > + dev->dev_private = fsl_dev; > + dev_set_drvdata(dev->dev, fsl_dev); > + drm_dev_set_unique(dev, dev_name(dev->dev)); > + > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + if (!res) { > + dev_err(&pdev->dev, "could not get memory IO resource\n"); > + return -ENODEV; > + } > + > + base = devm_ioremap_resource(&pdev->dev, res); > + if (IS_ERR(base)) { > + ret = PTR_ERR(base); > + return ret; > + } > + > + fsl_dev->clk = devm_clk_get(&pdev->dev, "dcu"); > + if (IS_ERR(fsl_dev->clk)) { > + ret = PTR_ERR(fsl_dev->clk); > + dev_err(&pdev->dev, "could not get clock\n"); > + return ret; > + } > + clk_prepare_enable(fsl_dev->clk); > + fsl_dev->regmap = devm_regmap_init_mmio(&pdev->dev, base, > + &fsl_dcu_regmap_config); > + if (IS_ERR(fsl_dev->regmap)) { > + dev_err(&pdev->dev, "regmap init failed\n"); > + return PTR_ERR(fsl_dev->regmap); > + } > + > + /* Put TCON in bypass mode, so the input signals from DCU are passed > + * through TCON unchanged */ > + fsl_dcu_bypass_tcon(fsl_dev, fsl_dev->np); > + > + if (of_device_is_compatible(fsl_dev->np, "fsl,ls1021a-dcu")) > + dcu_pixclk_enable(); > + ret = fsl_dcu_drm_modeset_init(fsl_dev); > + if (ret < 0) { > + dev_err(&pdev->dev, "failed to initialize mode setting\n"); > + return ret; > + } > + > + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); > + if (ret < 0) { > + dev_err(&pdev->dev, "failed to initialize vblank\n"); > + goto done; > + } > + > + ret = fsl_dcu_drm_irq_init(dev); > + if (ret < 0) > + goto done; > + > + fsl_dcu_fbdev_init(dev); > + > + return 0; > +done: > + if (ret) > + fsl_dcu_unload(dev); > + > + return ret; > +} > + > +static void fsl_dcu_drm_preclose(struct drm_device *dev, struct > +drm_file *file) { } > + > +static irqreturn_t fsl_dcu_drm_irq(int irq, void *arg) { > + struct drm_device *dev = arg; > + struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; > + unsigned int int_status; > + > + regmap_read(fsl_dev->regmap, DCU_INT_STATUS, &int_status); > + if (int_status & DCU_INT_STATUS_VBLANK) > + drm_handle_vblank(dev, 0); > + > + regmap_write(fsl_dev->regmap, DCU_INT_STATUS, 0xffffffff); > + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, > +DCU_UPDATE_MODE_READREG); > + > + return IRQ_HANDLED; > +} > + > +static int fsl_dcu_drm_enable_vblank(struct drm_device *dev, int crtc) > +{ > + return 0; > +} > + > +static void fsl_dcu_drm_disable_vblank(struct drm_device *dev, int > +crtc) { } > + > +static const struct file_operations fsl_dcu_drm_fops = { > + .owner = THIS_MODULE, > + .open = drm_open, > + .release = drm_release, > + .unlocked_ioctl = drm_ioctl, > +#ifdef CONFIG_COMPAT > + .compat_ioctl = drm_compat_ioctl, > +#endif > + .poll = drm_poll, > + .read = drm_read, > + .llseek = no_llseek, > + .mmap = drm_gem_cma_mmap, > +}; > + > +static struct drm_driver fsl_dcu_drm_driver = { > + .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET > + | DRIVER_PRIME, > + .load = fsl_dcu_load, > + .unload = fsl_dcu_unload, > + .preclose = fsl_dcu_drm_preclose, > + .irq_handler = fsl_dcu_drm_irq, > + .get_vblank_counter = drm_vblank_count, > + .enable_vblank = fsl_dcu_drm_enable_vblank, > + .disable_vblank = fsl_dcu_drm_disable_vblank, > + .gem_free_object = drm_gem_cma_free_object, > + .gem_vm_ops = &drm_gem_cma_vm_ops, > + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, > + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, > + .gem_prime_import = drm_gem_prime_import, > + .gem_prime_export = drm_gem_prime_export, > + .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, > + .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, > + .gem_prime_vmap = drm_gem_cma_prime_vmap, > + .gem_prime_vunmap = drm_gem_cma_prime_vunmap, > + .gem_prime_mmap = drm_gem_cma_prime_mmap, > + .dumb_create = drm_gem_cma_dumb_create, > + .dumb_map_offset = drm_gem_cma_dumb_map_offset, > + .dumb_destroy = drm_gem_dumb_destroy, > + .fops = &fsl_dcu_drm_fops, > + .name = "fsl-dcu-drm", > + .desc = "Freescale DCU DRM", > + .date = "20150213", > + .major = 1, > + .minor = 0, > +}; > + > +#ifdef CONFIG_PM_SLEEP > +static void dcu_pixclk_disable(void) > +{ > + struct regmap *scfg_regmap; > + > + scfg_regmap = syscon_regmap_lookup_by_compatible("fsl,ls1021a-scfg"); > + if (IS_ERR(scfg_regmap)) { > + pr_err("No syscfg phandle specified\n"); > + return; > + } > + > + regmap_write(scfg_regmap, SCFG_PIXCLKCR, PXCK_DISABLE); } > + > +static int fsl_dcu_drm_pm_suspend(struct device *dev) { > + struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev); > + > + if (of_device_is_compatible(fsl_dev->np, "fsl,ls1021a-dcu")) > + dcu_pixclk_disable(); > + > + drm_kms_helper_poll_disable(fsl_dev->ddev); > + regcache_cache_only(fsl_dev->regmap, true); > + regcache_mark_dirty(fsl_dev->regmap); > + clk_disable_unprepare(fsl_dev->clk); > + > + if (fsl_dev->tcon_regmap) { > + regcache_cache_only(fsl_dev->tcon_regmap, true); > + regcache_mark_dirty(fsl_dev->tcon_regmap); > + clk_disable_unprepare(fsl_dev->tcon_clk); > + } > + > + return 0; > +} > + > +static int fsl_dcu_drm_pm_resume(struct device *dev) { > + struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev); > + > + /* Enable clocks and restore all registers */ > + if (fsl_dev->tcon_regmap) { > + clk_prepare_enable(fsl_dev->tcon_clk); > + regcache_cache_only(fsl_dev->tcon_regmap, false); > + regcache_sync(fsl_dev->tcon_regmap); > + } > + > + clk_prepare_enable(fsl_dev->clk); > + drm_kms_helper_poll_enable(fsl_dev->ddev); > + regcache_cache_only(fsl_dev->regmap, false); > + regcache_sync(fsl_dev->regmap); > + > + if (of_device_is_compatible(fsl_dev->np, "fsl,ls1021a-dcu")) > + dcu_pixclk_enable(); > + > + return 0; > +} > +#endif > + > +static const struct dev_pm_ops fsl_dcu_drm_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(fsl_dcu_drm_pm_suspend, > fsl_dcu_drm_pm_resume) > +}; > + > +static int fsl_dcu_drm_probe(struct platform_device *pdev) { > + return drm_platform_init(&fsl_dcu_drm_driver, pdev); } > + > +static int fsl_dcu_drm_remove(struct platform_device *pdev) { > + struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev); > + > + drm_put_dev(fsl_dev->ddev); > + > + return 0; > +} > + > +static const struct of_device_id fsl_dcu_of_match[] = { > + { .compatible = "fsl,ls1021a-dcu", }, > + { .compatible = "fsl,vf610-dcu", }, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, fsl_dcu_of_match); > + > +static struct platform_driver fsl_dcu_drm_platform_driver = { > + .probe = fsl_dcu_drm_probe, > + .remove = fsl_dcu_drm_remove, > + .driver = { > + .owner = THIS_MODULE, > + .name = "fsl,dcu", > + .pm = &fsl_dcu_drm_pm_ops, > + .of_match_table = fsl_dcu_of_match, > + }, > +}; > + > +module_platform_driver(fsl_dcu_drm_platform_driver); > + > +MODULE_ALIAS("platform:fsl-dcu-drm"); > +MODULE_DESCRIPTION("Freescale DCU DRM Driver"); MODULE_LICENSE("GPL"); > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h > new file mode 100644 > index 0000000..40df1c5 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h > @@ -0,0 +1,223 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef __FSL_DCU_DRM_DRV_H__ > +#define __FSL_DCU_DRM_DRV_H__ > + > +#include <linux/kernel.h> > +#include <linux/spinlock.h> > +#include <stddef.h> > +#include <drm/drm.h> > +#include <drm/drmP.h> > +#include <drm/drm_fb_helper.h> > +#include <drm/drm_crtc_helper.h> > +#include <drm/drm_gem_cma_helper.h> > +#include <drm/drm_fb_cma_helper.h> > + > +#include "fsl_dcu_drm_crtc.h" > +#include "fsl_dcu_drm_plane.h" > +#include "fsl_dcu_drm_connector.h" > +#define DRIVER_NAME "fsl-dcu-drm" > + > +#define DCU_DCU_MODE 0x0010 > +#define DCU_MODE_BLEND_ITER(x) ((x) << 20) > +#define DCU_MODE_RASTER_EN BIT(14) > +#define DCU_MODE_DCU_MODE(x) (x) > +#define DCU_MODE_DCU_MODE_MASK 0x03 > +#define DCU_MODE_OFF 0 > +#define DCU_MODE_NORMAL 1 > +#define DCU_MODE_TEST 2 > +#define DCU_MODE_COLORBAR 3 > + > +#define DCU_BGND 0x0014 > +#define DCU_BGND_R(x) ((x) << 16) > +#define DCU_BGND_G(x) ((x) << 8) > +#define DCU_BGND_B(x) (x) > + > +#define DCU_DISP_SIZE 0x0018 > +#define DCU_DISP_SIZE_DELTA_Y(x) ((x) << 16) > +/*Regisiter value 1/16 of horizontal resolution*/ > +#define DCU_DISP_SIZE_DELTA_X(x) ((x) >> 4) > + > +#define DCU_HSYN_PARA 0x001c > +#define DCU_HSYN_PARA_BP(x) ((x) << 22) > +#define DCU_HSYN_PARA_PW(x) ((x) << 11) > +#define DCU_HSYN_PARA_FP(x) (x) > + > +#define DCU_VSYN_PARA 0x0020 > +#define DCU_VSYN_PARA_BP(x) ((x) << 22) > +#define DCU_VSYN_PARA_PW(x) ((x) << 11) > +#define DCU_VSYN_PARA_FP(x) (x) > + > +#define DCU_SYN_POL 0x0024 > +#define DCU_SYN_POL_INV_PXCK_FALL (0 << 6) > +#define DCU_SYN_POL_NEG_REMAIN (0 << 5) > +#define DCU_SYN_POL_INV_VS_LOW BIT(1) > +#define DCU_SYN_POL_INV_HS_LOW BIT(0) > + > +#define DCU_THRESHOLD 0x0028 > +#define DCU_THRESHOLD_LS_BF_VS(x) ((x) << 16) > +#define DCU_THRESHOLD_OUT_BUF_HIGH(x) ((x) << 8) > +#define DCU_THRESHOLD_OUT_BUF_LOW(x) (x) > +#define BF_VS_VAL 0x03 > +#define BUF_MAX_VAL 0x78 > +#define BUF_MIN_VAL 0x0a > + > +#define DCU_INT_STATUS 0x002C > +#define DCU_INT_STATUS_VSYNC BIT(0) > +#define DCU_INT_STATUS_UNDRUN BIT(1) > +#define DCU_INT_STATUS_LSBFVS BIT(2) > +#define DCU_INT_STATUS_VBLANK BIT(3) > +#define DCU_INT_STATUS_CRCREADY BIT(4) > +#define DCU_INT_STATUS_CRCOVERFLOW BIT(5) > +#define DCU_INT_STATUS_P1FIFOLO BIT(6) > +#define DCU_INT_STATUS_P1FIFOHI BIT(7) > +#define DCU_INT_STATUS_P2FIFOLO BIT(8) > +#define DCU_INT_STATUS_P2FIFOHI BIT(9) > +#define DCU_INT_STATUS_PROGEND BIT(10) > +#define DCU_INT_STATUS_IPMERROR BIT(11) > +#define DCU_INT_STATUS_LYRTRANS BIT(12) > +#define DCU_INT_STATUS_DMATRANS BIT(14) > +#define DCU_INT_STATUS_P3FIFOLO BIT(16) > +#define DCU_INT_STATUS_P3FIFOHI BIT(17) > +#define DCU_INT_STATUS_P4FIFOLO BIT(18) > +#define DCU_INT_STATUS_P4FIFOHI BIT(19) > +#define DCU_INT_STATUS_P1EMPTY BIT(26) > +#define DCU_INT_STATUS_P2EMPTY BIT(27) > +#define DCU_INT_STATUS_P3EMPTY BIT(28) > +#define DCU_INT_STATUS_P4EMPTY BIT(29) > + > +#define DCU_INT_MASK 0x0030 > +#define DCU_INT_MASK_VSYNC BIT(0) > +#define DCU_INT_MASK_UNDRUN BIT(1) > +#define DCU_INT_MASK_LSBFVS BIT(2) > +#define DCU_INT_MASK_VBLANK BIT(3) > +#define DCU_INT_MASK_CRCREADY BIT(4) > +#define DCU_INT_MASK_CRCOVERFLOW BIT(5) > +#define DCU_INT_MASK_P1FIFOLO BIT(6) > +#define DCU_INT_MASK_P1FIFOHI BIT(7) > +#define DCU_INT_MASK_P2FIFOLO BIT(8) > +#define DCU_INT_MASK_P2FIFOHI BIT(9) > +#define DCU_INT_MASK_PROGEND BIT(10) > +#define DCU_INT_MASK_IPMERROR BIT(11) > +#define DCU_INT_MASK_LYRTRANS BIT(12) > +#define DCU_INT_MASK_DMATRANS BIT(14) > +#define DCU_INT_MASK_P3FIFOLO BIT(16) > +#define DCU_INT_MASK_P3FIFOHI BIT(17) > +#define DCU_INT_MASK_P4FIFOLO BIT(18) > +#define DCU_INT_MASK_P4FIFOHI BIT(19) > +#define DCU_INT_MASK_P1EMPTY BIT(26) > +#define DCU_INT_MASK_P2EMPTY BIT(27) > +#define DCU_INT_MASK_P3EMPTY BIT(28) > +#define DCU_INT_MASK_P4EMPTY BIT(29) > + > +#define DCU_DIV_RATIO 0x0054 > + > +#define DCU_UPDATE_MODE 0x00cc > +#define DCU_UPDATE_MODE_MODE BIT(31) > +#define DCU_UPDATE_MODE_READREG BIT(30) > + > +#define DCU_DCFB_MAX 0x300 > + > +#define DCU_CTRLDESCLN_1(x) (0x200 + (x) * 0x40) > +#define DCU_CTRLDESCLN_1_HEIGHT(x) ((x) << 16) > +#define DCU_CTRLDESCLN_1_WIDTH(x) (x) > + > +#define DCU_CTRLDESCLN_2(x) (0x204 + (x) * 0x40) > +#define DCU_CTRLDESCLN_2_POSY(x) ((x) << 16) > +#define DCU_CTRLDESCLN_2_POSX(x) (x) > + > +#define DCU_CTRLDESCLN_3(x) (0x208 + (x) * 0x40) > + > +#define DCU_CTRLDESCLN_4(x) (0x20c + (x) * 0x40) > +#define DCU_CTRLDESCLN_4_EN BIT(31) > +#define DCU_CTRLDESCLN_4_TILE_EN BIT(30) > +#define DCU_CTRLDESCLN_4_DATA_SEL_CLUT BIT(29) > +#define DCU_CTRLDESCLN_4_SAFETY_EN BIT(28) > +#define DCU_CTRLDESCLN_4_TRANS(x) ((x) << 20) > +#define DCU_CTRLDESCLN_4_BPP(x) ((x) << 16) > +#define DCU_CTRLDESCLN_4_RLE_EN BIT(15) > +#define DCU_CTRLDESCLN_4_LUOFFS(x) ((x) << 4) > +#define DCU_CTRLDESCLN_4_BB_ON BIT(2) > +#define DCU_CTRLDESCLN_4_AB(x) (x) > + > +#define DCU_CTRLDESCLN_5(x) (0x210 + (x) * 0x40) > +#define DCU_CTRLDESCLN_5_CKMAX_R(x) ((x) << 16) > +#define DCU_CTRLDESCLN_5_CKMAX_G(x) ((x) << 8) > +#define DCU_CTRLDESCLN_5_CKMAX_B(x) (x) > + > +#define DCU_CTRLDESCLN_6(x) (0x214 + (x) * 0x40) > +#define DCU_CTRLDESCLN_6_CKMIN_R(x) ((x) << 16) > +#define DCU_CTRLDESCLN_6_CKMIN_G(x) ((x) << 8) > +#define DCU_CTRLDESCLN_6_CKMIN_B(x) (x) > + > +#define DCU_CTRLDESCLN_7(x) (0x218 + (x) * 0x40) > +#define DCU_CTRLDESCLN_7_TILE_VER(x) ((x) << 16) > +#define DCU_CTRLDESCLN_7_TILE_HOR(x) (x) > + > +#define DCU_CTRLDESCLN_8(x) (0x21c + (x) * 0x40) > +#define DCU_CTRLDESCLN_8_FG_FCOLOR(x) (x) > + > +#define DCU_CTRLDESCLN_9(x) (0x220 + (x) * 0x40) > +#define DCU_CTRLDESCLN_9_BG_BCOLOR(x) (x) > + > +#define DCU_CTRLDESCLN_10(x) (0x224 + (x) * 0x40) > +#define DCU_CTRLDESCLN_10_POST_SKIP(x) ((x) << 16) > +#define DCU_CTRLDESCLN_10_PRE_SKIP(x) (x) > + > +#ifdef CONFIG_SOC_VF610 > +#define DCU_TOTAL_LAYER_NUM 64 > +#define DCU_LAYER_NUM_MAX 6 > +#else > +#define DCU_TOTAL_LAYER_NUM 16 > +#define DCU_LAYER_NUM_MAX 4 > +#endif > + > +#define FSL_DCU_RGB565 4 > +#define FSL_DCU_RGB888 5 > +#define FSL_DCU_ARGB8888 6 > +#define FSL_DCU_ARGB1555 11 > +#define FSL_DCU_ARGB4444 12 > +#define FSL_DCU_YUV422 14 > + > +#define TCON_CTRL1 0x0000 > +#define TCON_BYPASS_ENABLE BIT(29) > + > +#define SCFG_PIXCLKCR 0x28 > +#define PXCK_ENABLE BIT(31) > +#define PXCK_DISABLE 0 > + > +#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) > + > +struct clk; > +struct device; > +struct drm_device; > + > +struct fsl_dcu_drm_device { > + struct device *dev; > + struct device_node *np; > + struct regmap *regmap; > + struct regmap *tcon_regmap; > + unsigned int irq; > + struct clk *clk; > + struct clk *tcon_clk; > + /*protects hardware register*/ > + spinlock_t irq_lock; > + struct drm_device *ddev; > + struct drm_fbdev_cma *fbdev; > + struct drm_crtc crtc; > + struct drm_encoder encoder; > + struct fsl_dcu_drm_connector connector; }; > + > +void fsl_dcu_fbdev_init(struct drm_device *dev); > + > +#endif /* __FSL_DCU_DRM_DRV_H__ */ > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_fbdev.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_fbdev.c > new file mode 100644 > index 0000000..f8ef0e1 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_fbdev.c > @@ -0,0 +1,26 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * This program is free software; you can redistribute it and/or modify > +it > + * under the terms of the GNU General Public License version 2 as > +published by > + * the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, but > +WITHOUT > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY > +or > + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public > +License for > + * more details. > + * > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_fb_cma_helper.h> > + > +#include "fsl_dcu_drm_drv.h" > + > +/* initialize fbdev helper */ > +void fsl_dcu_fbdev_init(struct drm_device *dev) { > + struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev->dev); > + > + fsl_dev->fbdev = drm_fbdev_cma_init(dev, 24, 1, 1); } > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c > new file mode 100644 > index 0000000..0de21c6 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c > @@ -0,0 +1,42 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_atomic_helper.h> > + > +#include "fsl_dcu_drm_crtc.h" > +#include "fsl_dcu_drm_connector.h" > +#include "fsl_dcu_drm_drv.h" > + > +static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = > { > + .fb_create = drm_fb_cma_create, > + .atomic_check = drm_atomic_helper_check, > + .atomic_commit = drm_atomic_helper_commit, }; > + > +int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev) { > + drm_mode_config_init(fsl_dev->ddev); > + > + fsl_dev->ddev->mode_config.min_width = 0; > + fsl_dev->ddev->mode_config.min_height = 0; > + fsl_dev->ddev->mode_config.max_width = 2031; > + fsl_dev->ddev->mode_config.max_height = 2047; > + fsl_dev->ddev->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs; > + > + drm_kms_helper_poll_init(fsl_dev->ddev); > + fsl_dcu_drm_crtc_create(fsl_dev); > + fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc); > + fsl_dcu_drm_connector_create(fsl_dev, &fsl_dev->encoder); > + drm_mode_config_reset(fsl_dev->ddev); > + > + return 0; > +} > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.h > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.h > new file mode 100644 > index 0000000..b9bd299 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.h > @@ -0,0 +1,17 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef __FSL_DCU_DRM_KMS_H__ > +#define __FSL_DCU_DRM_KMS_H__ > + > +int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev); > + > +#endif /* __FSL_DCU_DRM_KMS_H__ */ > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c > new file mode 100644 > index 0000000..6146e80 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c > @@ -0,0 +1,192 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_crtc.h> > +#include <drm/drm_crtc_helper.h> > +#include <drm/drm_fb_cma_helper.h> > +#include <drm/drm_gem_cma_helper.h> > +#include <linux/regmap.h> > +#include <drm/drm_plane_helper.h> > +#include <drm/drm_atomic_helper.h> > + > +#include "fsl_dcu_drm_drv.h" > +#include "fsl_dcu_drm_kms.h" > +#include "fsl_dcu_drm_plane.h" > + > +#define to_fsl_dcu_plane(plane) \ > + container_of(plane, struct fsl_dcu_drm_plane, plane) > + > +static int > +fsl_dcu_drm_plane_prepare_fb(struct drm_plane *plane, > + struct drm_framebuffer *fb, > + const struct drm_plane_state *new_state) { > + return 0; > +} > + > +static void > +fsl_dcu_drm_plane_cleanup_fb(struct drm_plane *plane, > + struct drm_framebuffer *fb, > + const struct drm_plane_state *new_state) { } > + > +static int fsl_dcu_drm_plane_atomic_check(struct drm_plane *plane, > + struct drm_plane_state *state) > +{ > + return 0; > +} > + > +static void fsl_dcu_drm_plane_atomic_disable(struct drm_plane *plane, > + struct drm_plane_state *old_state) { } > + > +void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane, > + struct drm_plane_state *old_state) { > + struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private; > + struct drm_plane_state *state = plane->state; > + struct drm_framebuffer *fb = plane->state->fb; > + u32 index, alpha, bpp; > + struct drm_gem_cma_object *gem; > + struct fsl_dcu_drm_plane *fsl_plane = to_fsl_dcu_plane(plane); > + > + index = fsl_plane->index; > + gem = drm_fb_cma_get_gem_obj(fb, 0); > + > + switch (fb->pixel_format) { > + case DRM_FORMAT_RGB565: > + bpp = FSL_DCU_RGB565; > + alpha = 0xff; > + break; > + case DRM_FORMAT_RGB888: > + bpp = FSL_DCU_RGB888; > + alpha = 0xff; > + break; > + case DRM_FORMAT_ARGB8888: > + bpp = FSL_DCU_ARGB8888; > + alpha = 0xff; > + break; > + case DRM_FORMAT_BGRA4444: > + bpp = FSL_DCU_ARGB4444; > + alpha = 0xff; > + break; > + case DRM_FORMAT_ARGB1555: > + bpp = FSL_DCU_ARGB1555; > + alpha = 0xff; > + break; > + case DRM_FORMAT_YUV422: > + bpp = FSL_DCU_YUV422; > + alpha = 0xff; > + break; > + default: > + return; > + } > + > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_1(index), > + DCU_CTRLDESCLN_1_HEIGHT(state->crtc_h) | > + DCU_CTRLDESCLN_1_WIDTH(state->crtc_w)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_2(index), > + DCU_CTRLDESCLN_2_POSY(state->crtc_y) | > + DCU_CTRLDESCLN_2_POSX(state->crtc_x)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_3(index), gem->paddr); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_4(index), > + DCU_CTRLDESCLN_4_EN | > + DCU_CTRLDESCLN_4_TRANS(alpha) | > + DCU_CTRLDESCLN_4_BPP(bpp) | > + DCU_CTRLDESCLN_4_AB(0)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_5(index), > + DCU_CTRLDESCLN_5_CKMAX_R(0xFF) | > + DCU_CTRLDESCLN_5_CKMAX_G(0xFF) | > + DCU_CTRLDESCLN_5_CKMAX_B(0xFF)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_6(index), > + DCU_CTRLDESCLN_6_CKMIN_R(0) | > + DCU_CTRLDESCLN_6_CKMIN_G(0) | > + DCU_CTRLDESCLN_6_CKMIN_B(0)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_7(index), 0); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_8(index), > + DCU_CTRLDESCLN_8_FG_FCOLOR(0)); > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_9(index), > + DCU_CTRLDESCLN_9_BG_BCOLOR(0)); > + if (of_device_is_compatible(fsl_dev->np, "fsl,ls1021a-dcu")) > + regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN_10(index), > + DCU_CTRLDESCLN_10_POST_SKIP(0) | > + DCU_CTRLDESCLN_10_PRE_SKIP(0)); > + regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE, > + DCU_MODE_DCU_MODE_MASK, > + DCU_MODE_DCU_MODE(DCU_MODE_NORMAL)); > + regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE, > +DCU_UPDATE_MODE_READREG); } > + > +int fsl_dcu_drm_plane_disable(struct drm_plane *plane) { > + return 0; > +} > + > +void fsl_dcu_drm_plane_destroy(struct drm_plane *plane) { > + fsl_dcu_drm_plane_disable(plane); > + drm_plane_cleanup(plane); > +} > + > +static const uint32_t fsl_dcu_drm_plane_formats[] = { > + DRM_FORMAT_RGB565, > + DRM_FORMAT_RGB888, > + DRM_FORMAT_ARGB8888, > + DRM_FORMAT_ARGB4444, > + DRM_FORMAT_ARGB1555, > + DRM_FORMAT_YUV422, > +}; > + > +static const struct drm_plane_funcs fsl_dcu_drm_plane_funcs = { > + .update_plane = drm_atomic_helper_update_plane, > + .disable_plane = drm_atomic_helper_disable_plane, > + .destroy = fsl_dcu_drm_plane_destroy, > + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, > + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, > + .reset = drm_atomic_helper_plane_reset, }; > + > +static const struct drm_plane_helper_funcs fsl_dcu_drm_plane_helper_funcs > = { > + .prepare_fb = fsl_dcu_drm_plane_prepare_fb, > + .cleanup_fb = fsl_dcu_drm_plane_cleanup_fb, > + .atomic_check = fsl_dcu_drm_plane_atomic_check, > + .atomic_update = fsl_dcu_drm_plane_atomic_update, > + .atomic_disable = fsl_dcu_drm_plane_atomic_disable, }; > + > +struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device > +*dev) { > + struct drm_plane *primary; > + int ret; > + > + primary = kzalloc(sizeof(*primary), GFP_KERNEL); > + if (!primary) { > + DRM_DEBUG_KMS("Failed to allocate primary plane\n"); > + return NULL; > + } > + > + /* possible_crtc's will be filled in later by crtc_init */ > + ret = drm_universal_plane_init(dev, primary, 0, > + &fsl_dcu_drm_plane_funcs, > + fsl_dcu_drm_plane_formats, > + ARRAY_SIZE(fsl_dcu_drm_plane_formats), > + DRM_PLANE_TYPE_PRIMARY); > + if (ret) { > + kfree(primary); > + primary = NULL; > + } > + drm_plane_helper_add(primary, &fsl_dcu_drm_plane_helper_funcs); > + > + return primary; > +} > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h > b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h > new file mode 100644 > index 0000000..ccbfa61 > --- /dev/null > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.h > @@ -0,0 +1,23 @@ > +/* > + * Copyright 2015 Freescale Semiconductor, Inc. > + * > + * Freescale DCU drm device driver > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#ifndef __FSL_DCU_DRM_PLANE_H__ > +#define __FSL_DCU_DRM_PLANE_H__ > + > +struct fsl_dcu_drm_device; > +struct fsl_dcu_drm_plane { > + struct drm_plane plane; > + unsigned int index; > +}; > + > +struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device > +*dev); > + > +#endif /* __FSL_DCU_DRM_PLANE_H__ */ > -- > 2.1.0.27.g96db324 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
