At less than 500 lines total feels like the right thing to do.
Also noticed that the simple wrapper around drm_connector_cleanup can be dropped.
Acked-by: Sam Ravnborg sam@ravnborg.org Cc: Eugeniy Paltsev Eugeniy.Paltsev@synopsys.com Cc: Alexey Brodkin abrodkin@synopsys.com Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- drivers/gpu/drm/arc/Makefile | 2 +- drivers/gpu/drm/arc/arcpgu.h | 39 ------------ drivers/gpu/drm/arc/arcpgu_drv.c | 102 +++++++++++++++++++++++++++++- drivers/gpu/drm/arc/arcpgu_regs.h | 31 --------- drivers/gpu/drm/arc/arcpgu_sim.c | 74 ---------------------- 5 files changed, 101 insertions(+), 147 deletions(-) delete mode 100644 drivers/gpu/drm/arc/arcpgu.h delete mode 100644 drivers/gpu/drm/arc/arcpgu_regs.h delete mode 100644 drivers/gpu/drm/arc/arcpgu_sim.c
diff --git a/drivers/gpu/drm/arc/Makefile b/drivers/gpu/drm/arc/Makefile index 379a1145bc2f..b26f2495c532 100644 --- a/drivers/gpu/drm/arc/Makefile +++ b/drivers/gpu/drm/arc/Makefile @@ -1,3 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only -arcpgu-y := arcpgu_sim.o arcpgu_drv.o +arcpgu-y := arcpgu_drv.o obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o diff --git a/drivers/gpu/drm/arc/arcpgu.h b/drivers/gpu/drm/arc/arcpgu.h deleted file mode 100644 index 7dce0c2313ba..000000000000 --- a/drivers/gpu/drm/arc/arcpgu.h +++ /dev/null @@ -1,39 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * ARC PGU DRM driver. - * - * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com) - */ - -#ifndef _ARCPGU_H_ -#define _ARCPGU_H_ - -#include <drm/drm_simple_kms_helper.h> - -struct arcpgu_drm_private { - struct drm_device drm; - void __iomem *regs; - struct clk *clk; - struct drm_simple_display_pipe pipe; - struct drm_connector sim_conn; -}; - -#define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm) - -#define pipe_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, pipe) - -static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu, - unsigned int reg, u32 value) -{ - iowrite32(value, arcpgu->regs + reg); -} - -static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu, - unsigned int reg) -{ - return ioread32(arcpgu->regs + reg); -} - -int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np); - -#endif diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c index 0e959e42893d..0a0b54993773 100644 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ b/drivers/gpu/drm/arc/arcpgu_drv.c @@ -17,13 +17,111 @@ #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_of.h> #include <drm/drm_probe_helper.h> +#include <drm/drm_simple_kms_helper.h> #include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/of_reserved_mem.h> #include <linux/platform_device.h>
-#include "arcpgu.h" -#include "arcpgu_regs.h" +#define ARCPGU_REG_CTRL 0x00 +#define ARCPGU_REG_STAT 0x04 +#define ARCPGU_REG_FMT 0x10 +#define ARCPGU_REG_HSYNC 0x14 +#define ARCPGU_REG_VSYNC 0x18 +#define ARCPGU_REG_ACTIVE 0x1c +#define ARCPGU_REG_BUF0_ADDR 0x40 +#define ARCPGU_REG_STRIDE 0x50 +#define ARCPGU_REG_START_SET 0x84 + +#define ARCPGU_REG_ID 0x3FC + +#define ARCPGU_CTRL_ENABLE_MASK 0x02 +#define ARCPGU_CTRL_VS_POL_MASK 0x1 +#define ARCPGU_CTRL_VS_POL_OFST 0x3 +#define ARCPGU_CTRL_HS_POL_MASK 0x1 +#define ARCPGU_CTRL_HS_POL_OFST 0x4 +#define ARCPGU_MODE_XRGB8888 BIT(2) +#define ARCPGU_STAT_BUSY_MASK 0x02 + +struct arcpgu_drm_private { + struct drm_device drm; + void __iomem *regs; + struct clk *clk; + struct drm_simple_display_pipe pipe; + struct drm_connector sim_conn; +}; + +#define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm) + +#define pipe_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, pipe) + +static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu, + unsigned int reg, u32 value) +{ + iowrite32(value, arcpgu->regs + reg); +} + +static inline u32 arc_pgu_read(struct arcpgu_drm_private *arcpgu, + unsigned int reg) +{ + return ioread32(arcpgu->regs + reg); +} + +#define XRES_DEF 640 +#define YRES_DEF 480 + +#define XRES_MAX 8192 +#define YRES_MAX 8192 + +static int arcpgu_drm_connector_get_modes(struct drm_connector *connector) +{ + int count; + + count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX); + drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF); + return count; +} + +static const struct drm_connector_helper_funcs +arcpgu_drm_connector_helper_funcs = { + .get_modes = arcpgu_drm_connector_get_modes, +}; + +static const struct drm_connector_funcs arcpgu_drm_connector_funcs = { + .reset = drm_atomic_helper_connector_reset, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = drm_connector_cleanup, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np) +{ + struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm); + struct drm_encoder *encoder; + struct drm_connector *connector; + int ret; + + encoder = &arcpgu->pipe.encoder; + + connector = &arcpgu->sim_conn; + drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs); + + ret = drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs, + DRM_MODE_CONNECTOR_VIRTUAL); + if (ret < 0) { + dev_err(drm->dev, "failed to initialize drm connector\n"); + return ret; + } + + ret = drm_connector_attach_encoder(connector, encoder); + if (ret < 0) { + dev_err(drm->dev, "could not attach connector to encoder\n"); + return ret; + } + + return 0; +}
#define ENCODE_PGU_XY(x, y) ((((x) - 1) << 16) | ((y) - 1))
diff --git a/drivers/gpu/drm/arc/arcpgu_regs.h b/drivers/gpu/drm/arc/arcpgu_regs.h deleted file mode 100644 index b689a382d556..000000000000 --- a/drivers/gpu/drm/arc/arcpgu_regs.h +++ /dev/null @@ -1,31 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * ARC PGU DRM driver. - * - * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com) - */ - -#ifndef _ARC_PGU_REGS_H_ -#define _ARC_PGU_REGS_H_ - -#define ARCPGU_REG_CTRL 0x00 -#define ARCPGU_REG_STAT 0x04 -#define ARCPGU_REG_FMT 0x10 -#define ARCPGU_REG_HSYNC 0x14 -#define ARCPGU_REG_VSYNC 0x18 -#define ARCPGU_REG_ACTIVE 0x1c -#define ARCPGU_REG_BUF0_ADDR 0x40 -#define ARCPGU_REG_STRIDE 0x50 -#define ARCPGU_REG_START_SET 0x84 - -#define ARCPGU_REG_ID 0x3FC - -#define ARCPGU_CTRL_ENABLE_MASK 0x02 -#define ARCPGU_CTRL_VS_POL_MASK 0x1 -#define ARCPGU_CTRL_VS_POL_OFST 0x3 -#define ARCPGU_CTRL_HS_POL_MASK 0x1 -#define ARCPGU_CTRL_HS_POL_OFST 0x4 -#define ARCPGU_MODE_XRGB8888 BIT(2) -#define ARCPGU_STAT_BUSY_MASK 0x02 - -#endif diff --git a/drivers/gpu/drm/arc/arcpgu_sim.c b/drivers/gpu/drm/arc/arcpgu_sim.c deleted file mode 100644 index 1a63f0868504..000000000000 --- a/drivers/gpu/drm/arc/arcpgu_sim.c +++ /dev/null @@ -1,74 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * ARC PGU DRM driver. - * - * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com) - */ - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_device.h> -#include <drm/drm_probe_helper.h> - -#include "arcpgu.h" - -#define XRES_DEF 640 -#define YRES_DEF 480 - -#define XRES_MAX 8192 -#define YRES_MAX 8192 - - -static int arcpgu_drm_connector_get_modes(struct drm_connector *connector) -{ - int count; - - count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX); - drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF); - return count; -} - -static void arcpgu_drm_connector_destroy(struct drm_connector *connector) -{ - drm_connector_cleanup(connector); -} - -static const struct drm_connector_helper_funcs -arcpgu_drm_connector_helper_funcs = { - .get_modes = arcpgu_drm_connector_get_modes, -}; - -static const struct drm_connector_funcs arcpgu_drm_connector_funcs = { - .reset = drm_atomic_helper_connector_reset, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = arcpgu_drm_connector_destroy, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, -}; - -int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np) -{ - struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm); - struct drm_encoder *encoder; - struct drm_connector *connector; - int ret; - - encoder = &arcpgu->pipe.encoder; - - connector = &arcpgu->sim_conn; - drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs); - - ret = drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs, - DRM_MODE_CONNECTOR_VIRTUAL); - if (ret < 0) { - dev_err(drm->dev, "failed to initialize drm connector\n"); - return ret; - } - - ret = drm_connector_attach_encoder(connector, encoder); - if (ret < 0) { - dev_err(drm->dev, "could not attach connector to encoder\n"); - return ret; - } - - return 0; -}