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Commit 4078f575 authored by Eric Anholt's avatar Eric Anholt
Browse files

drm/vc4: Add DSI driver 



The DSI0 and DSI1 blocks on the 2835 are related hardware blocks.
Some registers move around, and the featureset is slightly different,
as DSI1 (the 4-lane DSI) is a later version of the hardware block.
This driver doesn't yet enable DSI0, since we don't have any hardware
to test against, but it does put a lot of the register definitions and
code in place.

v2: Use the clk_hw interfaces, don't set CLK_IS_BASIC (from review by
    Stephen Boyd)

Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/20170131192912.11316-1-eric@anholt.net
parent 302cee36

drivers/gpu/drm/vc4/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -2,10 +2,12 @@ config DRM_VC4 
	tristate "Broadcom VC4 Graphics"

	depends on ARCH_BCM2835 || COMPILE_TEST

	depends on DRM

	depends on COMMON_CLK

	select DRM_KMS_HELPER

	select DRM_KMS_CMA_HELPER

	select DRM_GEM_CMA_HELPER

	select DRM_PANEL

	select DRM_MIPI_DSI

	help

	  Choose this option if you have a system that has a Broadcom

	  VC4 GPU, such as the Raspberry Pi or other BCM2708/BCM2835.

drivers/gpu/drm/vc4/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ vc4-y := \ 
	vc4_crtc.o \

	vc4_drv.o \

	vc4_dpi.o \

	vc4_dsi.o \

	vc4_kms.o \

	vc4_gem.o \

	vc4_hdmi.o \

drivers/gpu/drm/vc4/vc4_debugfs.c

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
static const struct drm_info_list vc4_debugfs_list[] = {

	{"bo_stats", vc4_bo_stats_debugfs, 0},

	{"dpi_regs", vc4_dpi_debugfs_regs, 0},

	{"dsi1_regs", vc4_dsi_debugfs_regs, 0, (void *)(uintptr_t)1},

	{"hdmi_regs", vc4_hdmi_debugfs_regs, 0},

	{"vec_regs", vc4_vec_debugfs_regs, 0},

	{"hvs_regs", vc4_hvs_debugfs_regs, 0},

drivers/gpu/drm/vc4/vc4_drv.c

+1 −0
Original line number Diff line number Diff line
@@ -295,6 +295,7 @@ static struct platform_driver *const component_drivers[] = { 
	&vc4_hdmi_driver,

	&vc4_vec_driver,

	&vc4_dpi_driver,

	&vc4_dsi_driver,

	&vc4_hvs_driver,

	&vc4_crtc_driver,

	&vc4_v3d_driver,

drivers/gpu/drm/vc4/vc4_drv.h

+5 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ struct vc4_dev { 
	struct vc4_hvs *hvs;

	struct vc4_v3d *v3d;

	struct vc4_dpi *dpi;

	struct vc4_dsi *dsi1;

	struct vc4_vec *vec;



	struct drm_fbdev_cma *fbdev;
@@ -465,6 +466,10 @@ void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index); 
extern struct platform_driver vc4_dpi_driver;

int vc4_dpi_debugfs_regs(struct seq_file *m, void *unused);



/* vc4_dsi.c */

extern struct platform_driver vc4_dsi_driver;

int vc4_dsi_debugfs_regs(struct seq_file *m, void *unused);



/* vc4_gem.c */

void vc4_gem_init(struct drm_device *dev);

void vc4_gem_destroy(struct drm_device *dev);