diff options
Diffstat (limited to 'drivers/gpu/drm/arm/hdlcd_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/arm/hdlcd_crtc.c | 117 |
1 files changed, 63 insertions, 54 deletions
diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c index e4d67b70244d..4b4a08cb396d 100644 --- a/drivers/gpu/drm/arm/hdlcd_crtc.c +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c @@ -9,20 +9,22 @@ * Implementation of a CRTC class for the HDLCD driver. */ -#include <drm/drmP.h> +#include <linux/clk.h> +#include <linux/of_graph.h> + +#include <video/pixel_format.h> +#include <video/videomode.h> + #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_fb_dma_helper.h> +#include <drm/drm_framebuffer.h> +#include <drm/drm_gem_dma_helper.h> #include <drm/drm_of.h> -#include <drm/drm_plane_helper.h> -#include <linux/clk.h> -#include <linux/of_graph.h> -#include <linux/platform_data/simplefb.h> -#include <video/videomode.h> +#include <drm/drm_print.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_vblank.h> #include "hdlcd_drv.h" #include "hdlcd_regs.h" @@ -72,7 +74,17 @@ static const struct drm_crtc_funcs hdlcd_crtc_funcs = { .disable_vblank = hdlcd_crtc_disable_vblank, }; -static struct simplefb_format supported_formats[] = SIMPLEFB_FORMATS; +static const struct { + u32 fourcc; + struct pixel_format pixel; +} supported_formats[] = { + { DRM_FORMAT_RGB565, PIXEL_FORMAT_RGB565 }, + { DRM_FORMAT_XRGB1555, PIXEL_FORMAT_XRGB1555 }, + { DRM_FORMAT_RGB888, PIXEL_FORMAT_RGB888 }, + { DRM_FORMAT_XRGB8888, PIXEL_FORMAT_XRGB8888 }, + { DRM_FORMAT_XBGR8888, PIXEL_FORMAT_XBGR8888 }, + { DRM_FORMAT_XRGB2101010, PIXEL_FORMAT_XRGB2101010}, +}; /* * Setup the HDLCD registers for decoding the pixels out of the framebuffer @@ -82,15 +94,12 @@ static int hdlcd_set_pxl_fmt(struct drm_crtc *crtc) unsigned int btpp; struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc); const struct drm_framebuffer *fb = crtc->primary->state->fb; - uint32_t pixel_format; - struct simplefb_format *format = NULL; + const struct pixel_format *format = NULL; int i; - pixel_format = fb->format->format; - for (i = 0; i < ARRAY_SIZE(supported_formats); i++) { - if (supported_formats[i].fourcc == pixel_format) - format = &supported_formats[i]; + if (supported_formats[i].fourcc == fb->format->format) + format = &supported_formats[i].pixel; } if (WARN_ON(!format)) @@ -166,7 +175,7 @@ static void hdlcd_crtc_mode_set_nofb(struct drm_crtc *crtc) } static void hdlcd_crtc_atomic_enable(struct drm_crtc *crtc, - struct drm_crtc_state *old_state) + struct drm_atomic_state *state) { struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc); @@ -177,7 +186,7 @@ static void hdlcd_crtc_atomic_enable(struct drm_crtc *crtc, } static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc, - struct drm_crtc_state *old_state) + struct drm_atomic_state *state) { struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc); @@ -186,24 +195,24 @@ static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc, clk_disable_unprepare(hdlcd->clk); } -static int hdlcd_crtc_atomic_check(struct drm_crtc *crtc, - struct drm_crtc_state *state) +static enum drm_mode_status hdlcd_crtc_mode_valid(struct drm_crtc *crtc, + const struct drm_display_mode *mode) { struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc); - struct drm_display_mode *mode = &state->adjusted_mode; long rate, clk_rate = mode->clock * 1000; rate = clk_round_rate(hdlcd->clk, clk_rate); - if (rate != clk_rate) { + /* 0.1% seems a close enough tolerance for the TDA19988 on Juno */ + if (abs(rate - clk_rate) * 1000 > clk_rate) { /* clock required by mode not supported by hardware */ - return -EINVAL; + return MODE_NOCLOCK; } - return 0; + return MODE_OK; } static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc, - struct drm_crtc_state *state) + struct drm_atomic_state *state) { struct drm_pending_vblank_event *event = crtc->state->event; @@ -220,19 +229,21 @@ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc, } static const struct drm_crtc_helper_funcs hdlcd_crtc_helper_funcs = { - .atomic_check = hdlcd_crtc_atomic_check, + .mode_valid = hdlcd_crtc_mode_valid, .atomic_begin = hdlcd_crtc_atomic_begin, .atomic_enable = hdlcd_crtc_atomic_enable, .atomic_disable = hdlcd_crtc_atomic_disable, }; static int hdlcd_plane_atomic_check(struct drm_plane *plane, - struct drm_plane_state *state) + struct drm_atomic_state *state) { + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, + plane); int i; struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; - u32 src_h = state->src_h >> 16; + u32 src_h = new_plane_state->src_h >> 16; /* only the HDLCD_REG_FB_LINE_COUNT register has a limit */ if (src_h >= HDLCD_MAX_YRES) { @@ -240,23 +251,27 @@ static int hdlcd_plane_atomic_check(struct drm_plane *plane, return -EINVAL; } - for_each_new_crtc_in_state(state->state, crtc, crtc_state, i) { + for_each_new_crtc_in_state(state, crtc, crtc_state, + i) { /* we cannot disable the plane while the CRTC is active */ - if (!state->fb && crtc_state->active) + if (!new_plane_state->fb && crtc_state->active) return -EINVAL; - return drm_atomic_helper_check_plane_state(state, crtc_state, - DRM_PLANE_HELPER_NO_SCALING, - DRM_PLANE_HELPER_NO_SCALING, - false, true); + return drm_atomic_helper_check_plane_state(new_plane_state, + crtc_state, + DRM_PLANE_NO_SCALING, + DRM_PLANE_NO_SCALING, + false, true); } return 0; } static void hdlcd_plane_atomic_update(struct drm_plane *plane, - struct drm_plane_state *state) + struct drm_atomic_state *state) { - struct drm_framebuffer *fb = plane->state->fb; + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, + plane); + struct drm_framebuffer *fb = new_plane_state->fb; struct hdlcd_drm_private *hdlcd; u32 dest_h; dma_addr_t scanout_start; @@ -264,10 +279,10 @@ static void hdlcd_plane_atomic_update(struct drm_plane *plane, if (!fb) return; - dest_h = drm_rect_height(&plane->state->dst); - scanout_start = drm_fb_cma_get_gem_addr(fb, plane->state, 0); + dest_h = drm_rect_height(&new_plane_state->dst); + scanout_start = drm_fb_dma_get_gem_addr(fb, new_plane_state, 0); - hdlcd = plane->dev->dev_private; + hdlcd = drm_to_hdlcd_priv(plane->dev); hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, fb->pitches[0]); hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_PITCH, fb->pitches[0]); hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_COUNT, dest_h - 1); @@ -282,7 +297,6 @@ static const struct drm_plane_helper_funcs hdlcd_plane_helper_funcs = { static const struct drm_plane_funcs hdlcd_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, - .destroy = drm_plane_cleanup, .reset = drm_atomic_helper_plane_reset, .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, @@ -290,24 +304,19 @@ static const struct drm_plane_funcs hdlcd_plane_funcs = { static struct drm_plane *hdlcd_plane_init(struct drm_device *drm) { - struct hdlcd_drm_private *hdlcd = drm->dev_private; + struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm); struct drm_plane *plane = NULL; u32 formats[ARRAY_SIZE(supported_formats)], i; - int ret; - - plane = devm_kzalloc(drm->dev, sizeof(*plane), GFP_KERNEL); - if (!plane) - return ERR_PTR(-ENOMEM); for (i = 0; i < ARRAY_SIZE(supported_formats); i++) formats[i] = supported_formats[i].fourcc; - ret = drm_universal_plane_init(drm, plane, 0xff, &hdlcd_plane_funcs, - formats, ARRAY_SIZE(formats), - NULL, - DRM_PLANE_TYPE_PRIMARY, NULL); - if (ret) - return ERR_PTR(ret); + plane = drmm_universal_plane_alloc(drm, struct drm_plane, dev, 0xff, + &hdlcd_plane_funcs, + formats, ARRAY_SIZE(formats), + NULL, DRM_PLANE_TYPE_PRIMARY, NULL); + if (IS_ERR(plane)) + return plane; drm_plane_helper_add(plane, &hdlcd_plane_helper_funcs); hdlcd->plane = plane; @@ -317,7 +326,7 @@ static struct drm_plane *hdlcd_plane_init(struct drm_device *drm) int hdlcd_setup_crtc(struct drm_device *drm) { - struct hdlcd_drm_private *hdlcd = drm->dev_private; + struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm); struct drm_plane *primary; int ret; |