[PATCH v2 11/22] drm: mxsfb: Stop using DRM simple display pipeline helper
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Sun Jul 26 18:28:04 UTC 2020
Hi Stefan,
On Fri, Jul 17, 2020 at 05:06:55AM +0300, Laurent Pinchart wrote:
> On Thu, Jul 09, 2020 at 12:25:42PM +0200, Stefan Agner wrote:
> > On 2020-06-16 03:50, Laurent Pinchart wrote:
> >> On Thu, Jun 11, 2020 at 09:33:11PM +0200, Stefan Agner wrote:
> >>> On 2020-05-30 05:10, Laurent Pinchart wrote:
> >>>> The DRM simple display pipeline helper only supports a single plane. In
> >>>> order to prepare for support of the alpha plane on i.MX6SX and i.MX7,
> >>>> move away from the helper. No new feature is added.
> >>>>
> >>>> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> >>>> ---
> >>>> Changes since v1:
> >>>>
> >>>> - Move after mxsfb_crtc.c rename to mxsfb_kms.c
> >>>> ---
> >>>> drivers/gpu/drm/mxsfb/mxsfb_drv.c | 108 +++---------------
> >>>> drivers/gpu/drm/mxsfb/mxsfb_drv.h | 23 ++--
> >>>> drivers/gpu/drm/mxsfb/mxsfb_kms.c | 184 +++++++++++++++++++++++++++---
> >>>> 3 files changed, 197 insertions(+), 118 deletions(-)
> >>>>
> >>>> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> >>>> b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> >>>> index 204c1e52e9aa..a8da92976d13 100644
> >>>> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> >>>> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> >>>> @@ -10,22 +10,23 @@
> >>>>
> >>>> #include <linux/clk.h>
> >>>> #include <linux/dma-mapping.h>
> >>>> +#include <linux/io.h>
> >>>> #include <linux/module.h>
> >>>> #include <linux/of_device.h>
> >>>> +#include <linux/platform_device.h>
> >>>> #include <linux/pm_runtime.h>
> >>>> -#include <linux/spinlock.h>
> >>>>
> >>>> -#include <drm/drm_atomic.h>
> >>>> #include <drm/drm_atomic_helper.h>
> >>>> -#include <drm/drm_crtc.h>
> >>>> +#include <drm/drm_bridge.h>
> >>>> +#include <drm/drm_connector.h>
> >>>> #include <drm/drm_drv.h>
> >>>> #include <drm/drm_fb_helper.h>
> >>>> #include <drm/drm_gem_cma_helper.h>
> >>>> #include <drm/drm_gem_framebuffer_helper.h>
> >>>> #include <drm/drm_irq.h>
> >>>> +#include <drm/drm_mode_config.h>
> >>>> #include <drm/drm_of.h>
> >>>> #include <drm/drm_probe_helper.h>
> >>>> -#include <drm/drm_simple_kms_helper.h>
> >>>> #include <drm/drm_vblank.h>
> >>>>
> >>>> #include "mxsfb_drv.h"
> >>>> @@ -57,17 +58,6 @@ static const struct mxsfb_devdata mxsfb_devdata[] = {
> >>>> },
> >>>> };
> >>>>
> >>>> -static const uint32_t mxsfb_formats[] = {
> >>>> - DRM_FORMAT_XRGB8888,
> >>>> - DRM_FORMAT_RGB565
> >>>> -};
> >>>> -
> >>>> -static struct mxsfb_drm_private *
> >>>> -drm_pipe_to_mxsfb_drm_private(struct drm_simple_display_pipe *pipe)
> >>>> -{
> >>>> - return container_of(pipe, struct mxsfb_drm_private, pipe);
> >>>> -}
> >>>> -
> >>>> void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> if (mxsfb->clk_axi)
> >>>> @@ -90,77 +80,6 @@ static const struct drm_mode_config_helper_funcs
> >>>> mxsfb_mode_config_helpers = {
> >>>> .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
> >>>> };
> >>>>
> >>>> -static void mxsfb_pipe_enable(struct drm_simple_display_pipe *pipe,
> >>>> - struct drm_crtc_state *crtc_state,
> >>>> - struct drm_plane_state *plane_state)
> >>>> -{
> >>>> - struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
> >>>> - struct drm_device *drm = pipe->plane.dev;
> >>>> -
> >>>> - pm_runtime_get_sync(drm->dev);
> >>>> - mxsfb_crtc_enable(mxsfb);
> >>>> -}
> >>>> -
> >>>> -static void mxsfb_pipe_disable(struct drm_simple_display_pipe *pipe)
> >>>> -{
> >>>> - struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
> >>>> - struct drm_device *drm = pipe->plane.dev;
> >>>> - struct drm_crtc *crtc = &pipe->crtc;
> >>>> - struct drm_pending_vblank_event *event;
> >>>> -
> >>>> - mxsfb_crtc_disable(mxsfb);
> >>>> - pm_runtime_put_sync(drm->dev);
> >>>> -
> >>>> - spin_lock_irq(&drm->event_lock);
> >>>> - event = crtc->state->event;
> >>>> - if (event) {
> >>>> - crtc->state->event = NULL;
> >>>> - drm_crtc_send_vblank_event(crtc, event);
> >>>> - }
> >>>> - spin_unlock_irq(&drm->event_lock);
> >>>> -}
> >>>> -
> >>>> -static void mxsfb_pipe_update(struct drm_simple_display_pipe *pipe,
> >>>> - struct drm_plane_state *plane_state)
> >>>> -{
> >>>> - struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
> >>>> -
> >>>> - mxsfb_plane_atomic_update(mxsfb, plane_state);
> >>>> -}
> >>>> -
> >>>> -static int mxsfb_pipe_enable_vblank(struct drm_simple_display_pipe *pipe)
> >>>> -{
> >>>> - struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
> >>>> -
> >>>> - /* Clear and enable VBLANK IRQ */
> >>>> - mxsfb_enable_axi_clk(mxsfb);
> >>>> - writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> - writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_SET);
> >>>> - mxsfb_disable_axi_clk(mxsfb);
> >>>> -
> >>>> - return 0;
> >>>> -}
> >>>> -
> >>>> -static void mxsfb_pipe_disable_vblank(struct drm_simple_display_pipe *pipe)
> >>>> -{
> >>>> - struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe);
> >>>> -
> >>>> - /* Disable and clear VBLANK IRQ */
> >>>> - mxsfb_enable_axi_clk(mxsfb);
> >>>> - writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> - writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> - mxsfb_disable_axi_clk(mxsfb);
> >>>> -}
> >>>> -
> >>>> -static struct drm_simple_display_pipe_funcs mxsfb_funcs = {
> >>>> - .enable = mxsfb_pipe_enable,
> >>>> - .disable = mxsfb_pipe_disable,
> >>>> - .update = mxsfb_pipe_update,
> >>>> - .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
> >>>> - .enable_vblank = mxsfb_pipe_enable_vblank,
> >>>> - .disable_vblank = mxsfb_pipe_disable_vblank,
> >>>> -};
> >>>> -
> >>>> static int mxsfb_attach_bridge(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> struct drm_device *drm = mxsfb->drm;
> >>>> @@ -183,7 +102,7 @@ static int mxsfb_attach_bridge(struct
> >>>> mxsfb_drm_private *mxsfb)
> >>>> if (!bridge)
> >>>> return -ENODEV;
> >>>>
> >>>> - ret = drm_simple_display_pipe_attach_bridge(&mxsfb->pipe, bridge);
> >>>> + ret = drm_bridge_attach(&mxsfb->encoder, bridge, NULL, 0);
> >>>> if (ret) {
> >>>> DRM_DEV_ERROR(drm->dev,
> >>>> "failed to attach bridge: %d\n", ret);
> >>>> @@ -250,10 +169,9 @@ static int mxsfb_load(struct drm_device *drm,
> >>>> unsigned long flags)
> >>>> /* Modeset init */
> >>>> drm_mode_config_init(drm);
> >>>>
> >>>> - ret = drm_simple_display_pipe_init(drm, &mxsfb->pipe, &mxsfb_funcs,
> >>>> - mxsfb_formats, ARRAY_SIZE(mxsfb_formats), NULL, NULL);
> >>>> + ret = mxsfb_kms_init(mxsfb);
> >>>> if (ret < 0) {
> >>>> - dev_err(drm->dev, "Cannot setup simple display pipe\n");
> >>>> + dev_err(drm->dev, "Failed to initialize KMS pipeline\n");
> >>>> goto err_vblank;
> >>>> }
> >>>>
> >>>> @@ -309,11 +227,11 @@ static void mxsfb_unload(struct drm_device *drm)
> >>>> pm_runtime_disable(drm->dev);
> >>>> }
> >>>>
> >>>> -static void mxsfb_irq_preinstall(struct drm_device *drm)
> >>>> +static void mxsfb_irq_disable(struct drm_device *drm)
> >>>> {
> >>>> struct mxsfb_drm_private *mxsfb = drm->dev_private;
> >>>>
> >>>> - mxsfb_pipe_disable_vblank(&mxsfb->pipe);
> >>>> + mxsfb->crtc.funcs->disable_vblank(&mxsfb->crtc);
> >>>> }
> >>>>
> >>>> static irqreturn_t mxsfb_irq_handler(int irq, void *data)
> >>>> @@ -327,7 +245,7 @@ static irqreturn_t mxsfb_irq_handler(int irq, void *data)
> >>>> reg = readl(mxsfb->base + LCDC_CTRL1);
> >>>>
> >>>> if (reg & CTRL1_CUR_FRAME_DONE_IRQ)
> >>>> - drm_crtc_handle_vblank(&mxsfb->pipe.crtc);
> >>>> + drm_crtc_handle_vblank(&mxsfb->crtc);
> >>>>
> >>>> writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>>
> >>>> @@ -341,8 +259,8 @@ DEFINE_DRM_GEM_CMA_FOPS(fops);
> >>>> static struct drm_driver mxsfb_driver = {
> >>>> .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
> >>>> .irq_handler = mxsfb_irq_handler,
> >>>> - .irq_preinstall = mxsfb_irq_preinstall,
> >>>> - .irq_uninstall = mxsfb_irq_preinstall,
> >>>> + .irq_preinstall = mxsfb_irq_disable,
> >>>> + .irq_uninstall = mxsfb_irq_disable,
> >>>> .gem_free_object_unlocked = drm_gem_cma_free_object,
> >>>> .gem_vm_ops = &drm_gem_cma_vm_ops,
> >>>> .dumb_create = drm_gem_cma_dumb_create,
> >>>> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.h
> >>>> b/drivers/gpu/drm/mxsfb/mxsfb_drv.h
> >>>> index 0e3e5a63bbf9..edd766ad254f 100644
> >>>> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.h
> >>>> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.h
> >>>> @@ -8,7 +8,12 @@
> >>>> #ifndef __MXSFB_DRV_H__
> >>>> #define __MXSFB_DRV_H__
> >>>>
> >>>> -struct drm_device;
> >>>> +#include <drm/drm_crtc.h>
> >>>> +#include <drm/drm_device.h>
> >>>> +#include <drm/drm_encoder.h>
> >>>> +#include <drm/drm_plane.h>
> >>>> +
> >>>> +struct clk;
> >>>>
> >>>> struct mxsfb_devdata {
> >>>> unsigned int transfer_count;
> >>>> @@ -29,20 +34,22 @@ struct mxsfb_drm_private {
> >>>> struct clk *clk_disp_axi;
> >>>>
> >>>> struct drm_device *drm;
> >>>> - struct drm_simple_display_pipe pipe;
> >>>> + struct drm_plane plane;
> >>>> + struct drm_crtc crtc;
> >>>> + struct drm_encoder encoder;
> >>>> struct drm_connector *connector;
> >>>> struct drm_bridge *bridge;
> >>>> };
> >>>>
> >>>> -int mxsfb_setup_crtc(struct drm_device *dev);
> >>>> -int mxsfb_create_output(struct drm_device *dev);
> >>>> +static inline struct mxsfb_drm_private *
> >>>> +to_mxsfb_drm_private(struct drm_device *drm)
> >>>> +{
> >>>> + return drm->dev_private;
> >>>> +}
> >>>>
> >>>> void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb);
> >>>> void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb);
> >>>>
> >>>> -void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb);
> >>>> -void mxsfb_crtc_disable(struct mxsfb_drm_private *mxsfb);
> >>>> -void mxsfb_plane_atomic_update(struct mxsfb_drm_private *mxsfb,
> >>>> - struct drm_plane_state *state);
> >>>> +int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb);
> >>>>
> >>>> #endif /* __MXSFB_DRV_H__ */
> >>>> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
> >>>> b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
> >>>> index c4f1575b4210..8f339adb8d04 100644
> >>>> --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
> >>>> +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
> >>>> @@ -9,15 +9,21 @@
> >>>> */
> >>>>
> >>>> #include <linux/clk.h>
> >>>> +#include <linux/io.h>
> >>>> #include <linux/iopoll.h>
> >>>> +#include <linux/pm_runtime.h>
> >>>> #include <linux/spinlock.h>
> >>>>
> >>>> +#include <drm/drm_atomic.h>
> >>>> +#include <drm/drm_atomic_helper.h>
> >>>> #include <drm/drm_bridge.h>
> >>>> #include <drm/drm_crtc.h>
> >>>> +#include <drm/drm_encoder.h>
> >>>> #include <drm/drm_fb_cma_helper.h>
> >>>> #include <drm/drm_fourcc.h>
> >>>> #include <drm/drm_gem_cma_helper.h>
> >>>> -#include <drm/drm_simple_kms_helper.h>
> >>>> +#include <drm/drm_plane.h>
> >>>> +#include <drm/drm_plane_helper.h>
> >>>> #include <drm/drm_vblank.h>
> >>>>
> >>>> #include "mxsfb_drv.h"
> >>>> @@ -26,6 +32,10 @@
> >>>> /* 1 second delay should be plenty of time for block reset */
> >>>> #define RESET_TIMEOUT 1000000
> >>>>
> >>>> +/*
> >>>> -----------------------------------------------------------------------------
> >>>> + * CRTC
> >>>> + */
> >>>> +
> >>>> static u32 set_hsync_pulse_width(struct mxsfb_drm_private *mxsfb, u32 val)
> >>>> {
> >>>> return (val & mxsfb->devdata->hs_wdth_mask) <<
> >>>> @@ -35,9 +45,8 @@ static u32 set_hsync_pulse_width(struct
> >>>> mxsfb_drm_private *mxsfb, u32 val)
> >>>> /* Setup the MXSFB registers for decoding the pixels out of the framebuffer */
> >>>> static int mxsfb_set_pixel_fmt(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> - struct drm_crtc *crtc = &mxsfb->pipe.crtc;
> >>>> - struct drm_device *drm = crtc->dev;
> >>>> - const u32 format = crtc->primary->state->fb->format->format;
> >>>> + struct drm_device *drm = mxsfb->drm;
> >>>> + const u32 format = mxsfb->crtc.primary->state->fb->format->format;
> >>>> u32 ctrl, ctrl1;
> >>>>
> >>>> ctrl = CTRL_BYPASS_COUNT | CTRL_MASTER;
> >>>> @@ -71,8 +80,7 @@ static int mxsfb_set_pixel_fmt(struct
> >>>> mxsfb_drm_private *mxsfb)
> >>>>
> >>>> static void mxsfb_set_bus_fmt(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> - struct drm_crtc *crtc = &mxsfb->pipe.crtc;
> >>>> - struct drm_device *drm = crtc->dev;
> >>>> + struct drm_device *drm = mxsfb->drm;
> >>>> u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
> >>>> u32 reg;
> >>>>
> >>>> @@ -175,7 +183,7 @@ static int mxsfb_reset_block(struct
> >>>> mxsfb_drm_private *mxsfb)
> >>>>
> >>>> static dma_addr_t mxsfb_get_fb_paddr(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> - struct drm_framebuffer *fb = mxsfb->pipe.plane.state->fb;
> >>>> + struct drm_framebuffer *fb = mxsfb->plane.state->fb;
> >>>> struct drm_gem_cma_object *gem;
> >>>>
> >>>> if (!fb)
> >>>> @@ -190,8 +198,8 @@ static dma_addr_t mxsfb_get_fb_paddr(struct
> >>>> mxsfb_drm_private *mxsfb)
> >>>>
> >>>> static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb)
> >>>> {
> >>>> - struct drm_device *drm = mxsfb->pipe.crtc.dev;
> >>>> - struct drm_display_mode *m = &mxsfb->pipe.crtc.state->adjusted_mode;
> >>>> + struct drm_device *drm = mxsfb->crtc.dev;
> >>>> + struct drm_display_mode *m = &mxsfb->crtc.state->adjusted_mode;
> >>>> u32 bus_flags = mxsfb->connector->display_info.bus_flags;
> >>>> u32 vdctrl0, vsync_pulse_len, hsync_pulse_len;
> >>>> int err;
> >>>> @@ -273,10 +281,29 @@ static void mxsfb_crtc_mode_set_nofb(struct
> >>>> mxsfb_drm_private *mxsfb)
> >>>> mxsfb->base + LCDC_VDCTRL4);
> >>>> }
> >>>>
> >>>> -void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb)
> >>>> +static int mxsfb_crtc_atomic_check(struct drm_crtc *crtc,
> >>>> + struct drm_crtc_state *state)
> >>>> {
> >>>> + bool has_primary = state->plane_mask &
> >>>> + drm_plane_mask(crtc->primary);
> >>>> +
> >>>> + /* The primary plane has to be enabled when the CRTC is active. */
> >>>> + if (has_primary != state->active)
> >>>> + return -EINVAL;
> >>>
> >>> This actually fails some of the igt subtests of kms_vblank.
> >>>
> >>> I think it has to be:
> >>> if (state->active && !has_primary)
> >>>
> >>> With that, all kms_vblank tests succeed (or are skipped).
> >>>
> >>> With that fixed:
> >>> Reviewed-by: Stefan Agner <stefan at agner.ch>
> >>
> >> Good catch, this will be fixed in v3. Speaking of which, I'm still
> >> missing your review on 02/22 and 22/22. Do you plan to have a look at
> >> them ?
> >
> > Yeah sorry, I did initially miss them and sent a review a couple of
> > weeks ago.
> >
> > Would be good if you can send a v3 soon, I think it should still be
> > early enough to make it into the next merge window.
>
> I'm afraid I'm fairly busy at the moment :-( I'll try to give it a go
> next week, but it will be too late for v5.9.
Turns out I had already sent a v3 a month ago :-) I'll send a rebased v4
shortly.
> >>>> +
> >>>> + /* TODO: Is this needed ? */
> >>>> + return drm_atomic_add_affected_planes(state->state, crtc);
> >>>> +}
> >>>> +
> >>>> +static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc,
> >>>> + struct drm_crtc_state *old_state)
> >>>> +{
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
> >>>> + struct drm_device *drm = mxsfb->drm;
> >>>> dma_addr_t paddr;
> >>>>
> >>>> + pm_runtime_get_sync(drm->dev);
> >>>> +
> >>>> mxsfb_enable_axi_clk(mxsfb);
> >>>> mxsfb_crtc_mode_set_nofb(mxsfb);
> >>>>
> >>>> @@ -290,17 +317,100 @@ void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb)
> >>>> mxsfb_enable_controller(mxsfb);
> >>>> }
> >>>>
> >>>> -void mxsfb_crtc_disable(struct mxsfb_drm_private *mxsfb)
> >>>> +static void mxsfb_crtc_atomic_disable(struct drm_crtc *crtc,
> >>>> + struct drm_crtc_state *old_state)
> >>>> {
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
> >>>> + struct drm_device *drm = mxsfb->drm;
> >>>> + struct drm_pending_vblank_event *event;
> >>>> +
> >>>> mxsfb_disable_controller(mxsfb);
> >>>> mxsfb_disable_axi_clk(mxsfb);
> >>>> +
> >>>> + pm_runtime_put_sync(drm->dev);
> >>>> +
> >>>> + spin_lock_irq(&drm->event_lock);
> >>>> + event = crtc->state->event;
> >>>> + if (event) {
> >>>> + crtc->state->event = NULL;
> >>>> + drm_crtc_send_vblank_event(crtc, event);
> >>>> + }
> >>>> + spin_unlock_irq(&drm->event_lock);
> >>>> +}
> >>>> +
> >>>> +static int mxsfb_crtc_enable_vblank(struct drm_crtc *crtc)
> >>>> +{
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
> >>>> +
> >>>> + /* Clear and enable VBLANK IRQ */
> >>>> + mxsfb_enable_axi_clk(mxsfb);
> >>>> + writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> + writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_SET);
> >>>> + mxsfb_disable_axi_clk(mxsfb);
> >>>> +
> >>>> + return 0;
> >>>> +}
> >>>> +
> >>>> +static void mxsfb_crtc_disable_vblank(struct drm_crtc *crtc)
> >>>> +{
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
> >>>> +
> >>>> + /* Disable and clear VBLANK IRQ */
> >>>> + mxsfb_enable_axi_clk(mxsfb);
> >>>> + writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> + writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
> >>>> + mxsfb_disable_axi_clk(mxsfb);
> >>>> +}
> >>>> +
> >>>> +static const struct drm_crtc_helper_funcs mxsfb_crtc_helper_funcs = {
> >>>> + .atomic_check = mxsfb_crtc_atomic_check,
> >>>> + .atomic_enable = mxsfb_crtc_atomic_enable,
> >>>> + .atomic_disable = mxsfb_crtc_atomic_disable,
> >>>> +};
> >>>> +
> >>>> +static const struct drm_crtc_funcs mxsfb_crtc_funcs = {
> >>>> + .reset = drm_atomic_helper_crtc_reset,
> >>>> + .destroy = drm_crtc_cleanup,
> >>>> + .set_config = drm_atomic_helper_set_config,
> >>>> + .page_flip = drm_atomic_helper_page_flip,
> >>>> + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
> >>>> + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
> >>>> + .enable_vblank = mxsfb_crtc_enable_vblank,
> >>>> + .disable_vblank = mxsfb_crtc_disable_vblank,
> >>>> +};
> >>>> +
> >>>> +/*
> >>>> -----------------------------------------------------------------------------
> >>>> + * Encoder
> >>>> + */
> >>>> +
> >>>> +static const struct drm_encoder_funcs mxsfb_encoder_funcs = {
> >>>> + .destroy = drm_encoder_cleanup,
> >>>> +};
> >>>> +
> >>>> +/*
> >>>> -----------------------------------------------------------------------------
> >>>> + * Planes
> >>>> + */
> >>>> +
> >>>> +static int mxsfb_plane_atomic_check(struct drm_plane *plane,
> >>>> + struct drm_plane_state *plane_state)
> >>>> +{
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(plane->dev);
> >>>> + struct drm_crtc_state *crtc_state;
> >>>> +
> >>>> + crtc_state = drm_atomic_get_new_crtc_state(plane_state->state,
> >>>> + &mxsfb->crtc);
> >>>> +
> >>>> + return drm_atomic_helper_check_plane_state(plane_state, crtc_state,
> >>>> + DRM_PLANE_HELPER_NO_SCALING,
> >>>> + DRM_PLANE_HELPER_NO_SCALING,
> >>>> + false, true);
> >>>> }
> >>>>
> >>>> -void mxsfb_plane_atomic_update(struct mxsfb_drm_private *mxsfb,
> >>>> - struct drm_plane_state *state)
> >>>> +static void mxsfb_plane_atomic_update(struct drm_plane *plane,
> >>>> + struct drm_plane_state *old_pstate)
> >>>> {
> >>>> - struct drm_simple_display_pipe *pipe = &mxsfb->pipe;
> >>>> - struct drm_crtc *crtc = &pipe->crtc;
> >>>> + struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(plane->dev);
> >>>> + struct drm_crtc *crtc = &mxsfb->crtc;
> >>>> struct drm_pending_vblank_event *event;
> >>>> dma_addr_t paddr;
> >>>>
> >>>> @@ -324,3 +434,47 @@ void mxsfb_plane_atomic_update(struct
> >>>> mxsfb_drm_private *mxsfb,
> >>>> mxsfb_disable_axi_clk(mxsfb);
> >>>> }
> >>>> }
> >>>> +
> >>>> +static const struct drm_plane_helper_funcs mxsfb_plane_helper_funcs = {
> >>>> + .atomic_check = mxsfb_plane_atomic_check,
> >>>> + .atomic_update = mxsfb_plane_atomic_update,
> >>>> +};
> >>>> +
> >>>> +static const struct drm_plane_funcs mxsfb_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,
> >>>> +};
> >>>> +
> >>>> +static const uint32_t mxsfb_formats[] = {
> >>>> + DRM_FORMAT_XRGB8888,
> >>>> + DRM_FORMAT_RGB565
> >>>> +};
> >>>> +
> >>>> +int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb)
> >>>> +{
> >>>> + struct drm_encoder *encoder = &mxsfb->encoder;
> >>>> + struct drm_plane *plane = &mxsfb->plane;
> >>>> + struct drm_crtc *crtc = &mxsfb->crtc;
> >>>> + int ret;
> >>>> +
> >>>> + drm_plane_helper_add(plane, &mxsfb_plane_helper_funcs);
> >>>> + ret = drm_universal_plane_init(mxsfb->drm, plane, 0, &mxsfb_plane_funcs,
> >>>> + mxsfb_formats, ARRAY_SIZE(mxsfb_formats),
> >>>> + NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
> >>>> + if (ret)
> >>>> + return ret;
> >>>> +
> >>>> + drm_crtc_helper_add(crtc, &mxsfb_crtc_helper_funcs);
> >>>> + ret = drm_crtc_init_with_planes(mxsfb->drm, crtc, plane, NULL,
> >>>> + &mxsfb_crtc_funcs, NULL);
> >>>> + if (ret)
> >>>> + return ret;
> >>>> +
> >>>> + encoder->possible_crtcs = drm_crtc_mask(crtc);
> >>>> + return drm_encoder_init(mxsfb->drm, encoder, &mxsfb_encoder_funcs,
> >>>> + DRM_MODE_ENCODER_NONE, NULL);
> >>>> +}
--
Regards,
Laurent Pinchart
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