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drm/meson: Use optional canvas provider 

This is the first step into converting the meson/drm driver to use
the canvas module.

If a canvas provider node is detected in DT, use it. Otherwise,
fall back to what is currently being done.

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
[narmstrong: added back priv in meson_drv_unbind()]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181105104508.23090-3-mjourdan@baylibre.com
hifive-unleashed-5.1
Maxime Jourdan 2018-11-05 11:45:08 +01:00 committed by Neil Armstrong
parent 2b80b98b72
commit 66cae477c3
5 changed files with 52 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/meson/Kconfig
View File

@ -7,6 +7,7 @@ config DRM_MESON
select DRM_GEM_CMA_HELPER
select VIDEOMODE_HELPERS
select REGMAP_MMIO
select MESON_CANVAS
config DRM_MESON_DW_HDMI
tristate "HDMI Synopsys Controller support for Amlogic Meson Display"

14
drivers/gpu/drm/meson/meson_crtc.c
View File

@ -193,10 +193,16 @@ void meson_crtc_irq(struct meson_drm *priv)
} else
meson_vpp_disable_interlace_vscaler_osd1(priv);
meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
priv->viu.osd1_addr, priv->viu.osd1_stride,
priv->viu.osd1_height, MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR);
if (priv->canvas)
meson_canvas_config(priv->canvas, priv->canvas_id_osd1,
priv->viu.osd1_addr, priv->viu.osd1_stride,
priv->viu.osd1_height, MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR, 0);
else
meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
priv->viu.osd1_addr, priv->viu.osd1_stride,
priv->viu.osd1_height, MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR);
/* Enable OSD1 */
writel_bits_relaxed(VPP_OSD1_POSTBLEND, VPP_OSD1_POSTBLEND,

47
drivers/gpu/drm/meson/meson_drv.c
View File

@ -208,24 +208,33 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
goto free_drm;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmc");
if (!res) {
ret = -EINVAL;
goto free_drm;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
ret = -EADDRNOTAVAIL;
goto free_drm;
}
priv->canvas = meson_canvas_get(dev);
if (!IS_ERR(priv->canvas)) {
ret = meson_canvas_alloc(priv->canvas, &priv->canvas_id_osd1);
if (ret)
goto free_drm;
} else {
priv->canvas = NULL;
priv->dmc = devm_regmap_init_mmio(dev, regs,
&meson_regmap_config);
if (IS_ERR(priv->dmc)) {
dev_err(&pdev->dev, "Couldn't create the DMC regmap\n");
ret = PTR_ERR(priv->dmc);
goto free_drm;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmc");
if (!res) {
ret = -EINVAL;
goto free_drm;
}
/* Simply ioremap since it may be a shared register zone */
regs = devm_ioremap(dev, res->start, resource_size(res));
if (!regs) {
ret = -EADDRNOTAVAIL;
goto free_drm;
}
priv->dmc = devm_regmap_init_mmio(dev, regs,
&meson_regmap_config);
if (IS_ERR(priv->dmc)) {
dev_err(&pdev->dev, "Couldn't create the DMC regmap\n");
ret = PTR_ERR(priv->dmc);
goto free_drm;
}
}
priv->vsync_irq = platform_get_irq(pdev, 0);
@ -300,6 +309,10 @@ static int meson_drv_bind(struct device *dev)
static void meson_drv_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
struct meson_drm *priv = drm->dev_private;
if (priv->canvas)
meson_canvas_free(priv->canvas, priv->canvas_id_osd1);
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);

4
drivers/gpu/drm/meson/meson_drv.h
View File

@ -22,6 +22,7 @@
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/of.h>
#include <linux/soc/amlogic/meson-canvas.h>
#include <drm/drmP.h>
struct meson_drm {
@ -31,6 +32,9 @@ struct meson_drm {
struct regmap *dmc;
int vsync_irq;
struct meson_canvas *canvas;
u8 canvas_id_osd1;
struct drm_device *drm;
struct drm_crtc *crtc;
struct drm_plane *primary_plane;

8
drivers/gpu/drm/meson/meson_plane.c
View File

@ -90,6 +90,7 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
.y2 = state->crtc_y + state->crtc_h,
};
unsigned long flags;
u8 canvas_id_osd1;
/*
* Update Coordinates
@ -104,8 +105,13 @@ static void meson_plane_atomic_update(struct drm_plane *plane,
(0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
OSD_BLK0_ENABLE;
if (priv->canvas)
canvas_id_osd1 = priv->canvas_id_osd1;
else
canvas_id_osd1 = MESON_CANVAS_ID_OSD1;
/* Set up BLK0 to point to the right canvas */
priv->viu.osd1_blk0_cfg[0] = ((MESON_CANVAS_ID_OSD1 << OSD_CANVAS_SEL) |
priv->viu.osd1_blk0_cfg[0] = ((canvas_id_osd1 << OSD_CANVAS_SEL) |
OSD_ENDIANNESS_LE);
/* On GXBB, Use the old non-HDR RGB2YUV converter */