[PATCH 2/2] drm/meson: Use optional canvas provider
From: Maxime Jourdan
Date: Mon Nov 05 2018 - 05:45:20 EST
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@xxxxxxxxxxxx>
---
drivers/gpu/drm/meson/Kconfig | 1 +
drivers/gpu/drm/meson/meson_crtc.c | 14 ++++++---
drivers/gpu/drm/meson/meson_drv.c | 46 ++++++++++++++++++-----------
drivers/gpu/drm/meson/meson_drv.h | 4 +++
drivers/gpu/drm/meson/meson_plane.c | 8 ++++-
5 files changed, 51 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/meson/Kconfig b/drivers/gpu/drm/meson/Kconfig
index 3ce51d8dfe1c..c28b69f48555 100644
--- a/drivers/gpu/drm/meson/Kconfig
+++ b/drivers/gpu/drm/meson/Kconfig
@@ -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"
diff --git a/drivers/gpu/drm/meson/meson_crtc.c b/drivers/gpu/drm/meson/meson_crtc.c
index 05520202c967..b3bc0b0ee07f 100644
--- a/drivers/gpu/drm/meson/meson_crtc.c
+++ b/drivers/gpu/drm/meson/meson_crtc.c
@@ -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,
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index d3443125e661..b39c38c2350d 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -216,24 +216,33 @@ 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);
@@ -315,6 +324,9 @@ 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);
drm_fbdev_cma_fini(priv->fbdev);
diff --git a/drivers/gpu/drm/meson/meson_drv.h b/drivers/gpu/drm/meson/meson_drv.h
index 8450d6ac8c9b..728d0ca33732 100644
--- a/drivers/gpu/drm/meson/meson_drv.h
+++ b/drivers/gpu/drm/meson/meson_drv.h
@@ -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_fbdev_cma *fbdev;
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index 12c80dfcff59..51bec8e98a39 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -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 */
--
2.19.1