The silcon and components around the PL111 may require some
variants to perform special set-up of the display. Add two
callbacks to manage this.
Reviewed-by: Eric Anholt <eric@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
ChangeLog v2->v3:
- Rebase on DRM-TIP
ChangeLog v1->v2:
- Rebase on other display driver changes.
---
drivers/gpu/drm/pl111/pl111_display.c | 6 ++++++
drivers/gpu/drm/pl111/pl111_drm.h | 3 +++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/pl111/pl111_display.c b/drivers/gpu/drm/pl111/pl111_display.c
index b7df9f5df881..68847a074331 100644
--- a/drivers/gpu/drm/pl111/pl111_display.c
+++ b/drivers/gpu/drm/pl111/pl111_display.c
@@ -208,6 +208,9 @@ static void pl111_display_enable(struct drm_simple_display_pipe *pipe,
*/
msleep(20);
+ if (priv->variant_display_enable)
+ priv->variant_display_enable(drm, fb->format->format);
+
/* Power Up */
cntl |= CNTL_LCDPWR;
writel(cntl, priv->regs + priv->ctrl);
@@ -237,6 +240,9 @@ void pl111_display_disable(struct drm_simple_display_pipe *pipe)
*/
msleep(20);
+ if (priv->variant_display_disable)
+ priv->variant_display_disable(drm);
+
/* Disable */
writel(0, priv->regs + priv->ctrl);
diff --git a/drivers/gpu/drm/pl111/pl111_drm.h b/drivers/gpu/drm/pl111/pl111_drm.h
index b380a7b4fb58..440f53ebee8c 100644
--- a/drivers/gpu/drm/pl111/pl111_drm.h
+++ b/drivers/gpu/drm/pl111/pl111_drm.h
@@ -26,6 +26,7 @@
#include <drm/drm_panel.h>
#include <drm/drm_bridge.h>
#include <linux/clk-provider.h>
+#include <linux/interrupt.h>
#define CLCD_IRQ_NEXTBASE_UPDATE BIT(2)
@@ -66,6 +67,8 @@ struct pl111_drm_dev_private {
*/
spinlock_t tim2_lock;
const struct pl111_variant_data *variant;
+ void (*variant_display_enable) (struct drm_device *drm, u32 format);
+ void (*variant_display_disable) (struct drm_device *drm);
};
int pl111_display_init(struct drm_device *dev);
--
2.13.5
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