v2: code review changes
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>
Reviewed-by: Bob Paauwe <bob.j.paauwe@xxxxxxxxx>
---
drivers/gpu/drm/kmb/kmb_plane.c | 14 +++++++++++++-
drivers/gpu/drm/kmb/kmb_regs.h | 1 +
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index 74a3573..cb05cb8 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -208,7 +208,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
unsigned int dma_len;
struct kmb_plane *kmb_plane = to_kmb_plane(plane);
unsigned int dma_cfg;
- unsigned int ctrl = 0, val = 0;
+ unsigned int ctrl = 0, val = 0, out_format = 0;
unsigned int src_w, src_h, crtc_x, crtc_y;
unsigned char plane_id = kmb_plane->id;
@@ -279,6 +279,18 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
/* enable DMA */
kmb_write(lcd, LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
+ /* FIXME no doc on how to set output format - may need to change
+ * this later
+ */
+ if (val & LCD_LAYER_BGR_ORDER)
+ out_format |= LCD_OUTF_BGR_ORDER;
+ else if (val & LCD_LAYER_CRCB_ORDER)
+ out_format |= LCD_OUTF_CRCB_ORDER;
+ /* do not interleave RGB channels for mipi Tx compatibility */
+ out_format |= LCD_OUTF_MIPI_RGB_MODE;
+ /* pixel format from LCD_LAYER_CFG */
+ out_format |= ((val >> 9) & 0x1F);
+ kmb_write(lcd, LCD_OUT_FORMAT_CFG, out_format);
}
static const struct drm_plane_helper_funcs kmb_plane_helper_funcs = {
diff --git a/drivers/gpu/drm/kmb/kmb_regs.h b/drivers/gpu/drm/kmb/kmb_regs.h
index 8346a04..8b67f2b 100644
--- a/drivers/gpu/drm/kmb/kmb_regs.h
+++ b/drivers/gpu/drm/kmb/kmb_regs.h
@@ -320,6 +320,7 @@
#define LCD_OUTF_BGR_ORDER (1 << 5)
#define LCD_OUTF_Y_ORDER (1 << 6)
#define LCD_OUTF_CRCB_ORDER (1 << 7)
+#define LCD_OUTF_MIPI_RGB_MODE (1 << 18)
#define LCD_HSYNC_WIDTH (0x4 * 0x801)
#define LCD_H_BACKPORCH (0x4 * 0x802)
--
2.7.4
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