linux-kernel - [PATCH 3/3] drm/rockchip: Add support 10bit yuv format

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Date:   Wed, 25 Sep 2019 16:06:40 +0800
From:   Sandy Huang <hjc@...k-chips.com>
To:     dri-devel@...ts.freedesktop.org, Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Ayan.Halder@....com, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] drm/rockchip: Add support 10bit yuv format

Add support 10bit yuv format display for rockchip some socs,
include:
    RK3288/RK3228/RK3328/RK3368/RK3399

Signed-off-by: Sandy Huang <hjc@...k-chips.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 16 ++++++++++++++++
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h |  1 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c |  2 ++
 3 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index ce5b45d..9cb9fff 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -249,6 +249,21 @@ static bool has_rb_swapped(uint32_t format)
 	}
 }
 
+static bool is_yuv_10bit(uint32_t format)
+{
+	switch (format) {
+	case DRM_FORMAT_NV12_10:
+	case DRM_FORMAT_NV21_10:
+	case DRM_FORMAT_NV16_10:
+	case DRM_FORMAT_NV61_10:
+	case DRM_FORMAT_NV24_10:
+	case DRM_FORMAT_NV42_10:
+		return true;
+	default:
+		return false;
+	}
+}
+
 static int vop_format_get_bpp(u32 format, u8 plane)
 {
 	const struct drm_format_info *info;
@@ -890,6 +905,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
 		dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
 		VOP_WIN_SET(vop, win, uv_vir, DIV_ROUND_UP(fb->pitches[1], 4));
 		VOP_WIN_SET(vop, win, uv_mst, dma_addr);
+		VOP_WIN_SET(vop, win, fmt_10, is_yuv_10bit(fb->format->format));
 
 		for (i = 0; i < NUM_YUV2YUV_COEFFICIENTS; i++) {
 			VOP_WIN_YUV2YUV_COEFFICIENT_SET(vop,
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index 2149a889..adc2b0b5 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -133,6 +133,7 @@ struct vop_win_phy {
 	struct vop_reg gate;
 	struct vop_reg format;
 	struct vop_reg rb_swap;
+	struct vop_reg fmt_10;
 	struct vop_reg act_info;
 	struct vop_reg dsp_info;
 	struct vop_reg dsp_st;
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index d1494be..732e535 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -544,6 +544,7 @@ static const struct vop_win_phy rk3288_win01_data = {
 	.nformats = ARRAY_SIZE(formats_win_full),
 	.enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0),
 	.format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1),
+	.fmt_10 = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 4),
 	.rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12),
 	.act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0),
 	.dsp_info = VOP_REG(RK3288_WIN0_DSP_INFO, 0x0fff0fff, 0),
@@ -674,6 +675,7 @@ static const struct vop_win_phy rk3368_win01_data = {
 	.nformats = ARRAY_SIZE(formats_win_full),
 	.enable = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 0),
 	.format = VOP_REG(RK3368_WIN0_CTRL0, 0x7, 1),
+	.fmt_10 = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 4),
 	.rb_swap = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 12),
 	.x_mir_en = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 21),
 	.y_mir_en = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 22),
-- 
2.7.4