Re: [PATCH 1/2] drm: xlnx: add is_layer_vid() to simplify the code
From: Paul Cercueil
Date: Mon May 17 2021 - 12:48:56 EST
Hi Quanyang,
Le jeu., mai 13 2021 at 19:45:39 +0800, quanyang.wang@xxxxxxxxxxxxx a
écrit :
From: Quanyang Wang <quanyang.wang@xxxxxxxxxxxxx>
Add a new function is_layer_vid() to simplify the code that
judges if a layer is the video layer.
Signed-off-by: Quanyang Wang <quanyang.wang@xxxxxxxxxxxxx>
---
drivers/gpu/drm/xlnx/zynqmp_disp.c | 39
+++++++++++++++++-------------
1 file changed, 22 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c
b/drivers/gpu/drm/xlnx/zynqmp_disp.c
index 109d627968ac..c55e24412f8c 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
@@ -434,30 +434,35 @@ static void zynqmp_disp_avbuf_write(struct
zynqmp_disp_avbuf *avbuf,
writel(val, avbuf->base + reg);
}
+static bool is_layer_vid(struct zynqmp_disp_layer *layer)
'layer' should be const.
+{
+ return (layer->id == ZYNQMP_DISP_LAYER_VID) ? true : false;
return layer->id == ZYNQMP_DISP_LAYER_VID;
The rest looks good.
With these fixed:
Acked-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Cheers,
-Paul
+}
+
/**
* zynqmp_disp_avbuf_set_format - Set the input format for a layer
* @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @layer: The layer
* @fmt: The format information
*
* Set the video buffer manager format for @layer to @fmt.
*/
static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp_avbuf
*avbuf,
- enum zynqmp_disp_layer_id layer,
+ struct zynqmp_disp_layer *layer,
const struct zynqmp_disp_format *fmt)
{
unsigned int i;
u32 val;
val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_FMT);
- val &= layer == ZYNQMP_DISP_LAYER_VID
+ val &= is_layer_vid(layer)
? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK
: ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK;
val |= fmt->buf_fmt;
zynqmp_disp_avbuf_write(avbuf, ZYNQMP_DISP_AV_BUF_FMT, val);
for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_SF; i++) {
- unsigned int reg = layer == ZYNQMP_DISP_LAYER_VID
+ unsigned int reg = is_layer_vid(layer)
? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i)
: ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i);
@@ -573,19 +578,19 @@ static void
zynqmp_disp_avbuf_disable_audio(struct zynqmp_disp_avbuf *avbuf)
/**
* zynqmp_disp_avbuf_enable_video - Enable a video layer
* @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @layer: The layer
* @mode: Operating mode of layer
*
* Enable the video/graphics buffer for @layer.
*/
static void zynqmp_disp_avbuf_enable_video(struct zynqmp_disp_avbuf
*avbuf,
- enum zynqmp_disp_layer_id layer,
+ struct zynqmp_disp_layer *layer,
enum zynqmp_disp_layer_mode mode)
{
u32 val;
val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
- if (layer == ZYNQMP_DISP_LAYER_VID) {
+ if (is_layer_vid(layer)) {
val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MASK;
if (mode == ZYNQMP_DISP_LAYER_NONLIVE)
val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MEM;
@@ -605,17 +610,17 @@ static void
zynqmp_disp_avbuf_enable_video(struct zynqmp_disp_avbuf *avbuf,
/**
* zynqmp_disp_avbuf_disable_video - Disable a video layer
* @avbuf: Audio/video buffer manager
- * @layer: The layer ID
+ * @layer: The layer
*
* Disable the video/graphics buffer for @layer.
*/
static void zynqmp_disp_avbuf_disable_video(struct zynqmp_disp_avbuf
*avbuf,
- enum zynqmp_disp_layer_id layer)
+ struct zynqmp_disp_layer *layer)
{
u32 val;
val = zynqmp_disp_avbuf_read(avbuf, ZYNQMP_DISP_AV_BUF_OUTPUT);
- if (layer == ZYNQMP_DISP_LAYER_VID) {
+ if (is_layer_vid(layer)) {
val &= ~ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_MASK;
val |= ZYNQMP_DISP_AV_BUF_OUTPUT_VID1_NONE;
} else {
@@ -807,7 +812,7 @@ static void
zynqmp_disp_blend_layer_set_csc(struct zynqmp_disp_blend *blend,
}
}
- if (layer->id == ZYNQMP_DISP_LAYER_VID)
+ if (is_layer_vid(layer))
reg = ZYNQMP_DISP_V_BLEND_IN1CSC_COEFF(0);
else
reg = ZYNQMP_DISP_V_BLEND_IN2CSC_COEFF(0);
@@ -818,7 +823,7 @@ static void
zynqmp_disp_blend_layer_set_csc(struct zynqmp_disp_blend *blend,
zynqmp_disp_blend_write(blend, reg + 8, coeffs[i + swap[2]]);
}
- if (layer->id == ZYNQMP_DISP_LAYER_VID)
+ if (is_layer_vid(layer))
reg = ZYNQMP_DISP_V_BLEND_IN1CSC_OFFSET(0);
else
reg = ZYNQMP_DISP_V_BLEND_IN2CSC_OFFSET(0);
@@ -1025,7 +1030,7 @@ zynqmp_disp_layer_find_format(struct
zynqmp_disp_layer *layer,
*/
static void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer)
{
- zynqmp_disp_avbuf_enable_video(&layer->disp->avbuf, layer->id,
+ zynqmp_disp_avbuf_enable_video(&layer->disp->avbuf, layer,
ZYNQMP_DISP_LAYER_NONLIVE);
zynqmp_disp_blend_layer_enable(&layer->disp->blend, layer);
@@ -1046,7 +1051,7 @@ static void zynqmp_disp_layer_disable(struct
zynqmp_disp_layer *layer)
for (i = 0; i < layer->drm_fmt->num_planes; i++)
dmaengine_terminate_sync(layer->dmas[i].chan);
- zynqmp_disp_avbuf_disable_video(&layer->disp->avbuf, layer->id);
+ zynqmp_disp_avbuf_disable_video(&layer->disp->avbuf, layer);
zynqmp_disp_blend_layer_disable(&layer->disp->blend, layer);
}
@@ -1067,7 +1072,7 @@ static void zynqmp_disp_layer_set_format(struct
zynqmp_disp_layer *layer,
layer->disp_fmt = zynqmp_disp_layer_find_format(layer,
info->format);
layer->drm_fmt = info;
- zynqmp_disp_avbuf_set_format(&layer->disp->avbuf, layer->id,
+ zynqmp_disp_avbuf_set_format(&layer->disp->avbuf, layer,
layer->disp_fmt);
/*
@@ -1244,8 +1249,8 @@ static int zynqmp_disp_create_planes(struct
zynqmp_disp *disp)
drm_formats[j] = layer->info->formats[j].drm_fmt;
/* Graphics layer is primary, and video layer is overlay. */
- type = i == ZYNQMP_DISP_LAYER_GFX
- ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
+ type = is_layer_vid(layer)
+ ? DRM_PLANE_TYPE_OVERLAY : DRM_PLANE_TYPE_PRIMARY;
ret = drm_universal_plane_init(disp->drm, &layer->plane, 0,
&zynqmp_disp_plane_funcs,
drm_formats,