The VID_REG_FLD_MOD function takes the start and end bits as parameter
and will generate a mask out of them.

This makes it difficult to share the masks between callers, since we now
need two arguments and to keep them consistent.

Let's change VID_REG_FLD_MOD to take the mask as an argument instead,
and let the caller create the mask. Eventually, this mask will be moved
to a define.

Signed-off-by: Maxime Ripard <mrip...@kernel.org>
---
 drivers/gpu/drm/tidss/tidss_dispc.c | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c 
b/drivers/gpu/drm/tidss/tidss_dispc.c
index 
d276ad881706057acabf6895f0c1f6758693504a..c22036d2b1dc2115245014d2e0572ac6bffa77ef
 100644
--- a/drivers/gpu/drm/tidss/tidss_dispc.c
+++ b/drivers/gpu/drm/tidss/tidss_dispc.c
@@ -630,14 +630,14 @@ static u32 VID_REG_GET(struct dispc_device *dispc, u32 
hw_plane, u32 idx,
 {
        return FIELD_GET(mask, dispc_vid_read(dispc, hw_plane, idx));
 }
 
 static void VID_REG_FLD_MOD(struct dispc_device *dispc, u32 hw_plane, u32 idx,
-                           u32 val, u32 start, u32 end)
+                           u32 val, u32 mask)
 {
        dispc_vid_write(dispc, hw_plane, idx,
-                       FLD_MOD(dispc_vid_read(dispc, hw_plane, idx), val, 
GENMASK(start, end)));
+                       FLD_MOD(dispc_vid_read(dispc, hw_plane, idx), val, 
mask));
 }
 
 static u32 VP_REG_GET(struct dispc_device *dispc, u32 vp, u32 idx,
                      u32 start, u32 end)
 {
@@ -1756,11 +1756,12 @@ static void dispc_vid_csc_setup(struct dispc_device 
*dispc, u32 hw_plane,
 }
 
 static void dispc_vid_csc_enable(struct dispc_device *dispc, u32 hw_plane,
                                 bool enable)
 {
-       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, !!enable, 9, 9);
+       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, !!enable,
+                       GENMASK(9, 9));
 }
 
 /* SCALER */
 
 static u32 dispc_calc_fir_inc(u32 in, u32 out)
@@ -2013,24 +2014,24 @@ static void dispc_vid_set_scaling(struct dispc_device 
*dispc,
                                  u32 hw_plane,
                                  struct dispc_scaling_params *sp,
                                  u32 fourcc)
 {
        /* HORIZONTAL RESIZE ENABLE */
-       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES,
-                       sp->scale_x, 7, 7);
+       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, sp->scale_x,
+                       GENMASK(7, 7));
 
        /* VERTICAL RESIZE ENABLE */
-       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES,
-                       sp->scale_y, 8, 8);
+       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, sp->scale_y,
+                       GENMASK(8, 8));
 
        /* Skip the rest if no scaling is used */
        if (!sp->scale_x && !sp->scale_y)
                return;
 
        /* VERTICAL 5-TAPS  */
-       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES,
-                       sp->five_taps, 21, 21);
+       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, sp->five_taps,
+                       GENMASK(21, 21));
 
        if (dispc_fourcc_is_yuv(fourcc)) {
                if (sp->scale_x) {
                        dispc_vid_write(dispc, hw_plane, DISPC_VID_FIRH2,
                                        sp->fir_xinc_uv);
@@ -2116,11 +2117,11 @@ static void dispc_plane_set_pixel_format(struct 
dispc_device *dispc,
 
        for (i = 0; i < ARRAY_SIZE(dispc_color_formats); ++i) {
                if (dispc_color_formats[i].fourcc == fourcc) {
                        VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES,
                                        dispc_color_formats[i].dss_code,
-                                       6, 1);
+                                       GENMASK(6, 1));
                        return;
                }
        }
 
        WARN_ON(1);
@@ -2294,19 +2295,20 @@ void dispc_plane_setup(struct dispc_device *dispc, u32 
hw_plane,
        dispc_vid_write(dispc, hw_plane, DISPC_VID_GLOBAL_ALPHA,
                        0xFF & (state->alpha >> 8));
 
        if (state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI)
                VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, 1,
-                               28, 28);
+                               GENMASK(28, 28));
        else
                VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, 0,
-                               28, 28);
+                               GENMASK(28, 28));
 }
 
 void dispc_plane_enable(struct dispc_device *dispc, u32 hw_plane, bool enable)
 {
-       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, !!enable, 0, 0);
+       VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, !!enable,
+                       GENMASK(0, 0));
 }
 
 static u32 dispc_vid_get_fifo_size(struct dispc_device *dispc, u32 hw_plane)
 {
        return VID_REG_GET(dispc, hw_plane, DISPC_VID_BUF_SIZE_STATUS,
@@ -2371,11 +2373,11 @@ static void dispc_k2g_plane_init(struct dispc_device 
*dispc)
                 * Prefetch up to fifo high-threshold value to minimize the
                 * possibility of underflows. Note that this means the PRELOAD
                 * register is ignored.
                 */
                VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, 1,
-                               19, 19);
+                               GENMASK(19, 19));
        }
 }
 
 static void dispc_k3_plane_init(struct dispc_device *dispc)
 {
@@ -2422,11 +2424,11 @@ static void dispc_k3_plane_init(struct dispc_device 
*dispc)
 
                dispc_vid_write(dispc, hw_plane, DISPC_VID_PRELOAD, preload);
 
                /* Prefech up to PRELOAD value */
                VID_REG_FLD_MOD(dispc, hw_plane, DISPC_VID_ATTRIBUTES, 0,
-                               19, 19);
+                               GENMASK(19, 19));
        }
 }
 
 static void dispc_plane_init(struct dispc_device *dispc)
 {

-- 
2.50.1

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