media: staging: rkisp1: cap: change the logic for writing to uv swap register

The register RKISP1_CIF_MI_XTD_FORMAT_CTRL is currently written
with "on" only if the u,v streams need to be swapped. This patch
also write to it with "off" if they don't need to be swapped.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-capture.c

@@ -383,12 +383,12 @@ static void rkisp1_mp_config(struct rkisp1_capture *cap)
 		     cap->config->mi.cr_size_init);
 
 	rkisp1_irq_frame_end_enable(cap);
-	if (cap->pix.cfg->uv_swap) {
-		reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
-
+	reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
+	if (cap->pix.cfg->uv_swap)
 		reg |= RKISP1_CIF_MI_XTD_FMT_CTRL_MP_CB_CR_SWAP;
-		rkisp1_write(rkisp1, reg, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
-	}
+	else
+		reg &= ~RKISP1_CIF_MI_XTD_FMT_CTRL_MP_CB_CR_SWAP;
+	rkisp1_write(rkisp1, reg, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
 
 	rkisp1_mi_config_ctrl(cap);
 
@@ -406,7 +406,7 @@ static void rkisp1_sp_config(struct rkisp1_capture *cap)
 {
 	const struct v4l2_pix_format_mplane *pixm = &cap->pix.fmt;
 	struct rkisp1_device *rkisp1 = cap->rkisp1;
-	u32 mi_ctrl;
+	u32 mi_ctrl, reg;
 
 	rkisp1_write(rkisp1, rkisp1_pixfmt_comp_size(pixm, RKISP1_PLANE_Y),
 		     cap->config->mi.y_size_init);
@@ -420,12 +420,13 @@ static void rkisp1_sp_config(struct rkisp1_capture *cap)
 	rkisp1_write(rkisp1, cap->sp_y_stride, RKISP1_CIF_MI_SP_Y_LLENGTH);
 
 	rkisp1_irq_frame_end_enable(cap);
-	if (cap->pix.cfg->uv_swap) {
-		u32 reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
 
+	reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
+	if (cap->pix.cfg->uv_swap)
 		reg |= RKISP1_CIF_MI_XTD_FMT_CTRL_SP_CB_CR_SWAP;
-		rkisp1_write(rkisp1, reg, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
-	}
+	else
+		reg &= ~RKISP1_CIF_MI_XTD_FMT_CTRL_SP_CB_CR_SWAP;
+	rkisp1_write(rkisp1, reg, RKISP1_CIF_MI_XTD_FORMAT_CTRL);
 
 	rkisp1_mi_config_ctrl(cap);