media: rkisp1: isp: Constify various local variables

A set of local variables point to structure that are not meant to be
modified. Constify them.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 944d7bfa9b41ad6c2264863d1ce337647dcc2881..2ba227b2f6a1e29091ec8aece04b47bd6f15b2d8 100644 (file)
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -113,7 +113,7 @@ rkisp1_isp_get_pad_crop(struct rkisp1_isp *isp,
  */
 static void rkisp1_config_ism(struct rkisp1_isp *isp)
 {
-       struct v4l2_rect *src_crop =
+       const struct v4l2_rect *src_crop =
                rkisp1_isp_get_pad_crop(isp, NULL,
                                        RKISP1_ISP_PAD_SOURCE_VIDEO,
                                        V4L2_SUBDEV_FORMAT_ACTIVE);
@@ -146,8 +146,8 @@ static int rkisp1_config_isp(struct rkisp1_isp *isp,
        u32 isp_ctrl = 0, irq_mask = 0, acq_mult = 0, acq_prop = 0;
        const struct rkisp1_mbus_info *sink_fmt = isp->sink_fmt;
        const struct rkisp1_mbus_info *src_fmt = isp->src_fmt;
-       struct v4l2_mbus_framefmt *sink_frm;
-       struct v4l2_rect *sink_crop;
+       const struct v4l2_mbus_framefmt *sink_frm;
+       const struct v4l2_rect *sink_crop;
 
        sink_frm = rkisp1_isp_get_pad_fmt(isp, NULL,
                                          RKISP1_ISP_PAD_SINK_VIDEO,
@@ -557,7 +557,7 @@ static void rkisp1_isp_set_sink_crop(struct rkisp1_isp *isp,
                                     struct v4l2_rect *r, unsigned int which)
 {
        struct v4l2_rect *sink_crop, *src_crop;
-       struct v4l2_mbus_framefmt *sink_fmt;
+       const struct v4l2_mbus_framefmt *sink_fmt;
 
        sink_crop = rkisp1_isp_get_pad_crop(isp, sd_state,
                                            RKISP1_ISP_PAD_SINK_VIDEO,
@@ -742,7 +742,7 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 {
        struct rkisp1_isp *isp = to_rkisp1_isp(sd);
        struct rkisp1_device *rkisp1 = isp->rkisp1;
-       struct rkisp1_sensor_async *asd;
+       const struct rkisp1_sensor_async *asd;
        int ret;
 
        if (!enable) {