drm/panel: s6e8aa0: Use standard MIPI DSI function

Use the newly introduced mipi_dsi_set_maximum_return_packet_size()
function to replace an open-coded version.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/panel/panel-s6e8aa0.c b/drivers/gpu/drm/panel/panel-s6e8aa0.c
index 17bc799..373bcbd 100644 (file)
--- a/drivers/gpu/drm/panel/panel-s6e8aa0.c
+++ b/drivers/gpu/drm/panel/panel-s6e8aa0.c
@@ -800,27 +800,15 @@ static void s6e8aa0_panel_init(struct s6e8aa0 *ctx)
 }
 
 static void s6e8aa0_set_maximum_return_packet_size(struct s6e8aa0 *ctx,
-                                                  int size)
+                                                  u16 size)
 {
        struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-       const struct mipi_dsi_host_ops *ops = dsi->host->ops;
-       u8 buf[] = {size, 0};
-       struct mipi_dsi_msg msg = {
-               .channel = dsi->channel,
-               .type = MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE,
-               .tx_len = sizeof(buf),
-               .tx_buf = buf
-       };
        int ret;
 
        if (ctx->error < 0)
                return;
 
-       if (!ops || !ops->transfer)
-               ret = -EIO;
-       else
-               ret = ops->transfer(dsi->host, &msg);
-
+       ret = mipi_dsi_set_maximum_return_packet_size(dsi, size);
        if (ret < 0) {
                dev_err(ctx->dev,
                        "error %d setting maximum return packet size to %d\n",