[PATCH -next] drm/bridge: cdns: Remove set but not used variable 'bpp'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/bridge/cdns-dsi.c: In function 'cdns_dsi_bridge_enable':
drivers/gpu/drm/bridge/cdns-dsi.c:986:6: warning:
 variable 'bpp' set but not used [-Wunused-but-set-variable]

It never used since introduction.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/gpu/drm/bridge/cdns-dsi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cdns-dsi.c 
b/drivers/gpu/drm/bridge/cdns-dsi.c
index 6166dca6be81..07ee1685fdfe 100644
--- a/drivers/gpu/drm/bridge/cdns-dsi.c
+++ b/drivers/gpu/drm/bridge/cdns-dsi.c
@@ -785,13 +785,12 @@ static void cdns_dsi_bridge_enable(struct drm_bridge 
*bridge)
        unsigned long tx_byte_period;
        struct cdns_dsi_cfg dsi_cfg;
        u32 tmp, reg_wakeup, div;
-       int bpp, nlanes;
+       int nlanes;
 
        if (WARN_ON(pm_runtime_get_sync(dsi->base.dev) < 0))
                return;
 
        mode = &bridge->encoder->crtc->state->adjusted_mode;
-       bpp = mipi_dsi_pixel_format_to_bpp(output->dev->format);
        nlanes = output->dev->lanes;
 
        WARN_ON_ONCE(cdns_dsi_check_conf(dsi, mode, &dsi_cfg, false));