From: Ondrej Jirman megi@xff.cz
pllref_clk is unused after being retrieved. fin needs to be set to dsi->ref clock's rate for the following calculation to work. Otherwise fin is undefined, and calculation return bogus number based on undefined variable.
Signed-off-by: Ondrej Jirman megi@xff.cz --- drivers/video/rockchip/dw_mipi_dsi_rockchip.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c index 5e8db6bd2e63..6d8b1e6f541a 100644 --- a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c +++ b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c @@ -505,7 +505,6 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, struct display_timing *timings, unsigned int _prediv, best_prediv; unsigned long _fbdiv, best_fbdiv; unsigned long min_delta = ULONG_MAX; - unsigned int pllref_clk;
bpp = mipi_dsi_pixel_format_to_bpp(format); if (bpp < 0) { @@ -537,7 +536,7 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, struct display_timing *timings, return 0; }
- pllref_clk = clk_get_rate(dsi->ref); + fin = clk_get_rate(dsi->ref); fout = target_mbps * USEC_PER_SEC;
/* constraint: 5Mhz <= Fref / N <= 40MHz */