To guarantee that we do not get Overflow in image FIFO the outer bandwidth has to be faster than inputer bandwidth. For that it must be possible to set a faster frequency clock. So set new parent to sys_pfd3 clock for the mipi csi block. Cc: linux-clk@xxxxxxxxxxxxxxx Acked-by: Shawn Guo <shawnguo@xxxxxxxxxx> Signed-off-by: Rui Miguel Silva <rui.silva@xxxxxxxxxx> --- drivers/clk/imx/clk-imx7d.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c index f7f4db2e6fa6..27877d05faa2 100644 --- a/drivers/clk/imx/clk-imx7d.c +++ b/drivers/clk/imx/clk-imx7d.c @@ -891,6 +891,8 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node) clk_set_parent(clks[IMX7D_PLL_AUDIO_MAIN_BYPASS], clks[IMX7D_PLL_AUDIO_MAIN]); clk_set_parent(clks[IMX7D_PLL_VIDEO_MAIN_BYPASS], clks[IMX7D_PLL_VIDEO_MAIN]); + clk_set_parent(clks[IMX7D_MIPI_CSI_ROOT_SRC], clks[IMX7D_PLL_SYS_PFD3_CLK]); + /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */ clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]); -- 2.17.0
