Files
linux/drivers
Konrad Dybcio e892f4e3f3 clk: qcom: dispcc-kaanapali: Fix DSI byte clock rate setting
The clock tree for byte_clk_src is as follows:

   ┌──────byte0_clk_src─────┐
   │                        │
byte0_clk            byte0_div_clk_src
                            │
                     byte0_intf_clk

If both of its direct children have CLK_SET_RATE_PARENT with different
requests, byte0_clk_src (and its parent) will be reconfigured. In this
case, byte0_intf should strictly follow the rate of byte0_clk (with
some adjustments based on PHY mode).

Remove CLK_SET_RATE_PARENT from byte0_div_clk_src to avoid this issue.

Fixes: 6c6750b706 ("clk: qcom: dispcc: Add support for display clock controller Kaanapali")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260304-topic-dsi_byte_fixup-v1-2-b79b29f83176@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2026-03-04 10:24:53 -06:00
..