On 20.12.2024 10:03 AM, Luca Weiss wrote:
> If a clk_rcg2 has a parent, it should also have parent_map defined,
> otherwise we'll get a NULL pointer dereference when calling clk_set_rate
> like the following:
>
> [ 3.388105] Call trace:
> [ 3.390664] qcom_find_src_index+0x3c/0x70 (P)
> [ 3.395301] qcom_find_src_index+0x1c/0x70 (L)
> [ 3.399934] _freq_tbl_determine_rate+0x48/0x100
> [ 3.404753] clk_rcg2_determine_rate+0x1c/0x28
> [ 3.409387] clk_core_determine_round_nolock+0x58/0xe4
> [ 3.421414] clk_core_round_rate_nolock+0x48/0xfc
> [ 3.432974] clk_core_round_rate_nolock+0xd0/0xfc
> [ 3.444483] clk_core_set_rate_nolock+0x8c/0x300
> [ 3.455886] clk_set_rate+0x38/0x14c
>
> Add the parent_map property for the clock where it's missing and also
> un-inline the parent_data as well to keep the matching parent_map and
> parent_data together.
>
> Fixes: 837519775f1d ("clk: qcom: Add display clock controller driver for
> SM6350")
> Cc: <sta...@vger.kernel.org>
> Signed-off-by: Luca Weiss <luca.we...@fairphone.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dyb...@oss.qualcomm.com>
Konrad
