clk: qcom: dispcc-x1e80100: Fix (possibly) dumping regmap

Reading few registers at the end of the block (e.g. 0x10000, 0x10004)
might result in synchronous external abort, so limit the regmap to the
last readable register which allows dumping the regs for debugging.

Reported-by: Daniel J Blueman <daniel@quora.org>
Closes: https://lore.kernel.org/r/CAMVG2su+V5fcZ9LOC0Qm3bpfnhpbmQdJackc7-RvfztDL_dajw@mail.gmail.com/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Daniel J Blueman <daniel@quora.org>
Link: https://lore.kernel.org/r/20260505152908.302097-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/drivers/clk/qcom/dispcc-x1e80100.c b/drivers/clk/qcom/dispcc-x1e80100.c
index aa7fd43969f9c8f762e0b96e764572dc34863054..575ba90d20707cfaed94a1dedc27644e01098916 100644 (file)
--- a/drivers/clk/qcom/dispcc-x1e80100.c
+++ b/drivers/clk/qcom/dispcc-x1e80100.c
@@ -1634,7 +1634,7 @@ static const struct regmap_config disp_cc_x1e80100_regmap_config = {
        .reg_bits = 32,
        .reg_stride = 4,
        .val_bits = 32,
-       .max_register = 0x11008,
+       .max_register = 0xf004, /* 0x10000, 0x10004 and maybe others are for TZ */
        .fast_io = true,
 };