From: Gabor Juhos <j4g8y7@xxxxxxxxx> [ Upstream commit f982adcc1b1c02a3114f68ac73c811cbfabe90fa ] The value of the 'enable_reg' field in the 'gcc_gmac0_sys_clk' clock definition seems wrong as it is greater than the 'max_register' value defined in the regmap configuration. Additionally, all other gmac specific branch clock definitions within the driver uses the same value both for the 'enable_reg' and for the 'halt_reg' fields. Due to the lack of documentation the correct value is not known. Looking into the downstream driver does not help either, as that uses the same (presumably wrong) value [1]. Nevertheless, change the 'enable_reg' field of 'gcc_gmac0_sys_clk' to use the value from the 'halt_reg' field so it follows the pattern used in other gmac clock definitions. The change is based on the assumption that the register layout of this clock is the same as the other gmac clocks. 1. https://git.codelinaro.org/clo/qsdk/oss/kernel/linux-ipq-5.4/-/blob/NHSS.QSDK.12.4.r4/drivers/clk/qcom/gcc-ipq5018.c?ref_type=heads#L1889 Fixes: e3fdbef1bab8 ("clk: qcom: Add Global Clock controller (GCC) driver for IPQ5018") Signed-off-by: Gabor Juhos <j4g8y7@xxxxxxxxx> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Reviewed-by: Kathiravan Thirumoorthy <quic_kathirav@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20240225-gcc-ipq5018-register-fixes-v1-1-3c191404d9f0@xxxxxxxxx Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/clk/qcom/gcc-ipq5018.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/qcom/gcc-ipq5018.c b/drivers/clk/qcom/gcc-ipq5018.c index 2a3c0659b7008..72484a44a8219 100644 --- a/drivers/clk/qcom/gcc-ipq5018.c +++ b/drivers/clk/qcom/gcc-ipq5018.c @@ -1753,7 +1753,7 @@ static struct clk_branch gcc_gmac0_sys_clk = { .halt_check = BRANCH_HALT_DELAY, .halt_bit = 31, .clkr = { - .enable_reg = 0x683190, + .enable_reg = 0x68190, .enable_mask = BIT(0), .hw.init = &(struct clk_init_data) { .name = "gcc_gmac0_sys_clk", -- 2.43.0
