linux-kernel - Re: [PATCH v5 2/2] clk: qcom: Add QDU1000 and QRU1000 GCC support

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Message-ID: <6465d73c-b971-9098-bd6a-7f778914808c@quicinc.com>
Date:   Mon, 19 Dec 2022 16:13:59 -0600
From:   Melody Olvera <quic_molvera@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        "Michael Turquette" <mturquette@...libre.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC:     Taniya Das <quic_tdas@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 2/2] clk: qcom: Add QDU1000 and QRU1000 GCC support



On 12/19/2022 10:25 AM, Dmitry Baryshkov wrote:
> On 17/12/2022 01:07, Melody Olvera wrote:
>> From: Taniya Das <quic_tdas@...cinc.com>
>>
>> Add Global Clock Controller (GCC) support for QDU1000 and QRU1000 SoCs.
>>
>> Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
>> Signed-off-by: Melody Olvera <quic_molvera@...cinc.com>
>> ---
>>   drivers/clk/qcom/Kconfig       |    8 +
>>   drivers/clk/qcom/Makefile      |    1 +
>>   drivers/clk/qcom/gcc-qdu1000.c | 2653 ++++++++++++++++++++++++++++++++
>>   3 files changed, 2662 insertions(+)
>>   create mode 100644 drivers/clk/qcom/gcc-qdu1000.c
>>
>> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
>> index 70d43f0a8919..d2e9ff7536f5 100644
>> --- a/drivers/clk/qcom/Kconfig
>> +++ b/drivers/clk/qcom/Kconfig
>> @@ -569,6 +569,14 @@ config QCS_Q6SSTOP_404
>>         Say Y if you want to use the Q6SSTOP branch clocks of the WCSS clock
>>         controller to reset the Q6SSTOP subsystem.
>>   +config QDU_GCC_1000
>> +    tristate "QDU1000/QRU1000 Global Clock Controller"
>> +    select QCOM_GDSC
>> +    help
>> +      Support for the global clock controller on QDU1000 and
>> +      QRU1000 devices. Say Y if you want to use peripheral
>> +      devices such as UART, SPI, I2C, USB, SD, PCIe, etc.
>> +
>>   config SDM_GCC_845
>>       tristate "SDM845/SDM670 Global Clock Controller"
>>       select QCOM_GDSC
>> diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
>> index f18c446a97ea..c1615c76d3df 100644
>> --- a/drivers/clk/qcom/Makefile
>> +++ b/drivers/clk/qcom/Makefile
>> @@ -62,6 +62,7 @@ obj-$(CONFIG_QCM_DISPCC_2290) += dispcc-qcm2290.o
>>   obj-$(CONFIG_QCS_GCC_404) += gcc-qcs404.o
>>   obj-$(CONFIG_QCS_Q6SSTOP_404) += q6sstop-qcs404.o
>>   obj-$(CONFIG_QCS_TURING_404) += turingcc-qcs404.o
>> +obj-$(CONFIG_QDU_GCC_1000) += gcc-qdu1000.o
>>   obj-$(CONFIG_SC_CAMCC_7180) += camcc-sc7180.o
>>   obj-$(CONFIG_SC_CAMCC_7280) += camcc-sc7280.o
>>   obj-$(CONFIG_SC_DISPCC_7180) += dispcc-sc7180.o
>> diff --git a/drivers/clk/qcom/gcc-qdu1000.c b/drivers/clk/qcom/gcc-qdu1000.c
>> new file mode 100644
>> index 000000000000..144073562f8d
>> --- /dev/null
>> +++ b/drivers/clk/qcom/gcc-qdu1000.c
>> @@ -0,0 +1,2653 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
>> + */
>> +
>> +#include <linux/clk-provider.h>
>> +#include <linux/module.h>
>> +#include <linux/of_device.h>
>> +#include <linux/regmap.h>
>> +
>> +#include <dt-bindings/clock/qcom,qdu1000-gcc.h>
>> +
>> +#include "clk-alpha-pll.h"
>> +#include "clk-branch.h"
>> +#include "clk-rcg.h"
>> +#include "clk-regmap.h"
>> +#include "clk-regmap-divider.h"
>> +#include "clk-regmap-mux.h"
>> +#include "clk-regmap-phy-mux.h"
>> +#include "reset.h"
>> +
>> +enum {
>> +    P_BI_TCXO,
>> +    P_GCC_GPLL0_OUT_EVEN,
>> +    P_GCC_GPLL0_OUT_MAIN,
>> +    P_GCC_GPLL1_OUT_MAIN,
>> +    P_GCC_GPLL2_OUT_MAIN,
>> +    P_GCC_GPLL3_OUT_MAIN,
>> +    P_GCC_GPLL4_OUT_MAIN,
>> +    P_GCC_GPLL5_OUT_MAIN,
>> +    P_GCC_GPLL6_OUT_MAIN,
>> +    P_GCC_GPLL7_OUT_MAIN,
>> +    P_GCC_GPLL8_OUT_MAIN,
>> +    P_PCIE_0_PHY_AUX_CLK,
>> +    P_PCIE_0_PIPE_CLK,
>> +    P_SLEEP_CLK,
>> +    P_USB3_PHY_WRAPPER_GCC_USB30_PIPE_CLK,
>> +};
>> +
>> +enum {
>> +    TCXO_IDX,
>> +    SLEEP_CLK_IDX,
>> +    PCIE_0_PIPE_CLK_IDX,
>> +    PCIE_0_PHY_AUX_CLK_IDX,
>> +    USB3_PHY_WRAPPER_PIPE_CLK_IDX,
>> +};
>
> Please prefix these names with DT_, so that it's clear that they are indices in the device tree.

Will add prefixes here.

Thanks,
Melody

>
> With that fixed:
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>