Re: [PATCH V7 2/7] clk: qcom: Add Global Clock Controller driver for IPQ9574

[Devi Priya <quic_devipriy@quicinc.com>]

Thanks for taking time to review the patch!

On 2/6/2023 7:37 PM, Dmitry Baryshkov wrote:
> On 06/02/2023 12:33, Devi Priya wrote:
>> Add Global Clock Controller (GCC) driver for ipq9574 based devices
>>
>> Co-developed-by: Anusha Rao <quic_anusha@quicinc.com>
>> Signed-off-by: Anusha Rao <quic_anusha@quicinc.com>
>> Signed-off-by: Devi Priya <quic_devipriy@quicinc.com>
>> ---
>>   Changes in V7:
>>     - Used qcom_cc_probe instead of qcom_cc_really_probe in
>>       gcc_ipq9574_probe
>>
>>   drivers/clk/qcom/Kconfig       |    8 +
>>   drivers/clk/qcom/Makefile      |    1 +
>>   drivers/clk/qcom/gcc-ipq9574.c | 4295 ++++++++++++++++++++++++++++++++
>>   3 files changed, 4304 insertions(+)
>>   create mode 100644 drivers/clk/qcom/gcc-ipq9574.c
>>
>> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
>> index 5ab4b7dfe3c2..a9f01d67a500 100644
>> --- a/drivers/clk/qcom/Kconfig
>> +++ b/drivers/clk/qcom/Kconfig
>> @@ -173,6 +173,14 @@ config IPQ_GCC_8074
>>         i2c, USB, SD/eMMC, etc. Select this for the root clock
>>         of ipq8074.
>> +config IPQ_GCC_9574
>> +    tristate "IPQ9574 Global Clock Controller"
>> +    help
>> +      Support for global clock controller on ipq9574 devices.
>> +      Say Y if you want to use peripheral devices such as UART, SPI,
>> +      i2c, USB, SD/eMMC, etc. Select this for the root clock
>> +      of ipq9574.
>> +
>>   config MSM_GCC_8660
>>       tristate "MSM8660 Global Clock Controller"
>>       help
>> diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
>> index 3194465dd02c..51e6e5eb187b 100644
>> --- a/drivers/clk/qcom/Makefile
>> +++ b/drivers/clk/qcom/Makefile
>> @@ -27,6 +27,7 @@ obj-$(CONFIG_IPQ_GCC_4019) += gcc-ipq4019.o
>>   obj-$(CONFIG_IPQ_GCC_6018) += gcc-ipq6018.o
>>   obj-$(CONFIG_IPQ_GCC_806X) += gcc-ipq806x.o
>>   obj-$(CONFIG_IPQ_GCC_8074) += gcc-ipq8074.o
>> +obj-$(CONFIG_IPQ_GCC_9574) += gcc-ipq9574.o
>>   obj-$(CONFIG_IPQ_LCC_806X) += lcc-ipq806x.o
>>   obj-$(CONFIG_MDM_GCC_9607) += gcc-mdm9607.o
>>   obj-$(CONFIG_MDM_GCC_9615) += gcc-mdm9615.o
>> diff --git a/drivers/clk/qcom/gcc-ipq9574.c 
>> b/drivers/clk/qcom/gcc-ipq9574.c
>> new file mode 100644
>> index 000000000000..718106a9ac7b
>> --- /dev/null
>> +++ b/drivers/clk/qcom/gcc-ipq9574.c
> 
> [skipped]
> 
>> +static struct clk_branch gcc_snoc_pcie3_2lane_s_clk = {
>> +    .halt_reg = 0x2e054,
>> +    .clkr = {
>> +        .enable_reg = 0x2e054,
>> +        .enable_mask = BIT(0),
>> +        .hw.init = &(struct clk_init_data) {
>> +            .name = "gcc_snoc_pcie3_2lane_s_clk",
>> +            .parent_hws = (const struct clk_hw *[]) {
>> +                &pcie3_axi_s_clk_src.clkr.hw
>> +            },
>> +            .num_parents = 1,
>> +            .flags = CLK_SET_RATE_PARENT,
>> +            .ops = &clk_branch2_ops,
>> +        },
>> +    },
>> +};
>> +
>> +static struct clk_regmap_mux pcie0_pipe_clk_src = {
>> +    .reg = 0x28064,
>> +    .shift = 8,
>> +    .width = 2,
>> +    .parent_map = gcc_pcie30_phy0_pipe_clk_xo_map,
>> +    .clkr = {
>> +        .hw.init = &(struct clk_init_data) {
>> +            .name = "pcie0_pipe_clk_src",
>> +            .parent_data = gcc_pcie30_phy0_pipe_clk_xo,
>> +            .num_parents = ARRAY_SIZE(gcc_pcie30_phy0_pipe_clk_xo),
>> +            .flags = CLK_SET_RATE_PARENT,
>> +            .ops = &clk_regmap_mux_closest_ops,
> 
> 
> clk_regmap_phy_mux_ops ?
Okay, will update the ops and struct accordingly in the next series
> 
>> +        },
>> +    },
>> +};
>> +
>> +static struct clk_regmap_mux pcie1_pipe_clk_src = {
>> +    .reg = 0x29064,
>> +    .shift = 8,
>> +    .width = 2,
>> +    .parent_map = gcc_pcie30_phy1_pipe_clk_xo_map,
>> +    .clkr = {
>> +        .hw.init = &(struct clk_init_data) {
>> +            .name = "pcie1_pipe_clk_src",
>> +            .parent_data = gcc_pcie30_phy1_pipe_clk_xo,
>> +            .num_parents = ARRAY_SIZE(gcc_pcie30_phy1_pipe_clk_xo),
>> +            .flags = CLK_SET_RATE_PARENT,
>> +            .ops = &clk_regmap_mux_closest_ops,
>> +        },
>> +    },
>> +};
>> +
>> +static struct clk_regmap_mux pcie2_pipe_clk_src = {
>> +    .reg = 0x2a064,
>> +    .shift = 8,
>> +    .width = 2,
>> +    .parent_map = gcc_pcie30_phy2_pipe_clk_xo_map,
>> +    .clkr = {
>> +        .hw.init = &(struct clk_init_data) {
>> +            .name = "pcie2_pipe_clk_src",
>> +            .parent_data = gcc_pcie30_phy2_pipe_clk_xo,
>> +            .num_parents = ARRAY_SIZE(gcc_pcie30_phy2_pipe_clk_xo),
>> +            .flags = CLK_SET_RATE_PARENT,
>> +            .ops = &clk_regmap_mux_closest_ops,
> 
> clk_regmap_phy_mux_ops ?
Okay
> 
> 
>> +        },
>> +    },
>> +};
>> +
>> +static struct clk_regmap_mux pcie3_pipe_clk_src = {
>> +    .reg = 0x2b064,
>> +    .shift = 8,
>> +    .width = 2,
>> +    .parent_map = gcc_pcie30_phy3_pipe_clk_xo_map,
>> +    .clkr = {
>> +        .hw.init = &(struct clk_init_data) {
>> +            .name = "pcie3_pipe_clk_src",
>> +            .parent_data = gcc_pcie30_phy3_pipe_clk_xo,
>> +            .num_parents = ARRAY_SIZE(gcc_pcie30_phy3_pipe_clk_xo),
>> +            .flags = CLK_SET_RATE_PARENT,
>> +            .ops = &clk_regmap_mux_closest_ops,
> 
> clk_regmap_phy_mux_ops ?
Okay
> 
>> +        },
>> +    },
>> +};
> 
Best Regards,
Devi Priya