linux-kernel - Re: [PATCH v2 2/2] interconnect: qcom: Add MSM8953 driver

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Message-ID: <88588f06-66e1-47a9-b5ab-7849b1c53fb0@kernel.org>
Date: Fri, 28 Jun 2024 12:32:17 +0300
From: Georgi Djakov <djakov@...nel.org>
To: Barnabás Czémán <barnabas.czeman@...nlining.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
 devicetree@...r.kernel.org, Vladimir Lypak <vladimir.lypak@...il.com>
Subject: Re: [PATCH v2 2/2] interconnect: qcom: Add MSM8953 driver

On 27.06.24 18:08, Barnabás Czémán wrote:
> From: Vladimir Lypak <vladimir.lypak@...il.com>
> 
> Add driver for interconnect busses found in MSM8953 based platforms.
> The topology consists of four NoCs that are partially controlled by a
> RPM processor.
> 
> Note that one of NoCs (System NoC) has a counterpart (System NoC MM)
> that is modelled as child device to avoid resource conflicts, since it
> uses same MMIO space for configuration.
> 
> Signed-off-by: Vladimir Lypak <vladimir.lypak@...il.com>
> Signed-off-by: Barnabás Czémán <barnabas.czeman@...nlining.org>
> ---
>   drivers/interconnect/qcom/Kconfig   |    9 +
>   drivers/interconnect/qcom/Makefile  |    2 +
>   drivers/interconnect/qcom/msm8953.c | 1325 +++++++++++++++++++++++++++++++++++
>   3 files changed, 1336 insertions(+)
> 
[..]
> +
> +static struct qcom_icc_node * const msm8953_pcnoc_nodes[] = {
> +	[MAS_SPDM] = &mas_spdm,
> +	[MAS_BLSP_1] = &mas_blsp_1,
> +	[MAS_BLSP_2] = &mas_blsp_2,
> +	[MAS_USB3] = &mas_usb3,
> +	[MAS_CRYPTO] = &mas_crypto,
> +	[MAS_SDCC_1] = &mas_sdcc_1,
> +	[MAS_SDCC_2] = &mas_sdcc_2,
> +	[MAS_SNOC_PCNOC] = &mas_snoc_pcnoc,
> +	[PCNOC_M_0] = &pcnoc_m_0,
> +	[PCNOC_M_1] = &pcnoc_m_1,
> +	[PCNOC_INT_1] = &pcnoc_int_1,
> +	[PCNOC_INT_2] = &pcnoc_int_2,
> +	[PCNOC_S_0] = &pcnoc_s_0,
> +	[PCNOC_S_1] = &pcnoc_s_1,
> +	[PCNOC_S_2] = &pcnoc_s_2,
> +	[PCNOC_S_3] = &pcnoc_s_3,
> +	[PCNOC_S_4] = &pcnoc_s_4,
> +	[PCNOC_S_6] = &pcnoc_s_6,
> +	[PCNOC_S_7] = &pcnoc_s_7,
> +	[PCNOC_S_8] = &pcnoc_s_8,
> +	[PCNOC_S_9] = &pcnoc_s_9,
> +	[SLV_SPDM] = &slv_spdm,
> +	[SLV_PDM] = &slv_pdm,
> +	[SLV_TCSR] = &slv_tcsr,
> +	[SLV_SNOC_CFG] = &slv_snoc_cfg,
> +	[SLV_TLMM] = &slv_tlmm,
> +	[SLV_MESSAGE_RAM] = &slv_message_ram,
> +	[SLV_BLSP_1] = &slv_blsp_1,
> +	[SLV_BLSP_2] = &slv_blsp_2,
> +	[SLV_PRNG] = &slv_prng,
> +	[SLV_CAMERA_SS_CFG] = &slv_camera_ss_cfg,
> +	[SLV_DISP_SS_CFG] = &slv_disp_ss_cfg,
> +	[SLV_VENUS_CFG] = &slv_venus_cfg,
> +	[SLV_GPU_CFG] = &slv_gpu_cfg,
> +	[SLV_SDCC_1] = &slv_sdcc_1,
> +	[SLV_SDCC_2] = &slv_sdcc_2,
> +	[SLV_CRYPTO_0_CFG] = &slv_crypto_0_cfg,
> +	[SLV_PMIC_ARB] = &slv_pmic_arb,
> +	[SLV_USB3] = &slv_usb3,
> +	[SLV_IPA_CFG] = &slv_ipa_cfg,
> +	[SLV_TCU] = &slv_tcu,
> +	[SLV_PCNOC_SNOC] = &slv_pcnoc_snoc,
> +};
> +
> +static const char * const msm8953_pcnoc_bus_clocks[] = {
> +	"bus", "bus_a"
> +};

This seems to be unused?

BR,
Georgi

> +
> +static const char * const msm8953_pcnoc_intf_clocks[] = {
> +	"pcnoc_usb3_axi"
> +};
> +
> +static const struct regmap_config msm8953_pcnoc_regmap_config = {
> +	.fast_io = true,
> +	.max_register = 0x12080,
> +	.reg_bits = 32,
> +	.reg_stride = 4,
> +	.val_bits = 32,
> +};
> +
> +static const struct qcom_icc_desc msm8953_pcnoc = {
> +	.type = QCOM_ICC_NOC,
> +	.bus_clk_desc = &bus_0_clk,
> +	.intf_clocks = msm8953_pcnoc_intf_clocks,
> +	.num_intf_clocks = ARRAY_SIZE(msm8953_pcnoc_intf_clocks),
> +	.nodes = msm8953_pcnoc_nodes,
> +	.num_nodes = ARRAY_SIZE(msm8953_pcnoc_nodes),
> +	.qos_offset = 0x7000,
> +	.regmap_cfg = &msm8953_pcnoc_regmap_config,
> +};