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Date:   Mon, 8 Oct 2018 11:58:52 +0530
From:   Taniya Das <tdas@...eaurora.org>
To:     Vinod <vkoul@...nel.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Shefali Jain <shefjain@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Anu Ramanathan <anur@...eaurora.org>,
        "open list:COMMON CLK FRAMEWORK" <linux-clk@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>
Subject: Re: [PATCH 2/2] clk: qcom: gcc: Add global clock controller driver
 for QCS404



On 10/7/2018 7:01 PM, Vinod wrote:
> Hi Taniya,
> 
> Thanks for the review, It would be great if you can strip the irrelevant
> context while replying, makes it easier for people to follow.
> 
> On 06-10-18, 23:28, Taniya Das wrote:
> 
>>> +static struct clk_rcg2 pclk0_clk_src = {
>>> +	.cmd_rcgr = 0x4d000,
>>> +	.mnd_width = 8,
>>> +	.hid_width = 5,
>>> +	.parent_map = gcc_parent_map_12,
>>> +	.clkr.hw.init = &(struct clk_init_data){
>>> +		.name = "pclk0_clk_src",
>>> +		.parent_names = gcc_parent_names_12,
>>> +		.num_parents = 4,
>>> +		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
>>
>> Please remove the NOCACHE flag for all display RCGs as there are no real
>> requirement.
> 
> Thanks for the suggestion, will do
> 
>>> +++ b/include/dt-bindings/clock/qcom,gcc-qcs404.h
>>> @@ -0,0 +1,166 @@
>>> +/* SPDX-License-Identifier: GPL-2.0 */
>>> +/*
>>> + * Copyright (c) 2018, The Linux Foundation. All rights reserved.
>>> + */
>>> +
>>> +#ifndef _DT_BINDINGS_CLK_QCOM_GCC_QCS404_H
>>> +#define _DT_BINDINGS_CLK_QCOM_GCC_QCS404_H
>>> +
>>> +#define APSS_AHB_CLK_SRC				0
>>> +#define BLSP1_QUP0_I2C_APPS_CLK_SRC			1
>>> +#define BLSP1_QUP0_SPI_APPS_CLK_SRC			2
>>> +#define BLSP1_QUP1_I2C_APPS_CLK_SRC			3
>>> +#define BLSP1_QUP1_SPI_APPS_CLK_SRC			4
>>> +#define BLSP1_QUP2_I2C_APPS_CLK_SRC			5
>>> +#define BLSP1_QUP2_SPI_APPS_CLK_SRC			6
>>> +#define BLSP1_QUP3_I2C_APPS_CLK_SRC			7
>>> +#define BLSP1_QUP3_SPI_APPS_CLK_SRC			8
>>> +#define BLSP1_QUP4_I2C_APPS_CLK_SRC			9
>>> +#define BLSP1_QUP4_SPI_APPS_CLK_SRC			10
>>> +#define BLSP1_UART0_APPS_CLK_SRC			11
>>> +#define BLSP1_UART1_APPS_CLK_SRC			12
>>> +#define BLSP1_UART2_APPS_CLK_SRC			13
>>> +#define BLSP1_UART3_APPS_CLK_SRC			14
>>> +#define BLSP2_QUP0_I2C_APPS_CLK_SRC			15
>>> +#define BLSP2_QUP0_SPI_APPS_CLK_SRC			16
>>> +#define BLSP2_UART0_APPS_CLK_SRC			17
>>> +#define BYTE0_CLK_SRC					18
>>> +#define EMAC_CLK_SRC					19
>>> +#define EMAC_PTP_CLK_SRC				20
>>> +#define ESC0_CLK_SRC					21
>>> +#define GCC_APSS_AHB_CLK				22
>>> +#define GCC_APSS_AXI_CLK				23
>>> +#define GCC_BIMC_APSS_AXI_CLK				24
>>> +#define GCC_BIMC_GFX_CLK				25
>>> +#define GCC_BIMC_MDSS_CLK				26
>>> +#define GCC_BLSP1_AHB_CLK				27
>>> +#define GCC_BLSP1_QUP0_I2C_APPS_CLK			28
>>> +#define GCC_BLSP1_QUP0_SPI_APPS_CLK			29
>>> +#define GCC_BLSP1_QUP1_I2C_APPS_CLK			30
>>> +#define GCC_BLSP1_QUP1_SPI_APPS_CLK			31
>>> +#define GCC_BLSP1_QUP2_I2C_APPS_CLK			32
>>> +#define GCC_BLSP1_QUP2_SPI_APPS_CLK			33
>>> +#define GCC_BLSP1_QUP3_I2C_APPS_CLK			34
>>> +#define GCC_BLSP1_QUP3_SPI_APPS_CLK			35
>>> +#define GCC_BLSP1_QUP4_I2C_APPS_CLK			36
>>> +#define GCC_BLSP1_QUP4_SPI_APPS_CLK			37
>>> +#define GCC_BLSP1_UART0_APPS_CLK			38
>>> +#define GCC_BLSP1_UART1_APPS_CLK			39
>>> +#define GCC_BLSP1_UART2_APPS_CLK			40
>>> +#define GCC_BLSP1_UART3_APPS_CLK			41
>>> +#define GCC_BLSP2_AHB_CLK				42
>>> +#define GCC_BLSP2_QUP0_I2C_APPS_CLK			43
>>> +#define GCC_BLSP2_QUP0_SPI_APPS_CLK			44
>>> +#define GCC_BLSP2_UART0_APPS_CLK			45
>>> +#define GCC_BOOT_ROM_AHB_CLK				46
>>> +#define GCC_DCC_CLK					47
>>> +#define GCC_GENI_IR_H_CLK				48
>>> +#define GCC_ETH_AXI_CLK					49
>>> +#define GCC_ETH_PTP_CLK					50
>>> +#define GCC_ETH_RGMII_CLK				51
>>> +#define GCC_ETH_SLAVE_AHB_CLK				52
>>> +#define GCC_GENI_IR_S_CLK				53
>>> +#define GCC_GP1_CLK					54
>>> +#define GCC_GP2_CLK					55
>>> +#define GCC_GP3_CLK					56
>>> +#define GCC_MDSS_AHB_CLK				57
>>> +#define GCC_MDSS_AXI_CLK				58
>>> +#define GCC_MDSS_BYTE0_CLK				59
>>> +#define GCC_MDSS_ESC0_CLK				60
>>> +#define GCC_MDSS_HDMI_APP_CLK				61
>>> +#define GCC_MDSS_HDMI_PCLK_CLK				62
>>> +#define GCC_MDSS_MDP_CLK				63
>>> +#define GCC_MDSS_PCLK0_CLK				64
>>> +#define GCC_MDSS_VSYNC_CLK				65
>>> +#define GCC_OXILI_AHB_CLK				66
>>> +#define GCC_OXILI_GFX3D_CLK				67
>>> +#define GCC_PCIE_0_AUX_CLK				68
>>> +#define GCC_PCIE_0_CFG_AHB_CLK				69
>>> +#define GCC_PCIE_0_MSTR_AXI_CLK				70
>>> +#define GCC_PCIE_0_PIPE_CLK				71
>>> +#define GCC_PCIE_0_SLV_AXI_CLK				72
>>> +#define GCC_PCNOC_USB2_CLK				73
>>> +#define GCC_PCNOC_USB3_CLK				74
>>> +#define GCC_PDM2_CLK					75
>>> +#define GCC_PDM_AHB_CLK					76
>>> +#define VSYNC_CLK_SRC					77
>>> +#define GCC_PRNG_AHB_CLK				78
>>> +#define GCC_PWM0_XO512_CLK				79
>>> +#define GCC_PWM1_XO512_CLK				80
>>> +#define GCC_PWM2_XO512_CLK				81
>>> +#define GCC_SDCC1_AHB_CLK				82
>>> +#define GCC_SDCC1_APPS_CLK				83
>>> +#define GCC_SDCC1_ICE_CORE_CLK				84
>>> +#define GCC_SDCC2_AHB_CLK				85
>>> +#define GCC_SDCC2_APPS_CLK				86
>>> +#define GCC_SYS_NOC_USB3_CLK				87
>>> +#define GCC_USB20_MOCK_UTMI_CLK				88
>>> +#define GCC_USB2A_PHY_SLEEP_CLK				89
>>> +#define GCC_USB30_MASTER_CLK				90
>>> +#define GCC_USB30_MOCK_UTMI_CLK				91
>>> +#define GCC_USB30_SLEEP_CLK				92
>>> +#define GCC_USB3_PHY_AUX_CLK				93
>>> +#define GCC_USB3_PHY_PIPE_CLK				94
>>> +#define GCC_USB_HS_PHY_CFG_AHB_CLK			95
>>> +#define GCC_USB_HS_SYSTEM_CLK				96
>>> +#define GFX3D_CLK_SRC					97
>>> +#define GP1_CLK_SRC					98
>>> +#define GP2_CLK_SRC					99
>>> +#define GP3_CLK_SRC					100
>>> +#define GPLL0_OUT_MAIN					101
>>> +#define GPLL1_OUT_MAIN					102
>>> +#define GPLL3_OUT_MAIN					103
>>> +#define GPLL4_OUT_MAIN					104
>>> +#define HDMI_APP_CLK_SRC				105
>>> +#define HDMI_PCLK_CLK_SRC				106
>>> +#define MDP_CLK_SRC					107
>>> +#define PCIE_0_AUX_CLK_SRC				108
>>> +#define PCIE_0_PIPE_CLK_SRC				109
>>> +#define PCLK0_CLK_SRC					110
>>> +#define PDM2_CLK_SRC					111
>>> +#define SDCC1_APPS_CLK_SRC				112
>>> +#define SDCC1_ICE_CORE_CLK_SRC				113
>>> +#define SDCC2_APPS_CLK_SRC				114
>>> +#define USB20_MOCK_UTMI_CLK_SRC				115
>>> +#define USB30_MASTER_CLK_SRC				116
>>> +#define USB30_MOCK_UTMI_CLK_SRC				117
>>> +#define USB3_PHY_AUX_CLK_SRC				118
>>> +#define USB_HS_SYSTEM_CLK_SRC				119
>>> +#define GPLL0_AO_CLK_SRC				120
>>> +#define WCNSS_M_CLK					121
>>
>> Please remove WCNSS_M_CLK.
> 
> And the reason for that?
> 

This is a dummy/fixed clock and not a real clock used by clients.

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.

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