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Commit 85a7db9a authored by Chetan C R's avatar Chetan C R
Browse files

clk: qcom: debugcc: Add debugcc support for QM215 



Add the debug clock controller for measuring the
clocks on QM215.

Change-Id: I4e58c8d7131309a589406dec5c315cb873eadead
Signed-off-by: default avatarChetan C R <cchinnad@codeaurora.org>
parent e57ad68c

drivers/clk/qcom/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -592,3 +592,11 @@ config SDM_GCC_429W 
	  Support for the global clock controller on SDM429w/QM215 devices.

	  Say Y if you want to use peripheral devices such as UART, SPI,

	  I2C, USB, UFS, SDCC, Display, Camera, Video etc.



config SDM_DEBUGCC_429W

	tristate "SDM429W Debug Clock Controller"

	depends on SDM_GCC_429W

	help

	  Support for the debug clock controller on Qualcomm Technologies, Inc

	  SDM429W/QM215 devices.

	  Say Y if you want to support the clock measurement functionality.

drivers/clk/qcom/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ obj-$(CONFIG_QM_GCC_SCUBA) += gcc-scuba.o 
obj-$(CONFIG_QM_GPUCC_SCUBA) += gpucc-scuba.o

obj-$(CONFIG_QM_DEBUGCC_SCUBA) += debugcc-scuba.o

obj-$(CONFIG_SDM_CAMCC_LAGOON) += camcc-lagoon.o

obj-$(CONFIG_SDM_DEBUGCC_429W) += debugcc-sdm429w.o

obj-$(CONFIG_SDM_DEBUGCC_LAGOON) += debugcc-lagoon.o

obj-$(CONFIG_SDM_DISPCC_845) += dispcc-sdm845.o

obj-$(CONFIG_SDM_DISPCC_LAGOON) += dispcc-lagoon.o

drivers/clk/qcom/debugcc-sdm429w.c

0 → 100644
+385 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2021, The Linux Foundation. All rights reserved.

 */



#define pr_fmt(fmt) "clk: %s: " fmt, __func__



#include <linux/clk.h>

#include <linux/clk-provider.h>

#include <linux/err.h>

#include <linux/kernel.h>

#include <linux/mfd/syscon.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>



#include "clk-debug.h"

#include "common.h"



static struct measure_clk_data debug_mux_priv = {

	.ctl_reg = 0x74004,

	.status_reg = 0x74008,

	.xo_div4_cbcr = 0x30034,

};



static const char *const gcc_debug_mux_parent_names[] = {

	"gcc_ahb_clk",

	"gcc_apss_ahb_clk",

	"gcc_apss_axi_clk",

	"gcc_bimc_gfx_clk",

	"gcc_bimc_gpu_clk",

	"gcc_blsp1_ahb_clk",

	"gcc_blsp1_qup2_i2c_apps_clk",

	"gcc_blsp1_qup2_spi_apps_clk",

	"gcc_blsp1_qup3_i2c_apps_clk",

	"gcc_blsp1_qup3_spi_apps_clk",

	"gcc_blsp1_qup4_i2c_apps_clk",

	"gcc_blsp1_qup4_spi_apps_clk",

	"gcc_blsp1_sleep_clk",

	"gcc_blsp1_uart1_apps_clk",

	"gcc_blsp1_uart1_sim_clk",

	"gcc_blsp1_uart2_apps_clk",

	"gcc_blsp1_uart2_sim_clk",

	"gcc_blsp2_ahb_clk",

	"gcc_blsp2_qup1_i2c_apps_clk",

	"gcc_blsp2_qup1_spi_apps_clk",

	"gcc_blsp2_qup2_i2c_apps_clk",

	"gcc_blsp2_qup2_spi_apps_clk",

	"gcc_blsp2_qup3_i2c_apps_clk",

	"gcc_blsp2_qup3_spi_apps_clk",

	"gcc_blsp2_sleep_clk",

	"gcc_blsp2_uart1_apps_clk",

	"gcc_blsp2_uart1_sim_clk",

	"gcc_blsp2_uart2_apps_clk",

	"gcc_blsp2_uart2_sim_clk",

	"gcc_boot_rom_ahb_clk",

	"gcc_camss_ahb_clk",

	"gcc_camss_cci_ahb_clk",

	"gcc_camss_cci_clk",

	"gcc_camss_cpp_ahb_clk",

	"gcc_camss_cpp_axi_clk",

	"gcc_camss_cpp_clk",

	"gcc_camss_csi0_ahb_clk",

	"gcc_camss_csi0_clk",

	"gcc_camss_csi0phy_clk",

	"gcc_camss_csi0phytimer_clk",

	"gcc_camss_csi0pix_clk",

	"gcc_camss_csi0rdi_clk",

	"gcc_camss_csi1_ahb_clk",

	"gcc_camss_csi1_clk",

	"gcc_camss_csi1phy_clk",

	"gcc_camss_csi1phytimer_clk",

	"gcc_camss_csi1pix_clk",

	"gcc_camss_csi1rdi_clk",

	"gcc_camss_csi2_ahb_clk",

	"gcc_camss_csi2_clk",

	"gcc_camss_csi2phy_clk",

	"gcc_camss_csi2pix_clk",

	"gcc_camss_csi2rdi_clk",

	"gcc_camss_csi_vfe0_clk",

	"gcc_camss_csi_vfe1_clk",

	"gcc_camss_gp0_clk",

	"gcc_camss_gp1_clk",

	"gcc_camss_ispif_ahb_clk",

	"gcc_camss_jpeg0_clk",

	"gcc_camss_jpeg_ahb_clk",

	"gcc_camss_jpeg_axi_clk",

	"gcc_camss_mclk0_clk",

	"gcc_camss_mclk1_clk",

	"gcc_camss_mclk2_clk",

	"gcc_camss_micro_ahb_clk",

	"gcc_camss_top_ahb_clk",

	"gcc_camss_vfe0_clk",

	"gcc_camss_vfe1_ahb_clk",

	"gcc_camss_vfe1_axi_clk",

	"gcc_camss_vfe1_clk",

	"gcc_camss_vfe_ahb_clk",

	"gcc_camss_vfe_axi_clk",

	"gcc_crypto_ahb_clk",

	"gcc_crypto_axi_clk",

	"gcc_crypto_clk",

	"gcc_gp1_clk",

	"gcc_gp2_clk",

	"gcc_gp3_clk",

	"gcc_im_sleep_clk",

	"gcc_lpass_mport_axi_clk",

	"gcc_lpass_q6_axi_clk",

	"gcc_lpass_sway_clk",

	"gcc_mdss_ahb_clk",

	"gcc_mdss_axi_clk",

	"gcc_mdss_byte0_clk",

	"gcc_mdss_esc0_clk",

	"gcc_mdss_mdp_clk",

	"gcc_mdss_pclk0_clk",

	"gcc_mdss_vsync_clk",

	"gcc_mpm_ahb_clk",

	"gcc_msg_ram_ahb_clk",

	"gcc_oxili_ahb_clk",

	"gcc_oxili_aon_clk",

	"gcc_oxili_gfx3d_clk",

	"gcc_pcnoc_mpu_cfg_ahb_clk",

	"gcc_pdm2_clk",

	"gcc_pdm_ahb_clk",

	"gcc_pdm_xo4_clk",

	"gcc_prng_ahb_clk",

	"gcc_q6_mpu_cfg_ahb_clk",

	"gcc_rpm_cfg_xpu_clk",

	"gcc_sdcc1_ahb_clk",

	"gcc_sdcc1_apps_clk",

	"gcc_sdcc1_ice_core_clk",

	"gcc_sdcc2_ahb_clk",

	"gcc_sdcc2_apps_clk",

	"gcc_sec_ctrl_acc_clk",

	"gcc_sec_ctrl_ahb_clk",

	"gcc_sec_ctrl_boot_rom_patch_clk",

	"gcc_sec_ctrl_clk",

	"gcc_sec_ctrl_sense_clk",

	"gcc_tcsr_ahb_clk",

	"gcc_tlmm_ahb_clk",

	"gcc_tlmm_clk",

	"gcc_usb2a_phy_sleep_clk",

	"gcc_usb_hs_ahb_clk",

	"gcc_usb_hs_inactivity_timers_clk",

	"gcc_usb_hs_phy_cfg_ahb_clk",

	"gcc_usb_hs_system_clk",

	"gcc_venus0_ahb_clk",

	"gcc_venus0_axi_clk",

	"gcc_venus0_core0_vcodec0_clk",

	"gcc_venus0_vcodec0_clk",

	"gcc_xo_clk",

	"gcc_xo_div4_clk",

	"gcc_gfx_tbu_clk",

	"gcc_gfx_tcu_clk",

	"gcc_gtcu_ahb_clk",

	"gcc_bimc_clk",

	"gcc_smmu_cfg_clk",

};



static int gcc_debug_mux_sels[] = {

	0x148,		/* gcc_ahb_clk */

	0x168,		/* gcc_apss_ahb_clk */

	0x169,		/* gcc_apss_axi_clk */

	0x2D,		/* gcc_bimc_gfx_clk */

	0x157,		/* gcc_bimc_gpu_clk */

	0x88,		/* gcc_blsp1_ahb_clk */

	0x90,		/* gcc_blsp1_qup2_i2c_apps_clk */

	0x8E,		/* gcc_blsp1_qup2_spi_apps_clk */

	0x94,		/* gcc_blsp1_qup3_i2c_apps_clk */

	0x93,		/* gcc_blsp1_qup3_spi_apps_clk */

	0x96,		/* gcc_blsp1_qup4_i2c_apps_clk */

	0x95,		/* gcc_blsp1_qup4_spi_apps_clk */

	0x89,		/* gcc_blsp1_sleep_clk */

	0x8C,		/* gcc_blsp1_uart1_apps_clk */

	0x8D,		/* gcc_blsp1_uart1_sim_clk */

	0x91,		/* gcc_blsp1_uart2_apps_clk */

	0x92,		/* gcc_blsp1_uart2_sim_clk */

	0x98,		/* gcc_blsp2_ahb_clk */

	0x9B,		/* gcc_blsp2_qup1_i2c_apps_clk */

	0x9A,		/* gcc_blsp2_qup1_spi_apps_clk */

	0xA0,		/* gcc_blsp2_qup2_i2c_apps_clk */

	0x9E,		/* gcc_blsp2_qup2_spi_apps_clk */

	0xA4,		/* gcc_blsp2_qup3_i2c_apps_clk */

	0xA3,		/* gcc_blsp2_qup3_spi_apps_clk */

	0x99,		/* gcc_blsp2_sleep_clk */

	0x9C,		/* gcc_blsp2_uart1_apps_clk */

	0x9D,		/* gcc_blsp2_uart1_sim_clk */

	0x9A,		/* gcc_blsp2_uart2_apps_clk */

	0xA2,		/* gcc_blsp2_uart2_sim_clk */

	0xF8,		/* gcc_boot_rom_ahb_clk */

	0xA8,		/* gcc_camss_ahb_clk */

	0xB0,		/* gcc_camss_cci_ahb_clk */

	0xAF,		/* gcc_camss_cci_clk */

	0xBA,		/* gcc_camss_cpp_ahb_clk */

	0x1A3,		/* gcc_camss_cpp_axi_clk */

	0xB9,		/* gcc_camss_cpp_clk */

	0xC1,		/* gcc_camss_csi0_ahb_clk */

	0xC0,		/* gcc_camss_csi0_clk */

	0xC2,		/* gcc_camss_csi0phy_clk */

	0xB1,		/* gcc_camss_csi0phytimer_clk */

	0xC4,		/* gcc_camss_csi0pix_clk */

	0xC3,		/* gcc_camss_csi0rdi_clk */

	0xC6,		/* gcc_camss_csi1_ahb_clk */

	0xC5,		/* gcc_camss_csi1_clk */

	0xC7,		/* gcc_camss_csi1phy_clk */

	0xB2,		/* gcc_camss_csi1phytimer_clk */

	0xE1,		/* gcc_camss_csi1pix_clk */

	0xE0,		/* gcc_camss_csi1rdi_clk */

	0xE4,		/* gcc_camss_csi2_ahb_clk */

	0xE3,		/* gcc_camss_csi2_clk */

	0xE5,		/* gcc_camss_csi2phy_clk */

	0xE7,		/* gcc_camss_csi2pix_clk */

	0xE6,		/* gcc_camss_csi2rdi_clk */

	0xBF,		/* gcc_camss_csi_vfe0_clk */

	0x1A0,		/* gcc_camss_csi_vfe1_clk */

	0xAB,		/* gcc_camss_gp0_clk */

	0xAC,		/* gcc_camss_gp1_clk */

	0xE2,		/* gcc_camss_ispif_ahb_clk */

	0xB3,		/* gcc_camss_jpeg0_clk */

	0xB4,		/* gcc_camss_jpeg_ahb_clk */

	0xB5,		/* gcc_camss_jpeg_axi_clk */

	0xAD,		/* gcc_camss_mclk0_clk */

	0xAE,		/* gcc_camss_mclk1_clk */

	0x1BD,		/* gcc_camss_mclk2_clk */

	0xAA,		/* gcc_camss_micro_ahb_clk */

	0xA9,		/* gcc_camss_top_ahb_clk */

	0xB8,		/* gcc_camss_vfe0_clk */

	0x1A2,		/* gcc_camss_vfe1_ahb_clk */

	0x1A4,		/* gcc_camss_vfe1_axi_clk */

	0x1A1,		/* gcc_camss_vfe1_clk */

	0xBB,		/* gcc_camss_vfe_ahb_clk */

	0xBC,		/* gcc_camss_vfe_axi_clk */

	0x13A,		/* gcc_crypto_ahb_clk */

	0x139,		/* gcc_crypto_axi_clk */

	0x138,		/* gcc_crypto_clk */

	0x10,		/* gcc_gp1_clk */

	0x11,		/* gcc_gp2_clk */

	0x12,		/* gcc_gp3_clk */

	0x14B,		/* gcc_im_sleep_clk */

	0x162,		/* gcc_lpass_mport_axi_clk */

	0x160,		/* gcc_lpass_q6_axi_clk */

	0x163,		/* gcc_lpass_sway_clk */

	0x1F6,		/* gcc_mdss_ahb_clk */

	0x1F7,		/* gcc_mdss_axi_clk */

	0x1FC,		/* gcc_mdss_byte0_clk */

	0x1FD,		/* gcc_mdss_esc0_clk */

	0x1F9,		/* gcc_mdss_mdp_clk */

	0x1F8,		/* gcc_mdss_pclk0_clk */

	0x1FB,		/* gcc_mdss_vsync_clk */

	0x110,		/* gcc_mpm_ahb_clk */

	0x100,		/* gcc_msg_ram_ahb_clk */

	0x1EB,		/* gcc_oxili_ahb_clk */

	0xEE,		/* gcc_oxili_aon_clk */

	0x1EA,		/* gcc_oxili_gfx3d_clk */

	0xC9,		/* gcc_pcnoc_mpu_cfg_ahb_clk */

	0xD2,		/* gcc_pdm2_clk */

	0xD0,		/* gcc_pdm_ahb_clk */

	0xD1,		/* gcc_pdm_xo4_clk */

	0xD8,		/* gcc_prng_ahb_clk */

	0xC8,		/* gcc_q6_mpu_cfg_ahb_clk */

	0x38,		/* gcc_rpm_cfg_xpu_clk */

	0x69,		/* gcc_sdcc1_ahb_clk */

	0x68,		/* gcc_sdcc1_apps_clk */

	0x6A,		/* gcc_sdcc1_ice_core_clk */

	0x71,		/* gcc_sdcc2_ahb_clk */

	0x70,		/* gcc_sdcc2_apps_clk */

	0x120,		/* gcc_sec_ctrl_acc_clk */

	0x121,		/* gcc_sec_ctrl_ahb_clk */

	0x124,		/* gcc_sec_ctrl_boot_rom_patch_clk */

	0x122,		/* gcc_sec_ctrl_clk */

	0x123,		/* gcc_sec_ctrl_sense_clk */

	0xE8,		/* gcc_tcsr_ahb_clk */

	0x108,		/* gcc_tlmm_ahb_clk */

	0x109,		/* gcc_tlmm_clk */

	0x63,		/* gcc_usb2a_phy_sleep_clk */

	0x61,		/* gcc_usb_hs_ahb_clk */

	0x62,		/* gcc_usb_hs_inactivity_timers_clk */

	0x64,		/* gcc_usb_hs_phy_cfg_ahb_clk */

	0x60,		/* gcc_usb_hs_system_clk */

	0x1F3,		/* gcc_venus0_ahb_clk */

	0x1F2,		/* gcc_venus0_axi_clk */

	0x1B8,		/* gcc_venus0_core0_vcodec0_clk */

	0x1F1,		/* gcc_venus0_vcodec0_clk */

	0x149,		/* gcc_xo_clk */

	0x14A,		/* gcc_xo_div4_clk */

	0x52,		/* gcc_gfx_tbu_clk */

	0x53,		/* gcc_gfx_tcu_clk */

	0x58,		/* gcc_gtcu_ahb_clk */

	0x15A,		/* gcc_bimc_clk */

	0x5B,		/* gcc_smmu_cfg_clk */

};



static struct clk_debug_mux gcc_debug_mux = {

	.priv = &debug_mux_priv,

	.en_mask = BIT(16),

	.debug_offset = 0x74000,

	.post_div_offset = 0x74000,

	.cbcr_offset = 0x74000,

	.src_sel_mask = 0x1FF,

	.src_sel_shift = 0,

	.post_div_mask = 0xF000,

	.post_div_shift = 12,

	.post_div_val = 1,

	.mux_sels = gcc_debug_mux_sels,

	.hw.init = &(struct clk_init_data){

		.name = "gcc_debug_mux",

		.ops = &clk_debug_mux_ops,

		.parent_names = gcc_debug_mux_parent_names,

		.num_parents = ARRAY_SIZE(gcc_debug_mux_parent_names),

		.flags = CLK_IS_MEASURE,

	},

};



static struct mux_regmap_names mux_list[] = {

	{ .mux = &gcc_debug_mux, .regmap_name = "qcom,gcc" },

};



static const struct of_device_id clk_debug_match_table[] = {

	{ .compatible = "qcom,sdm429w-debugcc" },

	{ .compatible = "qcom,qm215-debugcc" },

	{ }

};



static int clk_debug_sdm429w_probe(struct platform_device *pdev)

{

	struct clk *clk;

	int ret, i;



	BUILD_BUG_ON(ARRAY_SIZE(gcc_debug_mux_parent_names) !=

		ARRAY_SIZE(gcc_debug_mux_sels));



	clk = devm_clk_get(&pdev->dev, "xo_clk_src");

	if (IS_ERR(clk)) {

		if (PTR_ERR(clk) != -EPROBE_DEFER)

			dev_err(&pdev->dev, "Unable to get xo clock\n");

		return PTR_ERR(clk);

	}



	debug_mux_priv.cxo = clk;



	for (i = 0; i < ARRAY_SIZE(mux_list); i++) {

		ret = map_debug_bases(pdev, mux_list[i].regmap_name,

				      mux_list[i].mux);

		if (ret == -EBADR)

			continue;

		else if (ret)

			return ret;



		clk = devm_clk_register(&pdev->dev, &mux_list[i].mux->hw);

		if (IS_ERR(clk)) {

			dev_err(&pdev->dev, "Unable to register %s, err:(%d)\n",

				clk_hw_get_name(&mux_list[i].mux->hw),

				PTR_ERR(clk));

			return PTR_ERR(clk);

		}

	}



	ret = clk_debug_measure_register(&gcc_debug_mux.hw);

	if (ret) {

		dev_err(&pdev->dev, "Could not register Measure clocks\n");

		return ret;

	}



	dev_info(&pdev->dev, "Registered debug measure clocks\n");



	return ret;

}



static struct platform_driver clk_debug_driver = {

	.probe = clk_debug_sdm429w_probe,

	.driver = {

		.name = "sdm429w-debugcc",

		.of_match_table = clk_debug_match_table,

	},

};



static int __init clk_debug_sdm429w_init(void)

{

	return platform_driver_register(&clk_debug_driver);

}

fs_initcall(clk_debug_sdm429w_init);



MODULE_DESCRIPTION("QTI DEBUG CC SDM429W Driver");

MODULE_LICENSE("GPL v2");