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linux/drivers/clk/x86/clk-lgm.c
Rahul Tanwar 7256d1f461 clk: mxl: syscon_node_to_regmap() returns error pointers 
Commit 036177310b ("clk: mxl: Switch from direct readl/writel based IO
to regmap based IO") introduced code resulting in below warning issued
by the smatch static checker.

  drivers/clk/x86/clk-lgm.c:441 lgm_cgu_probe() warn: passing zero to 'PTR_ERR'

Fix the warning by replacing incorrect IS_ERR_OR_NULL() with IS_ERR().

Fixes: 036177310b ("clk: mxl: Switch from direct readl/writel based IO to regmap based IO")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Link: https://lore.kernel.org/r/49e339d4739e4ae4c92b00c1b2918af0755d4122.1666695221.git.rtanwar@maxlinear.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-26 17:39:33 -07:00

480 lines
16 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020-2022 MaxLinear, Inc.
* Copyright (C) 2020 Intel Corporation.
* Zhu Yixin <yzhu@maxlinear.com>
* Rahul Tanwar <rtanwar@maxlinear.com>
*/
#include <linux/clk-provider.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/intel,lgm-clk.h>
#include "clk-cgu.h"
#define PLL_DIV_WIDTH 4
#define PLL_DDIV_WIDTH 3
/* Gate0 clock shift */
#define G_C55_SHIFT 7
#define G_QSPI_SHIFT 9
#define G_EIP197_SHIFT 11
#define G_VAULT130_SHIFT 12
#define G_TOE_SHIFT 13
#define G_SDXC_SHIFT 14
#define G_EMMC_SHIFT 15
#define G_SPIDBG_SHIFT 17
#define G_DMA3_SHIFT 28
/* Gate1 clock shift */
#define G_DMA0_SHIFT 0
#define G_LEDC0_SHIFT 1
#define G_LEDC1_SHIFT 2
#define G_I2S0_SHIFT 3
#define G_I2S1_SHIFT 4
#define G_EBU_SHIFT 5
#define G_PWM_SHIFT 6
#define G_I2C0_SHIFT 7
#define G_I2C1_SHIFT 8
#define G_I2C2_SHIFT 9
#define G_I2C3_SHIFT 10
#define G_SSC0_SHIFT 12
#define G_SSC1_SHIFT 13
#define G_SSC2_SHIFT 14
#define G_SSC3_SHIFT 15
#define G_GPTC0_SHIFT 17
#define G_GPTC1_SHIFT 18
#define G_GPTC2_SHIFT 19
#define G_GPTC3_SHIFT 20
#define G_ASC0_SHIFT 22
#define G_ASC1_SHIFT 23
#define G_ASC2_SHIFT 24
#define G_ASC3_SHIFT 25
#define G_PCM0_SHIFT 27
#define G_PCM1_SHIFT 28
#define G_PCM2_SHIFT 29
/* Gate2 clock shift */
#define G_PCIE10_SHIFT 1
#define G_PCIE11_SHIFT 2
#define G_PCIE30_SHIFT 3
#define G_PCIE31_SHIFT 4
#define G_PCIE20_SHIFT 5
#define G_PCIE21_SHIFT 6
#define G_PCIE40_SHIFT 7
#define G_PCIE41_SHIFT 8
#define G_XPCS0_SHIFT 10
#define G_XPCS1_SHIFT 11
#define G_XPCS2_SHIFT 12
#define G_XPCS3_SHIFT 13
#define G_SATA0_SHIFT 14
#define G_SATA1_SHIFT 15
#define G_SATA2_SHIFT 16
#define G_SATA3_SHIFT 17
/* Gate3 clock shift */
#define G_ARCEM4_SHIFT 0
#define G_IDMAR1_SHIFT 2
#define G_IDMAT0_SHIFT 3
#define G_IDMAT1_SHIFT 4
#define G_IDMAT2_SHIFT 5
#define G_PPV4_SHIFT 8
#define G_GSWIPO_SHIFT 9
#define G_CQEM_SHIFT 10
#define G_XPCS5_SHIFT 14
#define G_USB1_SHIFT 25
#define G_USB2_SHIFT 26
/* Register definition */
#define CGU_PLL0CZ_CFG0 0x000
#define CGU_PLL0CM0_CFG0 0x020
#define CGU_PLL0CM1_CFG0 0x040
#define CGU_PLL0B_CFG0 0x060
#define CGU_PLL1_CFG0 0x080
#define CGU_PLL2_CFG0 0x0A0
#define CGU_PLLPP_CFG0 0x0C0
#define CGU_LJPLL3_CFG0 0x0E0
#define CGU_LJPLL4_CFG0 0x100
#define CGU_C55_PCMCR 0x18C
#define CGU_PCMCR 0x190
#define CGU_IF_CLK1 0x1A0
#define CGU_IF_CLK2 0x1A4
#define CGU_GATE0 0x300
#define CGU_GATE1 0x310
#define CGU_GATE2 0x320
#define CGU_GATE3 0x310
#define PLL_DIV(x) ((x) + 0x04)
#define PLL_SSC(x) ((x) + 0x10)
#define CLK_NR_CLKS (LGM_GCLK_USB2 + 1)
/*
* Below table defines the pair's of regval & effective dividers.
* It's more efficient to provide an explicit table due to non-linear
* relation between values.
*/
static const struct clk_div_table pll_div[] = {
{ .val = 0, .div = 1 },
{ .val = 1, .div = 2 },
{ .val = 2, .div = 3 },
{ .val = 3, .div = 4 },
{ .val = 4, .div = 5 },
{ .val = 5, .div = 6 },
{ .val = 6, .div = 8 },
{ .val = 7, .div = 10 },
{ .val = 8, .div = 12 },
{ .val = 9, .div = 16 },
{ .val = 10, .div = 20 },
{ .val = 11, .div = 24 },
{ .val = 12, .div = 32 },
{ .val = 13, .div = 40 },
{ .val = 14, .div = 48 },
{ .val = 15, .div = 64 },
{}
};
static const struct clk_div_table dcl_div[] = {
{ .val = 0, .div = 6 },
{ .val = 1, .div = 12 },
{ .val = 2, .div = 24 },
{ .val = 3, .div = 32 },
{ .val = 4, .div = 48 },
{ .val = 5, .div = 96 },
{}
};
static const struct clk_parent_data pll_p[] = {
{ .fw_name = "osc", .name = "osc" },
};
static const struct clk_parent_data pllcm_p[] = {
{ .fw_name = "cpu_cm", .name = "cpu_cm" },
};
static const struct clk_parent_data emmc_p[] = {
{ .fw_name = "emmc4", .name = "emmc4" },
{ .fw_name = "noc4", .name = "noc4" },
};
static const struct clk_parent_data sdxc_p[] = {
{ .fw_name = "sdxc3", .name = "sdxc3" },
{ .fw_name = "sdxc2", .name = "sdxc2" },
};
static const struct clk_parent_data pcm_p[] = {
{ .fw_name = "v_docsis", .name = "v_docsis" },
{ .fw_name = "dcl", .name = "dcl" },
};
static const struct clk_parent_data cbphy_p[] = {
{ .fw_name = "dd_serdes", .name = "dd_serdes" },
{ .fw_name = "dd_pcie", .name = "dd_pcie" },
};
static const struct lgm_pll_clk_data lgm_pll_clks[] = {
LGM_PLL(LGM_CLK_PLL0CZ, "pll0cz", pll_p, CLK_IGNORE_UNUSED,
CGU_PLL0CZ_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLL0CM0, "pll0cm0", pllcm_p, CLK_IGNORE_UNUSED,
CGU_PLL0CM0_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLL0CM1, "pll0cm1", pllcm_p, CLK_IGNORE_UNUSED,
CGU_PLL0CM1_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLL0B, "pll0b", pll_p, CLK_IGNORE_UNUSED,
CGU_PLL0B_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLL1, "pll1", pll_p, 0, CGU_PLL1_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLL2, "pll2", pll_p, CLK_IGNORE_UNUSED,
CGU_PLL2_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_PLLPP, "pllpp", pll_p, 0, CGU_PLLPP_CFG0, TYPE_ROPLL),
LGM_PLL(LGM_CLK_LJPLL3, "ljpll3", pll_p, 0, CGU_LJPLL3_CFG0, TYPE_LJPLL),
LGM_PLL(LGM_CLK_LJPLL4, "ljpll4", pll_p, 0, CGU_LJPLL4_CFG0, TYPE_LJPLL),
};
static const struct lgm_clk_branch lgm_branch_clks[] = {
LGM_DIV(LGM_CLK_PP_HW, "pp_hw", "pllpp", 0, PLL_DIV(CGU_PLLPP_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_PP_UC, "pp_uc", "pllpp", 0, PLL_DIV(CGU_PLLPP_CFG0),
4, PLL_DIV_WIDTH, 25, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_PP_FXD, "pp_fxd", "pllpp", 0, PLL_DIV(CGU_PLLPP_CFG0),
8, PLL_DIV_WIDTH, 26, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_PP_TBM, "pp_tbm", "pllpp", 0, PLL_DIV(CGU_PLLPP_CFG0),
12, PLL_DIV_WIDTH, 27, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_DDR, "ddr", "pll2", CLK_IGNORE_UNUSED,
PLL_DIV(CGU_PLL2_CFG0), 0, PLL_DIV_WIDTH, 24, 1, 0, 0,
pll_div),
LGM_DIV(LGM_CLK_CM, "cpu_cm", "pll0cz", 0, PLL_DIV(CGU_PLL0CZ_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_IC, "cpu_ic", "pll0cz", CLK_IGNORE_UNUSED,
PLL_DIV(CGU_PLL0CZ_CFG0), 4, PLL_DIV_WIDTH, 25,
1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_SDXC3, "sdxc3", "pll0cz", 0, PLL_DIV(CGU_PLL0CZ_CFG0),
8, PLL_DIV_WIDTH, 26, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_CPU0, "cm0", "pll0cm0",
CLK_IGNORE_UNUSED, PLL_DIV(CGU_PLL0CM0_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_CPU1, "cm1", "pll0cm1",
CLK_IGNORE_UNUSED, PLL_DIV(CGU_PLL0CM1_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
/*
* Marking ngi_clk (next generation interconnect) and noc_clk
* (network on chip peripheral clk) as critical clocks because
* these are shared parent clock sources for many different
* peripherals.
*/
LGM_DIV(LGM_CLK_NGI, "ngi", "pll0b",
(CLK_IGNORE_UNUSED|CLK_IS_CRITICAL), PLL_DIV(CGU_PLL0B_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_NOC4, "noc4", "pll0b",
(CLK_IGNORE_UNUSED|CLK_IS_CRITICAL), PLL_DIV(CGU_PLL0B_CFG0),
4, PLL_DIV_WIDTH, 25, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_SW, "switch", "pll0b", 0, PLL_DIV(CGU_PLL0B_CFG0),
8, PLL_DIV_WIDTH, 26, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_QSPI, "qspi", "pll0b", 0, PLL_DIV(CGU_PLL0B_CFG0),
12, PLL_DIV_WIDTH, 27, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_CT, "v_ct", "pll1", 0, PLL_DIV(CGU_PLL1_CFG0),
0, PLL_DIV_WIDTH, 24, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_DSP, "v_dsp", "pll1", 0, PLL_DIV(CGU_PLL1_CFG0),
8, PLL_DIV_WIDTH, 26, 1, 0, 0, pll_div),
LGM_DIV(LGM_CLK_VIF, "v_ifclk", "pll1", 0, PLL_DIV(CGU_PLL1_CFG0),
12, PLL_DIV_WIDTH, 27, 1, 0, 0, pll_div),
LGM_FIXED_FACTOR(LGM_CLK_EMMC4, "emmc4", "sdxc3", 0, 0,
0, 0, 0, 0, 1, 4),
LGM_FIXED_FACTOR(LGM_CLK_SDXC2, "sdxc2", "noc4", 0, 0,
0, 0, 0, 0, 1, 4),
LGM_MUX(LGM_CLK_EMMC, "emmc", emmc_p, 0, CGU_IF_CLK1,
0, 1, CLK_MUX_ROUND_CLOSEST, 0),
LGM_MUX(LGM_CLK_SDXC, "sdxc", sdxc_p, 0, CGU_IF_CLK1,
1, 1, CLK_MUX_ROUND_CLOSEST, 0),
LGM_FIXED(LGM_CLK_OSC, "osc", NULL, 0, 0, 0, 0, 0, 40000000, 0),
LGM_FIXED(LGM_CLK_SLIC, "slic", NULL, 0, CGU_IF_CLK1,
8, 2, CLOCK_FLAG_VAL_INIT, 8192000, 2),
LGM_FIXED(LGM_CLK_DOCSIS, "v_docsis", NULL, 0, 0, 0, 0, 0, 16000000, 0),
LGM_DIV(LGM_CLK_DCL, "dcl", "v_ifclk", CLK_SET_RATE_PARENT, CGU_PCMCR,
25, 3, 0, 0, DIV_CLK_NO_MASK, 0, dcl_div),
LGM_MUX(LGM_CLK_PCM, "pcm", pcm_p, 0, CGU_C55_PCMCR,
0, 1, CLK_MUX_ROUND_CLOSEST, 0),
LGM_FIXED_FACTOR(LGM_CLK_DDR_PHY, "ddr_phy", "ddr",
CLK_IGNORE_UNUSED, 0,
0, 0, 0, 0, 2, 1),
LGM_FIXED_FACTOR(LGM_CLK_PONDEF, "pondef", "dd_pool",
CLK_SET_RATE_PARENT, 0, 0, 0, 0, 0, 1, 2),
LGM_MUX(LGM_CLK_CBPHY0, "cbphy0", cbphy_p, 0, 0,
0, 0, MUX_CLK_SW | CLK_MUX_ROUND_CLOSEST, 0),
LGM_MUX(LGM_CLK_CBPHY1, "cbphy1", cbphy_p, 0, 0,
0, 0, MUX_CLK_SW | CLK_MUX_ROUND_CLOSEST, 0),
LGM_MUX(LGM_CLK_CBPHY2, "cbphy2", cbphy_p, 0, 0,
0, 0, MUX_CLK_SW | CLK_MUX_ROUND_CLOSEST, 0),
LGM_MUX(LGM_CLK_CBPHY3, "cbphy3", cbphy_p, 0, 0,
0, 0, MUX_CLK_SW | CLK_MUX_ROUND_CLOSEST, 0),
LGM_GATE(LGM_GCLK_C55, "g_c55", NULL, 0, CGU_GATE0,
G_C55_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_QSPI, "g_qspi", "qspi", 0, CGU_GATE0,
G_QSPI_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_EIP197, "g_eip197", NULL, 0, CGU_GATE0,
G_EIP197_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_VAULT, "g_vault130", NULL, 0, CGU_GATE0,
G_VAULT130_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_TOE, "g_toe", NULL, 0, CGU_GATE0,
G_TOE_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SDXC, "g_sdxc", "sdxc", 0, CGU_GATE0,
G_SDXC_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_EMMC, "g_emmc", "emmc", 0, CGU_GATE0,
G_EMMC_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SPI_DBG, "g_spidbg", NULL, 0, CGU_GATE0,
G_SPIDBG_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_DMA3, "g_dma3", NULL, 0, CGU_GATE0,
G_DMA3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_DMA0, "g_dma0", NULL, 0, CGU_GATE1,
G_DMA0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_LEDC0, "g_ledc0", NULL, 0, CGU_GATE1,
G_LEDC0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_LEDC1, "g_ledc1", NULL, 0, CGU_GATE1,
G_LEDC1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2S0, "g_i2s0", NULL, 0, CGU_GATE1,
G_I2S0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2S1, "g_i2s1", NULL, 0, CGU_GATE1,
G_I2S1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_EBU, "g_ebu", NULL, 0, CGU_GATE1,
G_EBU_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PWM, "g_pwm", NULL, 0, CGU_GATE1,
G_PWM_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2C0, "g_i2c0", NULL, 0, CGU_GATE1,
G_I2C0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2C1, "g_i2c1", NULL, 0, CGU_GATE1,
G_I2C1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2C2, "g_i2c2", NULL, 0, CGU_GATE1,
G_I2C2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_I2C3, "g_i2c3", NULL, 0, CGU_GATE1,
G_I2C3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SSC0, "g_ssc0", "noc4", 0, CGU_GATE1,
G_SSC0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SSC1, "g_ssc1", "noc4", 0, CGU_GATE1,
G_SSC1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SSC2, "g_ssc2", "noc4", 0, CGU_GATE1,
G_SSC2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SSC3, "g_ssc3", "noc4", 0, CGU_GATE1,
G_SSC3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_GPTC0, "g_gptc0", "noc4", 0, CGU_GATE1,
G_GPTC0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_GPTC1, "g_gptc1", "noc4", 0, CGU_GATE1,
G_GPTC1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_GPTC2, "g_gptc2", "noc4", 0, CGU_GATE1,
G_GPTC2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_GPTC3, "g_gptc3", "osc", 0, CGU_GATE1,
G_GPTC3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_ASC0, "g_asc0", "noc4", 0, CGU_GATE1,
G_ASC0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_ASC1, "g_asc1", "noc4", 0, CGU_GATE1,
G_ASC1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_ASC2, "g_asc2", "noc4", 0, CGU_GATE1,
G_ASC2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_ASC3, "g_asc3", "osc", 0, CGU_GATE1,
G_ASC3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCM0, "g_pcm0", NULL, 0, CGU_GATE1,
G_PCM0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCM1, "g_pcm1", NULL, 0, CGU_GATE1,
G_PCM1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCM2, "g_pcm2", NULL, 0, CGU_GATE1,
G_PCM2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE10, "g_pcie10", NULL, 0, CGU_GATE2,
G_PCIE10_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE11, "g_pcie11", NULL, 0, CGU_GATE2,
G_PCIE11_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE30, "g_pcie30", NULL, 0, CGU_GATE2,
G_PCIE30_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE31, "g_pcie31", NULL, 0, CGU_GATE2,
G_PCIE31_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE20, "g_pcie20", NULL, 0, CGU_GATE2,
G_PCIE20_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE21, "g_pcie21", NULL, 0, CGU_GATE2,
G_PCIE21_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE40, "g_pcie40", NULL, 0, CGU_GATE2,
G_PCIE40_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PCIE41, "g_pcie41", NULL, 0, CGU_GATE2,
G_PCIE41_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_XPCS0, "g_xpcs0", NULL, 0, CGU_GATE2,
G_XPCS0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_XPCS1, "g_xpcs1", NULL, 0, CGU_GATE2,
G_XPCS1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_XPCS2, "g_xpcs2", NULL, 0, CGU_GATE2,
G_XPCS2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_XPCS3, "g_xpcs3", NULL, 0, CGU_GATE2,
G_XPCS3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SATA0, "g_sata0", NULL, 0, CGU_GATE2,
G_SATA0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SATA1, "g_sata1", NULL, 0, CGU_GATE2,
G_SATA1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SATA2, "g_sata2", NULL, 0, CGU_GATE2,
G_SATA2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_SATA3, "g_sata3", NULL, 0, CGU_GATE2,
G_SATA3_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_ARCEM4, "g_arcem4", NULL, 0, CGU_GATE3,
G_ARCEM4_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_IDMAR1, "g_idmar1", NULL, 0, CGU_GATE3,
G_IDMAR1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_IDMAT0, "g_idmat0", NULL, 0, CGU_GATE3,
G_IDMAT0_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_IDMAT1, "g_idmat1", NULL, 0, CGU_GATE3,
G_IDMAT1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_IDMAT2, "g_idmat2", NULL, 0, CGU_GATE3,
G_IDMAT2_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_PPV4, "g_ppv4", NULL, 0, CGU_GATE3,
G_PPV4_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_GSWIPO, "g_gswipo", "switch", 0, CGU_GATE3,
G_GSWIPO_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_CQEM, "g_cqem", "switch", 0, CGU_GATE3,
G_CQEM_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_XPCS5, "g_xpcs5", NULL, 0, CGU_GATE3,
G_XPCS5_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_USB1, "g_usb1", NULL, 0, CGU_GATE3,
G_USB1_SHIFT, 0, 0),
LGM_GATE(LGM_GCLK_USB2, "g_usb2", NULL, 0, CGU_GATE3,
G_USB2_SHIFT, 0, 0),
};
static const struct lgm_clk_ddiv_data lgm_ddiv_clks[] = {
LGM_DDIV(LGM_CLK_CML, "dd_cml", "ljpll3", 0,
PLL_DIV(CGU_LJPLL3_CFG0), 0, PLL_DDIV_WIDTH,
3, PLL_DDIV_WIDTH, 24, 1, 29, 0),
LGM_DDIV(LGM_CLK_SERDES, "dd_serdes", "ljpll3", 0,
PLL_DIV(CGU_LJPLL3_CFG0), 6, PLL_DDIV_WIDTH,
9, PLL_DDIV_WIDTH, 25, 1, 28, 0),
LGM_DDIV(LGM_CLK_POOL, "dd_pool", "ljpll3", 0,
PLL_DIV(CGU_LJPLL3_CFG0), 12, PLL_DDIV_WIDTH,
15, PLL_DDIV_WIDTH, 26, 1, 28, 0),
LGM_DDIV(LGM_CLK_PTP, "dd_ptp", "ljpll3", 0,
PLL_DIV(CGU_LJPLL3_CFG0), 18, PLL_DDIV_WIDTH,
21, PLL_DDIV_WIDTH, 27, 1, 28, 0),
LGM_DDIV(LGM_CLK_PCIE, "dd_pcie", "ljpll4", 0,
PLL_DIV(CGU_LJPLL4_CFG0), 0, PLL_DDIV_WIDTH,
3, PLL_DDIV_WIDTH, 24, 1, 29, 0),
};
static int lgm_cgu_probe(struct platform_device *pdev)
{
struct lgm_clk_provider *ctx;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
int ret;
ctx = devm_kzalloc(dev, struct_size(ctx, clk_data.hws, CLK_NR_CLKS),
GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ctx->clk_data.num = CLK_NR_CLKS;
ctx->membase = syscon_node_to_regmap(np);
if (IS_ERR(ctx->membase)) {
dev_err(dev, "Failed to get clk CGU iomem\n");
return PTR_ERR(ctx->membase);
}
ctx->np = np;
ctx->dev = dev;
ret = lgm_clk_register_plls(ctx, lgm_pll_clks,
ARRAY_SIZE(lgm_pll_clks));
if (ret)
return ret;
ret = lgm_clk_register_branches(ctx, lgm_branch_clks,
ARRAY_SIZE(lgm_branch_clks));
if (ret)
return ret;
ret = lgm_clk_register_ddiv(ctx, lgm_ddiv_clks,
ARRAY_SIZE(lgm_ddiv_clks));
if (ret)
return ret;
return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
&ctx->clk_data);
}
static const struct of_device_id of_lgm_cgu_match[] = {
{ .compatible = "intel,cgu-lgm" },
{}
};
static struct platform_driver lgm_cgu_driver = {
.probe = lgm_cgu_probe,
.driver = {
.name = "cgu-lgm",
.of_match_table = of_lgm_cgu_match,
},
};
builtin_platform_driver(lgm_cgu_driver);
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