// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 NXP
* Dong Aisheng < aisheng . dong @ nxp . com >
*/
#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include "clk-scu.h"
#include "clk-imx8qxp-lpcg.h"
#include <dt-bindings/clock/imx8-clock.h>
/*
* struct imx8qxp_lpcg_data - Description of one LPCG clock
* @ id : clock ID
* @ name : clock name
* @ parent : parent clock name
* @ flags : common clock flags
* @ offset : offset of this LPCG clock
* @ bit_idx : bit index of this LPCG clock
* @ hw_gate : whether supports HW autogate
*
* This structure describes one LPCG clock
*/
struct imx8qxp_lpcg_data {
int id;
char *name;
char *parent;
unsigned long flags;
u32 offset;
u8 bit_idx;
bool hw_gate;
};
/*
* struct imx8qxp_ss_lpcg - Description of one subsystem LPCG clocks
* @ lpcg : LPCG clocks array of one subsystem
* @ num_lpcg : the number of LPCG clocks
* @ num_max : the maximum number of LPCG clocks
*
* This structure describes each subsystem LPCG clocks information
* which then will be used to create respective LPCGs clocks
*/
struct imx8qxp_ss_lpcg {
const struct imx8qxp_lpcg_data *lpcg;
u8 num_lpcg;
u8 num_max;
};
static const struct imx8qxp_lpcg_data imx8qxp_lpcg_adma[] = {
{ IMX_ADMA_LPCG_UART0_IPG_CLK, "uart0_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPUART_0_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_UART0_BAUD_CLK, "uart0_lpcg_baud_clk" , "uart0_clk" , 0 , ADMA_LPUART_0_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_UART1_IPG_CLK, "uart1_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPUART_1_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_UART1_BAUD_CLK, "uart1_lpcg_baud_clk" , "uart1_clk" , 0 , ADMA_LPUART_1_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_UART2_IPG_CLK, "uart2_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPUART_2_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_UART2_BAUD_CLK, "uart2_lpcg_baud_clk" , "uart2_clk" , 0 , ADMA_LPUART_2_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_UART3_IPG_CLK, "uart3_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPUART_3_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_UART3_BAUD_CLK, "uart3_lpcg_baud_clk" , "uart3_clk" , 0 , ADMA_LPUART_3_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_I2C0_IPG_CLK, "i2c0_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPI2C_0_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_I2C0_CLK, "i2c0_lpcg_clk" , "i2c0_clk" , 0 , ADMA_LPI2C_0_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_I2C1_IPG_CLK, "i2c1_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPI2C_1_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_I2C1_CLK, "i2c1_lpcg_clk" , "i2c1_clk" , 0 , ADMA_LPI2C_1_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_I2C2_IPG_CLK, "i2c2_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPI2C_2_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_I2C2_CLK, "i2c2_lpcg_clk" , "i2c2_clk" , 0 , ADMA_LPI2C_2_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_I2C3_IPG_CLK, "i2c3_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_LPI2C_3_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_I2C3_CLK, "i2c3_lpcg_clk" , "i2c3_clk" , 0 , ADMA_LPI2C_3_LPCG, 0 , 0 , },
{ IMX_ADMA_LPCG_DSP_CORE_CLK, "dsp_lpcg_core_clk" , "dma_ipg_clk_root" , 0 , ADMA_HIFI_LPCG, 28 , 0 , },
{ IMX_ADMA_LPCG_DSP_IPG_CLK, "dsp_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_HIFI_LPCG, 20 , 0 , },
{ IMX_ADMA_LPCG_DSP_ADB_CLK, "dsp_lpcg_adb_clk" , "dma_ipg_clk_root" , 0 , ADMA_HIFI_LPCG, 16 , 0 , },
{ IMX_ADMA_LPCG_OCRAM_IPG_CLK, "ocram_lpcg_ipg_clk" , "dma_ipg_clk_root" , 0 , ADMA_OCRAM_LPCG, 16 , 0 , },
};
static const struct imx8qxp_ss_lpcg imx8qxp_ss_adma = {
.lpcg = imx8qxp_lpcg_adma,
.num_lpcg = ARRAY_SIZE(imx8qxp_lpcg_adma),
.num_max = IMX_ADMA_LPCG_CLK_END,
};
static const struct imx8qxp_lpcg_data imx8qxp_lpcg_conn[] = {
{ IMX_CONN_LPCG_SDHC0_PER_CLK, "sdhc0_lpcg_per_clk" , "sdhc0_clk" , 0 , CONN_USDHC_0_LPCG, 0 , 0 , },
{ IMX_CONN_LPCG_SDHC0_IPG_CLK, "sdhc0_lpcg_ipg_clk" , "conn_ipg_clk_root" , 0 , CONN_USDHC_0_LPCG, 16 , 0 , },
{ IMX_CONN_LPCG_SDHC0_HCLK, "sdhc0_lpcg_ahb_clk" , "conn_axi_clk_root" , 0 , CONN_USDHC_0_LPCG, 20 , 0 , },
{ IMX_CONN_LPCG_SDHC1_PER_CLK, "sdhc1_lpcg_per_clk" , "sdhc1_clk" , 0 , CONN_USDHC_1_LPCG, 0 , 0 , },
{ IMX_CONN_LPCG_SDHC1_IPG_CLK, "sdhc1_lpcg_ipg_clk" , "conn_ipg_clk_root" , 0 , CONN_USDHC_1_LPCG, 16 , 0 , },
{ IMX_CONN_LPCG_SDHC1_HCLK, "sdhc1_lpcg_ahb_clk" , "conn_axi_clk_root" , 0 , CONN_USDHC_1_LPCG, 20 , 0 , },
{ IMX_CONN_LPCG_SDHC2_PER_CLK, "sdhc2_lpcg_per_clk" , "sdhc2_clk" , 0 , CONN_USDHC_2_LPCG, 0 , 0 , },
{ IMX_CONN_LPCG_SDHC2_IPG_CLK, "sdhc2_lpcg_ipg_clk" , "conn_ipg_clk_root" , 0 , CONN_USDHC_2_LPCG, 16 , 0 , },
{ IMX_CONN_LPCG_SDHC2_HCLK, "sdhc2_lpcg_ahb_clk" , "conn_axi_clk_root" , 0 , CONN_USDHC_2_LPCG, 20 , 0 , },
{ IMX_CONN_LPCG_ENET0_ROOT_CLK, "enet0_ipg_root_clk" , "enet0_clk" , 0 , CONN_ENET_0_LPCG, 0 , 0 , },
{ IMX_CONN_LPCG_ENET0_TX_CLK, "enet0_tx_clk" , "enet0_clk" , 0 , CONN_ENET_0_LPCG, 4 , 0 , },
{ IMX_CONN_LPCG_ENET0_AHB_CLK, "enet0_ahb_clk" , "conn_axi_clk_root" , 0 , CONN_ENET_0_LPCG, 8 , 0 , },
{ IMX_CONN_LPCG_ENET0_IPG_S_CLK, "enet0_ipg_s_clk" , "conn_ipg_clk_root" , 0 , CONN_ENET_0_LPCG, 20 , 0 , },
{ IMX_CONN_LPCG_ENET0_IPG_CLK, "enet0_ipg_clk" , "enet0_ipg_s_clk" , 0 , CONN_ENET_0_LPCG, 16 , 0 , },
{ IMX_CONN_LPCG_ENET1_ROOT_CLK, "enet1_ipg_root_clk" , "enet1_clk" , 0 , CONN_ENET_1_LPCG, 0 , 0 , },
{ IMX_CONN_LPCG_ENET1_TX_CLK, "enet1_tx_clk" , "enet1_clk" , 0 , CONN_ENET_1_LPCG, 4 , 0 , },
{ IMX_CONN_LPCG_ENET1_AHB_CLK, "enet1_ahb_clk" , "conn_axi_clk_root" , 0 , CONN_ENET_1_LPCG, 8 , 0 , },
{ IMX_CONN_LPCG_ENET1_IPG_S_CLK, "enet1_ipg_s_clk" , "conn_ipg_clk_root" , 0 , CONN_ENET_1_LPCG, 20 , 0 , },
{ IMX_CONN_LPCG_ENET1_IPG_CLK, "enet1_ipg_clk" , "enet0_ipg_s_clk" , 0 , CONN_ENET_1_LPCG, 16 , 0 , },
};
static const struct imx8qxp_ss_lpcg imx8qxp_ss_conn = {
.lpcg = imx8qxp_lpcg_conn,
.num_lpcg = ARRAY_SIZE(imx8qxp_lpcg_conn),
.num_max = IMX_CONN_LPCG_CLK_END,
};
static const struct imx8qxp_lpcg_data imx8qxp_lpcg_lsio[] = {
{ IMX_LSIO_LPCG_PWM0_IPG_CLK, "pwm0_lpcg_ipg_clk" , "pwm0_clk" , 0 , LSIO_PWM_0_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM0_IPG_HF_CLK, "pwm0_lpcg_ipg_hf_clk" , "pwm0_clk" , 0 , LSIO_PWM_0_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM0_IPG_S_CLK, "pwm0_lpcg_ipg_s_clk" , "pwm0_clk" , 0 , LSIO_PWM_0_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM0_IPG_SLV_CLK, "pwm0_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_0_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM0_IPG_MSTR_CLK, "pwm0_lpcg_ipg_mstr_clk" , "pwm0_clk" , 0 , LSIO_PWM_0_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM1_IPG_CLK, "pwm1_lpcg_ipg_clk" , "pwm1_clk" , 0 , LSIO_PWM_1_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM1_IPG_HF_CLK, "pwm1_lpcg_ipg_hf_clk" , "pwm1_clk" , 0 , LSIO_PWM_1_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM1_IPG_S_CLK, "pwm1_lpcg_ipg_s_clk" , "pwm1_clk" , 0 , LSIO_PWM_1_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM1_IPG_SLV_CLK, "pwm1_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_1_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM1_IPG_MSTR_CLK, "pwm1_lpcg_ipg_mstr_clk" , "pwm1_clk" , 0 , LSIO_PWM_1_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM2_IPG_CLK, "pwm2_lpcg_ipg_clk" , "pwm2_clk" , 0 , LSIO_PWM_2_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM2_IPG_HF_CLK, "pwm2_lpcg_ipg_hf_clk" , "pwm2_clk" , 0 , LSIO_PWM_2_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM2_IPG_S_CLK, "pwm2_lpcg_ipg_s_clk" , "pwm2_clk" , 0 , LSIO_PWM_2_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM2_IPG_SLV_CLK, "pwm2_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_2_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM2_IPG_MSTR_CLK, "pwm2_lpcg_ipg_mstr_clk" , "pwm2_clk" , 0 , LSIO_PWM_2_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM3_IPG_CLK, "pwm3_lpcg_ipg_clk" , "pwm3_clk" , 0 , LSIO_PWM_3_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM3_IPG_HF_CLK, "pwm3_lpcg_ipg_hf_clk" , "pwm3_clk" , 0 , LSIO_PWM_3_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM3_IPG_S_CLK, "pwm3_lpcg_ipg_s_clk" , "pwm3_clk" , 0 , LSIO_PWM_3_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM3_IPG_SLV_CLK, "pwm3_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_3_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM3_IPG_MSTR_CLK, "pwm3_lpcg_ipg_mstr_clk" , "pwm3_clk" , 0 , LSIO_PWM_3_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM4_IPG_CLK, "pwm4_lpcg_ipg_clk" , "pwm4_clk" , 0 , LSIO_PWM_4_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM4_IPG_HF_CLK, "pwm4_lpcg_ipg_hf_clk" , "pwm4_clk" , 0 , LSIO_PWM_4_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM4_IPG_S_CLK, "pwm4_lpcg_ipg_s_clk" , "pwm4_clk" , 0 , LSIO_PWM_4_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM4_IPG_SLV_CLK, "pwm4_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_4_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM4_IPG_MSTR_CLK, "pwm4_lpcg_ipg_mstr_clk" , "pwm4_clk" , 0 , LSIO_PWM_4_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM5_IPG_CLK, "pwm5_lpcg_ipg_clk" , "pwm5_clk" , 0 , LSIO_PWM_5_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM5_IPG_HF_CLK, "pwm5_lpcg_ipg_hf_clk" , "pwm5_clk" , 0 , LSIO_PWM_5_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM5_IPG_S_CLK, "pwm5_lpcg_ipg_s_clk" , "pwm5_clk" , 0 , LSIO_PWM_5_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM5_IPG_SLV_CLK, "pwm5_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_5_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM5_IPG_MSTR_CLK, "pwm5_lpcg_ipg_mstr_clk" , "pwm5_clk" , 0 , LSIO_PWM_5_LPCG, 24 , 0 , },
{ IMX_LSIO_LPCG_PWM6_IPG_CLK, "pwm6_lpcg_ipg_clk" , "pwm6_clk" , 0 , LSIO_PWM_6_LPCG, 0 , 0 , },
{ IMX_LSIO_LPCG_PWM6_IPG_HF_CLK, "pwm6_lpcg_ipg_hf_clk" , "pwm6_clk" , 0 , LSIO_PWM_6_LPCG, 4 , 0 , },
{ IMX_LSIO_LPCG_PWM6_IPG_S_CLK, "pwm6_lpcg_ipg_s_clk" , "pwm6_clk" , 0 , LSIO_PWM_6_LPCG, 16 , 0 , },
{ IMX_LSIO_LPCG_PWM6_IPG_SLV_CLK, "pwm6_lpcg_ipg_slv_clk" , "lsio_bus_clk_root" , 0 , LSIO_PWM_6_LPCG, 20 , 0 , },
{ IMX_LSIO_LPCG_PWM6_IPG_MSTR_CLK, "pwm6_lpcg_ipg_mstr_clk" , "pwm6_clk" , 0 , LSIO_PWM_6_LPCG, 24 , 0 , },
};
static const struct imx8qxp_ss_lpcg imx8qxp_ss_lsio = {
.lpcg = imx8qxp_lpcg_lsio,
.num_lpcg = ARRAY_SIZE(imx8qxp_lpcg_lsio),
.num_max = IMX_LSIO_LPCG_CLK_END,
};
#define IMX_LPCG_MAX_CLKS 8
static struct clk_hw *imx_lpcg_of_clk_src_get(struct of_phandle_args *clkspec,
void *data)
{
struct clk_hw_onecell_data *hw_data = data;
unsigned int idx = clkspec->args[0 ] / 4 ;
if (idx >= hw_data->num) {
pr_err("%s: invalid index %u\n" , __func__, idx);
return ERR_PTR(-EINVAL);
}
return hw_data->hws[idx];
}
static int imx_lpcg_parse_clks_from_dt(struct platform_device *pdev,
struct device_node *np)
{
const char *output_names[IMX_LPCG_MAX_CLKS];
const char *parent_names[IMX_LPCG_MAX_CLKS];
unsigned int bit_offset[IMX_LPCG_MAX_CLKS];
struct clk_hw_onecell_data *clk_data;
struct clk_hw **clk_hws;
void __iomem *base;
int count;
int idx;
int ret;
int i;
if (!of_device_is_compatible(np, "fsl,imx8qxp-lpcg" ))
return -EINVAL;
base = devm_platform_ioremap_resource(pdev, 0 );
if (IS_ERR(base))
return PTR_ERR(base);
count = of_property_count_u32_elems(np, "clock-indices" );
if (count < 0 ) {
dev_err(&pdev->dev, "failed to count clocks\n" );
return -EINVAL;
}
/*
* A trick here is that we set the num of clks to the MAX instead
* of the count from clock - indices because one LPCG supports up to
* 8 clock outputs which each of them is fixed to 4 bits . Then we can
* easily get the clock by clk - indices ( bit - offset ) / 4 .
* And the cost is very limited few pointers .
*/
clk_data = devm_kzalloc(&pdev->dev, struct_size(clk_data, hws,
IMX_LPCG_MAX_CLKS), GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = IMX_LPCG_MAX_CLKS;
clk_hws = clk_data->hws;
ret = of_property_read_u32_array(np, "clock-indices" , bit_offset,
count);
if (ret < 0 ) {
dev_err(&pdev->dev, "failed to read clock-indices\n" );
return -EINVAL;
}
ret = of_clk_parent_fill(np, parent_names, count);
if (ret != count) {
dev_err(&pdev->dev, "failed to get clock parent names\n" );
return count;
}
ret = of_property_read_string_array(np, "clock-output-names" ,
output_names, count);
if (ret != count) {
dev_err(&pdev->dev, "failed to read clock-output-names\n" );
return -EINVAL;
}
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, 500 );
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_enable(&pdev->dev);
for (i = 0 ; i < count; i++) {
idx = bit_offset[i] / 4 ;
if (idx >= IMX_LPCG_MAX_CLKS) {
dev_warn(&pdev->dev, "invalid bit offset of clock %d\n" ,
i);
ret = -EINVAL;
goto unreg;
}
clk_hws[idx] = imx_clk_lpcg_scu_dev(&pdev->dev, output_names[i],
parent_names[i], 0 , base,
bit_offset[i], false );
if (IS_ERR(clk_hws[idx])) {
dev_warn(&pdev->dev, "failed to register clock %d\n" ,
idx);
ret = PTR_ERR(clk_hws[idx]);
goto unreg;
}
}
ret = devm_of_clk_add_hw_provider(&pdev->dev, imx_lpcg_of_clk_src_get,
clk_data);
if (ret)
goto unreg;
pm_runtime_put_autosuspend(&pdev->dev);
return 0 ;
unreg:
while (--i >= 0 ) {
idx = bit_offset[i] / 4 ;
if (clk_hws[idx])
imx_clk_lpcg_scu_unregister(clk_hws[idx]);
}
pm_runtime_disable(&pdev->dev);
return ret;
}
static int imx8qxp_lpcg_clk_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct clk_hw_onecell_data *clk_data;
const struct imx8qxp_ss_lpcg *ss_lpcg;
const struct imx8qxp_lpcg_data *lpcg;
struct resource *res;
struct clk_hw **clks;
void __iomem *base;
int ret;
int i;
/* try new binding to parse clocks from device tree first */
ret = imx_lpcg_parse_clks_from_dt(pdev, np);
if (!ret)
return 0 ;
ss_lpcg = of_device_get_match_data(dev);
if (!ss_lpcg)
return -ENODEV;
/*
* Please don ' t replace this with devm_platform_ioremap_resource .
*
* devm_platform_ioremap_resource calls devm_ioremap_resource which
* differs from devm_ioremap by also calling devm_request_mem_region
* and preventing other mappings in the same area .
*
* On imx8 the LPCG nodes map entire subsystems and overlap
* peripherals , this means that using devm_platform_ioremap_resource
* will cause many devices to fail to probe including serial ports .
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 0 );
if (!res)
return -EINVAL;
base = devm_ioremap(dev, res->start, resource_size(res));
if (!base)
return -ENOMEM;
clk_data = devm_kzalloc(&pdev->dev, struct_size(clk_data, hws,
ss_lpcg->num_max), GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->num = ss_lpcg->num_max;
clks = clk_data->hws;
for (i = 0 ; i < ss_lpcg->num_lpcg; i++) {
lpcg = ss_lpcg->lpcg + i;
clks[lpcg->id] = imx_clk_lpcg_scu(lpcg->name, lpcg->parent,
lpcg->flags, base + lpcg->offset,
lpcg->bit_idx, lpcg->hw_gate);
}
for (i = 0 ; i < clk_data->num; i++) {
if (IS_ERR(clks[i]))
pr_warn("i.MX clk %u: register failed with %ld\n" ,
i, PTR_ERR(clks[i]));
}
return of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
}
static const struct of_device_id imx8qxp_lpcg_match[] = {
{ .compatible = "fsl,imx8qxp-lpcg-adma" , &imx8qxp_ss_adma, },
{ .compatible = "fsl,imx8qxp-lpcg-conn" , &imx8qxp_ss_conn, },
{ .compatible = "fsl,imx8qxp-lpcg-lsio" , &imx8qxp_ss_lsio, },
{ .compatible = "fsl,imx8qxp-lpcg" , NULL },
{ /* sentinel */ }
};
static struct platform_driver imx8qxp_lpcg_clk_driver = {
.driver = {
.name = "imx8qxp-lpcg-clk" ,
.of_match_table = imx8qxp_lpcg_match,
.pm = &imx_clk_lpcg_scu_pm_ops,
.suppress_bind_attrs = true ,
},
.probe = imx8qxp_lpcg_clk_probe,
};
module_platform_driver(imx8qxp_lpcg_clk_driver);
MODULE_AUTHOR("Aisheng Dong <aisheng.dong@nxp.com>" );
MODULE_DESCRIPTION("NXP i.MX8QXP LPCG clock driver" );
MODULE_LICENSE("GPL v2" );
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-09-27)
¤
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