a96cbb146a
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> # samsung Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # versaclock5 Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143156.1066339-1-robh@kernel.org Acked-by: Abel Vesa <abel.vesa@linaro.org> #imx Signed-off-by: Stephen Boyd <sboyd@kernel.org>
170 lines
6.2 KiB
C
170 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* StarFive JH7100 Audio Clock Driver
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*
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* Copyright (C) 2021 Emil Renner Berthing <kernel@esmil.dk>
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*/
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#include <linux/bits.h>
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#include <linux/clk-provider.h>
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <dt-bindings/clock/starfive-jh7100-audio.h>
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#include "clk-starfive-jh71x0.h"
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/* external clocks */
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#define JH7100_AUDCLK_AUDIO_SRC (JH7100_AUDCLK_END + 0)
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#define JH7100_AUDCLK_AUDIO_12288 (JH7100_AUDCLK_END + 1)
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#define JH7100_AUDCLK_DOM7AHB_BUS (JH7100_AUDCLK_END + 2)
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#define JH7100_AUDCLK_I2SADC_BCLK_IOPAD (JH7100_AUDCLK_END + 3)
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#define JH7100_AUDCLK_I2SADC_LRCLK_IOPAD (JH7100_AUDCLK_END + 4)
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#define JH7100_AUDCLK_I2SDAC_BCLK_IOPAD (JH7100_AUDCLK_END + 5)
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#define JH7100_AUDCLK_I2SDAC_LRCLK_IOPAD (JH7100_AUDCLK_END + 6)
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#define JH7100_AUDCLK_VAD_INTMEM (JH7100_AUDCLK_END + 7)
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static const struct jh71x0_clk_data jh7100_audclk_data[] = {
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JH71X0__GMD(JH7100_AUDCLK_ADC_MCLK, "adc_mclk", 0, 15, 2,
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JH7100_AUDCLK_AUDIO_SRC,
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JH7100_AUDCLK_AUDIO_12288),
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JH71X0__GMD(JH7100_AUDCLK_I2S1_MCLK, "i2s1_mclk", 0, 15, 2,
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JH7100_AUDCLK_AUDIO_SRC,
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JH7100_AUDCLK_AUDIO_12288),
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JH71X0_GATE(JH7100_AUDCLK_I2SADC_APB, "i2sadc_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0_MDIV(JH7100_AUDCLK_I2SADC_BCLK, "i2sadc_bclk", 31, 2,
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JH7100_AUDCLK_ADC_MCLK,
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JH7100_AUDCLK_I2SADC_BCLK_IOPAD),
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JH71X0__INV(JH7100_AUDCLK_I2SADC_BCLK_N, "i2sadc_bclk_n", JH7100_AUDCLK_I2SADC_BCLK),
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JH71X0_MDIV(JH7100_AUDCLK_I2SADC_LRCLK, "i2sadc_lrclk", 63, 3,
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JH7100_AUDCLK_I2SADC_BCLK_N,
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JH7100_AUDCLK_I2SADC_LRCLK_IOPAD,
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JH7100_AUDCLK_I2SADC_BCLK),
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JH71X0_GATE(JH7100_AUDCLK_PDM_APB, "pdm_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0__GMD(JH7100_AUDCLK_PDM_MCLK, "pdm_mclk", 0, 15, 2,
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JH7100_AUDCLK_AUDIO_SRC,
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JH7100_AUDCLK_AUDIO_12288),
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JH71X0_GATE(JH7100_AUDCLK_I2SVAD_APB, "i2svad_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0__GMD(JH7100_AUDCLK_SPDIF, "spdif", 0, 15, 2,
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JH7100_AUDCLK_AUDIO_SRC,
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JH7100_AUDCLK_AUDIO_12288),
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JH71X0_GATE(JH7100_AUDCLK_SPDIF_APB, "spdif_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0_GATE(JH7100_AUDCLK_PWMDAC_APB, "pwmdac_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0__GMD(JH7100_AUDCLK_DAC_MCLK, "dac_mclk", 0, 15, 2,
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JH7100_AUDCLK_AUDIO_SRC,
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JH7100_AUDCLK_AUDIO_12288),
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JH71X0_GATE(JH7100_AUDCLK_I2SDAC_APB, "i2sdac_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0_MDIV(JH7100_AUDCLK_I2SDAC_BCLK, "i2sdac_bclk", 31, 2,
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JH7100_AUDCLK_DAC_MCLK,
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JH7100_AUDCLK_I2SDAC_BCLK_IOPAD),
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JH71X0__INV(JH7100_AUDCLK_I2SDAC_BCLK_N, "i2sdac_bclk_n", JH7100_AUDCLK_I2SDAC_BCLK),
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JH71X0_MDIV(JH7100_AUDCLK_I2SDAC_LRCLK, "i2sdac_lrclk", 31, 2,
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JH7100_AUDCLK_I2S1_MCLK,
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JH7100_AUDCLK_I2SDAC_BCLK_IOPAD),
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JH71X0_GATE(JH7100_AUDCLK_I2S1_APB, "i2s1_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0_MDIV(JH7100_AUDCLK_I2S1_BCLK, "i2s1_bclk", 31, 2,
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JH7100_AUDCLK_I2S1_MCLK,
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JH7100_AUDCLK_I2SDAC_BCLK_IOPAD),
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JH71X0__INV(JH7100_AUDCLK_I2S1_BCLK_N, "i2s1_bclk_n", JH7100_AUDCLK_I2S1_BCLK),
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JH71X0_MDIV(JH7100_AUDCLK_I2S1_LRCLK, "i2s1_lrclk", 63, 3,
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JH7100_AUDCLK_I2S1_BCLK_N,
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JH7100_AUDCLK_I2SDAC_LRCLK_IOPAD),
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JH71X0_GATE(JH7100_AUDCLK_I2SDAC16K_APB, "i2s1dac16k_apb", 0, JH7100_AUDCLK_APB0_BUS),
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JH71X0__DIV(JH7100_AUDCLK_APB0_BUS, "apb0_bus", 8, JH7100_AUDCLK_DOM7AHB_BUS),
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JH71X0_GATE(JH7100_AUDCLK_DMA1P_AHB, "dma1p_ahb", 0, JH7100_AUDCLK_DOM7AHB_BUS),
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JH71X0_GATE(JH7100_AUDCLK_USB_APB, "usb_apb", CLK_IGNORE_UNUSED, JH7100_AUDCLK_APB_EN),
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JH71X0_GDIV(JH7100_AUDCLK_USB_LPM, "usb_lpm", CLK_IGNORE_UNUSED, 4, JH7100_AUDCLK_USB_APB),
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JH71X0_GDIV(JH7100_AUDCLK_USB_STB, "usb_stb", CLK_IGNORE_UNUSED, 3, JH7100_AUDCLK_USB_APB),
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JH71X0__DIV(JH7100_AUDCLK_APB_EN, "apb_en", 8, JH7100_AUDCLK_DOM7AHB_BUS),
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JH71X0__MUX(JH7100_AUDCLK_VAD_MEM, "vad_mem", 2,
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JH7100_AUDCLK_VAD_INTMEM,
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JH7100_AUDCLK_AUDIO_12288),
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};
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static struct clk_hw *jh7100_audclk_get(struct of_phandle_args *clkspec, void *data)
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{
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struct jh71x0_clk_priv *priv = data;
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unsigned int idx = clkspec->args[0];
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if (idx < JH7100_AUDCLK_END)
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return &priv->reg[idx].hw;
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return ERR_PTR(-EINVAL);
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}
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static int jh7100_audclk_probe(struct platform_device *pdev)
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{
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struct jh71x0_clk_priv *priv;
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unsigned int idx;
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int ret;
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priv = devm_kzalloc(&pdev->dev, struct_size(priv, reg, JH7100_AUDCLK_END), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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spin_lock_init(&priv->rmw_lock);
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priv->dev = &pdev->dev;
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priv->base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(priv->base))
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return PTR_ERR(priv->base);
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for (idx = 0; idx < JH7100_AUDCLK_END; idx++) {
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u32 max = jh7100_audclk_data[idx].max;
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struct clk_parent_data parents[4] = {};
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struct clk_init_data init = {
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.name = jh7100_audclk_data[idx].name,
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.ops = starfive_jh71x0_clk_ops(max),
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.parent_data = parents,
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.num_parents = ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
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.flags = jh7100_audclk_data[idx].flags,
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};
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struct jh71x0_clk *clk = &priv->reg[idx];
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unsigned int i;
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for (i = 0; i < init.num_parents; i++) {
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unsigned int pidx = jh7100_audclk_data[idx].parents[i];
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if (pidx < JH7100_AUDCLK_END)
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parents[i].hw = &priv->reg[pidx].hw;
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else if (pidx == JH7100_AUDCLK_AUDIO_SRC)
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parents[i].fw_name = "audio_src";
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else if (pidx == JH7100_AUDCLK_AUDIO_12288)
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parents[i].fw_name = "audio_12288";
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else if (pidx == JH7100_AUDCLK_DOM7AHB_BUS)
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parents[i].fw_name = "dom7ahb_bus";
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}
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clk->hw.init = &init;
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clk->idx = idx;
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clk->max_div = max & JH71X0_CLK_DIV_MASK;
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ret = devm_clk_hw_register(priv->dev, &clk->hw);
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if (ret)
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return ret;
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}
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return devm_of_clk_add_hw_provider(priv->dev, jh7100_audclk_get, priv);
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}
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static const struct of_device_id jh7100_audclk_match[] = {
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{ .compatible = "starfive,jh7100-audclk" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, jh7100_audclk_match);
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static struct platform_driver jh7100_audclk_driver = {
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.probe = jh7100_audclk_probe,
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.driver = {
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.name = "clk-starfive-jh7100-audio",
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.of_match_table = jh7100_audclk_match,
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},
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};
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module_platform_driver(jh7100_audclk_driver);
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MODULE_AUTHOR("Emil Renner Berthing");
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MODULE_DESCRIPTION("StarFive JH7100 audio clock driver");
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MODULE_LICENSE("GPL v2");
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