clk: mediatek: Add MT8192 audio clock support

Add MT8192 audio clock provider

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210726105719.15793-11-chun-jie.chen@mediatek.com
Reviewed-by: Ikjoon Jang <ikjn@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 6075b48..909f423 100644 (file)
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -508,6 +508,12 @@ config COMMON_CLK_MT8192
        help
          This driver supports MediaTek MT8192 basic clocks.
 
+config COMMON_CLK_MT8192_AUDSYS
+       bool "Clock driver for MediaTek MT8192 audsys"
+       depends on COMMON_CLK_MT8192
+       help
+         This driver supports MediaTek MT8192 audsys clocks.
+
 config COMMON_CLK_MT8516
        bool "Clock driver for MediaTek MT8516"
        depends on ARCH_MEDIATEK || COMPILE_TEST

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index fcde421..1d0f2e8 100644 (file)
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -68,5 +68,6 @@ obj-$(CONFIG_COMMON_CLK_MT8183_MMSYS) += clk-mt8183-mm.o
 obj-$(CONFIG_COMMON_CLK_MT8183_VDECSYS) += clk-mt8183-vdec.o
 obj-$(CONFIG_COMMON_CLK_MT8183_VENCSYS) += clk-mt8183-venc.o
 obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192.o
+obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o

diff --git a/drivers/clk/mediatek/clk-mt8192-aud.c b/drivers/clk/mediatek/clk-mt8192-aud.c
new file mode 100644 (file)
index 0000000..f28d566
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-aud.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#include <linux/clk-provider.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8192-clk.h>
+
+static const struct mtk_gate_regs aud0_cg_regs = {
+       .set_ofs = 0x0,
+       .clr_ofs = 0x0,
+       .sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs aud1_cg_regs = {
+       .set_ofs = 0x4,
+       .clr_ofs = 0x4,
+       .sta_ofs = 0x4,
+};
+
+static const struct mtk_gate_regs aud2_cg_regs = {
+       .set_ofs = 0x8,
+       .clr_ofs = 0x8,
+       .sta_ofs = 0x8,
+};
+
+#define GATE_AUD0(_id, _name, _parent, _shift) \
+       GATE_MTK(_id, _name, _parent, &aud0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
+
+#define GATE_AUD1(_id, _name, _parent, _shift) \
+       GATE_MTK(_id, _name, _parent, &aud1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
+
+#define GATE_AUD2(_id, _name, _parent, _shift) \
+       GATE_MTK(_id, _name, _parent, &aud2_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr)
+
+static const struct mtk_gate aud_clks[] = {
+       /* AUD0 */
+       GATE_AUD0(CLK_AUD_AFE, "aud_afe", "audio_sel", 2),
+       GATE_AUD0(CLK_AUD_22M, "aud_22m", "aud_engen1_sel", 8),
+       GATE_AUD0(CLK_AUD_24M, "aud_24m", "aud_engen2_sel", 9),
+       GATE_AUD0(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner", "aud_engen2_sel", 18),
+       GATE_AUD0(CLK_AUD_APLL_TUNER, "aud_apll_tuner", "aud_engen1_sel", 19),
+       GATE_AUD0(CLK_AUD_TDM, "aud_tdm", "aud_1_sel", 20),
+       GATE_AUD0(CLK_AUD_ADC, "aud_adc", "audio_sel", 24),
+       GATE_AUD0(CLK_AUD_DAC, "aud_dac", "audio_sel", 25),
+       GATE_AUD0(CLK_AUD_DAC_PREDIS, "aud_dac_predis", "audio_sel", 26),
+       GATE_AUD0(CLK_AUD_TML, "aud_tml", "audio_sel", 27),
+       GATE_AUD0(CLK_AUD_NLE, "aud_nle", "audio_sel", 28),
+       /* AUD1 */
+       GATE_AUD1(CLK_AUD_I2S1_B, "aud_i2s1_b", "audio_sel", 4),
+       GATE_AUD1(CLK_AUD_I2S2_B, "aud_i2s2_b", "audio_sel", 5),
+       GATE_AUD1(CLK_AUD_I2S3_B, "aud_i2s3_b", "audio_sel", 6),
+       GATE_AUD1(CLK_AUD_I2S4_B, "aud_i2s4_b", "audio_sel", 7),
+       GATE_AUD1(CLK_AUD_CONNSYS_I2S_ASRC, "aud_connsys_i2s_asrc", "audio_sel", 12),
+       GATE_AUD1(CLK_AUD_GENERAL1_ASRC, "aud_general1_asrc", "audio_sel", 13),
+       GATE_AUD1(CLK_AUD_GENERAL2_ASRC, "aud_general2_asrc", "audio_sel", 14),
+       GATE_AUD1(CLK_AUD_DAC_HIRES, "aud_dac_hires", "audio_h_sel", 15),
+       GATE_AUD1(CLK_AUD_ADC_HIRES, "aud_adc_hires", "audio_h_sel", 16),
+       GATE_AUD1(CLK_AUD_ADC_HIRES_TML, "aud_adc_hires_tml", "audio_h_sel", 17),
+       GATE_AUD1(CLK_AUD_ADDA6_ADC, "aud_adda6_adc", "audio_sel", 20),
+       GATE_AUD1(CLK_AUD_ADDA6_ADC_HIRES, "aud_adda6_adc_hires", "audio_h_sel", 21),
+       GATE_AUD1(CLK_AUD_3RD_DAC, "aud_3rd_dac", "audio_sel", 28),
+       GATE_AUD1(CLK_AUD_3RD_DAC_PREDIS, "aud_3rd_dac_predis", "audio_sel", 29),
+       GATE_AUD1(CLK_AUD_3RD_DAC_TML, "aud_3rd_dac_tml", "audio_sel", 30),
+       GATE_AUD1(CLK_AUD_3RD_DAC_HIRES, "aud_3rd_dac_hires", "audio_h_sel", 31),
+       /* AUD2 */
+       GATE_AUD2(CLK_AUD_I2S5_B, "aud_i2s5_b", "audio_sel", 0),
+       GATE_AUD2(CLK_AUD_I2S6_B, "aud_i2s6_b", "audio_sel", 1),
+       GATE_AUD2(CLK_AUD_I2S7_B, "aud_i2s7_b", "audio_sel", 2),
+       GATE_AUD2(CLK_AUD_I2S8_B, "aud_i2s8_b", "audio_sel", 3),
+       GATE_AUD2(CLK_AUD_I2S9_B, "aud_i2s9_b", "audio_sel", 4),
+};
+
+static int clk_mt8192_aud_probe(struct platform_device *pdev)
+{
+       struct clk_onecell_data *clk_data;
+       struct device_node *node = pdev->dev.of_node;
+       int r;
+
+       clk_data = mtk_alloc_clk_data(CLK_AUD_NR_CLK);
+       if (!clk_data)
+               return -ENOMEM;
+
+       r = mtk_clk_register_gates(node, aud_clks, ARRAY_SIZE(aud_clks), clk_data);
+       if (r)
+               return r;
+
+       r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+       if (r)
+               return r;
+
+       r = devm_of_platform_populate(&pdev->dev);
+       if (r)
+               of_clk_del_provider(node);
+
+       return r;
+}
+
+static const struct of_device_id of_match_clk_mt8192_aud[] = {
+       { .compatible = "mediatek,mt8192-audsys", },
+       {}
+};
+
+static struct platform_driver clk_mt8192_aud_drv = {
+       .probe = clk_mt8192_aud_probe,
+       .driver = {
+               .name = "clk-mt8192-aud",
+               .of_match_table = of_match_clk_mt8192_aud,
+       },
+};
+
+builtin_platform_driver(clk_mt8192_aud_drv);