[PATCH v4 12/34] clk: mediatek: Add MT8192 audio clock support

Weiyi Lu
2020-10-22T12:38:16Z

Add MT8192 audio clock provider

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
---
drivers/clk/mediatek/Kconfig | 6 ++
drivers/clk/mediatek/Makefile | 1 +
drivers/clk/mediatek/clk-mt8192-aud.c | 118 ++++++++++++++++++++++++++++++++++
3 files changed, 125 insertions(+)
create mode 100644 drivers/clk/mediatek/clk-mt8192-aud.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index a4552da..9360fe4 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -449,6 +449,12 @@ 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 129ac75..a6af4b4 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -62,5 +62,6 @@ 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
index 0000000..b38f5a5
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-aud.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2020 MediaTek Inc.
+// Author: Weiyi Lu <weiyi.lu@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);
--
1.8.1.1.dirty