[PATCH 2/2] clk: mediatek: add audsys for MT2701 SoC
Ryder Lee
ryder.lee at mediatek.com
Mon Dec 25 00:27:52 PST 2017
Add clock driver support for MT2701 audio subsystem.
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
---
drivers/clk/mediatek/Kconfig | 6 +
drivers/clk/mediatek/Makefile | 1 +
drivers/clk/mediatek/clk-mt2701-aud.c | 204 ++++++++++++++++++++++++++++++++++
3 files changed, 211 insertions(+)
create mode 100644 drivers/clk/mediatek/clk-mt2701-aud.c
diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 59dc0aa..efb6f58 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -50,6 +50,12 @@ config COMMON_CLK_MT2701_BDPSYS
---help---
This driver supports Mediatek MT2701 bdpsys clocks.
+config COMMON_CLK_MT2701_AUDSYS
+ bool "Clock driver for Mediatek MT2701 audsys"
+ depends on COMMON_CLK_MT2701
+ ---help---
+ This driver supports Mediatek MT2701 audsys clocks.
+
config COMMON_CLK_MT2712
bool "Clock driver for Mediatek MT2712"
depends on (ARCH_MEDIATEK && ARM64) || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index c421ffc..c4ab7d3 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_COMMON_CLK_MT6797_MMSYS) += clk-mt6797-mm.o
obj-$(CONFIG_COMMON_CLK_MT6797_VDECSYS) += clk-mt6797-vdec.o
obj-$(CONFIG_COMMON_CLK_MT6797_VENCSYS) += clk-mt6797-venc.o
obj-$(CONFIG_COMMON_CLK_MT2701) += clk-mt2701.o
+obj-$(CONFIG_COMMON_CLK_MT2701_AUDSYS) += clk-mt2701-aud.o
obj-$(CONFIG_COMMON_CLK_MT2701_BDPSYS) += clk-mt2701-bdp.o
obj-$(CONFIG_COMMON_CLK_MT2701_ETHSYS) += clk-mt2701-eth.o
obj-$(CONFIG_COMMON_CLK_MT2701_HIFSYS) += clk-mt2701-hif.o
diff --git a/drivers/clk/mediatek/clk-mt2701-aud.c b/drivers/clk/mediatek/clk-mt2701-aud.c
new file mode 100644
index 0000000..058738e
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2701-aud.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee at mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt2701-clk.h>
+
+#define GATE_AUDIO0(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &audio0_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_no_setclr, \
+ }
+
+#define GATE_AUDIO1(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &audio1_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_no_setclr, \
+ }
+
+#define GATE_AUDIO2(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &audio2_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_no_setclr, \
+ }
+
+#define GATE_AUDIO3(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &audio3_cg_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_no_setclr, \
+ }
+
+static const struct mtk_gate_regs audio0_cg_regs = {
+ .set_ofs = 0x0,
+ .clr_ofs = 0x0,
+ .sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs audio1_cg_regs = {
+ .set_ofs = 0x10,
+ .clr_ofs = 0x10,
+ .sta_ofs = 0x10,
+};
+
+static const struct mtk_gate_regs audio2_cg_regs = {
+ .set_ofs = 0x14,
+ .clr_ofs = 0x14,
+ .sta_ofs = 0x14,
+};
+
+static const struct mtk_gate_regs audio3_cg_regs = {
+ .set_ofs = 0x634,
+ .clr_ofs = 0x634,
+ .sta_ofs = 0x634,
+};
+
+static const struct mtk_gate audio_clks[] = {
+ /* AUDIO0 */
+ GATE_AUDIO0(CLK_AUD_AFE, "audio_afe", "aud_intbus_sel", 2),
+ GATE_AUDIO0(CLK_AUD_HDMI, "audio_hdmi", "audpll_sel", 20),
+ GATE_AUDIO0(CLK_AUD_SPDF, "audio_spdf", "audpll_sel", 21),
+ GATE_AUDIO0(CLK_AUD_SPDF2, "audio_spdf2", "audpll_sel", 22),
+ GATE_AUDIO0(CLK_AUD_APLL, "audio_apll", "audpll_sel", 23),
+ /* AUDIO1 */
+ GATE_AUDIO1(CLK_AUD_I2SIN1, "audio_i2sin1", "aud_mux1_sel", 0),
+ GATE_AUDIO1(CLK_AUD_I2SIN2, "audio_i2sin2", "aud_mux1_sel", 1),
+ GATE_AUDIO1(CLK_AUD_I2SIN3, "audio_i2sin3", "aud_mux1_sel", 2),
+ GATE_AUDIO1(CLK_AUD_I2SIN4, "audio_i2sin4", "aud_mux1_sel", 3),
+ GATE_AUDIO1(CLK_AUD_I2SIN5, "audio_i2sin5", "aud_mux1_sel", 4),
+ GATE_AUDIO1(CLK_AUD_I2SIN6, "audio_i2sin6", "aud_mux1_sel", 5),
+ GATE_AUDIO1(CLK_AUD_I2SO1, "audio_i2so1", "aud_mux1_sel", 6),
+ GATE_AUDIO1(CLK_AUD_I2SO2, "audio_i2so2", "aud_mux1_sel", 7),
+ GATE_AUDIO1(CLK_AUD_I2SO3, "audio_i2so3", "aud_mux1_sel", 8),
+ GATE_AUDIO1(CLK_AUD_I2SO4, "audio_i2so4", "aud_mux1_sel", 9),
+ GATE_AUDIO1(CLK_AUD_I2SO5, "audio_i2so5", "aud_mux1_sel", 10),
+ GATE_AUDIO1(CLK_AUD_I2SO6, "audio_i2so6", "aud_mux1_sel", 11),
+ GATE_AUDIO1(CLK_AUD_ASRCI1, "audio_asrci1", "asm_h_sel", 12),
+ GATE_AUDIO1(CLK_AUD_ASRCI2, "audio_asrci2", "asm_h_sel", 13),
+ GATE_AUDIO1(CLK_AUD_ASRCO1, "audio_asrco1", "asm_h_sel", 14),
+ GATE_AUDIO1(CLK_AUD_ASRCO2, "audio_asrco2", "asm_h_sel", 15),
+ GATE_AUDIO1(CLK_AUD_INTDIR, "audio_intdir", "intdir_sel", 20),
+ GATE_AUDIO1(CLK_AUD_A1SYS, "audio_a1sys", "aud_mux1_sel", 21),
+ GATE_AUDIO1(CLK_AUD_A2SYS, "audio_a2sys", "aud_mux2_sel", 22),
+ GATE_AUDIO1(CLK_AUD_AFE_CONN, "audio_afe_conn", "aud_mux1_sel", 23),
+ GATE_AUDIO1(CLK_AUD_AFE_MRGIF, "audio_afe_mrgif", "aud_mux1_sel", 25),
+ /* AUDIO2 */
+ GATE_AUDIO2(CLK_AUD_MMIF_UL1, "audio_ul1", "aud_mux1_sel", 0),
+ GATE_AUDIO2(CLK_AUD_MMIF_UL2, "audio_ul2", "aud_mux1_sel", 1),
+ GATE_AUDIO2(CLK_AUD_MMIF_UL3, "audio_ul3", "aud_mux1_sel", 2),
+ GATE_AUDIO2(CLK_AUD_MMIF_UL4, "audio_ul4", "aud_mux1_sel", 3),
+ GATE_AUDIO2(CLK_AUD_MMIF_UL5, "audio_ul5", "aud_mux1_sel", 4),
+ GATE_AUDIO2(CLK_AUD_MMIF_UL6, "audio_ul6", "aud_mux1_sel", 5),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL1, "audio_dl1", "aud_mux1_sel", 6),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL2, "audio_dl2", "aud_mux1_sel", 7),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL3, "audio_dl3", "aud_mux1_sel", 8),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL4, "audio_dl4", "aud_mux1_sel", 9),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL5, "audio_dl5", "aud_mux1_sel", 10),
+ GATE_AUDIO2(CLK_AUD_MMIF_DL6, "audio_dl6", "aud_mux1_sel", 11),
+ GATE_AUDIO2(CLK_AUD_MMIF_DLMCH, "audio_dlmch", "aud_mux1_sel", 12),
+ GATE_AUDIO2(CLK_AUD_MMIF_ARB1, "audio_arb1", "aud_mux1_sel", 13),
+ GATE_AUDIO2(CLK_AUD_MMIF_AWB1, "audio_awb", "aud_mux1_sel", 14),
+ GATE_AUDIO2(CLK_AUD_MMIF_AWB2, "audio_awb2", "aud_mux1_sel", 15),
+ GATE_AUDIO2(CLK_AUD_MMIF_DAI, "audio_dai", "aud_mux1_sel", 16),
+ /* AUDIO3 */
+ GATE_AUDIO3(CLK_AUD_ASRCI3, "audio_asrci3", "asm_h_sel", 2),
+ GATE_AUDIO3(CLK_AUD_ASRCI4, "audio_asrci4", "asm_h_sel", 3),
+ GATE_AUDIO3(CLK_AUD_ASRCI5, "audio_asrci5", "asm_h_sel", 4),
+ GATE_AUDIO3(CLK_AUD_ASRCI6, "audio_asrci6", "asm_h_sel", 5),
+ GATE_AUDIO3(CLK_AUD_ASRCO3, "audio_asrco3", "asm_h_sel", 6),
+ GATE_AUDIO3(CLK_AUD_ASRCO4, "audio_asrco4", "asm_h_sel", 7),
+ GATE_AUDIO3(CLK_AUD_ASRCO5, "audio_asrco5", "asm_h_sel", 8),
+ GATE_AUDIO3(CLK_AUD_ASRCO6, "audio_asrco6", "asm_h_sel", 9),
+ GATE_AUDIO3(CLK_AUD_MEM_ASRC1, "audio_mem_asrc1", "asm_h_sel", 10),
+ GATE_AUDIO3(CLK_AUD_MEM_ASRC2, "audio_mem_asrc2", "asm_h_sel", 11),
+ GATE_AUDIO3(CLK_AUD_MEM_ASRC3, "audio_mem_asrc3", "asm_h_sel", 12),
+ GATE_AUDIO3(CLK_AUD_MEM_ASRC4, "audio_mem_asrc4", "asm_h_sel", 13),
+ GATE_AUDIO3(CLK_AUD_MEM_ASRC5, "audio_mem_asrc5", "asm_h_sel", 14),
+};
+
+static int clk_mt2701_audiosys_init(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);
+
+ mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
+ clk_data);
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ dev_err(&pdev->dev,
+ "could not register clock provider: %s: %d\n",
+ pdev->name, r);
+
+ return r;
+}
+
+static const struct of_device_id of_match_clk_mt2701_aud[] = {
+ {
+ .compatible = "mediatek,mt2701-audsys",
+ .data = clk_mt2701_audiosys_init,
+ }, {
+ /* sentinel */
+ }
+};
+
+static int clk_mt2701_aud_probe(struct platform_device *pdev)
+{
+ int (*clk_init)(struct platform_device *);
+ int r;
+
+ clk_init = of_device_get_match_data(&pdev->dev);
+ if (!clk_init)
+ return -EINVAL;
+
+ r = clk_init(pdev);
+ if (r)
+ dev_err(&pdev->dev,
+ "could not register clock provider: %s: %d\n",
+ pdev->name, r);
+
+ return r;
+}
+
+static struct platform_driver clk_mt2701_aud_drv = {
+ .probe = clk_mt2701_aud_probe,
+ .driver = {
+ .name = "clk-mt2701-aud",
+ .of_match_table = of_match_clk_mt2701_aud,
+ },
+};
+
+builtin_platform_driver(clk_mt2701_aud_drv);
--
1.9.1
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