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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/intel/skylake/skl-ssp-clk.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/intel/skylake/skl-ssp-clk.h')
-rw-r--r--sound/soc/intel/skylake/skl-ssp-clk.h108
1 files changed, 108 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/skl-ssp-clk.h b/sound/soc/intel/skylake/skl-ssp-clk.h
new file mode 100644
index 000000000..b7852c7f2
--- /dev/null
+++ b/sound/soc/intel/skylake/skl-ssp-clk.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * skl-ssp-clk.h - Skylake ssp clock information and ipc structure
+ *
+ * Copyright (C) 2017 Intel Corp
+ * Author: Jaikrishna Nemallapudi <jaikrishnax.nemallapudi@intel.com>
+ * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef SOUND_SOC_SKL_SSP_CLK_H
+#define SOUND_SOC_SKL_SSP_CLK_H
+
+#define SKL_MAX_SSP 6
+/* xtal/cardinal/pll, parent of ssp clocks and mclk */
+#define SKL_MAX_CLK_SRC 3
+#define SKL_MAX_SSP_CLK_TYPES 3 /* mclk, sclk, sclkfs */
+
+#define SKL_MAX_CLK_CNT (SKL_MAX_SSP * SKL_MAX_SSP_CLK_TYPES)
+
+/* Max number of configurations supported for each clock */
+#define SKL_MAX_CLK_RATES 10
+
+#define SKL_SCLK_OFS SKL_MAX_SSP
+#define SKL_SCLKFS_OFS (SKL_SCLK_OFS + SKL_MAX_SSP)
+
+enum skl_clk_type {
+ SKL_MCLK,
+ SKL_SCLK,
+ SKL_SCLK_FS,
+};
+
+enum skl_clk_src_type {
+ SKL_XTAL,
+ SKL_CARDINAL,
+ SKL_PLL,
+};
+
+struct skl_clk_parent_src {
+ u8 clk_id;
+ const char *name;
+ unsigned long rate;
+ const char *parent_name;
+};
+
+struct skl_tlv_hdr {
+ u32 type;
+ u32 size;
+};
+
+struct skl_dmactrl_mclk_cfg {
+ struct skl_tlv_hdr hdr;
+ /* DMA Clk TLV params */
+ u32 clk_warm_up:16;
+ u32 mclk:1;
+ u32 warm_up_over:1;
+ u32 rsvd0:14;
+ u32 clk_stop_delay:16;
+ u32 keep_running:1;
+ u32 clk_stop_over:1;
+ u32 rsvd1:14;
+};
+
+struct skl_dmactrl_sclkfs_cfg {
+ struct skl_tlv_hdr hdr;
+ /* DMA SClk&FS TLV params */
+ u32 sampling_frequency;
+ u32 bit_depth;
+ u32 channel_map;
+ u32 channel_config;
+ u32 interleaving_style;
+ u32 number_of_channels : 8;
+ u32 valid_bit_depth : 8;
+ u32 sample_type : 8;
+ u32 reserved : 8;
+};
+
+union skl_clk_ctrl_ipc {
+ struct skl_dmactrl_mclk_cfg mclk;
+ struct skl_dmactrl_sclkfs_cfg sclk_fs;
+};
+
+struct skl_clk_rate_cfg_table {
+ unsigned long rate;
+ union skl_clk_ctrl_ipc dma_ctl_ipc;
+ void *config;
+};
+
+/*
+ * rate for mclk will be in rates[0]. For sclk and sclkfs, rates[] store
+ * all possible clocks ssp can generate for that platform.
+ */
+struct skl_ssp_clk {
+ const char *name;
+ const char *parent_name;
+ struct skl_clk_rate_cfg_table rate_cfg[SKL_MAX_CLK_RATES];
+};
+
+struct skl_clk_pdata {
+ struct skl_clk_parent_src *parent_clks;
+ int num_clks;
+ struct skl_ssp_clk *ssp_clks;
+ void *pvt_data;
+};
+
+#endif /* SOUND_SOC_SKL_SSP_CLK_H */