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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/intel/skylake/skl-ssp-clk.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
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.h | 108 |
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 0000000000..b7852c7f27 --- /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 */ |