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ASoC: Intel: Skylake: Add extended I2S config blob support in Clock driver

Selaa lähdekoodia 
Extended I2S config blob supports multiple mclk dividers in NHLT blob.
This patch detects whether the I2S blob is legacy or extended based on the
signature value and chooses the mclk source and divider accordingly.

Signed-off-by: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sriram Periyasamy
2018-01-04 16:55:15 +05:30
committed by Mark Brown
vanhempi 01f50d69be
commit 9afbc5ec76
2 muutettua tiedostoa jossa 59 lisäystä ja 11 poistoa
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39
sound/soc/intel/skylake/skl-nhlt.c
Näytä tiedosto

@@ -28,6 +28,7 @@ static guid_t osc_guid =
GUID_INIT(0xA69F886E, 0x6CEB, 0x4594,
0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53);
struct nhlt_acpi_table *skl_nhlt_init(struct device *dev)
{
acpi_handle handle;
@@ -287,6 +288,7 @@ void skl_nhlt_remove_sysfs(struct skl *skl)
static void skl_get_ssp_clks(struct skl *skl, struct skl_ssp_clk *ssp_clks,
struct nhlt_fmt *fmt, u8 id)
{
struct skl_i2s_config_blob_ext *i2s_config_ext;
struct skl_i2s_config_blob_legacy *i2s_config;
struct skl_clk_parent_src *parent;
struct skl_ssp_clk *sclk, *sclkfs;
@@ -347,12 +349,18 @@ static void skl_get_ssp_clks(struct skl *skl, struct skl_ssp_clk *ssp_clks,
/* Fill rate and parent for sclk/sclkfs */
if (!present) {
/* MCLK Divider Source Select */
i2s_config = (struct skl_i2s_config_blob_legacy *)
i2s_config_ext = (struct skl_i2s_config_blob_ext *)
fmt->fmt_config[0].config.caps;
clk_src = ((i2s_config->mclk.mdivctrl)
& SKL_MNDSS_DIV_CLK_SRC_MASK) >>
SKL_SHIFT(SKL_MNDSS_DIV_CLK_SRC_MASK);
/* MCLK Divider Source Select */
if (is_legacy_blob(i2s_config_ext->hdr.sig)) {
i2s_config = ext_to_legacy_blob(i2s_config_ext);
clk_src = get_clk_src(i2s_config->mclk,
SKL_MNDSS_DIV_CLK_SRC_MASK);
} else {
clk_src = get_clk_src(i2s_config_ext->mclk,
SKL_MNDSS_DIV_CLK_SRC_MASK);
}
parent = skl_get_parent_clk(clk_src);
@@ -378,6 +386,7 @@ static void skl_get_ssp_clks(struct skl *skl, struct skl_ssp_clk *ssp_clks,
static void skl_get_mclk(struct skl *skl, struct skl_ssp_clk *mclk,
struct nhlt_fmt *fmt, u8 id)
{
struct skl_i2s_config_blob_ext *i2s_config_ext;
struct skl_i2s_config_blob_legacy *i2s_config;
struct nhlt_specific_cfg *fmt_cfg;
struct skl_clk_parent_src *parent;
@@ -385,13 +394,21 @@ static void skl_get_mclk(struct skl *skl, struct skl_ssp_clk *mclk,
u8 clk_src;
fmt_cfg = &fmt->fmt_config[0].config;
i2s_config = (struct skl_i2s_config_blob_legacy *)fmt_cfg->caps;
i2s_config_ext = (struct skl_i2s_config_blob_ext *)fmt_cfg->caps;
/* MCLK Divider Source Select */
clk_src = ((i2s_config->mclk.mdivctrl) & SKL_MCLK_DIV_CLK_SRC_MASK) >>
SKL_SHIFT(SKL_MCLK_DIV_CLK_SRC_MASK);
clkdiv = i2s_config->mclk.mdivr & SKL_MCLK_DIV_RATIO_MASK;
/* MCLK Divider Source Select and divider */
if (is_legacy_blob(i2s_config_ext->hdr.sig)) {
i2s_config = ext_to_legacy_blob(i2s_config_ext);
clk_src = get_clk_src(i2s_config->mclk,
SKL_MCLK_DIV_CLK_SRC_MASK);
clkdiv = i2s_config->mclk.mdivr &
SKL_MCLK_DIV_RATIO_MASK;
} else {
clk_src = get_clk_src(i2s_config_ext->mclk,
SKL_MCLK_DIV_CLK_SRC_MASK);
clkdiv = i2s_config_ext->mclk.mdivr[0] &
SKL_MCLK_DIV_RATIO_MASK;
}
/* bypass divider */
div_ratio = 1;