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soundwire: add support to disable dynamic port map

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Add support to disable dynamic port map via device tree
property.
Do not update master clock when dynamic port map
is disabled for a sound wire master.

Change-Id: I9f9344866faa4d1c342787e014102d9182ed56ae
Signed-off-by: Vignesh Kulothungan <vigneshk@codeaurora.org>
This commit is contained in:
Vignesh Kulothungan
2020-02-27 14:21:21 -08:00
committed by Gerrit - the friendly Code Review server
parent 70561ef6c1
commit a4962dc546
3 changed files with 16 additions and 2 deletions
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1
include/soc/soundwire.h
View File

@@ -11,6 +11,7 @@
#include <linux/regmap.h>
#include "audio_mod_devicetable.h"
#define SWR_CLK_RATE_0P3MHZ 300000
#define SWR_CLK_RATE_0P6MHZ 600000
#define SWR_CLK_RATE_1P2MHZ 1200000
#define SWR_CLK_RATE_2P4MHZ 2400000

14
soc/swr-mstr-ctrl.c
View File

@@ -1567,6 +1567,7 @@ static int swrm_connect_port(struct swr_master *master,
mport->req_ch |= mstr_ch_msk;
master->port_en_mask |= (1 << mstr_port_id);
if (swrm->clk_stop_mode0_supp &&
swrm->dynamic_port_map_supported &&
(mport->ch_rate < portinfo->ch_rate[i])) {
mport->ch_rate = portinfo->ch_rate[i];
swrm_update_bus_clk(swrm);
@@ -1633,7 +1634,9 @@ static int swrm_disconnect_port(struct swr_master *master,
}
port_req->req_ch &= ~portinfo->ch_en[i];
mport->req_ch &= ~mstr_ch_mask;
if (swrm->clk_stop_mode0_supp && !mport->req_ch) {
if (swrm->clk_stop_mode0_supp &&
swrm->dynamic_port_map_supported &&
!mport->req_ch) {
mport->ch_rate = 0;
swrm_update_bus_clk(swrm);
}
@@ -2326,6 +2329,15 @@ static int swrm_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "%s: failed to get master id\n", __func__);
goto err_pdata_fail;
}
ret = of_property_read_u32(pdev->dev.of_node, "qcom,dynamic-port-map-supported",
&swrm->dynamic_port_map_supported);
if (ret) {
dev_dbg(&pdev->dev,
"%s: failed to get dynamic port map support, use default\n",
__func__);
swrm->dynamic_port_map_supported = 1;
}
if (!(of_property_read_u32(pdev->dev.of_node,
"swrm-io-base", &swrm->swrm_base_reg)))
ret = of_property_read_u32(pdev->dev.of_node,

1
soc/swr-mstr-ctrl.h
View File

@@ -139,6 +139,7 @@ struct swr_mstr_ctrl {
u8 rcmd_id;
u8 wcmd_id;
u32 master_id;
u32 dynamic_port_map_supported;
void *handle; /* SWR Master handle from client for read and writes */
int (*read)(void *handle, int reg);
int (*write)(void *handle, int reg, int val);