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Commit a4962dc5 authored by Vignesh Kulothungan's avatar Vignesh Kulothungan Committed by Gerrit - the friendly Code Review server
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soundwire: add support to disable dynamic port map 



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: default avatarVignesh Kulothungan <vigneshk@codeaurora.org>
parent 70561ef6

include/soc/soundwire.h

+1 −0
Original line number Diff line number Diff line
@@ -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

soc/swr-mstr-ctrl.c

+14 −2
Original line number Diff line number Diff line
@@ -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,

soc/swr-mstr-ctrl.h

+1 −0
Original line number Diff line number Diff line
@@ -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);