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Message-Id: <20210129173248.5941-2-srinivas.kandagatla@linaro.org>
Date: Fri, 29 Jan 2021 17:32:43 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: vkoul@...nel.org
Cc: yung-chuan.liao@...ux.intel.com,
pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 1/6] soundwire: qcom: add support to missing transport params
Some of the transport parameters derived from device tree
are not fully parsed by the driver.
This patch adds support to parse those missing parameters.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
drivers/soundwire/qcom.c | 107 +++++++++++++++++++++++++++++++++++++--
1 file changed, 103 insertions(+), 4 deletions(-)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 6d22df01f354..36e273795cbe 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -54,7 +54,13 @@
#define SWRM_MCP_SLV_STATUS 0x1090
#define SWRM_MCP_SLV_STATUS_MASK GENMASK(1, 0)
#define SWRM_DP_PORT_CTRL_BANK(n, m) (0x1124 + 0x100 * (n - 1) + 0x40 * m)
+#define SWRM_DP_PORT_CTRL_2_BANK(n, m) (0x1128 + 0x100 * (n - 1) + 0x40 * m)
+#define SWRM_DP_BLOCK_CTRL_1(n) (0x112C + 0x100 * (n - 1))
+#define SWRM_DP_BLOCK_CTRL2_BANK(n, m) (0x1130 + 0x100 * (n - 1) + 0x40 * m)
+#define SWRM_DP_PORT_HCTRL_BANK(n, m) (0x1134 + 0x100 * (n - 1) + 0x40 * m)
#define SWRM_DP_BLOCK_CTRL3_BANK(n, m) (0x1138 + 0x100 * (n - 1) + 0x40 * m)
+#define SWRM_DIN_DPn_PCM_PORT_CTRL(n) (0x1054 + 0x100 * (n - 1))
+
#define SWRM_DP_PORT_CTRL_EN_CHAN_SHFT 0x18
#define SWRM_DP_PORT_CTRL_OFFSET2_SHFT 0x10
#define SWRM_DP_PORT_CTRL_OFFSET1_SHFT 0x08
@@ -73,12 +79,20 @@
#define QCOM_SDW_MAX_PORTS 14
#define DEFAULT_CLK_FREQ 9600000
#define SWRM_MAX_DAIS 0xF
+#define SWR_INVALID_PARAM 0xFF
+#define SWR_HSTOP_MAX_VAL 0xF
+#define SWR_HSTART_MIN_VAL 0x0
struct qcom_swrm_port_config {
u8 si;
u8 off1;
u8 off2;
u8 bp_mode;
+ u8 hstart;
+ u8 hstop;
+ u8 word_length;
+ u8 bgp_count;
+ u8 lane_control;
};
struct qcom_swrm_ctrl {
@@ -396,7 +410,13 @@ static int qcom_swrm_port_params(struct sdw_bus *bus,
struct sdw_port_params *p_params,
unsigned int bank)
{
- /* TBD */
+ struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
+
+ if (p_params->bps != SWR_INVALID_PARAM)
+ return ctrl->reg_write(ctrl,
+ SWRM_DP_BLOCK_CTRL_1(p_params->num),
+ p_params->bps - 1);
+
return 0;
}
@@ -415,10 +435,32 @@ static int qcom_swrm_transport_params(struct sdw_bus *bus,
ret = ctrl->reg_write(ctrl, reg, value);
- if (!ret && params->blk_pkg_mode) {
- reg = SWRM_DP_BLOCK_CTRL3_BANK(params->port_num, bank);
+ if (params->lane_ctrl != SWR_INVALID_PARAM) {
+ reg = SWRM_DP_PORT_CTRL_2_BANK(params->port_num, bank);
+ value = params->lane_ctrl;
+ ret = ctrl->reg_write(ctrl, reg, value);
+ }
- ret = ctrl->reg_write(ctrl, reg, 1);
+ if (params->blk_grp_ctrl != SWR_INVALID_PARAM) {
+ reg = SWRM_DP_BLOCK_CTRL2_BANK(params->port_num, bank);
+ value = params->blk_grp_ctrl;
+ ret = ctrl->reg_write(ctrl, reg, value);
+ }
+
+ if (params->hstart != SWR_INVALID_PARAM
+ && params->hstop != SWR_INVALID_PARAM) {
+ reg = SWRM_DP_PORT_HCTRL_BANK(params->port_num, bank);
+ value = (params->hstop << 4) | params->hstart;
+ ret = ctrl->reg_write(ctrl, reg, value);
+ } else {
+ reg = SWRM_DP_PORT_HCTRL_BANK(params->port_num, bank);
+ value = (SWR_HSTOP_MAX_VAL << 4) | SWR_HSTART_MIN_VAL;
+ ret = ctrl->reg_write(ctrl, reg, value);
+ }
+
+ if (params->blk_pkg_mode != SWR_INVALID_PARAM) {
+ reg = SWRM_DP_BLOCK_CTRL3_BANK(params->port_num, bank);
+ ret = ctrl->reg_write(ctrl, reg, params->blk_pkg_mode);
}
return ret;
@@ -470,6 +512,17 @@ static int qcom_swrm_compute_params(struct sdw_bus *bus)
p_rt->transport_params.offset1 = pcfg->off1;
p_rt->transport_params.offset2 = pcfg->off2;
p_rt->transport_params.blk_pkg_mode = pcfg->bp_mode;
+ p_rt->transport_params.blk_grp_ctrl = pcfg->bgp_count;
+ p_rt->transport_params.hstart = pcfg->hstart;
+ p_rt->transport_params.hstop = pcfg->hstop;
+ p_rt->transport_params.lane_ctrl = pcfg->lane_control;
+ if (pcfg->word_length != SWR_INVALID_PARAM) {
+ sdw_fill_port_params(&p_rt->port_params,
+ p_rt->num, pcfg->word_length + 1,
+ SDW_PORT_FLOW_MODE_ISOCH,
+ SDW_PORT_DATA_MODE_NORMAL);
+ }
+
}
list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) {
@@ -481,6 +534,18 @@ static int qcom_swrm_compute_params(struct sdw_bus *bus)
p_rt->transport_params.offset1 = pcfg->off1;
p_rt->transport_params.offset2 = pcfg->off2;
p_rt->transport_params.blk_pkg_mode = pcfg->bp_mode;
+ p_rt->transport_params.blk_grp_ctrl = pcfg->bgp_count;
+
+ p_rt->transport_params.hstart = pcfg->hstart;
+ p_rt->transport_params.hstop = pcfg->hstop;
+ p_rt->transport_params.lane_ctrl = pcfg->lane_control;
+ if (pcfg->word_length != SWR_INVALID_PARAM) {
+ sdw_fill_port_params(&p_rt->port_params,
+ p_rt->num,
+ pcfg->word_length + 1,
+ SDW_PORT_FLOW_MODE_ISOCH,
+ SDW_PORT_DATA_MODE_NORMAL);
+ }
i++;
}
}
@@ -728,6 +793,11 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
u8 off2[QCOM_SDW_MAX_PORTS];
u8 si[QCOM_SDW_MAX_PORTS];
u8 bp_mode[QCOM_SDW_MAX_PORTS] = { 0, };
+ u8 hstart[QCOM_SDW_MAX_PORTS];
+ u8 hstop[QCOM_SDW_MAX_PORTS];
+ u8 word_length[QCOM_SDW_MAX_PORTS];
+ u8 bgp_count[QCOM_SDW_MAX_PORTS];
+ u8 lane_control[QCOM_SDW_MAX_PORTS];
int i, ret, nports, val;
ctrl->reg_read(ctrl, SWRM_COMP_PARAMS, &val);
@@ -772,11 +842,40 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode",
bp_mode, nports);
+
+ ret = of_property_read_u8_array(np, "qcom,ports-hstart", hstart, nports);
+ if (ret)
+ memset(hstart, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
+
+ ret = of_property_read_u8_array(np, "qcom,ports-hstop", hstop, nports);
+ if (ret)
+ memset(hstop, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
+
+ ret = of_property_read_u8_array(np, "qcom,ports-word-length",
+ word_length, nports);
+ if (ret)
+ memset(word_length, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
+
+ ret = of_property_read_u8_array(np, "qcom,ports-block-group-count",
+ bgp_count, nports);
+ if (ret)
+ memset(bgp_count, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
+
+ ret = of_property_read_u8_array(np, "qcom,ports-lane-control",
+ lane_control, nports);
+ if (ret)
+ memset(lane_control, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
+
for (i = 0; i < nports; i++) {
ctrl->pconfig[i].si = si[i];
ctrl->pconfig[i].off1 = off1[i];
ctrl->pconfig[i].off2 = off2[i];
ctrl->pconfig[i].bp_mode = bp_mode[i];
+ ctrl->pconfig[i].hstart = hstart[i];
+ ctrl->pconfig[i].hstop = hstop[i];
+ ctrl->pconfig[i].word_length = word_length[i];
+ ctrl->pconfig[i].bgp_count = bgp_count[i];
+ ctrl->pconfig[i].lane_control = lane_control[i];
}
return 0;
--
2.21.0
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