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soundwire: qcom: add support to block packing mode 

This patch adds support to block pack mode, which is required
on Qcom soundwire controllers v1.5.x on few ports!

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200917120138.11313-3-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2020-09-17 13:01:37 +01:00 committed by Vinod Koul
parent 578ddced23
commit 5ffba1fb6d
1 changed files with 19 additions and 3 deletions
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22
drivers/soundwire/qcom.c
View File

@ -54,6 +54,7 @@
#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_BLOCK_CTRL3_BANK(n, m) (0x1138 + 0x100 * (n - 1) + 0x40 * m)
#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
@ -82,6 +83,7 @@ struct qcom_swrm_port_config {
u8 si;
u8 off1;
u8 off2;
u8 bp_mode;
};
struct qcom_swrm_ctrl {
@ -392,14 +394,22 @@ static int qcom_swrm_transport_params(struct sdw_bus *bus,
{
struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
u32 value;
int reg = SWRM_DP_PORT_CTRL_BANK((params->port_num), bank);
int ret;
value = params->offset1 << SWRM_DP_PORT_CTRL_OFFSET1_SHFT;
value |= params->offset2 << SWRM_DP_PORT_CTRL_OFFSET2_SHFT;
value |= params->sample_interval - 1;
return ctrl->reg_write(ctrl,
SWRM_DP_PORT_CTRL_BANK((params->port_num), bank),
value);
ret = ctrl->reg_write(ctrl, reg, value);
if (!ret && params->blk_pkg_mode) {
reg = SWRM_DP_BLOCK_CTRL3_BANK(params->port_num, bank);
ret = ctrl->reg_write(ctrl, reg, 1);
}
return ret;
}
static int qcom_swrm_port_enable(struct sdw_bus *bus,
@ -447,6 +457,7 @@ static int qcom_swrm_compute_params(struct sdw_bus *bus)
p_rt->transport_params.sample_interval = pcfg->si + 1;
p_rt->transport_params.offset1 = pcfg->off1;
p_rt->transport_params.offset2 = pcfg->off2;
p_rt->transport_params.blk_pkg_mode = pcfg->bp_mode;
}
list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) {
@ -457,6 +468,7 @@ static int qcom_swrm_compute_params(struct sdw_bus *bus)
pcfg->si + 1;
p_rt->transport_params.offset1 = pcfg->off1;
p_rt->transport_params.offset2 = pcfg->off2;
p_rt->transport_params.blk_pkg_mode = pcfg->bp_mode;
i++;
}
}
@ -703,6 +715,7 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
u8 off1[QCOM_SDW_MAX_PORTS];
u8 off2[QCOM_SDW_MAX_PORTS];
u8 si[QCOM_SDW_MAX_PORTS];
u8 bp_mode[QCOM_SDW_MAX_PORTS] = { 0, };
int i, ret, nports, val;
ctrl->reg_read(ctrl, SWRM_COMP_PARAMS, &val);
@ -745,10 +758,13 @@ static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
if (ret)
return ret;
ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode",
bp_mode, nports);
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];
}
return 0;