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soc: soundwire: Update hctl gate setting for SWR version 1.6

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In soundwire version 1.6, hw_ctl gating is required to address
HW limitation as SW workaround to get SWR functionality working.

Change-Id: Ia0939b1271f5400319217433de658a55a05ca404
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam
2019-08-27 16:19:14 +05:30
parent 3c19b49560
commit c7bfab9706
2 changed files with 18 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
soc/swr-mstr-ctrl.c
View File

@@ -2022,6 +2022,7 @@ static int swrm_master_init(struct swr_mstr_ctrl *swrm)
u8 retry_cmd_num = 3;
u32 reg[SWRM_MAX_INIT_REG];
u32 value[SWRM_MAX_INIT_REG];
u32 temp = 0;
int len = 0;
/* Clear Rows and Cols */
@@ -2075,11 +2076,20 @@ static int swrm_master_init(struct swr_mstr_ctrl *swrm)
* For SWR master version 1.5.1, continue
* execute on command ignore.
*/
if (swrm->version == SWRM_VERSION_1_5_1)
/* Execute it for versions >= 1.5.1 */
if (swrm->version >= SWRM_VERSION_1_5_1)
swr_master_write(swrm, SWRM_CMD_FIFO_CFG_ADDR,
(swr_master_read(swrm,
SWRM_CMD_FIFO_CFG_ADDR) | 0x80000000));
/* SW workaround to gate hw_ctl for SWR version >=1.6 */
if (swrm->version >= SWRM_VERSION_1_6) {
if (swrm->swrm_hctl_reg) {
temp = ioread32(swrm->swrm_hctl_reg);
temp &= 0xFFFFFFFD;
iowrite32(temp, swrm->swrm_hctl_reg);
}
}
return ret;
}
@@ -2129,7 +2139,7 @@ static int swrm_probe(struct platform_device *pdev)
{
struct swr_mstr_ctrl *swrm;
struct swr_ctrl_platform_data *pdata;
u32 i, num_ports, port_num, port_type, ch_mask;
u32 i, num_ports, port_num, port_type, ch_mask, swrm_hctl_reg = 0;
u32 *temp, map_size, map_length, ch_iter = 0, old_port_num = 0;
int ret = 0;
struct clk *lpass_core_hw_vote = NULL;
@@ -2198,6 +2208,10 @@ static int swrm_probe(struct platform_device *pdev)
}
swrm->core_vote = pdata->core_vote;
if (!(of_property_read_u32(pdev->dev.of_node,
"qcom,swrm-hctl-reg", &swrm_hctl_reg)))
swrm->swrm_hctl_reg = devm_ioremap(&pdev->dev,
swrm_hctl_reg, 0x4);
swrm->clk = pdata->clk;
if (!swrm->clk) {
dev_err(&pdev->dev, "%s: swrm->clk is NULL\n",

2
soc/swr-mstr-ctrl.h
View File

@@ -38,6 +38,7 @@
#define SWRM_VERSION_1_3 0x01040000
#define SWRM_VERSION_1_5 0x01050000
#define SWRM_VERSION_1_5_1 0x01050001
#define SWRM_VERSION_1_6 0x01060000
#define SWR_MAX_CH_PER_PORT 8
@@ -125,6 +126,7 @@ struct swr_mstr_ctrl {
struct mutex pm_lock;
u32 swrm_base_reg;
char __iomem *swrm_dig_base;
char __iomem *swrm_hctl_reg;
u8 rcmd_id;
u8 wcmd_id;
u32 master_id;