soc: soundwire: Update hctl gate setting for SWR version 1.6
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>
diff --git a/soc/swr-mstr-ctrl.c b/soc/swr-mstr-ctrl.c
index 44d245d..599644f 100644
--- a/soc/swr-mstr-ctrl.c
+++ b/soc/swr-mstr-ctrl.c
@@ -2022,6 +2022,7 @@
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 @@
* 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 @@
{
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 @@
}
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",