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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2022-10-26 14:02:10 +0300
committerVinod Koul <vkoul@kernel.org>2022-10-28 14:31:27 +0300
commitcf43cd33b67a291fadcd16b1ad2f435bd2e60749 (patch)
tree876910dc3da167d305ad80f8c8a267f6a7a9890f /drivers/soundwire
parentdf73f66c7dd4474a05e07f911427043bc32cff31 (diff)
downloadlinux-cf43cd33b67a291fadcd16b1ad2f435bd2e60749.tar.xz
soundwire: qcom: add support for v1.7 Soundwire Controller
This patch add support for v1.7 SoundWire Controller which has support for Multi-EE (Execution Environment), resulting in a new register and extending field in BUS_CTRL register. With these updates v1.7.0 is fully supported. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20221026110210.6575-7-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
-rw-r--r--drivers/soundwire/qcom.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 49e6d745e0fa..ce00a5cf980c 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -25,6 +25,8 @@
#define SWRM_COMP_SW_RESET 0x008
#define SWRM_COMP_STATUS 0x014
+#define SWRM_LINK_MANAGER_EE 0x018
+#define SWRM_EE_CPU 1
#define SWRM_FRM_GEN_ENABLED BIT(0)
#define SWRM_COMP_HW_VERSION 0x00
#define SWRM_COMP_CFG_ADDR 0x04
@@ -684,7 +686,14 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
u32p_replace_bits(&val, SWRM_DEF_CMD_NO_PINGS, SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK);
ctrl->reg_write(ctrl, SWRM_MCP_CFG_ADDR, val);
- ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
+ if (ctrl->version >= 0x01070000) {
+ ctrl->reg_write(ctrl, SWRM_LINK_MANAGER_EE, SWRM_EE_CPU);
+ ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL,
+ SWRM_MCP_BUS_CLK_START << SWRM_EE_CPU);
+ } else {
+ ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
+ }
+
/* Configure number of retries of a read/write cmd */
if (ctrl->version > 0x01050001) {
/* Only for versions >= 1.5.1 */
@@ -1509,7 +1518,13 @@ static int __maybe_unused swrm_runtime_resume(struct device *dev)
} else {
reset_control_reset(ctrl->audio_cgcr);
- ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
+ if (ctrl->version >= 0x01070000) {
+ ctrl->reg_write(ctrl, SWRM_LINK_MANAGER_EE, SWRM_EE_CPU);
+ ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL,
+ SWRM_MCP_BUS_CLK_START << SWRM_EE_CPU);
+ } else {
+ ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
+ }
ctrl->reg_write(ctrl, SWRM_INTERRUPT_CLEAR,
SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET);
@@ -1573,6 +1588,7 @@ static const struct of_device_id qcom_swrm_of_match[] = {
{ .compatible = "qcom,soundwire-v1.3.0", .data = &swrm_v1_3_data },
{ .compatible = "qcom,soundwire-v1.5.1", .data = &swrm_v1_5_data },
{ .compatible = "qcom,soundwire-v1.6.0", .data = &swrm_v1_6_data },
+ { .compatible = "qcom,soundwire-v1.7.0", .data = &swrm_v1_5_data },
{/* sentinel */},
};