[PATCH] ASoC: qcom: soundwire: Add support for controlling audio CGCR from HLOS
Add support for controlling soundwire audio CGCR interface using clock framework to make hclk ungating with software. As per new hardware changes, software has to always ungate hclk if soundwire is operational and keep it running. This requirement is for latest LPASS chipsets for RX, TX and WSA path to work.
Signed-off-by: Srinivasa Rao Mandadapu quic_srivasam@quicinc.com Co-developed-by: Venkata Prasad Potturu quic_potturu@quicinc.com Signed-off-by: Venkata Prasad Potturu quic_potturu@quicinc.com --- This patch set depends on: -- Clock driver patches with reset control support, yet to be posted.
drivers/soundwire/qcom.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index fb183bd..440aad8 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -12,6 +12,7 @@ #include <linux/of_irq.h> #include <linux/of_device.h> #include <linux/regmap.h> +#include <linux/reset.h> #include <linux/slab.h> #include <linux/slimbus.h> #include <linux/soundwire/sdw.h> @@ -129,6 +130,7 @@ struct qcom_swrm_ctrl { struct device *dev; struct regmap *regmap; void __iomem *mmio; + struct reset_control *audio_cgcr; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs; #endif @@ -618,6 +620,8 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl) val = FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, ctrl->rows_index); val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, ctrl->cols_index);
+ reset_control_reset(ctrl->audio_cgcr); + ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val);
/* Enable Auto enumeration */ @@ -1269,6 +1273,9 @@ static int qcom_swrm_probe(struct platform_device *pdev) ctrl->bus.ops = &qcom_swrm_ops; ctrl->bus.port_ops = &qcom_swrm_port_ops; ctrl->bus.compute_params = &qcom_swrm_compute_params; + ctrl->audio_cgcr = devm_reset_control_get_exclusive(dev, "swr_audio_cgcr"); + if (IS_ERR(ctrl->audio_cgcr)) + dev_err(dev, "Failed to get audio_cgcr reset required for soundwire-v1.6.0\n");
ret = qcom_swrm_get_port_config(ctrl); if (ret)
On Mon, Feb 28, 2022 at 01:39:10PM +0530, Srinivasa Rao Mandadapu wrote:
- ctrl->audio_cgcr = devm_reset_control_get_exclusive(dev, "swr_audio_cgcr");
- if (IS_ERR(ctrl->audio_cgcr))
dev_err(dev, "Failed to get audio_cgcr reset required for soundwire-v1.6.0\n");
Doesn't this need a DT binding update?
On 2/28/2022 6:52 PM, Mark Brown wrote: Thanks for Your Time Brown!!!
On Mon, Feb 28, 2022 at 01:39:10PM +0530, Srinivasa Rao Mandadapu wrote:
- ctrl->audio_cgcr = devm_reset_control_get_exclusive(dev, "swr_audio_cgcr");
- if (IS_ERR(ctrl->audio_cgcr))
dev_err(dev, "Failed to get audio_cgcr reset required for soundwire-v1.6.0\n");Doesn't this need a DT binding update?
DT binding included in another patch which was sent recently. As this patch depends on clock driver patches didn't mention the below dependence.
https://patchwork.kernel.org/project/alsa-devel/list/?series=618579
On Mon, Feb 28, 2022 at 06:57:55PM +0530, Srinivasa Rao Mandadapu wrote:
DT binding included in another patch which was sent recently. As this patch depends on clock driver patches didn't mention the below dependence.
https://patchwork.kernel.org/project/alsa-devel/list/?series=618579
This is all getting far too messy and complicated - you're sending lots of different versions of multiple patch serieses with various interdependencies and conflicts some of which you're forgetting to mention and some of which are against things that haven't even been posted yet. Please slow down a bit here, take a bit more care and try to rate limit the amount of stuff you're sending out at once. It'll make things a lot easier to manage and probably take less time and effort overall.
participants (2)
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Mark Brown -
Srinivasa Rao Mandadapu