On 11/01/23 18:57, Amadeusz Sławiński wrote:
On 1/11/2023 10:02 AM, Vijendar Mukunda wrote:
Create platform devices for sdw controllers and PDM controller based on ACP pin config selection and ACPI fw handle for pink sardine platform.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com Signed-off-by: Mastan Katragadda Mastan.Katragadda@amd.com
include/linux/soundwire/sdw_amd.h | 18 +++ sound/soc/amd/ps/acp63.h | 24 ++- sound/soc/amd/ps/pci-ps.c | 248 ++++++++++++++++++++++++++++-- 3 files changed, 277 insertions(+), 13 deletions(-) create mode 100644 include/linux/soundwire/sdw_amd.h
...
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index e86f23d97584..85154cf0b2a2 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -14,6 +14,7 @@ #include <linux/interrupt.h> #include <sound/pcm_params.h> #include <linux/pm_runtime.h> +#include <linux/soundwire/sdw_amd.h> #include "acp63.h" @@ -134,12 +135,68 @@ static irqreturn_t acp63_irq_handler(int irq, void *dev_id) return IRQ_NONE; } -static void get_acp63_device_config(u32 config, struct pci_dev *pci, - struct acp63_dev_data *acp_data) +static int sdw_amd_scan_controller(struct device *dev) +{ + struct acp63_dev_data *acp_data; + struct fwnode_handle *link; + char name[32]; + u8 count = 0; + u32 acp_sdw_power_mode = 0; + int index; + int ret;
+ acp_data = dev_get_drvdata(dev); + acp_data->acp_sdw_power_off = true; + /* Found controller, find links supported */ + ret = fwnode_property_read_u8_array((acp_data->sdw_fw_node), + "mipi-sdw-master-count", &count, 1);
+ if (ret) { + dev_err(dev, + "Failed to read mipi-sdw-master-count: %d\n", ret); + return -EINVAL; + }
+ /* Check count is within bounds */ + if (count > AMD_SDW_MAX_CONTROLLERS) { + dev_err(dev, "Controller count %d exceeds max %d\n", + count, AMD_SDW_MAX_CONTROLLERS); + return -EINVAL; + }
+ if (!count) { + dev_warn(dev, "No SoundWire controllers detected\n"); + return -EINVAL; + } + dev_dbg(dev, "ACPI reports %d Soundwire Controller devices\n", count); + acp_data->sdw_master_count = count;
Double space before '='. will fix it.
+ for (index = 0; index < count; index++) { + snprintf(name, sizeof(name), "mipi-sdw-link-%d-subproperties", index); + link = fwnode_get_named_child_node(acp_data->sdw_fw_node, name); + if (!link) { + dev_err(dev, "Master node %s not found\n", name); + return -EIO; + }
+ fwnode_property_read_u32(link, "amd-sdw-power-mode", + &acp_sdw_power_mode); + if (acp_sdw_power_mode != AMD_SDW_POWER_OFF_MODE) + acp_data->acp_sdw_power_off = false; + } + return 0; +}
+static int get_acp63_device_config(u32 config, struct pci_dev *pci, struct acp63_dev_data *acp_data) { struct acpi_device *dmic_dev; + struct acpi_device *sdw_dev; + struct device *dev; const union acpi_object *obj; bool is_dmic_dev = false; + bool is_sdw_dev = false; + int ret;
+ dev = &pci->dev; dmic_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_DMIC_ADDR, 0);
If you set dev above, you might as well use it throughout the function context? Like above in ACPI_COMPANION?
will use pci->dev throughtout the function context.
if (dmic_dev) { @@ -149,22 +206,84 @@ static void get_acp63_device_config(u32 config, struct pci_dev *pci, is_dmic_dev = true; } + sdw_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_SDW_ADDR, 0); + if (sdw_dev) { + is_sdw_dev = true; + acp_data->sdw_fw_node = acpi_fwnode_handle(sdw_dev); + ret = sdw_amd_scan_controller(dev);
Or just use &pci->dev here, so there is no need for separate variable?
will remove the "dev" local variable.