diff options
| author | Praveen Talari <praveen.talari@oss.qualcomm.com> | 2026-02-27 11:45:37 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-05-21 21:56:38 -0500 |
| commit | f1a325d2812797166c744ff7ffb2ccbafbac20ad (patch) | |
| tree | 4d0bd8fdcd602946dccf9627ba92927ba146ff7e /drivers/soc | |
| parent | 8f4ce470ff8c0d7d820d319f64f05ed9a239a240 (diff) | |
soc: qcom: geni-se: Introduce helper API for attaching power domains
The GENI Serial Engine drivers (I2C, SPI, and SERIAL) currently handle
the attachment of power domains. This often leads to duplicated code
logic across different driver probe functions.
Introduce a new helper API, geni_se_domain_attach(), to centralize
the logic for attaching "power" and "perf" domains to the GENI SE
device.
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20260227061544.1785978-7-praveen.talari@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/qcom-geni-se.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index 6e58568701b0..13ad3a51b58c 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -19,6 +19,7 @@ #include <linux/of_platform.h> #include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> +#include <linux/pm_domain.h> #include <linux/pm_opp.h> #include <linux/soc/qcom/geni-se.h> @@ -1096,6 +1097,36 @@ out_icc_disable: EXPORT_SYMBOL_GPL(geni_se_resources_activate); /** + * geni_se_domain_attach() - Attach power domains to a GENI SE device. + * @se: Pointer to the geni_se structure representing the GENI SE device. + * + * This function attaches the power domains ("power" and "perf") required + * in the SCMI auto-VM environment to the GENI Serial Engine device. It + * initializes se->pd_list with the attached domains. + * + * Return: 0 on success, or a negative error code on failure. + */ +int geni_se_domain_attach(struct geni_se *se) +{ + struct dev_pm_domain_attach_data pd_data = { + .pd_flags = PD_FLAG_DEV_LINK_ON, + .pd_names = (const char*[]) { "power", "perf" }, + .num_pd_names = 2, + }; + int ret; + + ret = devm_pm_domain_attach_list(se->dev, + &pd_data, &se->pd_list); + if (ret == 0) + return -ENODEV; + else if (ret < 0) + return ret; + + return 0; +} +EXPORT_SYMBOL_GPL(geni_se_domain_attach); + +/** * geni_se_resources_init() - Initialize resources for a GENI SE device. * @se: Pointer to the geni_se structure representing the GENI SE device. * |