diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2026-01-13 09:27:02 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2026-01-14 17:21:10 +0100 |
| commit | 95cb1935168ab8f637bd0bf64b9ec6f5667d1d8e (patch) | |
| tree | e8a8159cb8e52bf5ed76c39dad86cbbb46cc8c30 | |
| parent | b9a15012a14520b2b006ecb770f32eb9a57d4b8b (diff) | |
i3c: mipi-i3c-hci-pci: Add Runtime PM support
Enable Runtime PM for the mipi_i3c_hci_pci driver. Introduce helpers to
allow and forbid Runtime PM during probe and remove, using pm_runtime APIs.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260113072702.16268-22-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| -rw-r--r-- | drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c index 458f871a2e61..1b38771667e5 100644 --- a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c +++ b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c @@ -18,6 +18,7 @@ #include <linux/platform_data/mipi-i3c-hci.h> #include <linux/platform_device.h> #include <linux/pm_qos.h> +#include <linux/pm_runtime.h> /* * There can up to 15 instances, but implementations have at most 2 at this @@ -208,6 +209,18 @@ static const struct mipi_i3c_hci_pci_info intel_si_2_info = { .instance_count = 1, }; +static void mipi_i3c_hci_pci_rpm_allow(struct device *dev) +{ + pm_runtime_put(dev); + pm_runtime_allow(dev); +} + +static void mipi_i3c_hci_pci_rpm_forbid(struct device *dev) +{ + pm_runtime_forbid(dev); + pm_runtime_get_sync(dev); +} + struct mipi_i3c_hci_pci_cell_data { struct mipi_i3c_hci_platform_data pdata; struct resource res; @@ -285,6 +298,8 @@ static int mipi_i3c_hci_pci_probe(struct pci_dev *pci, pci_set_drvdata(pci, hci); + mipi_i3c_hci_pci_rpm_allow(&pci->dev); + return 0; err_exit: @@ -300,6 +315,8 @@ static void mipi_i3c_hci_pci_remove(struct pci_dev *pci) if (hci->info->exit) hci->info->exit(hci); + mipi_i3c_hci_pci_rpm_forbid(&pci->dev); + mfd_remove_devices(&pci->dev); } |