soc/intel/common: Pass in pci_devfn_t into lpss_set_power_state

This change updates the parameter passed into `lpss_set_power_state()`
from struct device * to pci_devfn_t. This allows the users in the
early stages to use pci_devfn_t instead of having to walk the device
tree to get a pointer to the relevant device structure. It is
important for optimizing out unnecessary components of the device tree
from the early stages.

Change-Id: Ic9e32794da65348fe2a0a2791db47ab83b64cb0f
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49210
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/soc/intel/common/block/include/intelblocks/lpss.h b/src/soc/intel/common/block/include/intelblocks/lpss.h
index 145857c192..8d22e7a53e 100644
--- a/src/soc/intel/common/block/include/intelblocks/lpss.h
+++ b/src/soc/intel/common/block/include/intelblocks/lpss.h
@@ -25,7 +25,7 @@ void lpss_clk_update(uintptr_t base, uint32_t clk_m_val, uint32_t clk_n_val);
 bool lpss_is_controller_in_reset(uintptr_t base);
 
 /* Set controller power state to D0 or D3*/
-void lpss_set_power_state(const struct device *dev, enum lpss_pwr_state state);
+void lpss_set_power_state(pci_devfn_t devfn, enum lpss_pwr_state state);
 
 /*
  * Handler to get list of LPSS controllers. The SOC is expected to send out a