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path: root/src/drivers/intel/pmc_mux
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2020-07-04drivers/intel/pmc_mux: Rename con driver to connTim Wawrzynczak
For historical reasons, Windows has issues with certain names being used for files and directories, 'con' or 'CON' being one of them. Therefore, rename the pmc_mux/con driver to pmc_mux/conn in order to work around this issue. TEST=built volteer (only user of this driver as of now) Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: Ia78dc4efe647c96a7169a3b95fc3b8944d052c83 Reviewed-on: https://review.coreboot.org/c/coreboot/+/43090 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Caveh Jalali <caveh@chromium.org>
2020-07-03drivers/intel/pmx_mux: Remove redundant declarationKyösti Mälkki
Change-Id: Ie64b267ac01afa9774105e1ab8a7c18021726ff3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41871 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-30src/drivers/intel: Avoid NULL pointer dereferenceJohn Zhao
Coverity detects dereferencing pointers that might be "NULL" when calling acpigen_write_scope and acpigen_write_device. Add sanity check for both of scope and name to prevent NULL pointer dereference. Found-by: Coverity CID 1429979, 1429982 TEST=Built and boot up to kernel. Signed-off-by: John Zhao <john.zhao@intel.com> Change-Id: If17d12861f562dc0d6c98a5c91a9d3c0360ca2c9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42835 Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-28soc/intel/tigerlake: Implement soc_get_pmc_mux_device()Tim Wawrzynczak
The ChromeOS EC is adding new entries to its USBC.CONx devices (see later patch), and it needs to get access to the PMC.MUX device so that its ACPI path can be retrieved. This provides a weak function to return NULL for all Intel SoCs except for Tiger Lake, which locates the device if it is found in the devicetree. Change-Id: I3fe3ef25e9fac8748142f5b1bd870c9bc70b97ff Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40948 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-26drivers/intel/pmc_mux/con: Add new PMC MUX & CON chip driversTim Wawrzynczak
The Tiger Lake PMC device has a MUX device which is expected to be exposed in ACPI tables. The MUX device simply has a _HID and _DDN. The CON devices link the USB-2 and USB-3 port numbers (from SoC point of view) to the physical connector. They also have orientation options for the sideband (SBU) and USB High Speed signals (HSL), meaning that they can be fixed (i.e, another device besides the SoC controls the orientation, and effectively the SoC is following only CC1 or CC2 orientation), or they can follow the CC lines. BUG=b:151646486 TEST=Tested with next patch in series (see TEST line there) Change-Id: I8b5f275907601960410459aa669e257b80ff3dc2 Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Signed-off-by: John Zhao <john.zhao@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40862 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>