The ICH GPIO driver does not work correctly at present. This series tidies things up and fixes a few bugs.
One issue remaining is that reading from output GPIOs does not work - it always returns 0.
Simon Glass (10): x86: Return -1 when reading a PCI config register fails x86: minnowmax: Add access to GPIOs E0, E1, E2 dm: pci: Allow a PCI bus to be found without an alias dm: pci: Add a comment to help find pci_hose_read_config_byte, etc. x86: minnowmax: Correct pad-offset value for host_en1 gpio: Report errors when GPIOs cannot be read x86: gpio: Correct calls to _ich6_gpio_set_direction() x86: gpio: Tidy up gpio_ich6_get_base() and callers WIP: x86: gpio: Handle the case where reading a GPIO fails WIP: x86: gpio: Make sure that output GPIOs can be read
arch/x86/cpu/pci.c | 9 ++++++--- arch/x86/dts/minnowmax.dts | 29 ++++++++++++++++++++++++++++- common/cmd_gpio.c | 34 +++++++++++++++++++++++++++------- drivers/gpio/intel_ich6_gpio.c | 38 +++++++++++++++++++++++++++++++------- drivers/pci/pci-uclass.c | 22 +++++++++++++++++++--- include/pci.h | 1 + 6 files changed, 112 insertions(+), 21 deletions(-)