| Message ID | 20221124195737.390729-1-hdegoede@redhat.com |
|---|---|
| Headers | show |
| Series | platform/x86: int3472/discrete: Make it work with IPU6 | expand |
Hi, Sorry this series was sent to the wrong people / list. I will resend it to the right people now. Please ignore. Regards, Hans On 11/24/22 20:57, Hans de Goede wrote: > Hi All, > > Here is a small set of patches to make the int3472/discrete code > work with the sensor drivers bundled with the (unfortunately out of tree) > IPU6 driver. > > There are parts of the out of tree IPU6 code, like the sensor drivers, > which can be moved to the mainline and I do plan to work on this at some > point and then some of this might need to change. But for now the goal is > to make the out of tree driver work with standard mainline distro kernels > through e.g. dkms. Otherwise users need to run a patched kernel just for > a couple of small differences. > > This is basically a rewrite of this patch: > https://github.com/intel/ipu6-drivers/blob/master/patch/int3472-support-independent-clock-and-LED-gpios-5.17%2B.patch > > Wich users who want to use the IPU6 driver so far have had to manually > apply to their kernels which is quite inconvenient. > > This rewrite makes 2 significant changes: > > 1. Don't break things on IPU3 platforms > > 2. Instead of extending the int3472_sensor_configs[] quirks table for each > model which needs "clken" and "pled" GPIOs, do this based on matching > the ACPI HID of the ACPI device describing the sensor. > > The need for these GPIOs is a property of the specific sensor driver which > binds using this same HID, so by using this we avoid having to extend the > int3472_sensor_configs[] quirks table all the time. > > This allows roling back the behavior to at least use a clk-framework > clk instead of clken GPIO on a per sensor(-driver) basis as we mainline > the sensor drivers, assuming that the drivers are switched over to the > clk framework as part of their mainlining. > > A bigger question is what to do with the privacy-led GPIO on IPU3 > we so far have turned the LED on/off at the same as te clock, > but at least on some IPU6 models this won't work, because they only > have a privacy-led GPIO and no clk_en GPIO (there is no sensor > clk-control at all on some models). > > I think we should maybe move all models, including IPU3 based > models over to using a normal GPIO for controlling the privacy-led > to make things consistent. > > And likewise (eventually) completely drop the "clken" GPIO this > patch series introduces (with some sensors) and instead always model > this through the clk-framework. > > Regards, > > Hans > > > Hans de Goede (3): > platform/x86: int3472/discrete: Refactor GPIO to sensor mapping > platform/x86: int3472/discrete: Get the polarity from the _DSM entry > platform/x86: int3472/discrete: Add support for sensor-drivers which > expect clken + pled GPIOs > > drivers/platform/x86/intel/int3472/common.h | 2 +- > drivers/platform/x86/intel/int3472/discrete.c | 92 ++++++++++++++++--- > 2 files changed, 78 insertions(+), 16 deletions(-) >
Hi All, Here is a small set of patches to make the int3472/discrete code work with the sensor drivers bundled with the (unfortunately out of tree) IPU6 driver. There are parts of the out of tree IPU6 code, like the sensor drivers, which can be moved to the mainline and I do plan to work on this at some point and then some of this might need to change. But for now the goal is to make the out of tree driver work with standard mainline distro kernels through e.g. dkms. Otherwise users need to run a patched kernel just for a couple of small differences. This is basically a rewrite of this patch: https://github.com/intel/ipu6-drivers/blob/master/patch/int3472-support-independent-clock-and-LED-gpios-5.17%2B.patch Wich users who want to use the IPU6 driver so far have had to manually apply to their kernels which is quite inconvenient. This rewrite makes 2 significant changes: 1. Don't break things on IPU3 platforms 2. Instead of extending the int3472_sensor_configs[] quirks table for each model which needs "clken" and "pled" GPIOs, do this based on matching the ACPI HID of the ACPI device describing the sensor. The need for these GPIOs is a property of the specific sensor driver which binds using this same HID, so by using this we avoid having to extend the int3472_sensor_configs[] quirks table all the time. This allows roling back the behavior to at least use a clk-framework clk instead of clken GPIO on a per sensor(-driver) basis as we mainline the sensor drivers, assuming that the drivers are switched over to the clk framework as part of their mainlining. A bigger question is what to do with the privacy-led GPIO on IPU3 we so far have turned the LED on/off at the same as te clock, but at least on some IPU6 models this won't work, because they only have a privacy-led GPIO and no clk_en GPIO (there is no sensor clk-control at all on some models). I think we should maybe move all models, including IPU3 based models over to using a normal GPIO for controlling the privacy-led to make things consistent. And likewise (eventually) completely drop the "clken" GPIO this patch series introduces (with some sensors) and instead always model this through the clk-framework. Regards, Hans Hans de Goede (3): platform/x86: int3472/discrete: Refactor GPIO to sensor mapping platform/x86: int3472/discrete: Get the polarity from the _DSM entry platform/x86: int3472/discrete: Add support for sensor-drivers which expect clken + pled GPIOs drivers/platform/x86/intel/int3472/common.h | 2 +- drivers/platform/x86/intel/int3472/discrete.c | 92 ++++++++++++++++--- 2 files changed, 78 insertions(+), 16 deletions(-)