blackbird-obmc-linux/drivers, branch dev-5.0-raptor-04-16-2019

hwmon/aspeed-pwm-tacho: Increase tachometer read time

2019-05-10T21:20:52+00:00

On the Blackbird desk-side systems we expect users will be running large fans very slowly. The current tachometer reading drops to zero under those conditions, resulting in failed fan detection systems kicking in. Increase the tachometer read time to allow for slower fans to return a valid speed. This does make read slower, but more advance fan control software should be able to compensate via e.g. PID loops. Signed-off-by: Timothy Pearson

hwmon/aspeed-pwm-tacho: Return 0 RPM if fan disconnected / failed

2019-05-10T21:18:33+00:00

Having a tachometer read return an -ETIMEDOUT error condition instead of 0 RPM due to a disconnected or failed fan is highly unexpected, and depending on higher level software can cause application failures. Return 0 RPM if tachometer cannot be read. This should trigger the same error paths in any sane fan control implementation without requiring special handling for the AST2x00 devices. Signed-off-by: Timothy Pearson

pinctrl/aspeed: Remove COND2 condition from GPIOR1

2019-05-03T09:47:38+00:00

On Blackbird hardware, ball T19 is set to FWSPICS2# even when COND2 (SCU94[1:0] == 0x0) is not met. Since COND2 is listed as a requirement for FWSPICS2#, the pinmux controller can choose to set SCU88[25]=1 even when GPIOR1 is hogged. Due to the documentation error, this results in ball T19 assigned to FWSPICS2# instead of GPIOR1, leading to a failure of the Blackbird platform. Tested on Blackbird harwdare; GPIOR1 functions normally with this patch and does not reliably function without it. Signed-off-by: Timothy Pearson

aspeed/pinctrl: Fix simultaneous DVO and serial outputs on AST2500 devices

2019-05-03T05:07:01+00:00

There appears to be a significant error in the pinmux table starting on page 127 of the AST2500 datasheet v1.6. Specifically, the COND2 (DVO) requirement is incorrectly applied to multiple digital video input (DVI) muxed pins, and no DVI-specific condition is provided. This results in the serial devices incorrectly overriding the DVO pinmuxes and disabling the DVO pins. Create a new condition code (COND6) for DVI enable, and update the most seriously affected pins to use the new condition code. Signed-off-by: Timothy Pearson

aspeed/pinctrl: Fix simultaneous RS-232 / PWM and DVO outputs on AST2500 devices

2019-05-03T05:07:00+00:00

There appears to be a small error in the pinmux table on pages 130 and 131 of the AST2500 datasheet v1.6. Specifically, the COND2 requirement used to mux the surrounding pins to DVI was inadvertently replicated to pins V1, W1, V2, and W2 in the table, which do not incorporate DVI functionality. As a result of this error, both serial TX lines and the PWM 0/1 outputs were overriding the VPO pinmux settings when VPO was enabled in the pinmux hogs. This patch has been verified to function on Blackbird hardware. Both serial TXD pins and PWM0/PWM1 were functionally tested with SCU94[1:0] set to 0x1. Signed-off-by: Timothy Pearson

drm/aspeed: Add DVO output option to GFX driver

2019-05-02T21:04:17+00:00

The AST2500 offers an alternate GFX output mode over DVO. Enable DVO or VGA output mode conditionally based on two new device tree properties, output-vga and output-dvo. Signed-off-by: Timothy Pearson

drm/aspeed: Preserve DVO configuration bits during initialization

2019-05-02T20:54:16+00:00

GFX064 contains DVO enable and mode bits. These are hardware specific, configured via the pinmux from the DT, and should not be cleared during startup. Signed-off-by: Timothy Pearson

Add missing license declaration call to common OCC file This fixes symbol access errors and taint when built as a module

2019-04-19T11:33:16+00:00

Signed-off-by: Timothy Pearson

hwmon: (pmbus/isl68137): Update ISL68137 to upstream

2019-04-19T02:29:09+00:00

Apply differences from hwmon review to bring the driver code to the same point. There were some key differences regarding attribute placement from the review, beyond the normal cleanup. OpenBMC-Staging-Count: 1 Signed-off-by: Patrick Venture [AJ: Rework subject] Signed-off-by: Andrew Jeffery

pmbus: support for custom sysfs attributes

2019-04-19T02:27:48+00:00

This patch makes it possible to pass custom struct attribute_group array via the pmbus_driver_info struct so that those can be added to the attribute groups passed to hwmon_device_register_with_groups(). This makes it possible to register custom sysfs attributes by PMBUS drivers similar to how you can do this with most other busses/classes. Signed-off-by: Krzysztof Adamski Signed-off-by: Guenter Roeck Signed-off-by: Andrew Jeffery