2013/11/14 Imre Deak <imre.deak@xxxxxxxxx>:
> In intel_display_capture_error_state we use HAS_POWER_WELL to check if
> we are running on Haswell/Broadwell when accessing HSW_PWR_WELL_DRIVER
> which is specific to these platforms. Future platforms with power wells
> don't have this register, so HAS_POWER_WELL won't work there any more.
> Use IS_HASWELL/IS_BROADWELL instead.
>
> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_display.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 2df2366..bb5e4e9 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11370,7 +11370,7 @@ intel_display_capture_error_state(struct drm_device *dev)
> if (error == NULL)
> return NULL;
>
> - if (HAS_POWER_WELL(dev))
> + if (IS_HASWELL(dev) || IS_BROADWELL(dev))
> error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
>
> for_each_pipe(i) {
> @@ -11441,7 +11441,7 @@ intel_display_print_error_state(struct drm_i915_error_state_buf *m,
> return;
>
> err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
> - if (HAS_POWER_WELL(dev))
> + if (IS_HASWELL(dev) | IS_BROADWELL(dev))
Please use the logical OR, instead of the bit operation.
Thanks,
Paulo
> err_printf(m, "PWR_WELL_CTL2: %08x\n",
> error->power_well_driver);
> for_each_pipe(i) {
> --
> 1.8.4
>
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--
Paulo Zanoni
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