On Wed, 2016-10-12 at 10:12 -0700, Azhar Shaikh wrote:
> Commit 41a3da2b8e163 ("mfd: intel-lpss: Save register context on
> suspend") saved the register context while going to suspend and
> also put the device in reset state.
>
> Due to the resetting of device, system cannot enter S3/S0ix
> states when no_console_suspend flag is enabled. The system
> and serial console both hang. The resetting of device is not
> needed while going to suspend. Hence remove this code.
>
> Fixes: 41a3da2b8e163 ("mfd: intel-lpss: Save register context on
> suspend")
> Signed-off-by: Azhar Shaikh <azhar.sha...@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
> ---
> drivers/mfd/intel-lpss.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c
> index 41b1138..70c646b 100644
> --- a/drivers/mfd/intel-lpss.c
> +++ b/drivers/mfd/intel-lpss.c
> @@ -502,9 +502,6 @@ int intel_lpss_suspend(struct device *dev)
> for (i = 0; i < LPSS_PRIV_REG_COUNT; i++)
> lpss->priv_ctx[i] = readl(lpss->priv + i * 4);
>
> - /* Put the device into reset state */
> - writel(0, lpss->priv + LPSS_PRIV_RESETS);
> -
> return 0;
> }
> EXPORT_SYMBOL_GPL(intel_lpss_suspend);
--
Andy Shevchenko <andriy.shevche...@linux.intel.com>
Intel Finland Oy
