4.17-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko andriy.shevchenko@linux.intel.com
commit d28b62520830b2d0bffa2d98e81afc9f5e537e8b upstream.
According to documentation REMAP register has to be programmed in either DMA or PIO mode of the slice.
Move the DMA capability check below to let REMAP register be programmed in PIO mode.
Cc: stable@vger.kernel.org # 4.3+ Fixes: 4b45efe85263 ("mfd: Add support for Intel Sunrisepoint LPSS devices") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mfd/intel-lpss.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/mfd/intel-lpss.c +++ b/drivers/mfd/intel-lpss.c @@ -275,11 +275,11 @@ static void intel_lpss_init_dev(const st
intel_lpss_deassert_reset(lpss);
+ intel_lpss_set_remap_addr(lpss); + if (!intel_lpss_has_idma(lpss)) return;
- intel_lpss_set_remap_addr(lpss); - /* Make sure that SPI multiblock DMA transfers are re-enabled */ if (lpss->type == LPSS_DEV_SPI) writel(value, lpss->priv + LPSS_PRIV_SSP_REG);