From: Andy Shevchenko Date: Tue, 24 Apr 2018 15:00:10 +0000 (+0300) Subject: mfd: intel-lpss: Program REMAP register in PIO mode X-Git-Tag: v4.18-rc1~61^2~14 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d28b62520830b2d0bffa2d98e81afc9f5e537e8b;p=linux.git mfd: intel-lpss: Program REMAP register in PIO mode 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 Signed-off-by: Lee Jones --- diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c index 9e545eb6e8b4..4bcf117a7ba8 100644 --- a/drivers/mfd/intel-lpss.c +++ b/drivers/mfd/intel-lpss.c @@ -275,11 +275,11 @@ static void intel_lpss_init_dev(const struct intel_lpss *lpss) 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);