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Commit 49d98a8e authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
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mfd: intel-lpss: Program REMAP register in PIO mode 



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: 4b45efe8 ("mfd: Add support for Intel Sunrisepoint LPSS devices")
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 099fae46

drivers/mfd/intel-lpss.c

+2 −2
Original line number Diff line number Diff line
@@ -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);