This is a note to let you know that I've just added the patch titled
spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
spi-pxa2xx-clear-all-rft-bits-in-reset_sccr1-on-intel-quark.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 152bc19e2fc2b7fce7ffbc2a9cea94b147223702 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Wed, 6 Jul 2016 12:08:11 +0300
Subject: spi: pxa2xx: Clear all RFT bits in reset_sccr1() on Intel Quark
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
commit 152bc19e2fc2b7fce7ffbc2a9cea94b147223702 upstream.
It seems the commit e5262d0568dc ("spi: spi-pxa2xx: SPI support for Intel Quark
X1000") misses one place to be adapted for Intel Quark, i.e. in reset_sccr1().
Clear all RFT bits when call reset_sccr1() on Intel Quark.
Fixes: e5262d0568dc ("spi: spi-pxa2xx: SPI support for Intel Quark X1000")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi-pxa2xx.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -548,7 +548,14 @@ static void reset_sccr1(struct driver_da
u32 sccr1_reg;
sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1;
- sccr1_reg &= ~SSCR1_RFT;
+ switch (drv_data->ssp_type) {
+ case QUARK_X1000_SSP:
+ sccr1_reg &= ~QUARK_X1000_SSCR1_RFT;
+ break;
+ default:
+ sccr1_reg &= ~SSCR1_RFT;
+ break;
+ }
sccr1_reg |= chip->threshold;
pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg);
}
Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
queue-4.4/gpio-intel-mid-remove-potentially-harmful-code.patch
queue-4.4/spi-pxa2xx-clear-all-rft-bits-in-reset_sccr1-on-intel-quark.patch
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