diff options
Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-spi-sh-msiof-fixes.patch')
| -rw-r--r-- | meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-spi-sh-msiof-fixes.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-spi-sh-msiof-fixes.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-spi-sh-msiof-fixes.patch new file mode 100644 index 0000000..d8806ba --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-spi-sh-msiof-fixes.patch @@ -0,0 +1,33 @@ +From 32db8cc989d7dfdf0315d286b06234e008e56d7c Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Sun, 15 May 2016 21:53:13 +0300 +Subject: [PATCH] spi: sh-msiof: fixes + +speed up polling of CTR register + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +--- + drivers/spi/spi-sh-msiof.c | 30 ++++++++++++++++++++---------- + 1 file changed, 20 insertions(+), 10 deletions(-) + +diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c +index d096f5a..6817304 100644 +--- a/drivers/spi/spi-sh-msiof.c ++++ b/drivers/spi/spi-sh-msiof.c +@@ -228,11 +228,11 @@ static int sh_msiof_modify_ctr_wait(struct sh_msiof_spi_priv *p, + data |= set; + sh_msiof_write(p, CTR, data); + +- for (k = 100; k > 0; k--) { ++ for (k = 1000; k > 0; k--) { + if ((sh_msiof_read(p, CTR) & mask) == set) + break; + +- udelay(10); ++ udelay(1); + } + + return k > 0 ? 0 : -ETIMEDOUT; +-- +1.9.1 + |