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 | 16 |
1 files changed, 13 insertions, 3 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 index d8806ba..411d0ee 100644 --- 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 @@ -3,7 +3,8 @@ 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 +speed up polling of CTR register and allow scheduling instead of +busy loop Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> --- @@ -19,15 +20,24 @@ index d096f5a..6817304 100644 sh_msiof_write(p, CTR, data); - for (k = 100; k > 0; k--) { -+ for (k = 1000; k > 0; k--) { ++ for (k = 100000; k > 0; k--) { if ((sh_msiof_read(p, CTR) & mask) == set) break; - udelay(10); -+ udelay(1); ++ usleep_range(1, 2); } return k > 0 ? 0 : -ETIMEDOUT; +@@ -295,7 +295,7 @@ static void sh_msiof_spi_reset_regs(struct sh_msiof_spi_priv *p) + if (!(sh_msiof_read(p, CTR) & mask)) + break; + +- udelay(10); ++ usleep_range(10, 20); + } + } + -- 1.9.1 |