diff options
Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0065-gpio-max732x-set-gpio-ouput-low-at-init.patch')
| -rw-r--r-- | meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0065-gpio-max732x-set-gpio-ouput-low-at-init.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0065-gpio-max732x-set-gpio-ouput-low-at-init.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0065-gpio-max732x-set-gpio-ouput-low-at-init.patch new file mode 100644 index 0000000..ff9661d --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0065-gpio-max732x-set-gpio-ouput-low-at-init.patch @@ -0,0 +1,32 @@ +From 3c58ea643c31273b467400c04f3b1ed04fc0da2d Mon Sep 17 00:00:00 2001 +From: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +Date: Mon, 3 Jul 2017 02:43:21 +0300 +Subject: [PATCH] gpio: max732x: set gpio ouput-low at init + +Set all gpio output-low at init state instead +chip defaults. +This allows to avoid preserved values during resaet + +Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com> +--- + drivers/gpio/gpio-max732x.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c +index b6fc8c5..4a2669f 100644 +--- a/drivers/gpio/gpio-max732x.c ++++ b/drivers/gpio/gpio-max732x.c +@@ -680,6 +680,10 @@ static int max732x_probe(struct i2c_client *client, + + mutex_init(&chip->lock); + ++ /* set all ports output-low at init state */ ++ max732x_writeb(chip, 0, 0); ++ max732x_writeb(chip, 1, 0); ++ + ret = max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]); + if (ret) + goto out_failed; +-- +1.9.1 + |