diff options
Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0067-ti-st-use-proper-way-to-get-shutdown-gpio.patch')
| -rw-r--r-- | meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0067-ti-st-use-proper-way-to-get-shutdown-gpio.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0067-ti-st-use-proper-way-to-get-shutdown-gpio.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0067-ti-st-use-proper-way-to-get-shutdown-gpio.patch new file mode 100644 index 0000000..4d99054 --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0067-ti-st-use-proper-way-to-get-shutdown-gpio.patch @@ -0,0 +1,61 @@ +From 36a9b5317c58a1cdcb8a6fa05416efd524480fbe Mon Sep 17 00:00:00 2001 +From: Andrey Gusakov <andrey.gusakov@cogentembedded.com> +Date: Wed, 2 Aug 2017 17:39:56 +0300 +Subject: [PATCH] ti-st: use proper way to get shutdown gpio + +Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com> +--- + drivers/misc/ti-st/st_kim.c | 23 ++++++++++++++++++----- + 1 file changed, 18 insertions(+), 5 deletions(-) + +diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c +index cb2734568471..03b21d314b0b 100644 +--- a/drivers/misc/ti-st/st_kim.c ++++ b/drivers/misc/ti-st/st_kim.c +@@ -32,6 +32,8 @@ + #include <linux/sched.h> + #include <linux/sysfs.h> + #include <linux/tty.h> ++#include <linux/of_device.h> ++#include <linux/of_gpio.h> + + #include <linux/skbuff.h> + #include <linux/ti_wilink_st.h> +@@ -749,18 +751,29 @@ static struct ti_st_plat_data *get_platform_data(struct device *dev) + + dt_pdata = kzalloc(sizeof(*dt_pdata), GFP_KERNEL); + +- if (!dt_pdata) ++ if (!dt_pdata) { + pr_err("Can't allocate device_tree platform data\n"); ++ return NULL; ++ } + + dt_property = of_get_property(np, "dev_name", &len); +- if (dt_property) +- memcpy(&dt_pdata->dev_name, dt_property, len); +- of_property_read_u32(np, "nshutdown_gpio", +- (u32 *)&dt_pdata->nshutdown_gpio); ++ if (!dt_property) { ++ dev_err(dev, "failed to get tty name\n"); ++ goto err; ++ } ++ memcpy(&dt_pdata->dev_name, dt_property, len); ++ dt_pdata->nshutdown_gpio = of_get_named_gpio(np, "shutdown-gpios", 0); ++ if (!gpio_is_valid(dt_pdata->nshutdown_gpio)) { ++ dev_err(dev, "failed to get shutdown gpio\n"); ++ goto err; ++ } + of_property_read_u32(np, "flow_cntrl", (u32 *)&dt_pdata->flow_cntrl); + of_property_read_u32(np, "baud_rate", (u32 *)&dt_pdata->baud_rate); + + return dt_pdata; ++err: ++ kfree(dt_pdata); ++ return NULL; + } + + static struct dentry *kim_debugfs_dir; +-- +2.13.0 + |