[PATCH v2] toshiba_acpi: Adapt kbd_bl_timeout_store to the new kbd type

[Azael Avalos]

With the introduccion of the new keyboard backlight
implementation, the *_timeout_store function is
broken, as it only supports the first kbd_type.

This patch adapt such function for the new kbd_type,
as well as convert from using sscanf to kstrtoint.

Signed-off-by: Azael Avalos <***@gmail.com>
---
Changes since v1:
- Check for timeout values depending on kbd_type
- Removed some misleading comments

Note: I'll be out of town until the next weekend,
in case something else needs to be changed, I'll
catch up whenever I'm back.

drivers/platform/x86/toshiba_acpi.c | 38 ++++++++++++++++++++++++++++---------
1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 5d509ea..f360dac 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1453,18 +1453,38 @@ static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
- int time = -1;
+ int time;
+ int ret;

- if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
- return -EINVAL;
+ ret = kstrtoint(buf, 0, &time);
+ if (ret)
+ return ret;

- /* Set the Keyboard Backlight Timeout: 0-60 seconds */
- if (time != -1 && toshiba->kbd_time != time) {
+ /* Check for supported values depending on kbd_type */
+ if (toshiba->kbd_type == 1) {
+ if (time < 0 || time > 60)
+ return -EINVAL;
+ } else if (toshiba->kbd_type == 2) {
+ if (time < 1 || time > 60)
+ return -EINVAL;
+ }
+
+ /* Set the Keyboard Backlight Timeout */
+
+ /* Only make a change if the actual timeout has changed */
+ if (toshiba->kbd_time != time) {
+ /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
time = time << HCI_MISC_SHIFT;
- time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
- time + 1 : time + 2;
- if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
- return -EIO;
+ /* OR the "base time" to the actual method format */
+ if (toshiba->kbd_type == 1)
+ time |= SCI_KBD_MODE_FNZ;
+ else if (toshiba->kbd_type == 2)
+ time |= SCI_KBD_MODE_AUTO;
+
+ ret = toshiba_kbd_illum_status_set(toshiba, time);
+ if (ret)
+ return ret;
+
toshiba->kbd_time = time >> HCI_MISC_SHIFT;
}

[Darren Hart]

Hi Azael,

Post by Azael Avalos
With the introduccion of the new keyboard backlight

introduction

Post by Azael Avalos
implementation, the *_timeout_store function is
broken, as it only supports the first kbd_type.
This patch adapt such function for the new kbd_type,

adapts

Post by Azael Avalos
as well as convert from using sscanf to kstrtoint.

converts
Functional changes look good to me, thank you.

I've made a couple minor formatting corrections in the interest of time. In
the future, please check your patches with checkpatch.pl and consider using a
spell checker in your $EDITOR for commit messages. Using git am to apply your
own patches would also have caught the whitespace error.
Queued to testing, I'll push to for-next tomorrow(ish), which should give us
enough time to make 3.18 since Linus pushed out the merge window a bit.

Post by Azael Avalos
---
- Check for timeout values depending on kbd_type
- Removed some misleading comments
Note: I'll be out of town until the next weekend,
in case something else needs to be changed, I'll
catch up whenever I'm back.
drivers/platform/x86/toshiba_acpi.c | 38 ++++++++++++++++++++++++++++---------
1 file changed, 29 insertions(+), 9 deletions(-)
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 5d509ea..f360dac 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -1453,18 +1453,38 @@ static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
const char *buf, size_t count)
{
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
- int time = -1;
+ int time;
+ int ret;
- if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
- return -EINVAL;
+ ret = kstrtoint(buf, 0, &time);
+ if (ret)
+ return ret;
- /* Set the Keyboard Backlight Timeout: 0-60 seconds */
- if (time != -1 && toshiba->kbd_time != time) {
+ /* Check for supported values depending on kbd_type */
+ if (toshiba->kbd_type == 1) {
+ if (time < 0 || time > 60)
+ return -EINVAL;
+ } else if (toshiba->kbd_type == 2) {
+ if (time < 1 || time > 60)
+ return -EINVAL;
+ }
+
+ /* Set the Keyboard Backlight Timeout */
+

^ Tab at beginning of otherwise empty line.

Thanks,

Darren

Post by Azael Avalos
+ /* Only make a change if the actual timeout has changed */
+ if (toshiba->kbd_time != time) {
+ /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
time = time << HCI_MISC_SHIFT;
- time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
- time + 1 : time + 2;
- if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
- return -EIO;
+ /* OR the "base time" to the actual method format */
+ if (toshiba->kbd_type == 1)
+ time |= SCI_KBD_MODE_FNZ;
+ else if (toshiba->kbd_type == 2)
+ time |= SCI_KBD_MODE_AUTO;
+
+ ret = toshiba_kbd_illum_status_set(toshiba, time);
+ if (ret)
+ return ret;
+
toshiba->kbd_time = time >> HCI_MISC_SHIFT;
}
--
2.0.0