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platform/x86: ideapad-laptop: convert ACPI helpers to return -EIO in case of failure
ACPI helpers returned -1 in case of failure. Convert these functions to return appropriate error codes, and convert their users to propagate these error codes accordingly. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Link: https://lore.kernel.org/r/20210203215403.290792-14-pobrn@protonmail.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Barnabás Pőcze
Hans de Goede
parent
654324c45d
commit
7be193e368
@ -126,7 +126,7 @@ static int read_method_int(acpi_handle handle, const char *method, int *val)
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status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
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if (ACPI_FAILURE(status)) {
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*val = -1;
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return -1;
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return -EIO;
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}
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*val = result;
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return 0;
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@ -147,7 +147,7 @@ static int method_int1(acpi_handle handle, char *method, int cmd)
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acpi_status status;
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status = acpi_execute_simple_method(handle, method, cmd);
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return ACPI_FAILURE(status) ? -1 : 0;
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return ACPI_FAILURE(status) ? -EIO : 0;
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}
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static int method_dytc(acpi_handle handle, int cmd, int *ret)
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@ -166,7 +166,7 @@ static int method_dytc(acpi_handle handle, int cmd, int *ret)
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if (ACPI_FAILURE(status)) {
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*ret = -1;
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return -1;
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return -EIO;
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}
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*ret = result;
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return 0;
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@ -188,7 +188,7 @@ static int method_vpcr(acpi_handle handle, int cmd, int *ret)
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if (ACPI_FAILURE(status)) {
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*ret = -1;
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return -1;
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return -EIO;
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}
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*ret = result;
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return 0;
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@ -210,56 +210,62 @@ static int method_vpcw(acpi_handle handle, int cmd, int data)
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status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL);
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if (status != AE_OK)
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return -1;
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return -EIO;
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return 0;
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}
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static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data)
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{
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int val;
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unsigned long int end_jiffies;
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int val, err;
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if (method_vpcw(handle, 1, cmd))
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return -1;
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err = method_vpcw(handle, 1, cmd);
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if (err)
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return err;
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end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1;
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while (time_before(jiffies, end_jiffies)) {
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schedule();
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if (method_vpcr(handle, 1, &val))
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return -1;
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err = method_vpcr(handle, 1, &val);
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if (err)
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return err;
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if (val == 0) {
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if (method_vpcr(handle, 0, &val))
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return -1;
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err = method_vpcr(handle, 0, &val);
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if (err)
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return err;
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*data = val;
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return 0;
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}
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}
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acpi_handle_err(handle, "timeout in %s\n", __func__);
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return -1;
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return -ETIMEDOUT;
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}
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static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
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{
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int val;
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unsigned long int end_jiffies;
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int val, err;
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if (method_vpcw(handle, 0, data))
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return -1;
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if (method_vpcw(handle, 1, cmd))
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return -1;
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err = method_vpcw(handle, 0, data);
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if (err)
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return err;
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err = method_vpcw(handle, 1, cmd);
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if (err)
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return err;
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end_jiffies = jiffies + msecs_to_jiffies(IDEAPAD_EC_TIMEOUT) + 1;
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while (time_before(jiffies, end_jiffies)) {
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schedule();
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if (method_vpcr(handle, 1, &val))
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return -1;
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err = method_vpcr(handle, 1, &val);
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if (err)
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return err;
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if (val == 0)
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return 0;
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}
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acpi_handle_err(handle, "timeout in %s\n", __func__);
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return -1;
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return -ETIMEDOUT;
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}
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/*
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@ -392,8 +398,8 @@ static ssize_t store_ideapad_cam(struct device *dev,
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if (sscanf(buf, "%i", &state) != 1)
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return -EINVAL;
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ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
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if (ret < 0)
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return -EIO;
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if (ret)
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return ret;
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return count;
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}
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@ -425,8 +431,8 @@ static ssize_t store_ideapad_fan(struct device *dev,
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if (state < 0 || state > 4 || state == 3)
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return -EINVAL;
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ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state);
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if (ret < 0)
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return -EIO;
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if (ret)
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return ret;
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return count;
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}
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@ -458,8 +464,8 @@ static ssize_t __maybe_unused touchpad_store(struct device *dev,
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return ret;
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ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_TOUCHPAD, state);
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if (ret < 0)
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return -EIO;
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if (ret)
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return ret;
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return count;
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}
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@ -492,8 +498,8 @@ static ssize_t conservation_mode_store(struct device *dev,
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ret = method_int1(priv->adev->handle, "SBMC", state ?
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BMCMD_CONSERVATION_ON :
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BMCMD_CONSERVATION_OFF);
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if (ret < 0)
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return -EIO;
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if (ret)
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return ret;
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return count;
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}
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@ -530,8 +536,8 @@ static ssize_t fn_lock_store(struct device *dev,
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ret = method_int1(priv->adev->handle, "SALS", state ?
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HACMD_FNLOCK_ON :
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HACMD_FNLOCK_OFF);
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if (ret < 0)
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return -EIO;
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if (ret)
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return ret;
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return count;
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}
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@ -1022,7 +1028,8 @@ static void ideapad_check_special_buttons(struct ideapad_private *priv)
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{
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unsigned long bit, value;
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read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
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if (read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value))
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return;
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for_each_set_bit (bit, &value, 16) {
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switch (bit) {
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@ -1050,22 +1057,27 @@ static int ideapad_backlight_get_brightness(struct backlight_device *blightdev)
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{
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struct ideapad_private *priv = bl_get_data(blightdev);
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unsigned long now;
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int err;
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if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
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return -EIO;
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err = read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
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if (err)
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return err;
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return now;
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}
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static int ideapad_backlight_update_status(struct backlight_device *blightdev)
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{
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struct ideapad_private *priv = bl_get_data(blightdev);
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int err;
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if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
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blightdev->props.brightness))
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return -EIO;
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if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
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blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1))
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return -EIO;
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err = write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
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blightdev->props.brightness);
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if (err)
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return err;
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err = write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
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blightdev->props.power != FB_BLANK_POWERDOWN);
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if (err)
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return err;
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return 0;
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}
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@ -1080,13 +1092,17 @@ static int ideapad_backlight_init(struct ideapad_private *priv)
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struct backlight_device *blightdev;
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struct backlight_properties props;
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unsigned long max, now, power;
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int err;
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if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max))
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return -EIO;
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if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
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return -EIO;
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if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
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return -EIO;
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err = read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max);
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if (err)
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return err;
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err = read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
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if (err)
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return err;
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err = read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power);
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if (err)
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return err;
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memset(&props, 0, sizeof(struct backlight_properties));
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props.max_brightness = max;
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