static int kcal_ctrl_probe(struct platform_device *pdev)
{
int ret;
struct kcal_lut_data *lut_data;
lut_data = devm_kzalloc(&pdev->dev, sizeof(*lut_data), GFP_KERNEL);
if (!lut_data) {
pr_err("%s: failed to allocate memory for lut_data\n",
__func__);
return -ENOMEM;
}
ext_mdss_mdp_pcc_config = (void *)kallsyms_lookup_name("mdss_mdp_pcc_config");
ext_mdss_mdp_igc_lut_config = (void *)kallsyms_lookup_name("mdss_mdp_igc_lut_config");
ext_mdss_mdp_pa_v2_config = (void *)kallsyms_lookup_name("mdss_mdp_pa_v2_config");
ext_mdss_mdp_pa_config = (void *)kallsyms_lookup_name("mdss_mdp_pa_config");
platform_set_drvdata(pdev, lut_data);
lut_data->enable = 0x1;
lut_data->red = DEF_PCC;
lut_data->green = DEF_PCC;
lut_data->blue = DEF_PCC;
lut_data->minimum = 0x23;
lut_data->invert = 0x0;
lut_data->hue = 0x0;
lut_data->sat = DEF_PA;
lut_data->val = DEF_PA;
lut_data->cont = DEF_PA;
mdss_mdp_kcal_update_pcc(lut_data);
mdss_mdp_kcal_update_pa(lut_data);
mdss_mdp_kcal_update_igc(lut_data);
mdss_mdp_kcal_display_commit();
ret = device_create_file(&pdev->dev, &dev_attr_kcal);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_min);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_enable);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_invert);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_sat);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_hue);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_val);
ret |= device_create_file(&pdev->dev, &dev_attr_kcal_cont);
if (ret) {
pr_err("%s: unable to create sysfs entries\n", __func__);
return ret;
}
return 0;
}
static ssize_t kcal_cont_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int kcal_cont, r;
struct kcal_lut_data *lut_data = dev_get_drvdata(dev);
r = kstrtoint(buf, 10, &kcal_cont);
if ((r) || (kcal_cont < 128 || kcal_cont > 383))
return -EINVAL;
lut_data->cont = kcal_cont;
mdss_mdp_kcal_update_pa(lut_data);
mdss_mdp_kcal_display_commit();
return count;
}
static ssize_t kcal_min_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int kcal_min, r;
struct kcal_lut_data *lut_data = dev_get_drvdata(dev);
r = kstrtoint(buf, 10, &kcal_min);
if ((r) || (kcal_min < 1 || kcal_min > 256))
return -EINVAL;
lut_data->minimum = kcal_min;
mdss_mdp_kcal_update_pcc(lut_data);
mdss_mdp_kcal_display_commit();
return count;
}
static ssize_t kcal_invert_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int kcal_invert, r;
struct kcal_lut_data *lut_data = dev_get_drvdata(dev);
r = kstrtoint(buf, 10, &kcal_invert);
if ((r) || (kcal_invert != 0 && kcal_invert != 1) ||
(lut_data->invert == kcal_invert))
return -EINVAL;
lut_data->invert = kcal_invert;
mdss_mdp_kcal_update_pcc(lut_data);
mdss_mdp_kcal_display_commit();
return count;
}
static ssize_t kcal_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int kcal_r, kcal_g, kcal_b, r;
struct kcal_lut_data *lut_data = dev_get_drvdata(dev);
r = sscanf(buf, "%d %d %d", &kcal_r, &kcal_g, &kcal_b);
if ((r != 3) || (kcal_r < 1 || kcal_r > 256) ||
(kcal_g < 1 || kcal_g > 256) || (kcal_b < 1 || kcal_b > 256))
return -EINVAL;
lut_data->red = kcal_r;
lut_data->green = kcal_g;
lut_data->blue = kcal_b;
mdss_mdp_kcal_update_pcc(lut_data);
mdss_mdp_kcal_display_commit();
return count;
}