video: ssd1307fb: Make use of device properties

Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200324170532.44384-3-andriy.shevchenko@linux.intel.com

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 13f5b2f347ce0d7b1f6e82d56c67f017c8757fdf..1b91fa98863c344b84da855ce1451e7f5d1b27b8 100644 (file)
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -12,8 +12,7 @@
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
+#include <linux/property.h>
 #include <linux/pwm.h>
 #include <linux/uaccess.h>
 #include <linux/regulator/consumer.h>
@@ -592,7 +591,6 @@ static int ssd1307fb_probe(struct i2c_client *client)
        struct backlight_device *bl;
        char bl_name[12];
        struct fb_info *info;
-       struct device_node *node = client->dev.of_node;
        struct fb_deferred_io *ssd1307fb_defio;
        u32 vmem_size;
        struct ssd1307fb_par *par;
@@ -607,7 +605,7 @@ static int ssd1307fb_probe(struct i2c_client *client)
        par->info = info;
        par->client = client;
 
-       par->device_info = of_device_get_match_data(&client->dev);
+       par->device_info = device_get_match_data(dev);
 
        par->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
        if (IS_ERR(par->reset)) {
@@ -628,44 +626,44 @@ static int ssd1307fb_probe(struct i2c_client *client)
                }
        }
 
-       if (of_property_read_u32(node, "solomon,width", &par->width))
+       if (device_property_read_u32(dev, "solomon,width", &par->width))
                par->width = 96;
 
-       if (of_property_read_u32(node, "solomon,height", &par->height))
+       if (device_property_read_u32(dev, "solomon,height", &par->height))
                par->height = 16;
 
-       if (of_property_read_u32(node, "solomon,page-offset", &par->page_offset))
+       if (device_property_read_u32(dev, "solomon,page-offset", &par->page_offset))
                par->page_offset = 1;
 
-       if (of_property_read_u32(node, "solomon,com-offset", &par->com_offset))
+       if (device_property_read_u32(dev, "solomon,com-offset", &par->com_offset))
                par->com_offset = 0;
 
-       if (of_property_read_u32(node, "solomon,prechargep1", &par->prechargep1))
+       if (device_property_read_u32(dev, "solomon,prechargep1", &par->prechargep1))
                par->prechargep1 = 2;
 
-       if (of_property_read_u32(node, "solomon,prechargep2", &par->prechargep2))
+       if (device_property_read_u32(dev, "solomon,prechargep2", &par->prechargep2))
                par->prechargep2 = 2;
 
-       if (!of_property_read_u8_array(node, "solomon,lookup-table",
-                                      par->lookup_table,
-                                      ARRAY_SIZE(par->lookup_table)))
+       if (!device_property_read_u8_array(dev, "solomon,lookup-table",
+                                          par->lookup_table,
+                                          ARRAY_SIZE(par->lookup_table)))
                par->lookup_table_set = 1;
 
-       par->seg_remap = !of_property_read_bool(node, "solomon,segment-no-remap");
-       par->com_seq = of_property_read_bool(node, "solomon,com-seq");
-       par->com_lrremap = of_property_read_bool(node, "solomon,com-lrremap");
-       par->com_invdir = of_property_read_bool(node, "solomon,com-invdir");
+       par->seg_remap = !device_property_read_bool(dev, "solomon,segment-no-remap");
+       par->com_seq = device_property_read_bool(dev, "solomon,com-seq");
+       par->com_lrremap = device_property_read_bool(dev, "solomon,com-lrremap");
+       par->com_invdir = device_property_read_bool(dev, "solomon,com-invdir");
        par->area_color_enable =
-               of_property_read_bool(node, "solomon,area-color-enable");
-       par->low_power = of_property_read_bool(node, "solomon,low-power");
+               device_property_read_bool(dev, "solomon,area-color-enable");
+       par->low_power = device_property_read_bool(dev, "solomon,low-power");
 
        par->contrast = 127;
        par->vcomh = par->device_info->default_vcomh;
 
        /* Setup display timing */
-       if (of_property_read_u32(node, "solomon,dclk-div", &par->dclk_div))
+       if (device_property_read_u32(dev, "solomon,dclk-div", &par->dclk_div))
                par->dclk_div = par->device_info->default_dclk_div;
-       if (of_property_read_u32(node, "solomon,dclk-frq", &par->dclk_frq))
+       if (device_property_read_u32(dev, "solomon,dclk-frq", &par->dclk_frq))
                par->dclk_frq = par->device_info->default_dclk_frq;
 
        vmem_size = DIV_ROUND_UP(par->width, 8) * par->height;