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drivers: display_st7789v: make functions static, cleanup

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Make privat functions static, remove unused st7789v_cmd_read8().

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2019-11-18 21:27:53 +01:00 • committed by Anas Nashif
commit 885d80f2f2
1 changed files with 6 additions and 31 deletions
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37
drivers/display/display_st7789v.c
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@ -97,31 +97,6 @@ static void st7789v_reset_display(struct st7789v_data *data)
#endif
}
int st7789v_cmd_read8(struct st7789v_data *data, int cmd, u8_t *pRet)
{
u8_t sendbuff[4];
sendbuff[0] = cmd;
const struct spi_buf tx_buf[2] = {
{ .buf = sendbuff, .len = 1 },
{ .buf = 0, .len = 1 },
};
const struct spi_buf rx_buf[2] = {
{ .buf = 0, .len = 1 },
{ .buf = pRet, .len = 1 }
};
struct spi_buf_set tx_bufs = { .buffers = tx_buf, .count = 2 };
struct spi_buf_set rx_bufs = { .buffers = rx_buf, .count = 2 };
st7789v_set_cmd(data, 1);
int ret = spi_transceive(data->spi_dev, &data->spi_config, &tx_bufs,
&rx_bufs);
st7789v_set_cmd(data, 0);
return ret;
}
static int st7789v_blanking_on(const struct device *dev)
{
struct st7789v_data *driver = (struct st7789v_data *)dev->driver_data;
@ -212,24 +187,24 @@ static int st7789v_write(const struct device *dev,
return 0;
}
void *st7789v_get_framebuffer(const struct device *dev)
static void *st7789v_get_framebuffer(const struct device *dev)
{
return NULL;
}
int st7789v_set_brightness(const struct device *dev,
static int st7789v_set_brightness(const struct device *dev,
const u8_t brightness)
{
return -ENOTSUP;
}
int st7789v_set_contrast(const struct device *dev,
static int st7789v_set_contrast(const struct device *dev,
const u8_t contrast)
{
return -ENOTSUP;
}
void st7789v_get_capabilities(const struct device *dev,
static void st7789v_get_capabilities(const struct device *dev,
struct display_capabilities *capabilities)
{
struct st7789v_data *data = (struct st7789v_data *)dev->driver_data;
@ -248,7 +223,7 @@ void st7789v_get_capabilities(const struct device *dev,
capabilities->current_orientation = DISPLAY_ORIENTATION_NORMAL;
}
int st7789v_set_pixel_format(const struct device *dev,
static int st7789v_set_pixel_format(const struct device *dev,
const enum display_pixel_format pixel_format)
{
#ifdef CONFIG_ST7789V_RGB565
@ -262,7 +237,7 @@ int st7789v_set_pixel_format(const struct device *dev,
return -ENOTSUP;
}
int st7789v_set_orientation(const struct device *dev,
static int st7789v_set_orientation(const struct device *dev,
const enum display_orientation orientation)
{
if (orientation == DISPLAY_ORIENTATION_NORMAL) {