diff options
| author | Lars Poeschel <poeschel@lemonage.de> | 2020-11-03 12:58:08 +0300 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2020-11-04 13:04:03 +0300 |
| commit | 71ff701bbefec9e3c342f3a01d2d89b7ae026c71 (patch) | |
| tree | ad1868fc8513ced579338f8450cf320fedf8d1a1 /drivers/auxdisplay/hd44780.c | |
| parent | 3fc04dd7eb77b54228a17753ec01128417433e46 (diff) | |
| download | linux-71ff701bbefec9e3c342f3a01d2d89b7ae026c71.tar.xz | |
auxdisplay: Move write_data pointer to hd44780_common
This moves the write_data function pointer from struct charlcd_ops to
struct hd44780_common. This is the function that actually writes the
character to the display. This hd44780 hardware specific function is
used by two drivers at the moment.
Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'drivers/auxdisplay/hd44780.c')
| -rw-r--r-- | drivers/auxdisplay/hd44780.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c index f6786239c36f..922f0e0d2e6d 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -115,9 +115,8 @@ static void hd44780_write_cmd_gpio8(struct charlcd *lcd, int cmd) } /* Send data to the LCD panel in 8 bit GPIO mode */ -static void hd44780_write_data_gpio8(struct charlcd *lcd, int data) +static void hd44780_write_data_gpio8(struct hd44780_common *hdc, int data) { - struct hd44780_common *hdc = lcd->drvdata; struct hd44780 *hd = hdc->hd44780; hd44780_write_gpio8(hd, data, 1); @@ -128,7 +127,6 @@ static void hd44780_write_data_gpio8(struct charlcd *lcd, int data) static const struct charlcd_ops hd44780_ops_gpio8 = { .write_cmd = hd44780_write_cmd_gpio8, - .write_data = hd44780_write_data_gpio8, .backlight = hd44780_backlight, }; @@ -163,9 +161,8 @@ static void hd44780_write_cmd_raw_gpio4(struct charlcd *lcd, int cmd) } /* Send data to the LCD panel in 4 bit GPIO mode */ -static void hd44780_write_data_gpio4(struct charlcd *lcd, int data) +static void hd44780_write_data_gpio4(struct hd44780_common *hdc, int data) { - struct hd44780_common *hdc = lcd->drvdata; struct hd44780 *hd = hdc->hd44780; hd44780_write_gpio4(hd, data, 1); @@ -177,7 +174,6 @@ static void hd44780_write_data_gpio4(struct charlcd *lcd, int data) static const struct charlcd_ops hd44780_ops_gpio4 = { .write_cmd = hd44780_write_cmd_gpio4, .write_cmd_raw4 = hd44780_write_cmd_raw_gpio4, - .write_data = hd44780_write_data_gpio4, .backlight = hd44780_backlight, }; @@ -276,7 +272,13 @@ static int hd44780_probe(struct platform_device *pdev) device_property_read_u32(dev, "internal-buffer-width", &hdc->bwidth); hdc->ifwidth = ifwidth; - lcd->ops = ifwidth == 8 ? &hd44780_ops_gpio8 : &hd44780_ops_gpio4; + if (ifwidth == 8) { + lcd->ops = &hd44780_ops_gpio8; + hdc->write_data = hd44780_write_data_gpio8; + } else { + lcd->ops = &hd44780_ops_gpio4; + hdc->write_data = hd44780_write_data_gpio4; + } ret = charlcd_register(lcd); if (ret) |