From: poeschel@lemonage.de
To: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>,
Willy Tarreau <willy@haproxy.com>,
Ksenija Stanojevic <ksenija.stanojevic@gmail.com>,
linux-kernel@vger.kernel.org (open list)
Cc: Lars Poeschel <poeschel@lemonage.de>, Willy Tarreau <w@1wt.eu>
Subject: [PATCH v6 15/25] auxdisplay: implement various hd44780_common_ functions
Date: Tue, 3 Nov 2020 10:58:18 +0100 [thread overview]
Message-ID: <20201103095828.515831-16-poeschel@lemonage.de> (raw)
In-Reply-To: <20201103095828.515831-1-poeschel@lemonage.de>
From: Lars Poeschel <poeschel@lemonage.de>
This implements various hd44780_common_ functions for hd44780 compatible
display drivers to use. charlcd then calls these functions through its
ops function pointer.
The functions namely are:
- hd44780_common_shift_cursor
- hd44780_common_display_shift
- hd44780_common_display
- hd44780_common_cursor
- hd44780_common_blink
- hd44780_common_fontsize
- hd44780_common_lines
Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
---
Changes in v5:
- this patch is squashed together from the former individual
hd44780_common_ function patches
---
drivers/auxdisplay/charlcd.c | 73 ++++++++++------
drivers/auxdisplay/charlcd.h | 28 ++++++
drivers/auxdisplay/hd44780.c | 14 +++
drivers/auxdisplay/hd44780_common.c | 131 ++++++++++++++++++++++++++++
drivers/auxdisplay/hd44780_common.h | 9 ++
drivers/auxdisplay/panel.c | 21 +++++
6 files changed, 249 insertions(+), 27 deletions(-)
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 94f6b0afab13..281a3259c144 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -31,10 +31,6 @@
#define LCD_CMD_CURSOR_ON 0x02 /* Set cursor on */
#define LCD_CMD_BLINK_ON 0x01 /* Set blink on */
-#define LCD_CMD_SHIFT 0x10 /* Shift cursor/display */
-#define LCD_CMD_DISPLAY_SHIFT 0x08 /* Shift display instead of cursor */
-#define LCD_CMD_SHIFT_RIGHT 0x04 /* Shift display/cursor to the right */
-
#define LCD_CMD_FUNCTION_SET 0x20 /* Set function */
#define LCD_CMD_DATA_LEN_8BITS 0x10 /* Set data length to 8 bits */
#define LCD_CMD_TWO_LINES 0x08 /* Set to two display lines */
@@ -236,26 +232,44 @@ static inline int handle_lcd_special_code(struct charlcd *lcd)
switch (*esc) {
case 'D': /* Display ON */
priv->flags |= LCD_FLAG_D;
+ if (priv->flags != oldflags)
+ lcd->ops->display(lcd, CHARLCD_ON);
+
processed = 1;
break;
case 'd': /* Display OFF */
priv->flags &= ~LCD_FLAG_D;
+ if (priv->flags != oldflags)
+ lcd->ops->display(lcd, CHARLCD_OFF);
+
processed = 1;
break;
case 'C': /* Cursor ON */
priv->flags |= LCD_FLAG_C;
+ if (priv->flags != oldflags)
+ lcd->ops->cursor(lcd, CHARLCD_ON);
+
processed = 1;
break;
case 'c': /* Cursor OFF */
priv->flags &= ~LCD_FLAG_C;
+ if (priv->flags != oldflags)
+ lcd->ops->cursor(lcd, CHARLCD_OFF);
+
processed = 1;
break;
case 'B': /* Blink ON */
priv->flags |= LCD_FLAG_B;
+ if (priv->flags != oldflags)
+ lcd->ops->blink(lcd, CHARLCD_ON);
+
processed = 1;
break;
case 'b': /* Blink OFF */
priv->flags &= ~LCD_FLAG_B;
+ if (priv->flags != oldflags)
+ lcd->ops->blink(lcd, CHARLCD_OFF);
+
processed = 1;
break;
case '+': /* Back light ON */
@@ -272,47 +286,54 @@ static inline int handle_lcd_special_code(struct charlcd *lcd)
break;
case 'f': /* Small Font */
priv->flags &= ~LCD_FLAG_F;
+ if (priv->flags != oldflags)
+ lcd->ops->fontsize(lcd, CHARLCD_FONTSIZE_SMALL);
+
processed = 1;
break;
case 'F': /* Large Font */
priv->flags |= LCD_FLAG_F;
+ if (priv->flags != oldflags)
+ lcd->ops->fontsize(lcd, CHARLCD_FONTSIZE_LARGE);
+
processed = 1;
break;
case 'n': /* One Line */
priv->flags &= ~LCD_FLAG_N;
+ if (priv->flags != oldflags)
+ lcd->ops->lines(lcd, CHARLCD_LINES_1);
+
processed = 1;
break;
case 'N': /* Two Lines */
priv->flags |= LCD_FLAG_N;
+ if (priv->flags != oldflags)
+ lcd->ops->lines(lcd, CHARLCD_LINES_2);
+
processed = 1;
break;
case 'l': /* Shift Cursor Left */
if (lcd->addr.x > 0) {
- /* back one char if not at end of line */
- if (lcd->addr.x < hdc->bwidth)
- hdc->write_cmd(hdc, LCD_CMD_SHIFT);
- lcd->addr.x--;
+ if (!lcd->ops->shift_cursor(lcd, CHARLCD_SHIFT_LEFT))
+ lcd->addr.x--;
}
+
processed = 1;
break;
case 'r': /* shift cursor right */
if (lcd->addr.x < lcd->width) {
- /* allow the cursor to pass the end of the line */
- if (lcd->addr.x < (hdc->bwidth - 1))
- hdc->write_cmd(hdc,
- LCD_CMD_SHIFT | LCD_CMD_SHIFT_RIGHT);
- lcd->addr.x++;
+ if (!lcd->ops->shift_cursor(lcd, CHARLCD_SHIFT_RIGHT))
+ lcd->addr.x++;
}
+
processed = 1;
break;
case 'L': /* shift display left */
- hdc->write_cmd(hdc, LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT);
+ lcd->ops->shift_display(lcd, CHARLCD_SHIFT_LEFT);
processed = 1;
break;
case 'R': /* shift display right */
- hdc->write_cmd(hdc,
- LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT |
- LCD_CMD_SHIFT_RIGHT);
+ lcd->ops->shift_display(lcd, CHARLCD_SHIFT_RIGHT);
processed = 1;
break;
case 'k': { /* kill end of line */
@@ -456,19 +477,17 @@ static void charlcd_write_char(struct charlcd *lcd, char c)
case '\b':
/* go back one char and clear it */
if (lcd->addr.x > 0) {
- /*
- * check if we're not at the
- * end of the line
- */
- if (lcd->addr.x < hdc->bwidth)
- /* back one char */
- hdc->write_cmd(hdc, LCD_CMD_SHIFT);
- lcd->addr.x--;
+ /* back one char */
+ if (!lcd->ops->shift_cursor(lcd,
+ CHARLCD_SHIFT_LEFT))
+ lcd->addr.x--;
}
/* replace with a space */
- hdc->write_data(hdc, ' ');
+ charlcd_print(lcd, ' ');
/* back one char again */
- hdc->write_cmd(hdc, LCD_CMD_SHIFT);
+ if (!lcd->ops->shift_cursor(lcd, CHARLCD_SHIFT_LEFT))
+ lcd->addr.x--;
+
break;
case '\f':
/* quickly clear the display */
diff --git a/drivers/auxdisplay/charlcd.h b/drivers/auxdisplay/charlcd.h
index dd40fd814a57..5a89bdeb659a 100644
--- a/drivers/auxdisplay/charlcd.h
+++ b/drivers/auxdisplay/charlcd.h
@@ -21,6 +21,21 @@ enum charlcd_onoff {
CHARLCD_ON,
};
+enum charlcd_shift_dir {
+ CHARLCD_SHIFT_LEFT,
+ CHARLCD_SHIFT_RIGHT,
+};
+
+enum charlcd_fontsize {
+ CHARLCD_FONTSIZE_SMALL,
+ CHARLCD_FONTSIZE_LARGE,
+};
+
+enum charlcd_lines {
+ CHARLCD_LINES_1,
+ CHARLCD_LINES_2,
+};
+
struct charlcd {
const struct charlcd_ops *ops;
const unsigned char *char_conv; /* Optional */
@@ -54,6 +69,12 @@ struct charlcd {
* values in addr.x and addr.y are set to 0, 0 by charlcd prior to calling this
* function.
* @init_display: Initialize the display.
+ * @shift_cursor: Shift cursor left or right one position.
+ * @shift_display: Shift whole display content left or right.
+ * @display: Turn display on or off.
+ * @cursor: Turn cursor on or off.
+ * @blink: Turn cursor blink on or off.
+ * @lines: One or two lines.
*/
struct charlcd_ops {
void (*clear_fast)(struct charlcd *lcd);
@@ -63,6 +84,13 @@ struct charlcd_ops {
int (*home)(struct charlcd *lcd);
int (*clear_display)(struct charlcd *lcd);
int (*init_display)(struct charlcd *lcd);
+ int (*shift_cursor)(struct charlcd *lcd, enum charlcd_shift_dir dir);
+ int (*shift_display)(struct charlcd *lcd, enum charlcd_shift_dir dir);
+ int (*display)(struct charlcd *lcd, enum charlcd_onoff on);
+ int (*cursor)(struct charlcd *lcd, enum charlcd_onoff on);
+ int (*blink)(struct charlcd *lcd, enum charlcd_onoff on);
+ int (*fontsize)(struct charlcd *lcd, enum charlcd_fontsize size);
+ int (*lines)(struct charlcd *lcd, enum charlcd_lines lines);
};
void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on);
diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
index 5916da09f738..7b7b28d72198 100644
--- a/drivers/auxdisplay/hd44780.c
+++ b/drivers/auxdisplay/hd44780.c
@@ -131,6 +131,13 @@ static const struct charlcd_ops hd44780_ops_gpio8 = {
.home = hd44780_common_home,
.clear_display = hd44780_common_clear_display,
.init_display = hd44780_common_init_display,
+ .shift_cursor = hd44780_common_shift_cursor,
+ .shift_display = hd44780_common_shift_display,
+ .display = hd44780_common_display,
+ .cursor = hd44780_common_cursor,
+ .blink = hd44780_common_blink,
+ .fontsize = hd44780_common_fontsize,
+ .lines = hd44780_common_lines,
};
/* Send a command to the LCD panel in 4 bit GPIO mode */
@@ -179,6 +186,13 @@ static const struct charlcd_ops hd44780_ops_gpio4 = {
.home = hd44780_common_home,
.clear_display = hd44780_common_clear_display,
.init_display = hd44780_common_init_display,
+ .shift_cursor = hd44780_common_shift_cursor,
+ .shift_display = hd44780_common_shift_display,
+ .display = hd44780_common_display,
+ .cursor = hd44780_common_cursor,
+ .blink = hd44780_common_blink,
+ .fontsize = hd44780_common_fontsize,
+ .lines = hd44780_common_lines,
};
static int hd44780_probe(struct platform_device *pdev)
diff --git a/drivers/auxdisplay/hd44780_common.c b/drivers/auxdisplay/hd44780_common.c
index 7d4aea36cc55..9d538fdcd260 100644
--- a/drivers/auxdisplay/hd44780_common.c
+++ b/drivers/auxdisplay/hd44780_common.c
@@ -17,6 +17,10 @@
#define LCD_CMD_CURSOR_ON 0x02 /* Set cursor on */
#define LCD_CMD_BLINK_ON 0x01 /* Set blink on */
+#define LCD_CMD_SHIFT 0x10 /* Shift cursor/display */
+#define LCD_CMD_DISPLAY_SHIFT 0x08 /* Shift display instead of cursor */
+#define LCD_CMD_SHIFT_RIGHT 0x04 /* Shift display/cursor to the right */
+
#define LCD_CMD_FUNCTION_SET 0x20 /* Set function */
#define LCD_CMD_DATA_LEN_8BITS 0x10 /* Set data length to 8 bits */
#define LCD_CMD_TWO_LINES 0x08 /* Set to two display lines */
@@ -158,6 +162,133 @@ int hd44780_common_init_display(struct charlcd *lcd)
}
EXPORT_SYMBOL_GPL(hd44780_common_init_display);
+int hd44780_common_shift_cursor(struct charlcd *lcd, enum charlcd_shift_dir dir)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (dir == CHARLCD_SHIFT_LEFT) {
+ /* back one char if not at end of line */
+ if (lcd->addr.x < hdc->bwidth)
+ hdc->write_cmd(hdc, LCD_CMD_SHIFT);
+ } else if (dir == CHARLCD_SHIFT_RIGHT) {
+ /* allow the cursor to pass the end of the line */
+ if (lcd->addr.x < (hdc->bwidth - 1))
+ hdc->write_cmd(hdc,
+ LCD_CMD_SHIFT | LCD_CMD_SHIFT_RIGHT);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_shift_cursor);
+
+int hd44780_common_shift_display(struct charlcd *lcd,
+ enum charlcd_shift_dir dir)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (dir == CHARLCD_SHIFT_LEFT)
+ hdc->write_cmd(hdc, LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT);
+ else if (dir == CHARLCD_SHIFT_RIGHT)
+ hdc->write_cmd(hdc, LCD_CMD_SHIFT | LCD_CMD_DISPLAY_SHIFT |
+ LCD_CMD_SHIFT_RIGHT);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_shift_display);
+
+static void hd44780_common_set_mode(struct hd44780_common *hdc)
+{
+ hdc->write_cmd(hdc,
+ LCD_CMD_DISPLAY_CTRL |
+ ((hdc->hd44780_common_flags & LCD_FLAG_D) ?
+ LCD_CMD_DISPLAY_ON : 0) |
+ ((hdc->hd44780_common_flags & LCD_FLAG_C) ?
+ LCD_CMD_CURSOR_ON : 0) |
+ ((hdc->hd44780_common_flags & LCD_FLAG_B) ?
+ LCD_CMD_BLINK_ON : 0));
+}
+
+int hd44780_common_display(struct charlcd *lcd, enum charlcd_onoff on)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (on == CHARLCD_ON)
+ hdc->hd44780_common_flags |= LCD_FLAG_D;
+ else
+ hdc->hd44780_common_flags &= ~LCD_FLAG_D;
+
+ hd44780_common_set_mode(hdc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_display);
+
+int hd44780_common_cursor(struct charlcd *lcd, enum charlcd_onoff on)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (on == CHARLCD_ON)
+ hdc->hd44780_common_flags |= LCD_FLAG_C;
+ else
+ hdc->hd44780_common_flags &= ~LCD_FLAG_C;
+
+ hd44780_common_set_mode(hdc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_cursor);
+
+int hd44780_common_blink(struct charlcd *lcd, enum charlcd_onoff on)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (on == CHARLCD_ON)
+ hdc->hd44780_common_flags |= LCD_FLAG_B;
+ else
+ hdc->hd44780_common_flags &= ~LCD_FLAG_B;
+
+ hd44780_common_set_mode(hdc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_blink);
+
+static void hd44780_common_set_function(struct hd44780_common *hdc)
+{
+ hdc->write_cmd(hdc,
+ LCD_CMD_FUNCTION_SET |
+ ((hdc->ifwidth == 8) ? LCD_CMD_DATA_LEN_8BITS : 0) |
+ ((hdc->hd44780_common_flags & LCD_FLAG_F) ?
+ LCD_CMD_FONT_5X10_DOTS : 0) |
+ ((hdc->hd44780_common_flags & LCD_FLAG_N) ?
+ LCD_CMD_TWO_LINES : 0));
+}
+
+int hd44780_common_fontsize(struct charlcd *lcd, enum charlcd_fontsize size)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (size == CHARLCD_FONTSIZE_LARGE)
+ hdc->hd44780_common_flags |= LCD_FLAG_F;
+ else
+ hdc->hd44780_common_flags &= ~LCD_FLAG_F;
+
+ hd44780_common_set_function(hdc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_fontsize);
+
+int hd44780_common_lines(struct charlcd *lcd, enum charlcd_lines lines)
+{
+ struct hd44780_common *hdc = lcd->drvdata;
+
+ if (lines == CHARLCD_LINES_2)
+ hdc->hd44780_common_flags |= LCD_FLAG_N;
+ else
+ hdc->hd44780_common_flags &= ~LCD_FLAG_N;
+
+ hd44780_common_set_function(hdc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hd44780_common_lines);
+
struct hd44780_common *hd44780_common_alloc(void)
{
struct hd44780_common *hd;
diff --git a/drivers/auxdisplay/hd44780_common.h b/drivers/auxdisplay/hd44780_common.h
index a8e322891ce2..e5a69fdc3b61 100644
--- a/drivers/auxdisplay/hd44780_common.h
+++ b/drivers/auxdisplay/hd44780_common.h
@@ -20,4 +20,13 @@ int hd44780_common_gotoxy(struct charlcd *lcd);
int hd44780_common_home(struct charlcd *lcd);
int hd44780_common_clear_display(struct charlcd *lcd);
int hd44780_common_init_display(struct charlcd *lcd);
+int hd44780_common_shift_cursor(struct charlcd *lcd,
+ enum charlcd_shift_dir dir);
+int hd44780_common_shift_display(struct charlcd *lcd,
+ enum charlcd_shift_dir dir);
+int hd44780_common_display(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_cursor(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_blink(struct charlcd *lcd, enum charlcd_onoff on);
+int hd44780_common_fontsize(struct charlcd *lcd, enum charlcd_fontsize size);
+int hd44780_common_lines(struct charlcd *lcd, enum charlcd_lines lines);
struct hd44780_common *hd44780_common_alloc(void);
diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
index 583bd22d3abd..3d33d7cc979c 100644
--- a/drivers/auxdisplay/panel.c
+++ b/drivers/auxdisplay/panel.c
@@ -879,6 +879,13 @@ static const struct charlcd_ops charlcd_serial_ops = {
.home = hd44780_common_home,
.clear_display = hd44780_common_clear_display,
.init_display = hd44780_common_init_display,
+ .shift_cursor = hd44780_common_shift_cursor,
+ .shift_display = hd44780_common_shift_display,
+ .display = hd44780_common_display,
+ .cursor = hd44780_common_cursor,
+ .blink = hd44780_common_blink,
+ .fontsize = hd44780_common_fontsize,
+ .lines = hd44780_common_lines,
};
static const struct charlcd_ops charlcd_parallel_ops = {
@@ -888,6 +895,13 @@ static const struct charlcd_ops charlcd_parallel_ops = {
.home = hd44780_common_home,
.clear_display = hd44780_common_clear_display,
.init_display = hd44780_common_init_display,
+ .shift_cursor = hd44780_common_shift_cursor,
+ .shift_display = hd44780_common_shift_display,
+ .display = hd44780_common_display,
+ .cursor = hd44780_common_cursor,
+ .blink = hd44780_common_blink,
+ .fontsize = hd44780_common_fontsize,
+ .lines = hd44780_common_lines,
};
static const struct charlcd_ops charlcd_tilcd_ops = {
@@ -897,6 +911,13 @@ static const struct charlcd_ops charlcd_tilcd_ops = {
.home = hd44780_common_home,
.clear_display = hd44780_common_clear_display,
.init_display = hd44780_common_init_display,
+ .shift_cursor = hd44780_common_shift_cursor,
+ .shift_display = hd44780_common_shift_display,
+ .display = hd44780_common_display,
+ .cursor = hd44780_common_cursor,
+ .blink = hd44780_common_blink,
+ .fontsize = hd44780_common_fontsize,
+ .lines = hd44780_common_lines,
};
/* initialize the LCD driver */
--
2.28.0
next prev parent reply other threads:[~2020-11-03 9:59 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-03 9:58 [PATCH v6 00/25] Make charlcd device independent poeschel
2020-11-03 9:58 ` [PATCH v6 01/25] auxdisplay: Use an enum for charlcd backlight on/off ops poeschel
2020-11-03 9:58 ` [PATCH v6 02/25] auxdisplay: Introduce hd44780_common.[ch] poeschel
2020-11-03 9:58 ` [PATCH v6 03/25] auxdisplay: Move hwidth and bwidth to struct hd44780_common poeschel
2020-11-03 9:58 ` [PATCH v6 04/25] auxdisplay: Move ifwidth " poeschel
2020-11-03 9:58 ` [PATCH v6 05/25] auxdisplay: Move write_data pointer to hd44780_common poeschel
2020-11-03 9:58 ` [PATCH v6 06/25] auxdisplay: Move write_cmd pointers to hd44780 drivers poeschel
2020-11-03 9:58 ` [PATCH v6 07/25] auxdisplay: Move addr out of charlcd_priv poeschel
2020-11-03 9:58 ` [PATCH v6 08/25] auxdisplay: hd44780_common_print poeschel
2020-11-03 9:58 ` [PATCH v6 09/25] auxdisplay: provide hd44780_common_gotoxy poeschel
2020-11-03 9:58 ` [PATCH v6 10/25] auxdisplay: add home to charlcd_ops poeschel
2020-11-03 9:58 ` [PATCH v6 11/25] auxdisplay: Move clear_display to hd44780_common poeschel
2020-11-03 9:58 ` [PATCH v6 12/25] auxdisplay: make charlcd_backlight visible " poeschel
2020-11-03 9:58 ` [PATCH v6 13/25] auxdisplay: Make use of enum for backlight on / off poeschel
2020-11-03 9:58 ` [PATCH v6 14/25] auxdisplay: Move init_display to hd44780_common poeschel
2020-11-03 9:58 ` poeschel [this message]
2020-11-03 9:58 ` [PATCH v6 16/25] auxdisplay: cleanup unnecessary hd44780 code in charlcd poeschel
2020-11-03 9:58 ` [PATCH v6 17/25] auxdisplay: Move char redefine code to hd44780_common poeschel
2020-11-03 9:58 ` [PATCH v6 18/25] auxdisplay: Call charlcd_backlight in place poeschel
2020-11-03 9:58 ` [PATCH v6 19/25] auxdisplay: hd44780_common: Reduce clear_display timeout poeschel
2020-11-03 9:58 ` [PATCH v6 20/25] auxdisplay: hd44780: Remove clear_fast poeschel
2020-11-03 9:58 ` [PATCH v6 21/25] auxdisplay: charlcd: replace last device specific stuff poeschel
2020-11-03 9:58 ` [PATCH v6 22/25] auxdisplay: Change gotoxy calling interface poeschel
2020-11-03 9:58 ` [PATCH v6 23/25] auxdisplay: charlcd: Do not print chars at end of line poeschel
2020-11-03 9:58 ` [PATCH v6 24/25] auxdisplay: lcd2s DT binding doc poeschel
2020-11-03 9:58 ` [PATCH v6 25/25] auxdisplay: add a driver for lcd2s character display poeschel
2020-11-04 13:30 ` [PATCH v6 00/25] Make charlcd device independent Miguel Ojeda
2020-11-06 10:11 ` Lars Poeschel
2020-11-06 12:17 ` Miguel Ojeda
2020-11-06 16:35 ` Randy Dunlap
2020-11-09 9:31 ` [PATCH] auxdisplay: hd44780_common: Fix build error poeschel
2020-11-09 9:45 ` Miguel Ojeda
2020-11-09 17:30 ` Randy Dunlap
2020-11-09 9:53 ` [PATCH v6 00/25] Make charlcd device independent Miguel Ojeda
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