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drivers: ssd1673: add DT properties for configuration registers

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The values for the registers like GDV, SDV and Boarder Waveform
depend on the panel and display controller. Add DT properties
and obtain such values from DT.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2019-02-04 17:09:53 +01:00 • committed by Anas Nashif
commit f7495ef8eb
4 changed files with 67 additions and 8 deletions
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5
boards/arm/reel_board/reel_board.dts
View file

@ -129,6 +129,11 @@
reset-gpios = <&gpio0 15 0>; reset-gpios = <&gpio0 15 0>;
dc-gpios = <&gpio0 16 0>; dc-gpios = <&gpio0 16 0>;
busy-gpios = <&gpio0 14 0>; busy-gpios = <&gpio0 14 0>;
gdv-a = <0x10>;
gdv-b = <0x0a>;
sdv = <0x19>;
vcom = <0xa8>;
border-waveform = <0x71>;
}; };
}; };

18
drivers/display/ssd1673.c
View file

@ -467,20 +467,24 @@ static int ssd1673_controller_init(struct device *dev)
return err; return err;
} }
tmp[0] = SSD1673_VAL_GDV_CTRL_A; tmp[0] = DT_SOLOMON_SSD1673FB_0_GDV_A;
tmp[1] = SSD1673_VAL_GDV_CTRL_B; #if defined(DT_SOLOMON_SSD1673FB_0_GDV_B)
tmp[1] = DT_SOLOMON_SSD1673FB_0_GDV_B;
err = ssd1673_write_cmd(driver, SSD1673_CMD_GDV_CTRL, tmp, 2); err = ssd1673_write_cmd(driver, SSD1673_CMD_GDV_CTRL, tmp, 2);
#else
err = ssd1673_write_cmd(driver, SSD1673_CMD_GDV_CTRL, tmp, 1);
#endif
if (err < 0) { if (err < 0) {
return err; return err;
} }
tmp[0] = SSD1673_VAL_SDV_CTRL; tmp[0] = DT_SOLOMON_SSD1673FB_0_SDV;
err = ssd1673_write_cmd(driver, SSD1673_CMD_SDV_CTRL, tmp, 1); err = ssd1673_write_cmd(driver, SSD1673_CMD_SDV_CTRL, tmp, 1);
if (err < 0) { if (err < 0) {
return err; return err;
} }
tmp[0] = SSD1673_VAL_VCOM_VOLTAGE; tmp[0] = DT_SOLOMON_SSD1673FB_0_VCOM;
err = ssd1673_write_cmd(driver, SSD1673_CMD_VCOM_VOLTAGE, tmp, 1); err = ssd1673_write_cmd(driver, SSD1673_CMD_VCOM_VOLTAGE, tmp, 1);
if (err < 0) { if (err < 0) {
return err; return err;
@ -498,6 +502,12 @@ static int ssd1673_controller_init(struct device *dev)
return err; return err;
} }
tmp[0] = DT_SOLOMON_SSD1673FB_0_BORDER_WAVEFORM;
err = ssd1673_write_cmd(driver, SSD1673_CMD_BWF_CTRL, tmp, 1);
if (err < 0) {
return err;
}
ssd1673_set_orientation_internall(driver); ssd1673_set_orientation_internall(driver);
err = ssd1673_write_cmd(driver, SSD1673_CMD_UPDATE_LUT, err = ssd1673_write_cmd(driver, SSD1673_CMD_UPDATE_LUT,

4
drivers/display/ssd1673_regs.h
View file

@ -66,10 +66,6 @@
#define SSD1673_SLEEP_MODE_PON 0x00 #define SSD1673_SLEEP_MODE_PON 0x00
/* Default values */ /* Default values */
#define SSD1673_VAL_GDV_CTRL_A 16
#define SSD1673_VAL_GDV_CTRL_B 10
#define SSD1673_VAL_SDV_CTRL 0x19
#define SSD1673_VAL_VCOM_VOLTAGE 0xa8
#define SSD1673_VAL_DUMMY_LINE 0x1a #define SSD1673_VAL_DUMMY_LINE 0x1a
#define SSD1673_VAL_GATE_LWIDTH 0x08 #define SSD1673_VAL_GATE_LWIDTH 0x08

48
dts/bindings/display/solomon,ssd1673fb.yaml
View file

@ -41,6 +41,54 @@ properties:
description: Number of bits used for the width parameters description: Number of bits used for the width parameters
generation: define generation: define
gdv-a:
type: hex
category: required
description: Gate driving voltage (A value)
generation: define
gdv-b:
type: hex
category: optional
description: Gate driving voltage (B value)
generation: define
sdv:
type: hex
category: required
description: Source driving voltage
generation: define
vcom:
type: hex
category: required
description: VCOM voltage
generation: define
border-waveform:
type: hex
category: required
description: Border waveform
generation: define
softstart-1:
type: hex
category: optional
description: Booster soft start phase 1
generation: define
softstart-2:
type: hex
category: optional
description: Booster soft start phase 2
generation: define
softstart-3:
type: hex
category: optional
description: Booster soft start phase 3
generation: define
orientation-flipped: orientation-flipped:
type: boolean type: boolean
category: optional category: optional