* [PATCH 1/1] This patch adds backlight control for omap3evm
@ 2008-07-01 12:22 arun c
2008-07-03 10:28 ` Tony Lindgren
0 siblings, 1 reply; 2+ messages in thread
From: arun c @ 2008-07-01 12:22 UTC (permalink / raw)
To: linux-omap
[-- Attachment #1: Type: text/plain, Size: 2604 bytes --]
TWL4030 LEDdriver A(LEDA) is used here to control the LCD backlight
Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
---
drivers/video/omap/lcd_omap3evm.c | 39 +++++++++++++++++++++++++++++++++---
1 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/drivers/video/omap/lcd_omap3evm.c
b/drivers/video/omap/lcd_omap3evm.c
index 5d2ed04..f5a1477 100644
--- a/drivers/video/omap/lcd_omap3evm.c
+++ b/drivers/video/omap/lcd_omap3evm.c
@@ -45,6 +45,12 @@
#define ENABLE_VPLL2_DEDICATED 0x05
#define ENABLE_VPLL2_DEV_GRP 0xE0
+#define TWL_LED_LEDEN 0x00
+#define TWL_PWMA_PWMAON 0x00
+#define TWL_PWMA_PWMAOFF 0x01
+
+static unsigned int bklight_level;
+
static int omap3evm_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
{
@@ -60,10 +66,10 @@ static int omap3evm_panel_init(struct lcd_panel *panel,
omap_set_gpio_direction(LCD_PANEL_RESB, 0);
omap_set_gpio_direction(LCD_PANEL_QVGA, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 1);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 1);
+ twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
+ bklight_level = 100;
omap_set_gpio_dataout(LCD_PANEL_RESB, 1);
omap_set_gpio_dataout(LCD_PANEL_INI, 1);
@@ -94,6 +100,28 @@ static unsigned long
omap3evm_panel_get_caps(struct lcd_panel *panel)
return 0;
}
+static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
+ unsigned int level)
+{
+ u8 c;
+ if ((level >= 0) && (level <= 100)) {
+ c = (125 * (100 - level)) / 100 + 2;
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF);
+ bklight_level = level;
+ }
+ return 0;
+}
+
+static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel)
+{
+ return bklight_level;
+}
+
+static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel)
+{
+ return 100;
+}
+
struct lcd_panel omap3evm_panel = {
.name = "omap3evm",
.config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
@@ -117,6 +145,9 @@ struct lcd_panel omap3evm_panel = {
.enable = omap3evm_panel_enable,
.disable = omap3evm_panel_disable,
.get_caps = omap3evm_panel_get_caps,
+ .set_bklight_level = omap3evm_bklight_setlevel,
+ .get_bklight_level = omap3evm_bklight_getlevel,
+ .get_bklight_max = omap3evm_bklight_getmaxlevel,
};
static int omap3evm_panel_probe(struct platform_device *pdev)
--
1.5.5.3
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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From 92a1094c65e90ae0f0fe5b970f733d584d2f7201 Mon Sep 17 00:00:00 2001
From: Arun C <arunedarath@mistralsolutions.com>
Date: Tue, 1 Jul 2008 16:54:55 +0530
Subject: [PATCH] This patch adds backlight control for omap3evm
TWL4030 LEDdriver A(LEDA) is used here to control the LCD backlight
Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
---
drivers/video/omap/lcd_omap3evm.c | 39 +++++++++++++++++++++++++++++++++---
1 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c
index 5d2ed04..f5a1477 100644
--- a/drivers/video/omap/lcd_omap3evm.c
+++ b/drivers/video/omap/lcd_omap3evm.c
@@ -45,6 +45,12 @@
#define ENABLE_VPLL2_DEDICATED 0x05
#define ENABLE_VPLL2_DEV_GRP 0xE0
+#define TWL_LED_LEDEN 0x00
+#define TWL_PWMA_PWMAON 0x00
+#define TWL_PWMA_PWMAOFF 0x01
+
+static unsigned int bklight_level;
+
static int omap3evm_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
{
@@ -60,10 +66,10 @@ static int omap3evm_panel_init(struct lcd_panel *panel,
omap_set_gpio_direction(LCD_PANEL_RESB, 0);
omap_set_gpio_direction(LCD_PANEL_QVGA, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 1);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 0);
- twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 1);
+ twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
+ bklight_level = 100;
omap_set_gpio_dataout(LCD_PANEL_RESB, 1);
omap_set_gpio_dataout(LCD_PANEL_INI, 1);
@@ -94,6 +100,28 @@ static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel)
return 0;
}
+static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
+ unsigned int level)
+{
+ u8 c;
+ if ((level >= 0) && (level <= 100)) {
+ c = (125 * (100 - level)) / 100 + 2;
+ twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF);
+ bklight_level = level;
+ }
+ return 0;
+}
+
+static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel)
+{
+ return bklight_level;
+}
+
+static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel)
+{
+ return 100;
+}
+
struct lcd_panel omap3evm_panel = {
.name = "omap3evm",
.config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
@@ -117,6 +145,9 @@ struct lcd_panel omap3evm_panel = {
.enable = omap3evm_panel_enable,
.disable = omap3evm_panel_disable,
.get_caps = omap3evm_panel_get_caps,
+ .set_bklight_level = omap3evm_bklight_setlevel,
+ .get_bklight_level = omap3evm_bklight_getlevel,
+ .get_bklight_max = omap3evm_bklight_getmaxlevel,
};
static int omap3evm_panel_probe(struct platform_device *pdev)
--
1.5.5.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/1] This patch adds backlight control for omap3evm
2008-07-01 12:22 [PATCH 1/1] This patch adds backlight control for omap3evm arun c
@ 2008-07-03 10:28 ` Tony Lindgren
0 siblings, 0 replies; 2+ messages in thread
From: Tony Lindgren @ 2008-07-03 10:28 UTC (permalink / raw)
To: arun c; +Cc: linux-omap
* arun c <arunedarath@mistralsolutions.com> [080701 15:25]:
> TWL4030 LEDdriver A(LEDA) is used here to control the LCD backlight
Pushing today.
Tony
> Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
> ---
> drivers/video/omap/lcd_omap3evm.c | 39 +++++++++++++++++++++++++++++++++---
> 1 files changed, 35 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/video/omap/lcd_omap3evm.c
> b/drivers/video/omap/lcd_omap3evm.c
> index 5d2ed04..f5a1477 100644
> --- a/drivers/video/omap/lcd_omap3evm.c
> +++ b/drivers/video/omap/lcd_omap3evm.c
> @@ -45,6 +45,12 @@
> #define ENABLE_VPLL2_DEDICATED 0x05
> #define ENABLE_VPLL2_DEV_GRP 0xE0
>
> +#define TWL_LED_LEDEN 0x00
> +#define TWL_PWMA_PWMAON 0x00
> +#define TWL_PWMA_PWMAOFF 0x01
> +
> +static unsigned int bklight_level;
> +
> static int omap3evm_panel_init(struct lcd_panel *panel,
> struct omapfb_device *fbdev)
> {
> @@ -60,10 +66,10 @@ static int omap3evm_panel_init(struct lcd_panel *panel,
> omap_set_gpio_direction(LCD_PANEL_RESB, 0);
> omap_set_gpio_direction(LCD_PANEL_QVGA, 0);
>
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 0);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 1);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 0);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 1);
> + twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
> + bklight_level = 100;
>
> omap_set_gpio_dataout(LCD_PANEL_RESB, 1);
> omap_set_gpio_dataout(LCD_PANEL_INI, 1);
> @@ -94,6 +100,28 @@ static unsigned long
> omap3evm_panel_get_caps(struct lcd_panel *panel)
> return 0;
> }
>
> +static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
> + unsigned int level)
> +{
> + u8 c;
> + if ((level >= 0) && (level <= 100)) {
> + c = (125 * (100 - level)) / 100 + 2;
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF);
> + bklight_level = level;
> + }
> + return 0;
> +}
> +
> +static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel)
> +{
> + return bklight_level;
> +}
> +
> +static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel)
> +{
> + return 100;
> +}
> +
> struct lcd_panel omap3evm_panel = {
> .name = "omap3evm",
> .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
> @@ -117,6 +145,9 @@ struct lcd_panel omap3evm_panel = {
> .enable = omap3evm_panel_enable,
> .disable = omap3evm_panel_disable,
> .get_caps = omap3evm_panel_get_caps,
> + .set_bklight_level = omap3evm_bklight_setlevel,
> + .get_bklight_level = omap3evm_bklight_getlevel,
> + .get_bklight_max = omap3evm_bklight_getmaxlevel,
> };
>
> static int omap3evm_panel_probe(struct platform_device *pdev)
> --
> 1.5.5.3
> From 92a1094c65e90ae0f0fe5b970f733d584d2f7201 Mon Sep 17 00:00:00 2001
> From: Arun C <arunedarath@mistralsolutions.com>
> Date: Tue, 1 Jul 2008 16:54:55 +0530
> Subject: [PATCH] This patch adds backlight control for omap3evm
>
> TWL4030 LEDdriver A(LEDA) is used here to control the LCD backlight
>
> Signed-off-by: Arun C <arunedarath@mistralsolutions.com>
> ---
> drivers/video/omap/lcd_omap3evm.c | 39 +++++++++++++++++++++++++++++++++---
> 1 files changed, 35 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c
> index 5d2ed04..f5a1477 100644
> --- a/drivers/video/omap/lcd_omap3evm.c
> +++ b/drivers/video/omap/lcd_omap3evm.c
> @@ -45,6 +45,12 @@
> #define ENABLE_VPLL2_DEDICATED 0x05
> #define ENABLE_VPLL2_DEV_GRP 0xE0
>
> +#define TWL_LED_LEDEN 0x00
> +#define TWL_PWMA_PWMAON 0x00
> +#define TWL_PWMA_PWMAOFF 0x01
> +
> +static unsigned int bklight_level;
> +
> static int omap3evm_panel_init(struct lcd_panel *panel,
> struct omapfb_device *fbdev)
> {
> @@ -60,10 +66,10 @@ static int omap3evm_panel_init(struct lcd_panel *panel,
> omap_set_gpio_direction(LCD_PANEL_RESB, 0);
> omap_set_gpio_direction(LCD_PANEL_QVGA, 0);
>
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 0);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 1);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 0);
> - twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 1);
> + twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
> + bklight_level = 100;
>
> omap_set_gpio_dataout(LCD_PANEL_RESB, 1);
> omap_set_gpio_dataout(LCD_PANEL_INI, 1);
> @@ -94,6 +100,28 @@ static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel)
> return 0;
> }
>
> +static int omap3evm_bklight_setlevel(struct lcd_panel *panel,
> + unsigned int level)
> +{
> + u8 c;
> + if ((level >= 0) && (level <= 100)) {
> + c = (125 * (100 - level)) / 100 + 2;
> + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF);
> + bklight_level = level;
> + }
> + return 0;
> +}
> +
> +static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel)
> +{
> + return bklight_level;
> +}
> +
> +static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel)
> +{
> + return 100;
> +}
> +
> struct lcd_panel omap3evm_panel = {
> .name = "omap3evm",
> .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
> @@ -117,6 +145,9 @@ struct lcd_panel omap3evm_panel = {
> .enable = omap3evm_panel_enable,
> .disable = omap3evm_panel_disable,
> .get_caps = omap3evm_panel_get_caps,
> + .set_bklight_level = omap3evm_bklight_setlevel,
> + .get_bklight_level = omap3evm_bklight_getlevel,
> + .get_bklight_max = omap3evm_bklight_getmaxlevel,
> };
>
> static int omap3evm_panel_probe(struct platform_device *pdev)
> --
> 1.5.5.3
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-07-03 10:28 ` Tony Lindgren
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