* [PATCH v2 0/2] video: imxfb DT support
From: Markus Pargmann @ 2013-03-05 17:30 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
version 2 of this patch for imx framebuffer driver DT support.
There are some changes of DT bindings and documentation as
described in notes of patch 2.
Regards,
Markus
^ permalink raw reply
* [PATCH v2 1/2] imxfb: Set alpha value of the framebuffer
From: Markus Pargmann @ 2013-03-05 17:30 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1362504608-15839-1-git-send-email-mpa@pengutronix.de>
From: Christian Hemp <c.hemp@phytec.de>
Based on Sascha Hauer's patch i.MX27 clock: Do not disable lcd clocks during
startup.
This patch gives a interface to chance the alphavalue of the framebuffer.
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
rebased to 3.7
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/video/imxfb.c | 35 +++++++++++++++++++++++++++++++
include/linux/platform_data/video-imxfb.h | 3 +++
2 files changed, 38 insertions(+)
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 0abf2bf..ef2b587 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -31,6 +31,7 @@
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/math64.h>
+#include <linux/uaccess.h>
#include <linux/platform_data/video-imxfb.h>
@@ -112,6 +113,10 @@
#define LCDISR_EOF (1<<1)
#define LCDISR_BOF (1<<0)
+#define LCDC_LGWCR 0x64
+#define LGWCR_GWAV(alpha) (((alpha) & 0xff) << 24)
+#define LGWCR_GWE (1 << 22)
+
/* Used fb-mode. Can be set on kernel command line, therefore file-static. */
static const char *fb_mode;
@@ -610,6 +615,35 @@ static int imxfb_blank(int blank, struct fb_info *info)
return 0;
}
+static int imxfb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ struct imxfb_info *fbi = info->par;
+ int alpha, ret = 0;
+ unsigned int tmp;
+
+ switch (cmd) {
+ case IMXFB_ALPHA:
+ if (get_user(alpha, (int __user *)arg)) {
+ ret = -EFAULT;
+ } else {
+ tmp = readl(fbi->regs + LCDC_LGWCR);
+ tmp &= ~LGWCR_GWAV(0xff);
+ tmp |= LGWCR_GWAV(alpha);
+ if (!alpha)
+ tmp &= ~LGWCR_GWE;
+ else
+ tmp |= LGWCR_GWE;
+ writel(tmp , fbi->regs + LCDC_LGWCR);
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
static struct fb_ops imxfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = imxfb_check_var,
@@ -619,6 +653,7 @@ static struct fb_ops imxfb_ops = {
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
.fb_blank = imxfb_blank,
+ .fb_ioctl = imxfb_ioctl,
};
/*
diff --git a/include/linux/platform_data/video-imxfb.h b/include/linux/platform_data/video-imxfb.h
index 9de8f06..ce3875f 100644
--- a/include/linux/platform_data/video-imxfb.h
+++ b/include/linux/platform_data/video-imxfb.h
@@ -51,6 +51,9 @@
#define DMACR_HM(x) (((x) & 0xf) << 16)
#define DMACR_TM(x) ((x) & 0xf)
+#define IMXFB_IOW(num, dtype) _IOW('I', num, dtype)
+#define IMXFB_ALPHA IMXFB_IOW(31, int)
+
struct imx_fb_videomode {
struct fb_videomode mode;
u32 pcr;
--
1.8.1.4
^ permalink raw reply related
* [PATCH v2 2/2] video: imxfb: Add DT support
From: Markus Pargmann @ 2013-03-05 17:30 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1362504608-15839-1-git-send-email-mpa@pengutronix.de>
Add devicetree support for imx framebuffer driver. It uses the generic
display bindings and helper functions.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
---
Notes:
Changes in v2:
- Removed pwmr register property
- Cleanup of devicetree binding documentation
- Use default values for pwmr and lscr1
.../devicetree/bindings/video/fsl,imx-fb.txt | 49 ++++++
drivers/video/imxfb.c | 182 +++++++++++++++++----
2 files changed, 197 insertions(+), 34 deletions(-)
create mode 100644 Documentation/devicetree/bindings/video/fsl,imx-fb.txt
diff --git a/Documentation/devicetree/bindings/video/fsl,imx-fb.txt b/Documentation/devicetree/bindings/video/fsl,imx-fb.txt
new file mode 100644
index 0000000..e1a53a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/fsl,imx-fb.txt
@@ -0,0 +1,49 @@
+Freescale imx21 Framebuffer
+
+This framebuffer driver supports devices imx1, imx21, imx25, and imx27.
+
+Required properties:
+- compatible : "fsl,<chip>-fb", chip should be imx1 or imx21
+- reg : Should contain 1 register ranges(address and length)
+- interrupts : One interrupt of the fb dev
+
+Required nodes:
+- display: Phandle to a display node as described in
+ Documentation/devicetree/bindings/video/display-timing.txt
+ Additional, the display node has to define properties:
+ - bpp: Bits per pixel
+ - pcr: LCDC PCR value
+
+Optional properties:
+- dmacr-eukrea: Should be set for eukrea boards.
+
+Example:
+
+ imxfb: fb@10021000 {
+ compatible = "fsl,imx27-fb", "fsl,imx21-fb";
+ interrupts = <61>;
+ reg = <0x10021000 0x1000>;
+ display = <&display0>;
+ };
+
+ ...
+
+ display0: display0 {
+ model = "Primeview-PD050VL1";
+ native-mode = <&timing_disp0>;
+ bpp = <16>; /* non-standard but required */
+ pcr = <0xf0c88080>; /* non-standard but required */
+ display-timings {
+ timing_disp0: 640x480 {
+ hactive = <640>;
+ vactive = <480>;
+ hback-porch = <112>;
+ hfront-porch = <36>;
+ hsync-len = <32>;
+ vback-porch = <33>;
+ vfront-porch = <33>;
+ vsync-len = <2>;
+ clock-frequency = <25000000>;
+ };
+ };
+ };
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index ef2b587..be784ed 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -32,6 +32,12 @@
#include <linux/io.h>
#include <linux/math64.h>
#include <linux/uaccess.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+#include <video/videomode.h>
#include <linux/platform_data/video-imxfb.h>
@@ -117,10 +123,13 @@
#define LGWCR_GWAV(alpha) (((alpha) & 0xff) << 24)
#define LGWCR_GWE (1 << 22)
+#define IMXFB_LSCR1_DEFAULT 0x00120300
+#define IMXFB_DMACR_DEFAULT 0x00020010
+#define IMXFB_DMACR_EUKREA_DEFAULT 0x00040060
+
/* Used fb-mode. Can be set on kernel command line, therefore file-static. */
static const char *fb_mode;
-
/*
* These are the bitfields for each
* display depth that we support.
@@ -192,6 +201,19 @@ static struct platform_device_id imxfb_devtype[] = {
};
MODULE_DEVICE_TABLE(platform, imxfb_devtype);
+static struct of_device_id imxfb_of_dev_id[] = {
+ {
+ .compatible = "fsl,imx1-fb",
+ .data = &imxfb_devtype[IMX1_FB],
+ }, {
+ .compatible = "fsl,imx21-fb",
+ .data = &imxfb_devtype[IMX21_FB],
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(of, imxfb_of_dev_id);
+
static inline int is_imx1_fb(struct imxfb_info *fbi)
{
return fbi->devtype = IMX1_FB;
@@ -324,6 +346,9 @@ static const struct imx_fb_videomode *imxfb_find_mode(struct imxfb_info *fbi)
struct imx_fb_videomode *m;
int i;
+ if (!fb_mode)
+ return &fbi->mode[0];
+
for (i = 0, m = &fbi->mode[0]; i < fbi->num_modes; i++, m++) {
if (!strcmp(m->mode.name, fb_mode))
return m;
@@ -479,6 +504,9 @@ static int imxfb_bl_update_status(struct backlight_device *bl)
struct imxfb_info *fbi = bl_get_data(bl);
int brightness = bl->props.brightness;
+ if (!fbi->pwmr)
+ return 0;
+
if (bl->props.power != FB_BLANK_UNBLANK)
brightness = 0;
if (bl->props.fb_blank != FB_BLANK_UNBLANK)
@@ -719,7 +747,8 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
writel(fbi->pcr, fbi->regs + LCDC_PCR);
#ifndef PWMR_BACKLIGHT_AVAILABLE
- writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
+ if (fbi->pwmr)
+ writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
#endif
writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
@@ -758,13 +787,13 @@ static int imxfb_resume(struct platform_device *dev)
#define imxfb_resume NULL
#endif
-static int __init imxfb_init_fbinfo(struct platform_device *pdev)
+static int imxfb_init_fbinfo(struct platform_device *pdev)
{
struct imx_fb_platform_data *pdata = pdev->dev.platform_data;
struct fb_info *info = dev_get_drvdata(&pdev->dev);
struct imxfb_info *fbi = info->par;
- struct imx_fb_videomode *m;
- int i;
+ struct device_node *np;
+ int ret;
pr_debug("%s\n",__func__);
@@ -795,41 +824,89 @@ static int __init imxfb_init_fbinfo(struct platform_device *pdev)
info->fbops = &imxfb_ops;
info->flags = FBINFO_FLAG_DEFAULT |
FBINFO_READS_FAST;
- info->var.grayscale = pdata->cmap_greyscale;
- fbi->cmap_inverse = pdata->cmap_inverse;
- fbi->cmap_static = pdata->cmap_static;
- fbi->lscr1 = pdata->lscr1;
- fbi->dmacr = pdata->dmacr;
- fbi->pwmr = pdata->pwmr;
- fbi->lcd_power = pdata->lcd_power;
- fbi->backlight_power = pdata->backlight_power;
-
- for (i = 0, m = &pdata->mode[0]; i < pdata->num_modes; i++, m++)
- info->fix.smem_len = max_t(size_t, info->fix.smem_len,
- m->mode.xres * m->mode.yres * m->bpp / 8);
+ if (pdata) {
+ info->var.grayscale = pdata->cmap_greyscale;
+ fbi->cmap_inverse = pdata->cmap_inverse;
+ fbi->cmap_static = pdata->cmap_static;
+ fbi->lscr1 = pdata->lscr1;
+ fbi->dmacr = pdata->dmacr;
+ fbi->pwmr = pdata->pwmr;
+ fbi->lcd_power = pdata->lcd_power;
+ fbi->backlight_power = pdata->backlight_power;
+ } else {
+ np = pdev->dev.of_node;
+ info->var.grayscale = of_property_read_bool(np,
+ "cmap-greyscale");
+ fbi->cmap_inverse = of_property_read_bool(np, "cmap-inverse");
+ fbi->cmap_static = of_property_read_bool(np, "cmap-static");
+
+ fbi->lscr1 = IMXFB_LSCR1_DEFAULT;
+ if (of_property_read_bool(np, "dmacr-eukrea"))
+ fbi->dmacr = IMXFB_DMACR_EUKREA_DEFAULT;
+ else
+ fbi->dmacr = IMXFB_DMACR_DEFAULT;
+
+ /* These two function pointers could be used by some specific
+ * platforms. */
+ fbi->lcd_power = NULL;
+ fbi->backlight_power = NULL;
+ }
return 0;
}
-static int __init imxfb_probe(struct platform_device *pdev)
+static int imxfb_of_read_mode(struct device_node *np,
+ struct imx_fb_videomode *imxfb_mode)
+{
+ int ret;
+ struct fb_videomode *of_mode = &imxfb_mode->mode;
+ u32 bpp;
+ u32 pcr;
+
+ ret = of_property_read_string(np, "model", &of_mode->name);
+ if (ret)
+ of_mode->name = NULL;
+
+ ret = of_get_fb_videomode(np, of_mode, OF_USE_NATIVE_MODE);
+ if (ret)
+ return ret;
+
+ ret = of_property_read_u32(np, "bpp", &bpp);
+ ret |= of_property_read_u32(np, "pcr", &pcr);
+
+ if (ret)
+ return ret;
+
+ if (bpp > 255)
+ return -EINVAL;
+
+ imxfb_mode->bpp = bpp;
+ imxfb_mode->pcr = pcr;
+
+ return ret;
+}
+
+static int imxfb_probe(struct platform_device *pdev)
{
struct imxfb_info *fbi;
struct fb_info *info;
struct imx_fb_platform_data *pdata;
struct resource *res;
+ struct imx_fb_videomode *m;
+ const struct of_device_id *of_id;
int ret, i;
dev_info(&pdev->dev, "i.MX Framebuffer driver\n");
+ of_id = of_match_device(imxfb_of_dev_id, &pdev->dev);
+ if (of_id)
+ pdev->id_entry = of_id->data;
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
pdata = pdev->dev.platform_data;
- if (!pdata) {
- dev_err(&pdev->dev,"No platform_data available\n");
- return -ENOMEM;
- }
info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev);
if (!info)
@@ -837,15 +914,51 @@ static int __init imxfb_probe(struct platform_device *pdev)
fbi = info->par;
- if (!fb_mode)
- fb_mode = pdata->mode[0].mode.name;
-
platform_set_drvdata(pdev, info);
ret = imxfb_init_fbinfo(pdev);
if (ret < 0)
goto failed_init;
+ if (pdata) {
+ if (!fb_mode)
+ fb_mode = pdata->mode[0].mode.name;
+
+ fbi->mode = pdata->mode;
+ fbi->num_modes = pdata->num_modes;
+ } else {
+ struct device_node *display_np;
+ fb_mode = NULL;
+
+ display_np = of_parse_phandle(pdev->dev.of_node, "display", 0);
+ if (!display_np) {
+ dev_err(&pdev->dev, "No display defined in devicetree\n");
+ ret = -EINVAL;
+ goto failed_of_parse;
+ }
+
+ /*
+ * imxfb does not support more modes, we choose only the native
+ * mode.
+ */
+ fbi->num_modes = 1;
+
+ fbi->mode = devm_kzalloc(&pdev->dev,
+ sizeof(struct imx_fb_videomode), GFP_KERNEL);
+ if (!fbi->mode) {
+ ret = -ENOMEM;
+ goto failed_of_parse;
+ }
+
+ ret = imxfb_of_read_mode(display_np, fbi->mode);
+ if (ret)
+ goto failed_of_parse;
+ }
+
+ for (i = 0, m = &fbi->mode[0]; i < fbi->num_modes; i++, m++)
+ info->fix.smem_len = max_t(size_t, info->fix.smem_len,
+ m->mode.xres * m->mode.yres * m->bpp / 8);
+
res = request_mem_region(res->start, resource_size(res),
DRIVER_NAME);
if (!res) {
@@ -878,7 +991,8 @@ static int __init imxfb_probe(struct platform_device *pdev)
goto failed_ioremap;
}
- if (!pdata->fixed_screen_cpu) {
+ /* Seems not being used by anyone, so no support for oftree */
+ if (!pdata || !pdata->fixed_screen_cpu) {
fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
fbi->map_cpu = dma_alloc_writecombine(&pdev->dev,
fbi->map_size, &fbi->map_dma, GFP_KERNEL);
@@ -903,18 +1017,16 @@ static int __init imxfb_probe(struct platform_device *pdev)
info->fix.smem_start = fbi->screen_dma;
}
- if (pdata->init) {
+ if (pdata && pdata->init) {
ret = pdata->init(fbi->pdev);
if (ret)
goto failed_platform_init;
}
- fbi->mode = pdata->mode;
- fbi->num_modes = pdata->num_modes;
INIT_LIST_HEAD(&info->modelist);
- for (i = 0; i < pdata->num_modes; i++)
- fb_add_videomode(&pdata->mode[i].mode, &info->modelist);
+ for (i = 0; i < fbi->num_modes; i++)
+ fb_add_videomode(&fbi->mode[i].mode, &info->modelist);
/*
* This makes sure that our colour bitfield
@@ -944,10 +1056,10 @@ static int __init imxfb_probe(struct platform_device *pdev)
failed_register:
fb_dealloc_cmap(&info->cmap);
failed_cmap:
- if (pdata->exit)
+ if (pdata && pdata->exit)
pdata->exit(fbi->pdev);
failed_platform_init:
- if (!pdata->fixed_screen_cpu)
+ if (pdata && !pdata->fixed_screen_cpu)
dma_free_writecombine(&pdev->dev,fbi->map_size,fbi->map_cpu,
fbi->map_dma);
failed_map:
@@ -956,6 +1068,7 @@ failed_ioremap:
failed_getclock:
release_mem_region(res->start, resource_size(res));
failed_req:
+failed_of_parse:
kfree(info->pseudo_palette);
failed_init:
platform_set_drvdata(pdev, NULL);
@@ -980,7 +1093,7 @@ static int imxfb_remove(struct platform_device *pdev)
unregister_framebuffer(info);
pdata = pdev->dev.platform_data;
- if (pdata->exit)
+ if (pdata && pdata->exit)
pdata->exit(fbi->pdev);
fb_dealloc_cmap(&info->cmap);
@@ -1009,6 +1122,7 @@ static struct platform_driver imxfb_driver = {
.shutdown = imxfb_shutdown,
.driver = {
.name = DRIVER_NAME,
+ .of_match_table = imxfb_of_dev_id,
},
.id_table = imxfb_devtype,
};
--
1.8.1.4
^ permalink raw reply related
* [PATCH] video: uvesafb: Remove redundant NULL check before kfree
From: Syam Sidhardhan @ 2013-03-05 19:50 UTC (permalink / raw)
To: linux-fbdev
kfree on NULL pointer is a no-op.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
---
drivers/video/uvesafb.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b75db01..7ac0ce6 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -236,8 +236,7 @@ out:
static void uvesafb_free(struct uvesafb_ktask *task)
{
if (task) {
- if (task->done)
- kfree(task->done);
+ kfree(task->done);
kfree(task);
}
}
@@ -1335,8 +1334,8 @@ setmode:
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
info->fix.line_length = mode->bytes_per_scan_line;
-out: if (crtc != NULL)
- kfree(crtc);
+out:
+ kfree(crtc);
uvesafb_free(task);
return err;
@@ -1833,8 +1832,7 @@ out_mode:
fb_destroy_modedb(info->monspecs.modedb);
fb_dealloc_cmap(&info->cmap);
out:
- if (par->vbe_modes)
- kfree(par->vbe_modes);
+ kfree(par->vbe_modes);
framebuffer_release(info);
return err;
@@ -1856,12 +1854,9 @@ static int uvesafb_remove(struct platform_device *dev)
fb_dealloc_cmap(&info->cmap);
if (par) {
- if (par->vbe_modes)
- kfree(par->vbe_modes);
- if (par->vbe_state_orig)
- kfree(par->vbe_state_orig);
- if (par->vbe_state_saved)
- kfree(par->vbe_state_saved);
+ kfree(par->vbe_modes);
+ kfree(par->vbe_state_orig);
+ kfree(par->vbe_state_saved);
}
framebuffer_release(info);
--
1.7.9.5
^ permalink raw reply related
* [PATCH 1/2] video: ssd1307fb: Add support for SSD1306 OLED controller
From: Maxime Ripard @ 2013-03-06 16:44 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <1362588251-1824-1-git-send-email-maxime.ripard@free-electrons.com>
The Solomon SSD1306 OLED controller is very similar to the SSD1307,
except for the fact that the power is given through an external PWM for
the 1307, and while the 1306 can generate its own power without any PWM.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
.../devicetree/bindings/video/ssd1307fb.txt | 10 +-
drivers/video/ssd1307fb.c | 267 ++++++++++++++------
2 files changed, 203 insertions(+), 74 deletions(-)
diff --git a/Documentation/devicetree/bindings/video/ssd1307fb.txt b/Documentation/devicetree/bindings/video/ssd1307fb.txt
index 3d0060c..7a12542 100644
--- a/Documentation/devicetree/bindings/video/ssd1307fb.txt
+++ b/Documentation/devicetree/bindings/video/ssd1307fb.txt
@@ -1,13 +1,17 @@
* Solomon SSD1307 Framebuffer Driver
Required properties:
- - compatible: Should be "solomon,ssd1307fb-<bus>". The only supported bus for
- now is i2c.
+ - compatible: Should be "solomon,<chip>fb-<bus>". The only supported bus for
+ now is i2c, and the supported chips are ssd1306 and ssd1307.
- reg: Should contain address of the controller on the I2C bus. Most likely
0x3c or 0x3d
- pwm: Should contain the pwm to use according to the OF device tree PWM
- specification [0]
+ specification [0]. Only required for the ssd1307.
- reset-gpios: Should contain the GPIO used to reset the OLED display
+ - solomon,height: Height in pixel of the screen driven by the controller
+ - solomon,width: Width in pixel of the screen driven by the controller
+ - solomon,page-offset: Offset of pages (band of 8 pixels) that the screen is
+ mapped to.
Optional properties:
- reset-active-low: Is the reset gpio is active on physical low?
diff --git a/drivers/video/ssd1307fb.c b/drivers/video/ssd1307fb.c
index 395cb6a..95f76e2 100644
--- a/drivers/video/ssd1307fb.c
+++ b/drivers/video/ssd1307fb.c
@@ -16,24 +16,39 @@
#include <linux/pwm.h>
#include <linux/delay.h>
-#define SSD1307FB_WIDTH 96
-#define SSD1307FB_HEIGHT 16
-
#define SSD1307FB_DATA 0x40
#define SSD1307FB_COMMAND 0x80
#define SSD1307FB_CONTRAST 0x81
+#define SSD1307FB_CHARGE_PUMP 0x8d
#define SSD1307FB_SEG_REMAP_ON 0xa1
#define SSD1307FB_DISPLAY_OFF 0xae
+#define SSD1307FB_SET_MULTIPLEX_RATIO 0xa8
#define SSD1307FB_DISPLAY_ON 0xaf
#define SSD1307FB_START_PAGE_ADDRESS 0xb0
+#define SSD1307FB_SET_DISPLAY_OFFSET 0xd3
+#define SSD1307FB_SET_CLOCK_FREQ 0xd5
+#define SSD1307FB_SET_PRECHARGE_PERIOD 0xd9
+#define SSD1307FB_SET_COM_PINS_CONFIG 0xda
+#define SSD1307FB_SET_VCOMH 0xdb
+
+struct ssd1307fb_par;
+
+struct ssd1307fb_ops {
+ int (*init)(struct ssd1307fb_par *);
+ int (*remove)(struct ssd1307fb_par *);
+};
struct ssd1307fb_par {
struct i2c_client *client;
+ u32 height;
struct fb_info *info;
+ struct ssd1307fb_ops *ops;
+ u32 page_offset;
struct pwm_device *pwm;
u32 pwm_period;
int reset;
+ u32 width;
};
static struct fb_fix_screeninfo ssd1307fb_fix = {
@@ -43,15 +58,10 @@ static struct fb_fix_screeninfo ssd1307fb_fix = {
.xpanstep = 0,
.ypanstep = 0,
.ywrapstep = 0,
- .line_length = SSD1307FB_WIDTH / 8,
.accel = FB_ACCEL_NONE,
};
static struct fb_var_screeninfo ssd1307fb_var = {
- .xres = SSD1307FB_WIDTH,
- .yres = SSD1307FB_HEIGHT,
- .xres_virtual = SSD1307FB_WIDTH,
- .yres_virtual = SSD1307FB_HEIGHT,
.bits_per_pixel = 1,
};
@@ -134,16 +144,16 @@ static void ssd1307fb_update_display(struct ssd1307fb_par *par)
* (5) A4 B4 C4 D4 E4 F4 G4 H4
*/
- for (i = 0; i < (SSD1307FB_HEIGHT / 8); i++) {
- ssd1307fb_write_cmd(par->client, SSD1307FB_START_PAGE_ADDRESS + (i + 1));
+ for (i = 0; i < (par->height / 8); i++) {
+ ssd1307fb_write_cmd(par->client, SSD1307FB_START_PAGE_ADDRESS + i + par->page_offset);
ssd1307fb_write_cmd(par->client, 0x00);
ssd1307fb_write_cmd(par->client, 0x10);
- for (j = 0; j < SSD1307FB_WIDTH; j++) {
+ for (j = 0; j < par->width; j++) {
u8 buf = 0;
for (k = 0; k < 8; k++) {
- u32 page_length = SSD1307FB_WIDTH * i;
- u32 index = page_length + (SSD1307FB_WIDTH * k + j) / 8;
+ u32 page_length = par->width * i;
+ u32 index = page_length + (par->width * k + j) / 8;
u8 byte = *(vmem + index);
u8 bit = byte & (1 << (j % 8));
bit = bit >> (j % 8);
@@ -227,16 +237,137 @@ static struct fb_deferred_io ssd1307fb_defio = {
.deferred_io = ssd1307fb_deferred_io,
};
+static int ssd1307fb_ssd1307_init(struct ssd1307fb_par *par) {
+ int ret;
+
+ par->pwm = pwm_get(&par->client->dev, NULL);
+ if (IS_ERR(par->pwm)) {
+ dev_err(&par->client->dev, "Could not get PWM from device tree!\n");
+ return PTR_ERR(par->pwm);
+ }
+
+ par->pwm_period = pwm_get_period(par->pwm);
+ /* Enable the PWM */
+ pwm_config(par->pwm, par->pwm_period / 2, par->pwm_period);
+ pwm_enable(par->pwm);
+
+ dev_dbg(&par->client->dev, "Using PWM%d with a %dns period.\n", par->pwm->pwm, par->pwm_period);
+
+ /* Map column 127 of the OLED to segment 0 */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SEG_REMAP_ON);
+ if (ret < 0)
+ return ret;
+
+ /* Turn on the display */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int ssd1307fb_ssd1307_remove(struct ssd1307fb_par *par) {
+ pwm_disable(par->pwm);
+ pwm_put(par->pwm);
+ return 0;
+}
+
+static struct ssd1307fb_ops ssd1307fb_ssd1307_ops = {
+ .init = ssd1307fb_ssd1307_init,
+ .remove = ssd1307fb_ssd1307_remove,
+};
+
+static int ssd1307fb_ssd1306_init(struct ssd1307fb_par *par) {
+ int ret;
+
+ /* Set initial contrast */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_CONTRAST);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0x7f);
+ if (ret < 0)
+ return ret;
+
+ /* Set COM direction */
+ ret = ssd1307fb_write_cmd(par->client, 0xc8);
+ if (ret < 0)
+ return ret;
+
+ /* Set segment re-map */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SEG_REMAP_ON);
+ if (ret < 0)
+ return ret;
+
+ /* Set multiplex ratio value */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_MULTIPLEX_RATIO);
+ ret = ret & ssd1307fb_write_cmd(par->client, par->height - 1);
+ if (ret < 0)
+ return ret;
+
+ /* set display offset value */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_DISPLAY_OFFSET);
+ ret = ssd1307fb_write_cmd(par->client, 0x20);
+ if (ret < 0)
+ return ret;
+
+ /* Set clock frequency */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_CLOCK_FREQ);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0xf0);
+ if (ret < 0)
+ return ret;
+
+ /* Set precharge period in number of ticks from the internal clock */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_PRECHARGE_PERIOD);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0x22);
+ if (ret < 0)
+ return ret;
+
+ /* Set COM pins configuration */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_COM_PINS_CONFIG);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0x22);
+ if (ret < 0)
+ return ret;
+
+ /* Set VCOMH */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_SET_VCOMH);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0x49);
+ if (ret < 0)
+ return ret;
+
+ /* Turn on the DC-DC Charge Pump */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_CHARGE_PUMP);
+ ret = ret & ssd1307fb_write_cmd(par->client, 0x14);
+ if (ret < 0)
+ return ret;
+
+ /* Turn on the display */
+ ret = ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct ssd1307fb_ops ssd1307fb_ssd1306_ops = {
+ .init = ssd1307fb_ssd1306_init,
+};
+
+static const struct of_device_id ssd1307fb_of_match[] = {
+ { .compatible = "solomon,ssd1306fb-i2c", .data = (void*)&ssd1307fb_ssd1306_ops },
+ { .compatible = "solomon,ssd1307fb-i2c", .data = (void*)&ssd1307fb_ssd1307_ops },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ssd1307fb_of_match);
+
static int ssd1307fb_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct fb_info *info;
- u32 vmem_size = SSD1307FB_WIDTH * SSD1307FB_HEIGHT / 8;
+ struct device_node *node = client->dev.of_node;
+ u32 vmem_size;
struct ssd1307fb_par *par;
u8 *vmem;
int ret;
- if (!client->dev.of_node) {
+ if (!node) {
dev_err(&client->dev, "No device tree data found!\n");
return -EINVAL;
}
@@ -247,6 +378,36 @@ static int ssd1307fb_probe(struct i2c_client *client,
return -ENOMEM;
}
+ par = info->par;
+ par->info = info;
+ par->client = client;
+
+ par->ops = (struct ssd1307fb_ops*)of_match_device(ssd1307fb_of_match, &client->dev)->data;
+
+ par->reset = of_get_named_gpio(client->dev.of_node,
+ "reset-gpios", 0);
+ if (!gpio_is_valid(par->reset)) {
+ ret = -EINVAL;
+ goto fb_alloc_error;
+ }
+
+ if (of_property_read_u32(node, "solomon,width", &par->width))
+ par->width = 96;
+
+ printk("Width\t%u\n", par->width);
+
+ if (of_property_read_u32(node, "solomon,height", &par->height))
+ par->width = 16;
+
+ printk("Height\t%u\n", par->height);
+
+ if (of_property_read_u32(node, "solomon,page-offset", &par->page_offset))
+ par->page_offset = 1;
+
+ printk("Offset\t%u\n", par->page_offset);
+
+ vmem_size = par->width * par->height / 8;
+
vmem = devm_kzalloc(&client->dev, vmem_size, GFP_KERNEL);
if (!vmem) {
dev_err(&client->dev, "Couldn't allocate graphical memory.\n");
@@ -256,9 +417,15 @@ static int ssd1307fb_probe(struct i2c_client *client,
info->fbops = &ssd1307fb_ops;
info->fix = ssd1307fb_fix;
+ info->fix.line_length = par->width / 8;
info->fbdefio = &ssd1307fb_defio;
info->var = ssd1307fb_var;
+ info->var.xres = par->width;
+ info->var.xres_virtual = par->width;
+ info->var.yres = par->height;
+ info->var.yres_virtual = par->height;
+
info->var.red.length = 1;
info->var.red.offset = 0;
info->var.green.length = 1;
@@ -272,17 +439,6 @@ static int ssd1307fb_probe(struct i2c_client *client,
fb_deferred_io_init(info);
- par = info->par;
- par->info = info;
- par->client = client;
-
- par->reset = of_get_named_gpio(client->dev.of_node,
- "reset-gpios", 0);
- if (!gpio_is_valid(par->reset)) {
- ret = -EINVAL;
- goto reset_oled_error;
- }
-
ret = devm_gpio_request_one(&client->dev, par->reset,
GPIOF_OUT_INIT_HIGH,
"oled-reset");
@@ -293,23 +449,6 @@ static int ssd1307fb_probe(struct i2c_client *client,
goto reset_oled_error;
}
- par->pwm = pwm_get(&client->dev, NULL);
- if (IS_ERR(par->pwm)) {
- dev_err(&client->dev, "Could not get PWM from device tree!\n");
- ret = PTR_ERR(par->pwm);
- goto pwm_error;
- }
-
- par->pwm_period = pwm_get_period(par->pwm);
-
- dev_dbg(&client->dev, "Using PWM%d with a %dns period.\n", par->pwm->pwm, par->pwm_period);
-
- ret = register_framebuffer(info);
- if (ret) {
- dev_err(&client->dev, "Couldn't register the framebuffer\n");
- goto fbreg_error;
- }
-
i2c_set_clientdata(client, info);
/* Reset the screen */
@@ -318,34 +457,25 @@ static int ssd1307fb_probe(struct i2c_client *client,
gpio_set_value(par->reset, 1);
udelay(4);
- /* Enable the PWM */
- pwm_config(par->pwm, par->pwm_period / 2, par->pwm_period);
- pwm_enable(par->pwm);
-
- /* Map column 127 of the OLED to segment 0 */
- ret = ssd1307fb_write_cmd(client, SSD1307FB_SEG_REMAP_ON);
- if (ret < 0) {
- dev_err(&client->dev, "Couldn't remap the screen.\n");
- goto remap_error;
+ if (par->ops->init) {
+ ret = par->ops->init(par);
+ if (ret)
+ goto reset_oled_error;
}
- /* Turn on the display */
- ret = ssd1307fb_write_cmd(client, SSD1307FB_DISPLAY_ON);
- if (ret < 0) {
- dev_err(&client->dev, "Couldn't turn the display on.\n");
- goto remap_error;
+ ret = register_framebuffer(info);
+ if (ret) {
+ dev_err(&client->dev, "Couldn't register the framebuffer\n");
+ goto panel_init_error;
}
dev_info(&client->dev, "fb%d: %s framebuffer device registered, using %d bytes of video memory\n", info->node, info->fix.id, vmem_size);
return 0;
-remap_error:
- unregister_framebuffer(info);
- pwm_disable(par->pwm);
-fbreg_error:
- pwm_put(par->pwm);
-pwm_error:
+panel_init_error:
+ if (par->ops->remove)
+ par->ops->remove(par);
reset_oled_error:
fb_deferred_io_cleanup(info);
fb_alloc_error:
@@ -359,8 +489,8 @@ static int ssd1307fb_remove(struct i2c_client *client)
struct ssd1307fb_par *par = info->par;
unregister_framebuffer(info);
- pwm_disable(par->pwm);
- pwm_put(par->pwm);
+ if (par->ops->remove)
+ par->ops->remove(par);
fb_deferred_io_cleanup(info);
framebuffer_release(info);
@@ -368,17 +498,12 @@ static int ssd1307fb_remove(struct i2c_client *client)
}
static const struct i2c_device_id ssd1307fb_i2c_id[] = {
+ { "ssd1306fb", 0 },
{ "ssd1307fb", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ssd1307fb_i2c_id);
-static const struct of_device_id ssd1307fb_of_match[] = {
- { .compatible = "solomon,ssd1307fb-i2c" },
- {},
-};
-MODULE_DEVICE_TABLE(of, ssd1307fb_of_match);
-
static struct i2c_driver ssd1307fb_driver = {
.probe = ssd1307fb_probe,
.remove = ssd1307fb_remove,
--
1.7.10.4
^ permalink raw reply related
* [PATCH v1] video: uvesafb: Remove redundant NULL check before kfree
From: syamsidhardh @ 2013-03-06 20:55 UTC (permalink / raw)
To: linux-fbdev
From: Syam Sidhardhan <s.syam@samsung.com>
kfree on NULL pointer is a no-op.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
---
v1 -> Corrected the from address.
drivers/video/uvesafb.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b75db01..7ac0ce6 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -236,8 +236,7 @@ out:
static void uvesafb_free(struct uvesafb_ktask *task)
{
if (task) {
- if (task->done)
- kfree(task->done);
+ kfree(task->done);
kfree(task);
}
}
@@ -1335,8 +1334,8 @@ setmode:
FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
info->fix.line_length = mode->bytes_per_scan_line;
-out: if (crtc != NULL)
- kfree(crtc);
+out:
+ kfree(crtc);
uvesafb_free(task);
return err;
@@ -1833,8 +1832,7 @@ out_mode:
fb_destroy_modedb(info->monspecs.modedb);
fb_dealloc_cmap(&info->cmap);
out:
- if (par->vbe_modes)
- kfree(par->vbe_modes);
+ kfree(par->vbe_modes);
framebuffer_release(info);
return err;
@@ -1856,12 +1854,9 @@ static int uvesafb_remove(struct platform_device *dev)
fb_dealloc_cmap(&info->cmap);
if (par) {
- if (par->vbe_modes)
- kfree(par->vbe_modes);
- if (par->vbe_state_orig)
- kfree(par->vbe_state_orig);
- if (par->vbe_state_saved)
- kfree(par->vbe_state_saved);
+ kfree(par->vbe_modes);
+ kfree(par->vbe_state_orig);
+ kfree(par->vbe_state_saved);
}
framebuffer_release(info);
--
1.7.9.5
^ permalink raw reply related
* Re: [PATCH 0/5] at91: atmel_lcdfb: regression fixes and cpu_is removal
From: Nicolas Ferre @ 2013-03-08 9:37 UTC (permalink / raw)
To: linux-arm-kernel
In-Reply-To: <CAMgPeKV4=C_msvZixVS-o3-QHaJxZP7T4EwLa9vnmYgVheXHgQ@mail.gmail.com>
On 02/10/2013 07:45 PM, Johan Hovold :
> On Sun, Feb 10, 2013 at 1:47 AM, Olof Johansson <olof@lixom.net> wrote:
>> On Fri, Feb 08, 2013 at 05:35:13PM +0100, Nicolas Ferre wrote:
>>> These patches fix a regression in 16-bpp support for older SOCs which
>>> use IBGR:555 rather than BGR:565 pixel layout. Use SOC-type to
>>> determine if the controller uses the intensity-bit and restore the
>>> old layout in that case.
>>>
>>> The last patch is a removal of uses of cpu_is_xxxx() macros in
>>> atmel_lcdfb with a platform-device-id table and static
>>> configurations.
>>>
>>>
>>> Patches from Johan Hovold taken from: "[PATCH 0/3] atmel_lcdfb: fix
>>> 16-bpp regression" and "[PATCH v2 0/3] ARM: at91/avr32/atmel_lcdfb:
>>> remove cpu_is macros" patch series to form a clean patch series with
>>> my signature.
>>>
>>> Arnd, Olof, as it seems that old fbdev drivers are not so much
>>> reviewed those days, can we take the decision to queue this material
>>> through arm-soc with other AT91 drivers updates?
>>
>> It would be beneficial to get an ack from Florian. Was he involved in
>> the review of the code that regressed 16-bpp support in the first
>> place? When was the regression introduced?
>
> In v3.4 by commit 787f9fd2328 ("atmel_lcdfb: support 16bit BGR:565 mode,
> remove unsupported 15bit modes").
Arnd, Olof,
Please tell me if I can do something to ease the adoption of these
patches during 3.9-rc timeframe (I can rebase it on top of 3.9-rc1 to
avoid any conflict: the file board-neocore926.c was removed during the
merge window).
Johan has written the series a long time ago and we still do not have it
in mainline.
If the option to ask Andrew is better in your opinion, please tell me.
Best regards,
--
Nicolas Ferre
^ permalink raw reply
* [PATCH 00/20] OMAPDSS: misc improvements
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
Hi,
Here are a bunch of misc patches, created when working on improving DSS device
model. Most notable is the recommended_channel stuff, which removes the need to
pass LCD channel from the board file, which has been rather problematic.
Two of the patches are marked LATER, as they affect the board files. They're
pure cleanups, and can be sent after the rest are merged.
Tomi
Tomi Valkeinen (20):
OMAPDSS: DSI: remove DSI & DISPC clk divisors from dssdev
OMAPDSS: HDMI: remove HDMI clk divisors from dssdev
OMAPDSS: DPI: remove omap_dss_device uses
OMAPDSS: DSI: remove omap_dss_device uses
OMAPDSS: Taal: remove multi-panel support
OMAPDSS: APPLY: remove dssdev from dss_mgr_wait_for_vsync
OMAPDSS: add missing export for omap_dss_get_output()
OMAPDSS: HDMI: init output earlier
OMAPDSS: add output->name
OMAPDSS: Resolve channels for outputs
OMAPDSS: add output->recommended_channel
OMAPDSS: DPI: use output->recommended_channel
OMAPFB: use output->recommended_channel
OMAPDSS: remove dssdev->channel assignments
OMAP: dss-common.c: remove uses of dss channel (LATER)
OMAPDSS: omapdss.h: remove channel field from omap_dss_device (LATER)
OMAPDSS: add pdata->default_display_name
OMAPDSS: DSI: delay dispc initialization
OMAPDSS: DSI: fix DSI channel source initialization
OMAPDSS: Taal: remove rotate & mirror support
arch/arm/mach-omap2/dss-common.c | 6 -
drivers/video/omap2/displays/panel-taal.c | 279 ++---------------------------
drivers/video/omap2/dss/apply.c | 15 +-
drivers/video/omap2/dss/core.c | 2 +
drivers/video/omap2/dss/dpi.c | 74 +++++---
drivers/video/omap2/dss/dsi.c | 219 +++++++++++++---------
drivers/video/omap2/dss/hdmi.c | 19 +-
drivers/video/omap2/dss/output.c | 1 +
drivers/video/omap2/dss/rfbi.c | 2 +
drivers/video/omap2/dss/sdi.c | 2 +
drivers/video/omap2/dss/venc.c | 4 +-
drivers/video/omap2/omapfb/omapfb-main.c | 2 +-
include/video/omapdss.h | 38 +---
13 files changed, 235 insertions(+), 428 deletions(-)
--
1.7.10.4
^ permalink raw reply
* [PATCH 01/20] OMAPDSS: DSI: remove DSI & DISPC clk divisors from dssdev
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
struct omap_dss_device contains DSS clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.
This patch removes the divisors from omap_dss_device, and their uses
from the dsi driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dsi.c | 47 +++++++++++++++++++++++------------------
include/video/omapdss.h | 21 ------------------
2 files changed, 26 insertions(+), 42 deletions(-)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 28d41d1..9eb7845 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -261,6 +261,13 @@ struct dsi_data {
struct clk *dss_clk;
struct clk *sys_clk;
+ struct dispc_clock_info user_dispc_cinfo;
+ struct dsi_clock_info user_dsi_cinfo;
+
+ enum omap_dss_clk_source user_dispc_fclk_src;
+ enum omap_dss_clk_source user_lcd_clk_src;
+ enum omap_dss_clk_source user_dsi_fclk_src;
+
struct dsi_clock_info current_cinfo;
bool vdds_dsi_enabled;
@@ -1200,7 +1207,7 @@ static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev)
unsigned lp_clk_div;
unsigned long lp_clk;
- lp_clk_div = dssdev->clocks.dsi.lp_clk_div;
+ lp_clk_div = dsi->user_dsi_cinfo.lp_clk_div;
if (lp_clk_div = 0 || lp_clk_div > dsi->lpdiv_max)
return -EINVAL;
@@ -3910,7 +3917,7 @@ static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev)
struct omap_video_timings *timings = &dsi->timings;
int bpp = dsi_get_pixel_size(dsi->pix_fmt);
int ndl = dsi->num_lanes_used - 1;
- int dsi_fclk_hsdiv = dssdev->clocks.dsi.regm_dsi + 1;
+ int dsi_fclk_hsdiv = dsi->user_dsi_cinfo.regm_dsi + 1;
int hsa_interleave_hs = 0, hsa_interleave_lp = 0;
int hfp_interleave_hs = 0, hfp_interleave_lp = 0;
int hbp_interleave_hs = 0, hbp_interleave_lp = 0;
@@ -4302,24 +4309,24 @@ int omapdss_dsi_set_clocks(struct omap_dss_device *dssdev,
dsi_fclk = cinfo.dsi_pll_hsdiv_dsi_clk;
lp_clk_div = DIV_ROUND_UP(dsi_fclk, lp_clk * 2);
- dssdev->clocks.dsi.regn = cinfo.regn;
- dssdev->clocks.dsi.regm = cinfo.regm;
- dssdev->clocks.dsi.regm_dispc = cinfo.regm_dispc;
- dssdev->clocks.dsi.regm_dsi = cinfo.regm_dsi;
+ dsi->user_dsi_cinfo.regn = cinfo.regn;
+ dsi->user_dsi_cinfo.regm = cinfo.regm;
+ dsi->user_dsi_cinfo.regm_dispc = cinfo.regm_dispc;
+ dsi->user_dsi_cinfo.regm_dsi = cinfo.regm_dsi;
- dssdev->clocks.dsi.lp_clk_div = lp_clk_div;
+ dsi->user_dsi_cinfo.lp_clk_div = lp_clk_div;
- dssdev->clocks.dispc.channel.lck_div = dispc_cinfo.lck_div;
- dssdev->clocks.dispc.channel.pck_div = dispc_cinfo.pck_div;
+ dsi->user_dispc_cinfo.lck_div = dispc_cinfo.lck_div;
+ dsi->user_dispc_cinfo.pck_div = dispc_cinfo.pck_div;
- dssdev->clocks.dispc.dispc_fclk_src = OMAP_DSS_CLK_SRC_FCK;
+ dsi->user_dispc_fclk_src = OMAP_DSS_CLK_SRC_FCK;
- dssdev->clocks.dispc.channel.lcd_clk_src + dsi->user_lcd_clk_src dsi->module_id = 0 ?
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC :
OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC;
- dssdev->clocks.dsi.dsi_fclk_src + dsi->user_dsi_fclk_src dsi->module_id = 0 ?
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI :
OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI;
@@ -4589,8 +4596,8 @@ static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev)
fck = dsi_get_pll_hsdiv_dispc_rate(dsidev);
- dispc_cinfo.lck_div = dssdev->clocks.dispc.channel.lck_div;
- dispc_cinfo.pck_div = dssdev->clocks.dispc.channel.pck_div;
+ dispc_cinfo.lck_div = dsi->user_dispc_cinfo.lck_div;
+ dispc_cinfo.pck_div = dsi->user_dispc_cinfo.pck_div;
r = dispc_calc_clock_rates(fck, &dispc_cinfo);
if (r) {
@@ -4679,13 +4686,12 @@ static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+ struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
struct dsi_clock_info cinfo;
int r;
- cinfo.regn = dssdev->clocks.dsi.regn;
- cinfo.regm = dssdev->clocks.dsi.regm;
- cinfo.regm_dispc = dssdev->clocks.dsi.regm_dispc;
- cinfo.regm_dsi = dssdev->clocks.dsi.regm_dsi;
+ cinfo = dsi->user_dsi_cinfo;
+
r = dsi_calc_clock_rates(dsidev, &cinfo);
if (r) {
DSSERR("Failed to calc dsi clocks\n");
@@ -4716,9 +4722,8 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
if (r)
goto err1;
- dss_select_dsi_clk_source(dsi->module_id, dssdev->clocks.dsi.dsi_fclk_src);
- dss_select_lcd_clk_source(mgr->id,
- dssdev->clocks.dispc.channel.lcd_clk_src);
+ dss_select_dsi_clk_source(dsi->module_id, dsi->user_dsi_fclk_src);
+ dss_select_lcd_clk_source(mgr->id, dsi->user_lcd_clk_src);
DSSDBG("PLL OK\n");
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index caefa09..255bcf5 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -592,27 +592,6 @@ struct omap_dss_device {
struct {
struct {
- struct {
- u16 lck_div;
- u16 pck_div;
- enum omap_dss_clk_source lcd_clk_src;
- } channel;
-
- enum omap_dss_clk_source dispc_fclk_src;
- } dispc;
-
- struct {
- /* regn is one greater than TRM's REGN value */
- u16 regn;
- u16 regm;
- u16 regm_dispc;
- u16 regm_dsi;
-
- u16 lp_clk_div;
- enum omap_dss_clk_source dsi_fclk_src;
- } dsi;
-
- struct {
/* regn is one greater than TRM's REGN value */
u16 regn;
u16 regm2;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 02/20] OMAPDSS: HDMI: remove HDMI clk divisors from dssdev
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
struct omap_dss_device contains HDMI clock divisors. The idea is that the
board file can pass precalculated divisors to the display driver.
However, these divsors are no longer needed, as the omapdss driver can
calculate the divisors during runtime.
This patch removes the divisors from omap_dss_device, and their uses
from the hdmi driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/hdmi.c | 11 +++--------
include/video/omapdss.h | 8 --------
2 files changed, 3 insertions(+), 16 deletions(-)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 769d082..e5682ae 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -472,17 +472,12 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
* Input clock is predivided by N + 1
* out put of which is reference clk
*/
- if (dssdev->clocks.hdmi.regn = 0)
- pi->regn = HDMI_DEFAULT_REGN;
- else
- pi->regn = dssdev->clocks.hdmi.regn;
+
+ pi->regn = HDMI_DEFAULT_REGN;
refclk = clkin / pi->regn;
- if (dssdev->clocks.hdmi.regm2 = 0)
- pi->regm2 = HDMI_DEFAULT_REGM2;
- else
- pi->regm2 = dssdev->clocks.hdmi.regm2;
+ pi->regm2 = HDMI_DEFAULT_REGM2;
/*
* multiplier is pixel_clk/ref_clk
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 255bcf5..2cb2b0e 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -591,14 +591,6 @@ struct omap_dss_device {
} phy;
struct {
- struct {
- /* regn is one greater than TRM's REGN value */
- u16 regn;
- u16 regm2;
- } hdmi;
- } clocks;
-
- struct {
struct omap_video_timings timings;
enum omap_dss_dsi_pixel_format dsi_pix_fmt;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 03/20] OMAPDSS: DPI: remove omap_dss_device uses
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
The role of struct omap_dss_device will change in the future. The exact
details of that are still a bit unclear. However, the less uses of
omap_dss_device we have, the easier the change is in the future.
This patch removes uses of omap_dss_device from dpi.c, where it can be
done neatly, by, for example, passing some lower level parameter in
function parameters.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 35 +++++++++++++++--------------------
1 file changed, 15 insertions(+), 20 deletions(-)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 4af136a..cb6b280 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -91,11 +91,10 @@ static enum omap_dss_clk_source dpi_get_alt_clk_src(enum omap_channel channel)
}
}
-static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
+static int dpi_set_dsi_clk(enum omap_channel channel,
unsigned long pck_req, unsigned long *fck, int *lck_div,
int *pck_div)
{
- struct omap_overlay_manager *mgr = dssdev->output->manager;
struct dsi_clock_info dsi_cinfo;
struct dispc_clock_info dispc_cinfo;
int r;
@@ -109,8 +108,8 @@ static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
if (r)
return r;
- dss_select_lcd_clk_source(mgr->id,
- dpi_get_alt_clk_src(mgr->id));
+ dss_select_lcd_clk_source(channel,
+ dpi_get_alt_clk_src(channel));
dpi.mgr_config.clock_info = dispc_cinfo;
@@ -121,9 +120,8 @@ static int dpi_set_dsi_clk(struct omap_dss_device *dssdev,
return 0;
}
-static int dpi_set_dispc_clk(struct omap_dss_device *dssdev,
- unsigned long pck_req, unsigned long *fck, int *lck_div,
- int *pck_div)
+static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck,
+ int *lck_div, int *pck_div)
{
struct dss_clock_info dss_cinfo;
struct dispc_clock_info dispc_cinfo;
@@ -146,20 +144,19 @@ static int dpi_set_dispc_clk(struct omap_dss_device *dssdev,
return 0;
}
-static int dpi_set_mode(struct omap_dss_device *dssdev)
+static int dpi_set_mode(struct omap_overlay_manager *mgr)
{
struct omap_video_timings *t = &dpi.timings;
- struct omap_overlay_manager *mgr = dssdev->output->manager;
int lck_div = 0, pck_div = 0;
unsigned long fck = 0;
unsigned long pck;
int r = 0;
if (dpi.dsidev)
- r = dpi_set_dsi_clk(dssdev, t->pixel_clock * 1000, &fck,
+ r = dpi_set_dsi_clk(mgr->id, t->pixel_clock * 1000, &fck,
&lck_div, &pck_div);
else
- r = dpi_set_dispc_clk(dssdev, t->pixel_clock * 1000, &fck,
+ r = dpi_set_dispc_clk(t->pixel_clock * 1000, &fck,
&lck_div, &pck_div);
if (r)
return r;
@@ -179,10 +176,8 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)
return 0;
}
-static void dpi_config_lcd_manager(struct omap_dss_device *dssdev)
+static void dpi_config_lcd_manager(struct omap_overlay_manager *mgr)
{
- struct omap_overlay_manager *mgr = dssdev->output->manager;
-
dpi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
dpi.mgr_config.stallmode = false;
@@ -197,7 +192,7 @@ static void dpi_config_lcd_manager(struct omap_dss_device *dssdev)
int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
{
- struct omap_dss_output *out = dssdev->output;
+ struct omap_dss_output *out = &dpi.output;
int r;
mutex_lock(&dpi.lock);
@@ -230,7 +225,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
if (r)
goto err_get_dispc;
- r = dss_dpi_select_source(dssdev->channel);
+ r = dss_dpi_select_source(out->manager->id);
if (r)
goto err_src_sel;
@@ -244,11 +239,11 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
goto err_dsi_pll_init;
}
- r = dpi_set_mode(dssdev);
+ r = dpi_set_mode(out->manager);
if (r)
goto err_set_mode;
- dpi_config_lcd_manager(dssdev);
+ dpi_config_lcd_manager(out->manager);
mdelay(2);
@@ -285,7 +280,7 @@ EXPORT_SYMBOL(omapdss_dpi_display_enable);
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dpi.output.manager;
mutex_lock(&dpi.lock);
@@ -325,7 +320,7 @@ int dpi_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
int r;
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dpi.output.manager;
int lck_div, pck_div;
unsigned long fck;
unsigned long pck;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 04/20] OMAPDSS: DSI: remove omap_dss_device uses
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
The role of struct omap_dss_device will change in the future. The exact
details of that are still a bit unclear. However, the less uses of
omap_dss_device we have, the easier the change is in the future.
This patch removes uses of omap_dss_device from dsi.c, where it can be
done easily. Mostly this means passing dsi platform device to functions,
instead of the omap_dss_device.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dsi.c | 68 ++++++++++++++++++-----------------------
1 file changed, 29 insertions(+), 39 deletions(-)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 9eb7845..815c930 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1199,9 +1199,8 @@ static unsigned long dsi_fclk_rate(struct platform_device *dsidev)
return r;
}
-static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev)
+static int dsi_set_lp_clk_divisor(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
unsigned long dsi_fclk;
unsigned lp_clk_div;
@@ -3904,9 +3903,8 @@ static int dsi_compute_interleave_lp(int blank, int enter_hs, int exit_hs,
return max(lp_inter, 0);
}
-static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev)
+static void dsi_config_cmd_mode_interleaving(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
int blanking_mode;
int hfp_blanking_mode, hbp_blanking_mode, hsa_blanking_mode;
@@ -4022,9 +4020,8 @@ static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev)
dsi_write_reg(dsidev, DSI_VM_TIMING6, r);
}
-static int dsi_proto_config(struct omap_dss_device *dssdev)
+static int dsi_proto_config(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
u32 r;
int buswidth = 0;
@@ -4082,7 +4079,7 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
if (dsi->mode = OMAP_DSS_DSI_VIDEO_MODE) {
dsi_config_vp_sync_events(dsidev);
dsi_config_blanking_modes(dsidev);
- dsi_config_cmd_mode_interleaving(dssdev);
+ dsi_config_cmd_mode_interleaving(dsidev);
}
dsi_vc_initial_config(dsidev, 0);
@@ -4343,7 +4340,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
int bpp = dsi_get_pixel_size(dsi->pix_fmt);
u8 data_type;
u16 word_count;
@@ -4401,7 +4398,7 @@ void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
if (dsi->mode = OMAP_DSS_DSI_VIDEO_MODE) {
dsi_if_enable(dsidev, false);
@@ -4418,11 +4415,10 @@ void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel)
}
EXPORT_SYMBOL(dsi_disable_video_output);
-static void dsi_update_screen_dispc(struct omap_dss_device *dssdev)
+static void dsi_update_screen_dispc(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
unsigned bytespp;
unsigned bytespl;
unsigned bytespf;
@@ -4578,7 +4574,7 @@ int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
dsi->update_bytes = dw * dh *
dsi_get_pixel_size(dsi->pix_fmt) / 8;
#endif
- dsi_update_screen_dispc(dssdev);
+ dsi_update_screen_dispc(dsidev);
return 0;
}
@@ -4586,9 +4582,8 @@ EXPORT_SYMBOL(omap_dsi_update);
/* Display funcs */
-static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev)
+static int dsi_configure_dispc_clocks(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
struct dispc_clock_info dispc_cinfo;
int r;
@@ -4610,11 +4605,10 @@ static int dsi_configure_dispc_clocks(struct omap_dss_device *dssdev)
return 0;
}
-static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
+static int dsi_display_init_dispc(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
int r;
if (dsi->mode = OMAP_DSS_DSI_CMD_MODE) {
@@ -4652,7 +4646,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
dss_mgr_set_timings(mgr, &dsi->timings);
- r = dsi_configure_dispc_clocks(dssdev);
+ r = dsi_configure_dispc_clocks(dsidev);
if (r)
goto err1;
@@ -4672,20 +4666,18 @@ err:
return r;
}
-static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev)
+static void dsi_display_uninit_dispc(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
if (dsi->mode = OMAP_DSS_DSI_CMD_MODE)
dss_mgr_unregister_framedone_handler(mgr,
dsi_framedone_irq_callback, dsidev);
}
-static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
+static int dsi_configure_dsi_clocks(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
struct dsi_clock_info cinfo;
int r;
@@ -4707,18 +4699,17 @@ static int dsi_configure_dsi_clocks(struct omap_dss_device *dssdev)
return 0;
}
-static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
+static int dsi_display_init_dsi(struct platform_device *dsidev)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
int r;
r = dsi_pll_init(dsidev, true, true);
if (r)
goto err0;
- r = dsi_configure_dsi_clocks(dssdev);
+ r = dsi_configure_dsi_clocks(dsidev);
if (r)
goto err1;
@@ -4734,12 +4725,12 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
_dsi_print_reset_status(dsidev);
dsi_proto_timings(dsidev);
- dsi_set_lp_clk_divisor(dssdev);
+ dsi_set_lp_clk_divisor(dsidev);
if (1)
_dsi_print_reset_status(dsidev);
- r = dsi_proto_config(dssdev);
+ r = dsi_proto_config(dsidev);
if (r)
goto err3;
@@ -4764,12 +4755,11 @@ err0:
return r;
}
-static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev,
+static void dsi_display_uninit_dsi(struct platform_device *dsidev,
bool disconnect_lanes, bool enter_ulps)
{
- struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = dsi->output.manager;
if (enter_ulps && !dsi->ulps_enabled)
dsi_enter_ulps(dsidev);
@@ -4791,7 +4781,7 @@ int omapdss_dsi_display_enable(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
- struct omap_dss_output *out = dssdev->output;
+ struct omap_dss_output *out = &dsi->output;
int r = 0;
DSSDBG("dsi_display_enable\n");
@@ -4820,11 +4810,11 @@ int omapdss_dsi_display_enable(struct omap_dss_device *dssdev)
_dsi_initialize_irq(dsidev);
- r = dsi_display_init_dispc(dssdev);
+ r = dsi_display_init_dispc(dsidev);
if (r)
goto err_init_dispc;
- r = dsi_display_init_dsi(dssdev);
+ r = dsi_display_init_dsi(dsidev);
if (r)
goto err_init_dsi;
@@ -4833,7 +4823,7 @@ int omapdss_dsi_display_enable(struct omap_dss_device *dssdev)
return 0;
err_init_dsi:
- dsi_display_uninit_dispc(dssdev);
+ dsi_display_uninit_dispc(dsidev);
err_init_dispc:
dsi_enable_pll_clock(dsidev, 0);
dsi_runtime_put(dsidev);
@@ -4863,9 +4853,9 @@ void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
dsi_sync_vc(dsidev, 2);
dsi_sync_vc(dsidev, 3);
- dsi_display_uninit_dispc(dssdev);
+ dsi_display_uninit_dispc(dsidev);
- dsi_display_uninit_dsi(dssdev, disconnect_lanes, enter_ulps);
+ dsi_display_uninit_dsi(dsidev, disconnect_lanes, enter_ulps);
dsi_runtime_put(dsidev);
dsi_enable_pll_clock(dsidev, 0);
--
1.7.10.4
^ permalink raw reply related
* [PATCH 05/20] OMAPDSS: Taal: remove multi-panel support
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Taal panel driver was originally meant to support multiple different DSI
command mode panel models. This never realized, and the multi-panel
support code is lying there unused, making the driver more difficult to
maintain.
This patch removes the multi-panel support from Taal driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/displays/panel-taal.c | 109 ++++-------------------------
1 file changed, 15 insertions(+), 94 deletions(-)
diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index a32407a..038a815 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -54,61 +54,6 @@ static int _taal_enable_te(struct omap_dss_device *dssdev, bool enable);
static int taal_panel_reset(struct omap_dss_device *dssdev);
-/**
- * struct panel_config - panel configuration
- * @name: panel name
- * @type: panel type
- * @timings: panel resolution
- * @sleep: various panel specific delays, passed to msleep() if non-zero
- * @reset_sequence: reset sequence timings, passed to udelay() if non-zero
- * @regulators: array of panel regulators
- * @num_regulators: number of regulators in the array
- */
-struct panel_config {
- const char *name;
- int type;
-
- struct omap_video_timings timings;
-
- struct {
- unsigned int sleep_in;
- unsigned int sleep_out;
- unsigned int hw_reset;
- unsigned int enable_te;
- } sleep;
-
- struct {
- unsigned int high;
- unsigned int low;
- } reset_sequence;
-
-};
-
-enum {
- PANEL_TAAL,
-};
-
-static struct panel_config panel_configs[] = {
- {
- .name = "taal",
- .type = PANEL_TAAL,
- .timings = {
- .x_res = 864,
- .y_res = 480,
- },
- .sleep = {
- .sleep_in = 5,
- .sleep_out = 5,
- .hw_reset = 5,
- .enable_te = 100, /* possible panel bug */
- },
- .reset_sequence = {
- .high = 10,
- .low = 10,
- },
- },
-};
-
struct taal_data {
struct mutex lock;
@@ -121,9 +66,6 @@ struct taal_data {
struct omap_dss_device *dssdev;
- /* panel specific HW info */
- struct panel_config *panel_config;
-
/* panel HW configuration from DT or platform data */
int reset_gpio;
int ext_te_gpio;
@@ -221,8 +163,7 @@ static int taal_sleep_in(struct taal_data *td)
hw_guard_start(td, 120);
- if (td->panel_config->sleep.sleep_in)
- msleep(td->panel_config->sleep.sleep_in);
+ msleep(5);
return 0;
}
@@ -239,8 +180,7 @@ static int taal_sleep_out(struct taal_data *td)
hw_guard_start(td, 120);
- if (td->panel_config->sleep.sleep_out)
- msleep(td->panel_config->sleep.sleep_out);
+ msleep(5);
return 0;
}
@@ -845,17 +785,14 @@ static void taal_hw_reset(struct omap_dss_device *dssdev)
return;
gpio_set_value(td->reset_gpio, 1);
- if (td->panel_config->reset_sequence.high)
- udelay(td->panel_config->reset_sequence.high);
+ udelay(10);
/* reset the panel */
gpio_set_value(td->reset_gpio, 0);
/* assert reset */
- if (td->panel_config->reset_sequence.low)
- udelay(td->panel_config->reset_sequence.low);
+ udelay(10);
gpio_set_value(td->reset_gpio, 1);
/* wait after releasing reset */
- if (td->panel_config->sleep.hw_reset)
- msleep(td->panel_config->sleep.hw_reset);
+ msleep(5);
}
static void taal_probe_pdata(struct taal_data *td,
@@ -881,8 +818,7 @@ static int taal_probe(struct omap_dss_device *dssdev)
struct backlight_properties props;
struct taal_data *td;
struct backlight_device *bldev = NULL;
- int r, i;
- const char *panel_name;
+ int r;
dev_dbg(&dssdev->dev, "probe\n");
@@ -897,26 +833,12 @@ static int taal_probe(struct omap_dss_device *dssdev)
const struct nokia_dsi_panel_data *pdata = dssdev->data;
taal_probe_pdata(td, pdata);
-
- panel_name = pdata->name;
} else {
return -ENODEV;
}
- if (panel_name = NULL)
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(panel_configs); i++) {
- if (strcmp(panel_name, panel_configs[i].name) = 0) {
- td->panel_config = &panel_configs[i];
- break;
- }
- }
-
- if (!td->panel_config)
- return -EINVAL;
-
- dssdev->panel.timings = td->panel_config->timings;
+ dssdev->panel.timings.x_res = 864;
+ dssdev->panel.timings.y_res = 480;
dssdev->panel.dsi_pix_fmt = OMAP_DSS_DSI_FMT_RGB888;
dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE |
OMAP_DSS_DISPLAY_CAP_TEAR_ELIM;
@@ -1086,8 +1008,7 @@ static int taal_power_on(struct omap_dss_device *dssdev)
goto err;
/* on early Taal revisions CABC is broken */
- if (td->panel_config->type = PANEL_TAAL &&
- (id2 = 0x00 || id2 = 0xff || id2 = 0x81))
+ if (id2 = 0x00 || id2 = 0xff || id2 = 0x81)
td->cabc_broken = true;
r = taal_dcs_write_1(td, DCS_BRIGHTNESS, 0xff);
@@ -1129,8 +1050,8 @@ static int taal_power_on(struct omap_dss_device *dssdev)
td->enabled = 1;
if (!td->intro_printed) {
- dev_info(&dssdev->dev, "%s panel revision %02x.%02x.%02x\n",
- td->panel_config->name, id1, id2, id3);
+ dev_info(&dssdev->dev, "panel revision %02x.%02x.%02x\n",
+ id1, id2, id3);
if (td->cabc_broken)
dev_info(&dssdev->dev,
"old Taal version, CABC disabled\n");
@@ -1311,8 +1232,8 @@ static int taal_update(struct omap_dss_device *dssdev,
/* XXX no need to send this every frame, but dsi break if not done */
r = taal_set_update_window(td, 0, 0,
- td->panel_config->timings.x_res,
- td->panel_config->timings.y_res);
+ dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res);
if (r)
goto err;
@@ -1365,8 +1286,8 @@ static int _taal_enable_te(struct omap_dss_device *dssdev, bool enable)
if (!gpio_is_valid(td->ext_te_gpio))
omapdss_dsi_enable_te(dssdev, enable);
- if (td->panel_config->sleep.enable_te)
- msleep(td->panel_config->sleep.enable_te);
+ /* possible panel bug */
+ msleep(100);
return r;
}
--
1.7.10.4
^ permalink raw reply related
* [PATCH 06/20] OMAPDSS: APPLY: remove dssdev from dss_mgr_wait_for_vsync
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
dss_mgr_wait_for_vsync() uses dssdev->type to find out if the output is
going to VENC, HDMI, or something else. This creates a dependency on
dssdev, which we want to remove. The task is more logically done by
looking at the output to which the overlay manager in question is
connected to.
This patch changes the code to use output->id to find out which kind of
output we use.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/apply.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index d446bdf..a4b356a 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -435,20 +435,27 @@ static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_man
static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
{
unsigned long timeout = msecs_to_jiffies(500);
- struct omap_dss_device *dssdev = mgr->get_device(mgr);
u32 irq;
int r;
+ if (mgr->output = NULL)
+ return -ENODEV;
+
r = dispc_runtime_get();
if (r)
return r;
- if (dssdev->type = OMAP_DISPLAY_TYPE_VENC)
+ switch (mgr->output->id) {
+ case OMAP_DSS_OUTPUT_VENC:
irq = DISPC_IRQ_EVSYNC_ODD;
- else if (dssdev->type = OMAP_DISPLAY_TYPE_HDMI)
+ break;
+ case OMAP_DSS_OUTPUT_HDMI:
irq = DISPC_IRQ_EVSYNC_EVEN;
- else
+ break;
+ default:
irq = dispc_mgr_get_vsync_irq(mgr->id);
+ break;
+ }
r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
--
1.7.10.4
^ permalink raw reply related
* [PATCH 07/20] OMAPDSS: add missing export for omap_dss_get_output()
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
omap_dss_get_output() is a public function, but was missing
EXPORT_SYMBOL().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/output.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 79dea1a..5214df6 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -113,6 +113,7 @@ struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
return NULL;
}
+EXPORT_SYMBOL(omap_dss_get_output);
static const struct dss_mgr_ops *dss_mgr_ops;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 08/20] OMAPDSS: HDMI: init output earlier
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Move hdmi driver's output initialization a bit earlier, so that it
happens before hdmi panel init. In the future the hdmi panel will depend
on the output being ready.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/hdmi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index e5682ae..f3768d0 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1094,6 +1094,8 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
hdmi.ip_data.pll_offset = HDMI_PLLCTRL;
hdmi.ip_data.phy_offset = HDMI_PHY;
+ hdmi_init_output(pdev);
+
r = hdmi_panel_init();
if (r) {
DSSERR("can't init panel\n");
@@ -1102,8 +1104,6 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
dss_debugfs_create_file("hdmi", hdmi_dump_regs);
- hdmi_init_output(pdev);
-
hdmi_probe_pdata(pdev);
return 0;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 09/20] OMAPDSS: add output->name
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Add name field to omapdss's outputs to help debugging.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 1 +
drivers/video/omap2/dss/dsi.c | 1 +
drivers/video/omap2/dss/hdmi.c | 1 +
drivers/video/omap2/dss/rfbi.c | 1 +
drivers/video/omap2/dss/sdi.c | 1 +
drivers/video/omap2/dss/venc.c | 1 +
include/video/omapdss.h | 3 +++
7 files changed, 9 insertions(+)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index cb6b280..e282456 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -512,6 +512,7 @@ static void __init dpi_init_output(struct platform_device *pdev)
out->pdev = pdev;
out->id = OMAP_DSS_OUTPUT_DPI;
out->type = OMAP_DISPLAY_TYPE_DPI;
+ out->name = "dpi";
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 815c930..1a6ad6f 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5183,6 +5183,7 @@ static void __init dsi_init_output(struct platform_device *dsidev)
OMAP_DSS_OUTPUT_DSI1 : OMAP_DSS_OUTPUT_DSI2;
out->type = OMAP_DISPLAY_TYPE_DSI;
+ out->name = dsi->module_id = 0 ? "dsi0" : "dsi1";
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index f3768d0..888cfe3 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1046,6 +1046,7 @@ static void __init hdmi_init_output(struct platform_device *pdev)
out->pdev = pdev;
out->id = OMAP_DSS_OUTPUT_HDMI;
out->type = OMAP_DISPLAY_TYPE_HDMI;
+ out->name = "hdmi";
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index e903dd3..a47a9e5 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -1025,6 +1025,7 @@ static void __init rfbi_init_output(struct platform_device *pdev)
out->pdev = pdev;
out->id = OMAP_DSS_OUTPUT_DBI;
out->type = OMAP_DISPLAY_TYPE_DBI;
+ out->name = "rfbi";
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 62b5374..0802927 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -278,6 +278,7 @@ static void __init sdi_init_output(struct platform_device *pdev)
out->pdev = pdev;
out->id = OMAP_DSS_OUTPUT_SDI;
out->type = OMAP_DISPLAY_TYPE_SDI;
+ out->name = "sdi";
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 006caf3..c8130f8 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -819,6 +819,7 @@ static void __init venc_init_output(struct platform_device *pdev)
out->pdev = pdev;
out->id = OMAP_DSS_OUTPUT_VENC;
out->type = OMAP_DISPLAY_TYPE_VENC;
+ out->name = "venc";
dss_register_output(out);
}
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 2cb2b0e..ba9cea7 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -541,6 +541,9 @@ struct omap_dss_writeback_info {
struct omap_dss_output {
struct list_head list;
+ /* name of the output for debug */
+ const char *name;
+
/* display type supported by the output */
enum omap_display_type type;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 10/20] OMAPDSS: Resolve channels for outputs
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
The DISPC channel used for each output is currently passed in panel
platform data from the board files.
To simplify this, and to make the panel drivers less dependent on OMAP,
this patch changes omapdss to resolve the channel independently. The
channel is resolved based on the OMAP version and, in case of DSI, the
DSI module id.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 37 ++++++++++++++++++++++++++-----
drivers/video/omap2/dss/dsi.c | 48 ++++++++++++++++++++++++++++++++++++++++
drivers/video/omap2/dss/rfbi.c | 2 ++
drivers/video/omap2/dss/sdi.c | 2 ++
4 files changed, 84 insertions(+), 5 deletions(-)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index e282456..3261644 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -396,12 +396,44 @@ static int __init dpi_verify_dsi_pll(struct platform_device *dsidev)
return 0;
}
+/*
+ * Return a hardcoded channel for the DPI output. This should work for
+ * current use cases, but this can be later expanded to either resolve
+ * the channel in some more dynamic manner, or get the channel as a user
+ * parameter.
+ */
+static enum omap_channel dpi_get_channel(void)
+{
+ switch (omapdss_get_version()) {
+ case OMAPDSS_VER_OMAP24xx:
+ case OMAPDSS_VER_OMAP34xx_ES1:
+ case OMAPDSS_VER_OMAP34xx_ES3:
+ case OMAPDSS_VER_OMAP3630:
+ case OMAPDSS_VER_AM35xx:
+ return OMAP_DSS_CHANNEL_LCD;
+
+ case OMAPDSS_VER_OMAP4430_ES1:
+ case OMAPDSS_VER_OMAP4430_ES2:
+ case OMAPDSS_VER_OMAP4:
+ return OMAP_DSS_CHANNEL_LCD2;
+
+ case OMAPDSS_VER_OMAP5:
+ return OMAP_DSS_CHANNEL_LCD2;
+
+ default:
+ DSSWARN("unsupported DSS version\n");
+ return OMAP_DSS_CHANNEL_LCD;
+ }
+}
+
static int __init dpi_init_display(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev;
DSSDBG("init_display\n");
+ dssdev->channel = dpi_get_channel();
+
if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) &&
dpi.vdds_dsi_reg = NULL) {
struct regulator *vdds_dsi;
@@ -416,11 +448,6 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
dpi.vdds_dsi_reg = vdds_dsi;
}
- /*
- * XXX We shouldn't need dssdev->channel for this. The dsi pll clock
- * source for DPI is SoC integration detail, not something that should
- * be configured in the dssdev
- */
dsidev = dpi_get_dsidev(dssdev->channel);
if (dsidev && dpi_verify_dsi_pll(dsidev)) {
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 1a6ad6f..c39ca86 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4946,6 +4946,52 @@ void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev,
}
EXPORT_SYMBOL(omapdss_dsi_set_videomode_timings);
+/*
+ * Return a hardcoded channel for the DSI output. This should work for
+ * current use cases, but this can be later expanded to either resolve
+ * the channel in some more dynamic manner, or get the channel as a user
+ * parameter.
+ */
+static enum omap_channel dsi_get_channel(int module_id)
+{
+ switch (omapdss_get_version()) {
+ case OMAPDSS_VER_OMAP24xx:
+ case OMAPDSS_VER_OMAP34xx_ES1:
+ case OMAPDSS_VER_OMAP34xx_ES3:
+ case OMAPDSS_VER_OMAP3630:
+ case OMAPDSS_VER_AM35xx:
+ return OMAP_DSS_CHANNEL_LCD;
+
+ case OMAPDSS_VER_OMAP4430_ES1:
+ case OMAPDSS_VER_OMAP4430_ES2:
+ case OMAPDSS_VER_OMAP4:
+ switch (module_id) {
+ case 0:
+ return OMAP_DSS_CHANNEL_LCD;
+ case 1:
+ return OMAP_DSS_CHANNEL_LCD2;
+ default:
+ DSSWARN("unsupported module id\n");
+ return OMAP_DSS_CHANNEL_LCD;
+ }
+
+ case OMAPDSS_VER_OMAP5:
+ switch (module_id) {
+ case 0:
+ return OMAP_DSS_CHANNEL_LCD;
+ case 1:
+ return OMAP_DSS_CHANNEL_LCD3;
+ default:
+ DSSWARN("unsupported module id\n");
+ return OMAP_DSS_CHANNEL_LCD;
+ }
+
+ default:
+ DSSWARN("unsupported DSS version\n");
+ return OMAP_DSS_CHANNEL_LCD;
+ }
+}
+
static int __init dsi_init_display(struct omap_dss_device *dssdev)
{
struct platform_device *dsidev @@ -4954,6 +5000,8 @@ static int __init dsi_init_display(struct omap_dss_device *dssdev)
DSSDBG("DSI init\n");
+ dssdev->channel = dsi_get_channel(dsi->module_id);
+
if (dsi->vdds_dsi_reg = NULL) {
struct regulator *vdds_dsi;
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index a47a9e5..04c4ab6 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -945,6 +945,8 @@ EXPORT_SYMBOL(omapdss_rfbi_display_disable);
static int __init rfbi_init_display(struct omap_dss_device *dssdev)
{
+ dssdev->channel = OMAP_DSS_CHANNEL_LCD;
+
rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev;
return 0;
}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 0802927..d24e971 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -186,6 +186,8 @@ static int __init sdi_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("SDI init\n");
+ dssdev->channel = OMAP_DSS_CHANNEL_LCD;
+
if (sdi.vdds_sdi_reg = NULL) {
struct regulator *vdds_sdi;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 11/20] OMAPDSS: add output->recommended_channel
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Add recommended_channel for omapdss's outputs. The field tells which
DISPC channel should be used for that output.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 1 +
drivers/video/omap2/dss/dsi.c | 1 +
drivers/video/omap2/dss/hdmi.c | 1 +
drivers/video/omap2/dss/rfbi.c | 1 +
drivers/video/omap2/dss/sdi.c | 1 +
drivers/video/omap2/dss/venc.c | 1 +
include/video/omapdss.h | 3 +++
7 files changed, 9 insertions(+)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 3261644..fb38019 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -540,6 +540,7 @@ static void __init dpi_init_output(struct platform_device *pdev)
out->id = OMAP_DSS_OUTPUT_DPI;
out->type = OMAP_DISPLAY_TYPE_DPI;
out->name = "dpi";
+ out->recommended_channel = dpi_get_channel();
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index c39ca86..e0c9e31 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5232,6 +5232,7 @@ static void __init dsi_init_output(struct platform_device *dsidev)
out->type = OMAP_DISPLAY_TYPE_DSI;
out->name = dsi->module_id = 0 ? "dsi0" : "dsi1";
+ out->recommended_channel = dsi_get_channel(dsi->module_id);
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 888cfe3..e4c3be4 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1047,6 +1047,7 @@ static void __init hdmi_init_output(struct platform_device *pdev)
out->id = OMAP_DSS_OUTPUT_HDMI;
out->type = OMAP_DISPLAY_TYPE_HDMI;
out->name = "hdmi";
+ out->recommended_channel = OMAP_DSS_CHANNEL_DIGIT;
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 04c4ab6..991ec93 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -1028,6 +1028,7 @@ static void __init rfbi_init_output(struct platform_device *pdev)
out->id = OMAP_DSS_OUTPUT_DBI;
out->type = OMAP_DISPLAY_TYPE_DBI;
out->name = "rfbi";
+ out->recommended_channel = OMAP_DSS_CHANNEL_LCD;
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index d24e971..c797b33 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -281,6 +281,7 @@ static void __init sdi_init_output(struct platform_device *pdev)
out->id = OMAP_DSS_OUTPUT_SDI;
out->type = OMAP_DISPLAY_TYPE_SDI;
out->name = "sdi";
+ out->recommended_channel = OMAP_DSS_CHANNEL_LCD;
dss_register_output(out);
}
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index c8130f8..b85fd3d 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -820,6 +820,7 @@ static void __init venc_init_output(struct platform_device *pdev)
out->id = OMAP_DSS_OUTPUT_VENC;
out->type = OMAP_DISPLAY_TYPE_VENC;
out->name = "venc";
+ out->recommended_channel = OMAP_DSS_CHANNEL_DIGIT;
dss_register_output(out);
}
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index ba9cea7..8647646 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -547,6 +547,9 @@ struct omap_dss_output {
/* display type supported by the output */
enum omap_display_type type;
+ /* recommended DISPC channel for this output */
+ enum omap_channel recommended_channel;
+
/* output instance */
enum omap_dss_output_id id;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 12/20] OMAPDSS: DPI: use output->recommended_channel
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Use output's recommended_channel instead of dssdev->channel in DPI
driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index fb38019..eba6b87 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -448,7 +448,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
dpi.vdds_dsi_reg = vdds_dsi;
}
- dsidev = dpi_get_dsidev(dssdev->channel);
+ dsidev = dpi_get_dsidev(dpi.output.recommended_channel);
if (dsidev && dpi_verify_dsi_pll(dsidev)) {
dsidev = NULL;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 13/20] OMAPFB: use output->recommended_channel
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Use output's recommended_channel instead of dssdev->channel in OMAPFB
driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/omapfb/omapfb-main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index ca585ef..24f159e 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2388,7 +2388,7 @@ static int omapfb_init_connections(struct omapfb2_device *fbdev,
struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
struct omap_dss_output *out = dssdev->output;
- mgr = omap_dss_get_overlay_manager(dssdev->channel);
+ mgr = omap_dss_get_overlay_manager(out->recommended_channel);
if (!mgr || !out)
continue;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 14/20] OMAPDSS: remove dssdev->channel assignments
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Now that the driver uses ooutput->recommended_channel, we can remove the
uses of the hacky dssdev->channel field.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 2 --
drivers/video/omap2/dss/dsi.c | 2 --
drivers/video/omap2/dss/hdmi.c | 2 --
drivers/video/omap2/dss/rfbi.c | 2 --
drivers/video/omap2/dss/sdi.c | 2 --
drivers/video/omap2/dss/venc.c | 2 --
6 files changed, 12 deletions(-)
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index eba6b87..775214c 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -432,8 +432,6 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev)
DSSDBG("init_display\n");
- dssdev->channel = dpi_get_channel();
-
if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) &&
dpi.vdds_dsi_reg = NULL) {
struct regulator *vdds_dsi;
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index e0c9e31..f44316a 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -5000,8 +5000,6 @@ static int __init dsi_init_display(struct omap_dss_device *dssdev)
DSSDBG("DSI init\n");
- dssdev->channel = dsi_get_channel(dsi->module_id);
-
if (dsi->vdds_dsi_reg = NULL) {
struct regulator *vdds_dsi;
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index e4c3be4..a49e73f 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1012,8 +1012,6 @@ static void __init hdmi_probe_pdata(struct platform_device *pdev)
hdmi.ls_oe_gpio = priv->ls_oe_gpio;
hdmi.hpd_gpio = priv->hpd_gpio;
- dssdev->channel = OMAP_DSS_CHANNEL_DIGIT;
-
r = hdmi_init_display(dssdev);
if (r) {
DSSERR("device %s init failed: %d\n", dssdev->name, r);
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 991ec93..48d51ca 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -945,8 +945,6 @@ EXPORT_SYMBOL(omapdss_rfbi_display_disable);
static int __init rfbi_init_display(struct omap_dss_device *dssdev)
{
- dssdev->channel = OMAP_DSS_CHANNEL_LCD;
-
rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev;
return 0;
}
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index c797b33..eb4ee17 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -186,8 +186,6 @@ static int __init sdi_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("SDI init\n");
- dssdev->channel = OMAP_DSS_CHANNEL_LCD;
-
if (sdi.vdds_sdi_reg = NULL) {
struct regulator *vdds_sdi;
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index b85fd3d..6d25a12 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -786,8 +786,6 @@ static void __init venc_probe_pdata(struct platform_device *vencdev)
dss_copy_device_pdata(dssdev, plat_dssdev);
- dssdev->channel = OMAP_DSS_CHANNEL_DIGIT;
-
r = venc_init_display(dssdev);
if (r) {
DSSERR("device %s init failed: %d\n", dssdev->name, r);
--
1.7.10.4
^ permalink raw reply related
* [PATCH 15/20] OMAP: dss-common.c: remove uses of dss channel (LATER)
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Now that omap_dss_device's channel is resolved automatically, we can
remove its uses from the board files.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
arch/arm/mach-omap2/dss-common.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/arm/mach-omap2/dss-common.c b/arch/arm/mach-omap2/dss-common.c
index 4be5cfc..125c4eb 100644
--- a/arch/arm/mach-omap2/dss-common.c
+++ b/arch/arm/mach-omap2/dss-common.c
@@ -55,7 +55,6 @@ static struct omap_dss_device omap4_panda_dvi_device = {
.data = &omap4_dvi_panel,
.phy.dpi.data_lines = 24,
.reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
- .channel = OMAP_DSS_CHANNEL_LCD2,
};
static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
@@ -68,7 +67,6 @@ static struct omap_dss_device omap4_panda_hdmi_device = {
.name = "hdmi",
.driver_name = "hdmi_panel",
.type = OMAP_DISPLAY_TYPE_HDMI,
- .channel = OMAP_DSS_CHANNEL_DIGIT,
.data = &omap4_panda_hdmi_data,
};
@@ -132,7 +130,6 @@ static struct omap_dss_device sdp4430_lcd_device = {
.phy.dsi = {
.module = 0,
},
- .channel = OMAP_DSS_CHANNEL_LCD,
};
static struct nokia_dsi_panel_data dsi2_panel = {
@@ -156,7 +153,6 @@ static struct omap_dss_device sdp4430_lcd2_device = {
.module = 1,
},
- .channel = OMAP_DSS_CHANNEL_LCD2,
};
static struct omap_dss_hdmi_data sdp4430_hdmi_data = {
@@ -169,7 +165,6 @@ static struct omap_dss_device sdp4430_hdmi_device = {
.name = "hdmi",
.driver_name = "hdmi_panel",
.type = OMAP_DISPLAY_TYPE_HDMI,
- .channel = OMAP_DSS_CHANNEL_DIGIT,
.data = &sdp4430_hdmi_data,
};
@@ -215,7 +210,6 @@ static struct omap_dss_device sdp4430_picodlp_device = {
.driver_name = "picodlp_panel",
.type = OMAP_DISPLAY_TYPE_DPI,
.phy.dpi.data_lines = 24,
- .channel = OMAP_DSS_CHANNEL_LCD2,
.platform_enable = sdp4430_panel_enable_picodlp,
.platform_disable = sdp4430_panel_disable_picodlp,
.data = &sdp4430_picodlp_pdata,
--
1.7.10.4
^ permalink raw reply related
* [PATCH 16/20] OMAPDSS: omapdss.h: remove channel field from omap_dss_device (LATER)
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
include/video/omapdss.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 8647646..cd028c8 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -567,8 +567,6 @@ struct omap_dss_device {
enum omap_display_type type;
- enum omap_channel channel;
-
union {
struct {
u8 data_lines;
--
1.7.10.4
^ permalink raw reply related
* [PATCH 17/20] OMAPDSS: add pdata->default_display_name
From: Tomi Valkeinen @ 2013-03-08 11:51 UTC (permalink / raw)
To: Archit Taneja, linux-omap, linux-fbdev; +Cc: Tomi Valkeinen
In-Reply-To: <1362743515-10152-1-git-send-email-tomi.valkeinen@ti.com>
We can currently set the default display (i.e. the initial display) in
the omapdss platform data by using a pointer to the default
omap_dss_device. Internally omapdss uses the device's name to resolve
the default display.
As it's difficult to get the omap_dss_device pointer in the future,
after we've changed the omapdss device model, this patch adds a new way
to define the default display, by using the name of the display.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/core.c | 2 ++
include/video/omapdss.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index f8779d4..a9bab9f 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -238,6 +238,8 @@ static int __init omap_dss_probe(struct platform_device *pdev)
if (def_disp_name)
core.default_display_name = def_disp_name;
+ else if (pdata->default_display_name)
+ core.default_display_name = pdata->default_display_name;
else if (pdata->default_device)
core.default_display_name = pdata->default_device->name;
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index cd028c8..9057e21 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -334,6 +334,7 @@ struct omap_dss_board_info {
int num_devices;
struct omap_dss_device **devices;
struct omap_dss_device *default_device;
+ const char *default_display_name;
int (*dsi_enable_pads)(int dsi_id, unsigned lane_mask);
void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask);
int (*set_min_bus_tput)(struct device *dev, unsigned long r);
--
1.7.10.4
^ permalink raw reply related
page: next (older) | prev (newer) | latest
- recent:[subjects (threaded)|topics (new)|topics (active)]
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox