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authorPaul Mundt <lethal@linux-sh.org>2011-01-05 17:30:20 +0900
committerPaul Mundt <lethal@linux-sh.org>2011-01-05 17:30:20 +0900
commit97cbc8fb1e35e328073e84c4031bd338306397d6 (patch)
tree0747f1d8f7c1e09ebf1072fcaedd18cccb11f304 /drivers
parent17d6ce11195fceda62af00beefde37e37a01337c (diff)
parent14bbb7c61557172e4482d4d97a5f56042a12b969 (diff)
Merge branch 'common/fbdev-mipi' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/sh_mipi_dsi.c36
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/video/sh_mipi_dsi.c b/drivers/video/sh_mipi_dsi.c
index b40dc423cbd..24640c8458a 100644
--- a/drivers/video/sh_mipi_dsi.c
+++ b/drivers/video/sh_mipi_dsi.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
@@ -50,9 +51,11 @@ struct sh_mipi {
void __iomem *linkbase;
struct clk *dsit_clk;
struct clk *dsip_clk;
- void *next_board_data;
- void (*next_display_on)(void *board_data, struct fb_info *info);
- void (*next_display_off)(void *board_data);
+ struct device *dev;
+
+ void *next_board_data;
+ void (*next_display_on)(void *board_data, struct fb_info *info);
+ void (*next_display_off)(void *board_data);
};
static struct sh_mipi *mipi_dsi[MAX_SH_MIPI_DSI];
@@ -124,6 +127,7 @@ static void mipi_display_on(void *arg, struct fb_info *info)
{
struct sh_mipi *mipi = arg;
+ pm_runtime_get_sync(mipi->dev);
sh_mipi_dsi_enable(mipi, true);
if (mipi->next_display_on)
@@ -138,6 +142,7 @@ static void mipi_display_off(void *arg)
mipi->next_display_off(mipi->next_board_data);
sh_mipi_dsi_enable(mipi, false);
+ pm_runtime_put(mipi->dev);
}
static int __init sh_mipi_setup(struct sh_mipi *mipi,
@@ -145,8 +150,7 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi,
{
void __iomem *base = mipi->base;
struct sh_mobile_lcdc_chan_cfg *ch = pdata->lcd_chan;
- u32 pctype, datatype, pixfmt;
- u32 linelength;
+ u32 pctype, datatype, pixfmt, linelength, vmctr2 = 0x00e00000;
bool yuv;
/*
@@ -303,17 +307,24 @@ static int __init sh_mipi_setup(struct sh_mipi *mipi,
*/
iowrite32(0x00000006, mipi->linkbase + DTCTR);
/* VSYNC width = 2 (<< 17) */
- iowrite32(0x00040000 | (pctype << 12) | datatype,
+ iowrite32((ch->lcd_cfg[0].vsync_len << pdata->vsynw_offset) |
+ (pdata->clksrc << 16) | (pctype << 12) | datatype,
mipi->linkbase + VMCTR1);
+
/*
* Non-burst mode with sync pulses: VSE and HSE are output,
* HSA period allowed, no commands in LP
*/
- iowrite32(0x00e00000, mipi->linkbase + VMCTR2);
+ if (pdata->flags & SH_MIPI_DSI_HSABM)
+ vmctr2 |= 0x20;
+ if (pdata->flags & SH_MIPI_DSI_HSPBM)
+ vmctr2 |= 0x10;
+ iowrite32(vmctr2, mipi->linkbase + VMCTR2);
+
/*
* 0x660 = 1632 bytes per line (RGB24, 544 pixels: see
* sh_mobile_lcdc_info.ch[0].lcd_cfg[0].xres), HSALEN = 1 - default
- * (unused, since VMCTR2[HSABM] = 0)
+ * (unused if VMCTR2[HSABM] = 0)
*/
iowrite32(1 | (linelength << 16), mipi->linkbase + VMLEN1);
@@ -396,6 +407,8 @@ static int __init sh_mipi_probe(struct platform_device *pdev)
goto emap2;
}
+ mipi->dev = &pdev->dev;
+
mipi->dsit_clk = clk_get(&pdev->dev, "dsit_clk");
if (IS_ERR(mipi->dsit_clk)) {
ret = PTR_ERR(mipi->dsit_clk);
@@ -445,6 +458,9 @@ static int __init sh_mipi_probe(struct platform_device *pdev)
mipi_dsi[idx] = mipi;
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_resume(&pdev->dev);
+
ret = sh_mipi_setup(mipi, pdata);
if (ret < 0)
goto emipisetup;
@@ -461,11 +477,13 @@ static int __init sh_mipi_probe(struct platform_device *pdev)
pdata->lcd_chan->board_cfg.board_data = mipi;
pdata->lcd_chan->board_cfg.display_on = mipi_display_on;
pdata->lcd_chan->board_cfg.display_off = mipi_display_off;
+ pdata->lcd_chan->board_cfg.owner = THIS_MODULE;
return 0;
emipisetup:
mipi_dsi[idx] = NULL;
+ pm_runtime_disable(&pdev->dev);
clk_disable(mipi->dsip_clk);
eclkpon:
clk_disable(mipi->dsit_clk);
@@ -517,10 +535,12 @@ static int __exit sh_mipi_remove(struct platform_device *pdev)
if (ret < 0)
return ret;
+ pdata->lcd_chan->board_cfg.owner = NULL;
pdata->lcd_chan->board_cfg.display_on = NULL;
pdata->lcd_chan->board_cfg.display_off = NULL;
pdata->lcd_chan->board_cfg.board_data = NULL;
+ pm_runtime_disable(&pdev->dev);
clk_disable(mipi->dsip_clk);
clk_disable(mipi->dsit_clk);
clk_put(mipi->dsit_clk);