diff options
Diffstat (limited to 'drivers/video/sh_mipi_dsi.c')
| -rw-r--r-- | drivers/video/sh_mipi_dsi.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/video/sh_mipi_dsi.c b/drivers/video/sh_mipi_dsi.c index b40dc42..24640c8 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); |