Merge branch 'common/fbdev-mipi' of master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

4 files changed, 43 insertions, 51 deletions

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index a054f0d..b1222dc 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -514,6 +514,7 @@ static struct resource mipidsi0_resources[] = {
 static struct sh_mipi_dsi_info mipidsi0_info = {
 	.data_format	= MIPI_RGB888,
 	.lcd_chan	= &lcdc_info.ch[0],
+	.vsynw_offset	= 17,
 };
 
 static struct platform_device mipidsi0_device = {
@@ -526,44 +527,6 @@ static struct platform_device mipidsi0_device = {
 	},
 };
 
-/* This function will disappear when we switch to (runtime) PM */
-static int __init ap4evb_init_display_clk(void)
-{
-	struct clk *lcdc_clk;
-	struct clk *dsitx_clk;
-	int ret;
-
-	lcdc_clk = clk_get(&lcdc_device.dev, "sh_mobile_lcdc_fb.0");
-	if (IS_ERR(lcdc_clk))
-		return PTR_ERR(lcdc_clk);
-
-	dsitx_clk = clk_get(&mipidsi0_device.dev, "sh-mipi-dsi.0");
-	if (IS_ERR(dsitx_clk)) {
-		ret = PTR_ERR(dsitx_clk);
-		goto eclkdsitxget;
-	}
-
-	ret = clk_enable(lcdc_clk);
-	if (ret < 0)
-		goto eclklcdcon;
-
-	ret = clk_enable(dsitx_clk);
-	if (ret < 0)
-		goto eclkdsitxon;
-
-	return 0;
-
-eclkdsitxon:
-	clk_disable(lcdc_clk);
-eclklcdcon:
-	clk_put(dsitx_clk);
-eclkdsitxget:
-	clk_put(lcdc_clk);
-
-	return ret;
-}
-device_initcall(ap4evb_init_display_clk);
-
 static struct platform_device *qhd_devices[] __initdata = {
 	&mipidsi0_device,
 	&keysc_device,
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 3aa0260..66663ad 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -507,7 +507,7 @@ enum { MSTP001,
        MSTP223,
        MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
        MSTP329, MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
-       MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
+       MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP406, MSTP403,
        MSTP_NR };
 
 #define MSTP(_parent, _reg, _bit, _flags) \
@@ -543,6 +543,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
 	[MSTP313] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 13, 0), /* SDHI1 */
 	[MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMC */
+	[MSTP423] = MSTP(&div4_clks[DIV4_B], SMSTPCR4, 23, 0), /* DSITX1 */
 	[MSTP415] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 15, 0), /* SDHI2 */
 	[MSTP413] = MSTP(&pllc1_div2_clk, SMSTPCR4, 13, 0), /* HDMI */
 	[MSTP411] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 11, 0), /* IIC3 */
@@ -596,9 +597,10 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
 	CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),
 	CLKDEV_CON_ID("hdmi_clk", &div6_reparent_clks[DIV6_HDMI]),
-	CLKDEV_CON_ID("dsit_clk", &div6_clks[DIV6_DSIT]),
-	CLKDEV_CON_ID("dsi0p_clk", &div6_clks[DIV6_DSI0P]),
-	CLKDEV_CON_ID("dsi1p_clk", &div6_clks[DIV6_DSI1P]),
+	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]),
+	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]),
+	CLKDEV_ICK_ID("dsi0p_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]),
+	CLKDEV_ICK_ID("dsi1p_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]),
 
 	/* MSTP32 clocks */
 	CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
@@ -610,7 +612,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2 */
 	CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
 	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
-	CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
+	CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX0 */
 	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1", &mstp_clks[MSTP117]), /* LCDC1 */
 	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[MSTP106]), /* JPU */
@@ -633,6 +635,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
 	CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMC */
+	CLKDEV_DEV_ID("sh-mipi-dsi.1", &mstp_clks[MSTP423]), /* DSITX1 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), /* SDHI2 */
 	CLKDEV_DEV_ID("sh-mobile-hdmi", &mstp_clks[MSTP413]), /* HDMI */
 	CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* IIC3 */
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);
diff --git a/include/video/sh_mipi_dsi.h b/include/video/sh_mipi_dsi.h
index 18bca08..6cb95c9 100644
--- a/include/video/sh_mipi_dsi.h
+++ b/include/video/sh_mipi_dsi.h
@@ -27,9 +27,15 @@ enum sh_mipi_dsi_data_fmt {
 
 struct sh_mobile_lcdc_chan_cfg;
 
+#define SH_MIPI_DSI_HSABM	(1 << 0)
+#define SH_MIPI_DSI_HSPBM	(1 << 1)
+
 struct sh_mipi_dsi_info {
 	enum sh_mipi_dsi_data_fmt	data_format;
 	struct sh_mobile_lcdc_chan_cfg	*lcd_chan;
+	unsigned long			flags;
+	u32				clksrc;
+	unsigned int			vsynw_offset;
 };
 
 #endif