Em Fri, 26 Jun 2009 21:01:50 +0200 Hans Verkuil <hverkuil@xxxxxxxxx> escreveu: > Hi Mauro, > > Please pull from http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-dm646x for the following: > > - ARM: DaVinci: DM646x Video: VPIF driver > - ARM: DaVinci: DM646x Video: Add VPIF display driver > - ARM: DaVinci: DM646x Video: Makefile and config files modifications for Display > - ARM: DaVinci: DM646x Video: Fix compile time warnings for mutex locking > > Note that these four patches depend on the attached platform patch that > should be applied to the git tree first. > > If possible, it would be great if this (like the vpfe capture driver) can be > merged for 2.6.31. Hmm... I'm not seeing Russel ack on the arch/arm patch. Russel, could you please review the enclosed patch? Would this be ok for 2.6.31? Cheers, Mauro. --- [PATCH] ARM: DaVinci: DM646x Video: Platform and board specific setup From: Chaithrika U S <chaithrika@xxxxxx> Platform specific display device setup for DM646x EVM Add platform device and resource structures. Also define a platform specific clock setup function that can be accessed by the driver to configure the clock and CPLD. Signed-off-by: Chaithrika U S <chaithrika@xxxxxx> Signed-off-by: Manjunath Hadli <mrh@xxxxxx> Signed-off-by: Brijesh Jadav <brijesh.j@xxxxxx> Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> arch/arm/mach-davinci/board-dm646x-evm.c | 122 +++++++++++++++++++++++++++ arch/arm/mach-davinci/dm646x.c | 62 ++++++++++++++ arch/arm/mach-davinci/include/mach/dm646x.h | 24 +++++ 3 files changed, 208 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index e17de63..eb4bd01 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -52,6 +52,19 @@ #define DM646X_EVM_PHY_MASK (0x2) #define DM646X_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */ +#define VIDCLKCTL_OFFSET (0x38) +#define VSCLKDIS_OFFSET (0x6c) + +#define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8)) +#define VCH2CLK_SYSCLK8 (BIT(9)) +#define VCH2CLK_AUXCLK (BIT(9) | BIT(8)) +#define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12)) +#define VCH3CLK_SYSCLK8 (BIT(13)) +#define VCH3CLK_AUXCLK (BIT(14) | BIT(13)) + +#define VIDCH2CLK (BIT(10)) +#define VIDCH3CLK (BIT(11)) + static struct davinci_uart_config uart_config __initdata = { .enabled_uarts = (1 << 0), }; @@ -207,6 +220,40 @@ static struct at24_platform_data eeprom_info = { .context = (void *)0x7f00, }; +static struct i2c_client *cpld_client; + +static int cpld_video_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + cpld_client = client; + return 0; +} + +static int __devexit cpld_video_remove(struct i2c_client *client) +{ + cpld_client = NULL; + return 0; +} + +static const struct i2c_device_id cpld_video_id[] = { + { "cpld_video", 0 }, + { } +}; + +static struct i2c_driver cpld_video_driver = { + .driver = { + .name = "cpld_video", + }, + .probe = cpld_video_probe, + .remove = cpld_video_remove, + .id_table = cpld_video_id, +}; + +static void evm_init_cpld(void) +{ + i2c_add_driver(&cpld_video_driver); +} + static struct i2c_board_info __initdata i2c_info[] = { { I2C_BOARD_INFO("24c256", 0x50), @@ -216,6 +263,9 @@ static struct i2c_board_info __initdata i2c_info[] = { I2C_BOARD_INFO("pcf8574a", 0x38), .platform_data = &pcf_data, }, + { + I2C_BOARD_INFO("cpld_video", 0x3B), + }, }; static struct davinci_i2c_platform_data i2c_pdata = { @@ -223,10 +273,81 @@ static struct davinci_i2c_platform_data i2c_pdata = { .bus_delay = 0 /* usec */, }; +static int set_vpif_clock(int mux_mode, int hd) +{ + int val = 0; + int err = 0; + unsigned int value; + void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE); + + /* disable the clock */ + value = __raw_readl(base + VSCLKDIS_OFFSET); + value |= (VIDCH3CLK | VIDCH2CLK); + __raw_writel(value, base + VSCLKDIS_OFFSET); + + val = i2c_smbus_read_byte(cpld_client); + if (val < 0) + return val; + + if (mux_mode == 1) + val &= ~0x40; + else + val |= 0x40; + + err = i2c_smbus_write_byte(cpld_client, val); + if (err) + return err; + + value = __raw_readl(base + VIDCLKCTL_OFFSET); + value &= ~(VCH2CLK_MASK); + value &= ~(VCH3CLK_MASK); + + if (hd >= 1) + value |= (VCH2CLK_SYSCLK8 | VCH3CLK_SYSCLK8); + else + value |= (VCH2CLK_AUXCLK | VCH3CLK_AUXCLK); + + __raw_writel(value, base + VIDCLKCTL_OFFSET); + + /* enable the clock */ + value = __raw_readl(base + VSCLKDIS_OFFSET); + value &= ~(VIDCH3CLK | VIDCH2CLK); + __raw_writel(value, base + VSCLKDIS_OFFSET); + + return 0; +} + +static const struct subdev_info dm646x_vpif_subdev[] = { + { + .addr = 0x2A, + .name = "adv7343", + }, + { + .addr = 0x2C, + .name = "ths7303", + }, +}; + +static const char *output[] = { + "Composite", + "Component", + "S-Video", +}; + +static struct vpif_config dm646x_vpif_config = { + .set_clock = set_vpif_clock, + .subdevinfo = dm646x_vpif_subdev, + .subdev_count = ARRAY_SIZE(dm646x_vpif_subdev), + .output = output, + .output_count = ARRAY_SIZE(output), + .card_name = "DM646x EVM", +}; + static void __init evm_init_i2c(void) { davinci_init_i2c(&i2c_pdata); i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info)); + evm_init_cpld(); } static void __init davinci_map_io(void) @@ -243,6 +364,7 @@ static __init void evm_init(void) soc_info->emac_pdata->phy_mask = DM646X_EVM_PHY_MASK; soc_info->emac_pdata->mdio_max_freq = DM646X_EVM_MDIO_FREQUENCY; + dm646x_setup_vpif(&dm646x_vpif_config); } static __init void davinci_dm646x_evm_irq_init(void) diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 64a291f..50dba53 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -31,6 +31,15 @@ #include "clock.h" #include "mux.h" +#define DAVINCI_VPIF_BASE (0x01C12000) +#define VDD3P3V_PWDN_OFFSET (0x48) +#define VSCLKDIS_OFFSET (0x6C) + +#define VDD3P3V_VID_MASK (BIT_MASK(7) | BIT_MASK(6) | BIT_MASK(5) |\ + BIT_MASK(4)) +#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) | BIT_MASK(9) |\ + BIT_MASK(8)) + /* * Device specific clocks */ @@ -587,6 +596,37 @@ static struct platform_device dm646x_edma_device = { .resource = edma_resources, }; +static u64 vpif_dma_mask = DMA_BIT_MASK(32); + +static struct resource vpif_resource[] = { + { + .start = DAVINCI_VPIF_BASE, + .end = DAVINCI_VPIF_BASE + 0x03fff, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_DM646X_VP_VERTINT2, + .end = IRQ_DM646X_VP_VERTINT2, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_DM646X_VP_VERTINT3, + .end = IRQ_DM646X_VP_VERTINT3, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device vpif_display_dev = { + .name = "vpif_display", + .id = -1, + .dev = { + .dma_mask = &vpif_dma_mask, + .coherent_dma_mask = DMA_32BIT_MASK, + }, + .resource = vpif_resource, + .num_resources = ARRAY_SIZE(vpif_resource), +}; + /*----------------------------------------------------------------------*/ static struct map_desc dm646x_io_desc[] = { @@ -696,6 +736,28 @@ static struct davinci_soc_info davinci_soc_info_dm646x = { .sram_len = SZ_32K, }; +void dm646x_setup_vpif(struct vpif_config *config) +{ + unsigned int value; + void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE); + + value = __raw_readl(base + VSCLKDIS_OFFSET); + value &= ~VSCLKDIS_MASK; + __raw_writel(value, base + VSCLKDIS_OFFSET); + + value = __raw_readl(base + VDD3P3V_PWDN_OFFSET); + value &= ~VDD3P3V_VID_MASK; + __raw_writel(value, base + VDD3P3V_PWDN_OFFSET); + + davinci_cfg_reg(DM646X_STSOMUX_DISABLE); + davinci_cfg_reg(DM646X_STSIMUX_DISABLE); + davinci_cfg_reg(DM646X_PTSOMUX_DISABLE); + davinci_cfg_reg(DM646X_PTSIMUX_DISABLE); + + vpif_display_dev.dev.platform_data = config; + platform_device_register(&vpif_display_dev); +} + void __init dm646x_init(void) { davinci_common_init(&davinci_soc_info_dm646x); diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h index 1fc764c..7409b6d 100644 --- a/arch/arm/mach-davinci/include/mach/dm646x.h +++ b/arch/arm/mach-davinci/include/mach/dm646x.h @@ -23,4 +23,28 @@ void __init dm646x_init(void); +void dm646x_video_init(void); + +struct vpif_output { + u16 id; + const char *name; +}; + +struct subdev_info { + unsigned short addr; + const char *name; +}; + +struct vpif_config { + int (*set_clock)(int, int); + const struct subdev_info *subdevinfo; + int subdev_count; + const char **output; + int output_count; + const char *card_name; +}; + + +void dm646x_setup_vpif(struct vpif_config *config); + #endif /* __ASM_ARCH_DM646X_H */ Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
