Russell,
Requesting your ack on this patch.
Regards,
Chaithrika
On Wed, Aug 05, 2009 at 20:17:42, Chaithrika U S wrote:
> 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: Manjunath Hadli <m...@ti.com>
> Signed-off-by: Brijesh Jadav <brijes...@ti.com>
> Signed-off-by: Chaithrika U S <chaithr...@ti.com>
> Signed-off-by: Kevin Hilman <khil...@deeprootsystems.com>
> ---
> Applies to Davinci GIT tree. Minor updates like change in structure name-
> subdev_info to vpif_subdev_info and correction to VDD3P3V_VID_MASK value.
>
> arch/arm/mach-davinci/board-dm646x-evm.c | 125
+++++++++++++++++++++++++++
> arch/arm/mach-davinci/dm646x.c | 62 +++++++++++++
> arch/arm/mach-davinci/include/mach/dm646x.h | 24 +++++
> 3 files changed, 211 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c
b/arch/arm/mach-davinci/board-dm646x-evm.c
> index b1bf18c..8c88fd0 100644
> --- a/arch/arm/mach-davinci/board-dm646x-evm.c
> +++ b/arch/arm/mach-davinci/board-dm646x-evm.c
> @@ -63,6 +63,19 @@
> #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),
> };
> @@ -288,6 +301,40 @@ static struct snd_platform_data dm646x_evm_snd_data[]
= {
> },
> };
>
> +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),
> @@ -300,6 +347,9 @@ static struct i2c_board_info __initdata i2c_info[] =
{
> {
> I2C_BOARD_INFO("cpld_reg0", 0x3a),
> },
> + {
> + I2C_BOARD_INFO("cpld_video", 0x3B),
> + },
> };
>
> static struct davinci_i2c_platform_data i2c_pdata = {
> @@ -307,11 +357,85 @@ 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);
> +
> + if (!cpld_client)
> + return -ENXIO;
> +
> + /* 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 vpif_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_add_driver(&dm6467evm_cpld_driver);
> i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
> + evm_init_cpld();
> }
>
> static void __init davinci_map_io(void)
> @@ -333,6 +457,7 @@ 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 8fa2803..a9b20e5 100644
> --- a/arch/arm/mach-davinci/dm646x.c
> +++ b/arch/arm/mach-davinci/dm646x.c
> @@ -32,6 +32,15 @@
> #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(3) | BIT_MASK(2) | BIT_MASK(1) |\
> + BIT_MASK(0))
> +#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) |
BIT_MASK(9) |\
> + BIT_MASK(8))
> +
> /*
> * Device specific clocks
> */
> @@ -686,6 +695,37 @@ static struct platform_device dm646x_dit_device = {
> .id = -1,
> };
>
> +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_BIT_MASK(32),
> + },
> + .resource = vpif_resource,
> + .num_resources = ARRAY_SIZE(vpif_resource),
> +};
> +
>
/*----------------------------------------------------------------------*/
>
> static struct map_desc dm646x_io_desc[] = {
> @@ -814,6 +854,28 @@ void __init dm646x_init_mcasp1(struct
snd_platform_data *pdata)
> platform_device_register(&dm646x_dit_device);
> }
>
> +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 feb1e02..792c226 100644
> --- a/arch/arm/mach-davinci/include/mach/dm646x.h
> +++ b/arch/arm/mach-davinci/include/mach/dm646x.h
> @@ -29,4 +29,28 @@ void __init dm646x_init_ide(void);
> void __init dm646x_init_mcasp0(struct snd_platform_data *pdata);
> void __init dm646x_init_mcasp1(struct snd_platform_data *pdata);
>
> +void dm646x_video_init(void);
> +
> +struct vpif_output {
> + u16 id;
> + const char *name;
> +};
> +
> +struct vpif_subdev_info {
> + unsigned short addr;
> + const char *name;
> +};
> +
> +struct vpif_config {
> + int (*set_clock)(int, int);
> + const struct vpif_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 */
> --
> 1.5.6
>
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