chaithrika@xxxxxx writes: > From: Chaithrika U S <chaithrika@xxxxxx> > > Add pin mux definitions, display device setup, clock setup functions > > Add pin mux related code for the display device, also 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> Hi Chaithrika, The mux and clock additions could be separated out into a separate patch that could go into DaVinci git today since they are independent of the video subsytem. Kevin > --- > Applies to linux-davinci GIT tree at > http://git.kernel.org/?p=linux/kernel/git/khilman/linux-davinci.git;a=commit;h=486afa37130356662213cc1a2199a285b4fd72af > > arch/arm/mach-davinci/board-dm646x-evm.c | 109 +++++++++++++++++++++++++++ > arch/arm/mach-davinci/dm646x.c | 100 ++++++++++++++++++++++++ > arch/arm/mach-davinci/include/mach/dm646x.h | 9 ++ > arch/arm/mach-davinci/include/mach/mux.h | 17 ++++ > 4 files changed, 235 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c > index 907f424..a6bf180 100644 > --- a/arch/arm/mach-davinci/board-dm646x-evm.c > +++ b/arch/arm/mach-davinci/board-dm646x-evm.c > @@ -39,6 +39,7 @@ > #include <mach/serial.h> > #include <mach/i2c.h> > #include <mach/mmc.h> > +#include <mach/mux.h> > > #include <linux/platform_device.h> > #include <linux/i2c.h> > @@ -46,6 +47,21 @@ > #include <linux/etherdevice.h> > #include <mach/emac.h> > > +#include <media/adv7343.h> > + > +#define VIDCLKCTL_OFFSET (0x38) > +#define VSCLKDIS_OFFSET (0x6c) > + > +#define VCH2CLK_MASK (0x07 << 8) > +#define VCH2CLK_SYSCLK8 (0x02 << 8) > +#define VCH2CLK_AUXCLK (0x03 << 8) > +#define VCH3CLK_MASK (0x07 << 12) > +#define VCH3CLK_SYSCLK8 (0x02 << 12) > +#define VCH3CLK_AUXCLK (0x03 << 12) > + > +#define VIDCH2CLK (0x01 << 10) > +#define VIDCH3CLK (0x01 << 11) > + > static struct davinci_uart_config uart_config __initdata = { > .enabled_uarts = (1 << 0), > }; > @@ -95,11 +111,54 @@ int dm646xevm_eeprom_write(void *buf, off_t off, size_t count) > } > EXPORT_SYMBOL(dm646xevm_eeprom_write); > > +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), > .platform_data = &eeprom_info, > }, > + { > + I2C_BOARD_INFO("adv7343", 0x2A), > + }, > + { > + I2C_BOARD_INFO("ths7303", 0x2C), > + }, > + { > + I2C_BOARD_INFO("cpld_video", 0x3B), > + }, > }; > > static struct davinci_i2c_platform_data i2c_pdata = { > @@ -107,10 +166,59 @@ 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 struct dm646x_vpif_config vpif_config = { > + .set_clock = set_vpif_clock, > +}; > + > 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) > @@ -123,6 +231,7 @@ static __init void evm_init(void) > { > evm_init_i2c(); > davinci_serial_init(&uart_config); > + dm646x_setup_vpif(&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 af040cf..f069ab9 100644 > --- a/arch/arm/mach-davinci/dm646x.c > +++ b/arch/arm/mach-davinci/dm646x.c > @@ -12,6 +12,7 @@ > #include <linux/init.h> > #include <linux/clk.h> > #include <linux/platform_device.h> > +#include <linux/dma-mapping.h> > > #include <mach/dm646x.h> > #include <mach/clock.h> > @@ -24,6 +25,14 @@ > #include "clock.h" > #include "mux.h" > > +#define DAVINCI_VPIF_BASE 0x01C12000 > +#define VDD3P3V_PWDN_OFFSET (0x48) > +#define VSCLKDIS_OFFSET (0x6C) > + > +#define VDD3P3V_VID_MASK (0x0000000F) > + > +#define VSCLKDIS_MASK (0x00000F00) > + > /* > * Device specific clocks > */ > @@ -230,6 +239,20 @@ static struct clk timer2_clk = { > .flags = ALWAYS_ENABLED, /* no LPSC, always enabled; c.f. spruep9a */ > }; > > +static struct clk vpif0_clk = { > + .name = "vpif0", > + .parent = &ref_clk, > + .lpsc = DM646X_LPSC_VPSSMSTR, > + .flags = ALWAYS_ENABLED, > +}; > + > +static struct clk vpif1_clk = { > + .name = "vpif1", > + .parent = &ref_clk, > + .lpsc = DM646X_LPSC_VPSSSLV, > + .flags = ALWAYS_ENABLED, > +}; > + > struct davinci_clk dm646x_clks[] = { > CLK(NULL, "ref", &ref_clk), > CLK(NULL, "aux", &aux_clkin), > @@ -260,6 +283,8 @@ struct davinci_clk dm646x_clks[] = { > CLK(NULL, "timer0", &timer0_clk), > CLK(NULL, "timer1", &timer1_clk), > CLK("watchdog", NULL, &timer2_clk), > + CLK(NULL, "vpif0", &vpif0_clk), > + CLK(NULL, "vpif1", &vpif1_clk), > CLK(NULL, NULL, NULL), > }; > > @@ -275,6 +300,28 @@ MUX_CFG(DM646X, ATAEN, 0, 0, 1, 1, true) > MUX_CFG(DM646X, AUDCK1, 0, 29, 1, 0, false) > > MUX_CFG(DM646X, AUDCK0, 0, 28, 1, 0, false) > + > +MUX_CFG(DM646X, CRGMUX, 0, 24, 7, 5, true) > + > +MUX_CFG(DM646X, STSOMUX_DISABLE, 0, 22, 3, 0, true) > + > +MUX_CFG(DM646X, STSIMUX_DISABLE, 0, 20, 3, 0, true) > + > +MUX_CFG(DM646X, PTSOMUX_DISABLE, 0, 18, 3, 0, true) > + > +MUX_CFG(DM646X, PTSIMUX_DISABLE, 0, 16, 3, 0, true) > + > +MUX_CFG(DM646X, STSOMUX, 0, 22, 3, 2, true) > + > +MUX_CFG(DM646X, STSIMUX, 0, 20, 3, 2, true) > + > +MUX_CFG(DM646X, PTSOMUX_PARALLEL, 0, 18, 3, 2, true) > + > +MUX_CFG(DM646X, PTSIMUX_PARALLEL, 0, 16, 3, 2, true) > + > +MUX_CFG(DM646X, PTSOMUX_SERIAL, 0, 18, 3, 3, true) > + > +MUX_CFG(DM646X, PTSIMUX_SERIAL, 0, 16, 3, 3, true) > }; > > /*----------------------------------------------------------------------*/ > @@ -345,8 +392,61 @@ static struct platform_device dm646x_edma_device = { > .resource = edma_resources, > }; > > +static u64 vpif_dma_mask = DMA_32BIT_MASK; > + > +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), > +}; > + > /*----------------------------------------------------------------------*/ > > +void dm646x_setup_vpif(struct dm646x_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) > { > diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h > index d917939..216345c 100644 > --- a/arch/arm/mach-davinci/include/mach/dm646x.h > +++ b/arch/arm/mach-davinci/include/mach/dm646x.h > @@ -12,7 +12,16 @@ > #define __ASM_ARCH_DM646X_H > > #include <mach/hardware.h> > +#include <linux/i2c.h> > > void __init dm646x_init(void); > > +void dm646x_video_init(void); > + > +struct dm646x_vpif_config { > + int (*set_clock)(int, int); > +}; > + > +void dm646x_setup_vpif(struct dm646x_vpif_config *config); > + > #endif /* __ASM_ARCH_DM646X_H */ > diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h > index cd95629..557bebf 100644 > --- a/arch/arm/mach-davinci/include/mach/mux.h > +++ b/arch/arm/mach-davinci/include/mach/mux.h > @@ -109,6 +109,23 @@ enum davinci_dm646x_index { > /* AUDIO Clock */ > DM646X_AUDCK1, > DM646X_AUDCK0, > + > + /* CRGEN Control */ > + DM646X_CRGMUX, > + > + /* VPIF Control */ > + DM646X_STSOMUX_DISABLE, > + DM646X_STSIMUX_DISABLE, > + DM646X_PTSOMUX_DISABLE, > + DM646X_PTSIMUX_DISABLE, > + > + /* TSIF Control */ > + DM646X_STSOMUX, > + DM646X_STSIMUX, > + DM646X_PTSOMUX_PARALLEL, > + DM646X_PTSIMUX_PARALLEL, > + DM646X_PTSOMUX_SERIAL, > + DM646X_PTSIMUX_SERIAL, > }; > > enum davinci_dm355_index { > -- > 1.5.6 > > _______________________________________________ > Davinci-linux-open-source mailing list > Davinci-linux-open-source@xxxxxxxxxxxxxxxxxxxx > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source -- 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
