| Message ID | 1343115786-15801-2-git-send-email-prabhakar.lad@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Prabhakar, On 7/24/2012 1:13 PM, Prabhakar Lad wrote: > From: Manjunath Hadli <manjunath.hadli@ti.com> > > Add clock, pin mux definitions and registration function for > VPIF capture and display driver on DA850/OMAP-L138 SoC. > > Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> > Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com> > Cc: Sekhar Nori <nsekhar@ti.com> > --- > arch/arm/mach-davinci/da850.c | 256 ++++++++++++++++++++++++++++ > arch/arm/mach-davinci/include/mach/da8xx.h | 11 ++ > arch/arm/mach-davinci/include/mach/mux.h | 42 +++++ > arch/arm/mach-davinci/include/mach/psc.h | 1 + > 4 files changed, 310 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c > index b44dc84..c864431 100644 > --- a/arch/arm/mach-davinci/da850.c > +++ b/arch/arm/mach-davinci/da850.c > @@ -347,6 +347,13 @@ static struct clk spi1_clk = { > .flags = DA850_CLK_ASYNC3, > }; > > +static struct clk vpif_clk = { > + .name = "vpif", > + .parent = &pll0_sysclk2, > + .lpsc = DA850_LPSC1_VPIF, > + .gpsc = 1, > +}; > + > static struct clk sata_clk = { > .name = "sata", > .parent = &pll0_sysclk2, > @@ -397,6 +404,7 @@ static struct clk_lookup da850_clks[] = { > CLK(NULL, "usb20", &usb20_clk), > CLK("spi_davinci.0", NULL, &spi0_clk), > CLK("spi_davinci.1", NULL, &spi1_clk), > + CLK(NULL, "vpif", &vpif_clk), You should dev_id for lookup instead of con_id. Looking at drivers/media/video/davinci/vpif.c, there is a single clock that VPIF needs, so con_id can actually be passed as NULL. > CLK("ahci", NULL, &sata_clk), > CLK(NULL, NULL, NULL), > }; > @@ -573,6 +581,46 @@ static const struct mux_config da850_pins[] = { > MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false) > MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false) > MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false) > + /* VPIF Capture */ > + MUX_CFG(DA850, VPIF_DIN0, 15, 4, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN1, 15, 0, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN2, 14, 28, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN3, 14, 24, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN4, 14, 20, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN5, 14, 16, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN6, 14, 12, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN7, 14, 8, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN8, 16, 4, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN9, 16, 0, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN10, 15, 28, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN11, 15, 24, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN12, 15, 20, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN13, 15, 16, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN14, 15, 12, 15, 1, false) > + MUX_CFG(DA850, VPIF_DIN15, 15, 8, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKIN0, 14, 0, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKIN1, 14, 4, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKIN2, 19, 8, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKIN3, 19, 16, 15, 1, false) > + /* VPIF Display */ > + MUX_CFG(DA850, VPIF_DOUT0, 17, 4, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT1, 17, 0, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT2, 16, 28, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT3, 16, 24, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT4, 16, 20, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT5, 16, 16, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT6, 16, 12, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT7, 16, 8, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT8, 18, 4, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT9, 18, 0, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT10, 17, 28, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT11, 17, 24, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT12, 17, 20, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT13, 17, 16, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT14, 17, 12, 15, 1, false) > + MUX_CFG(DA850, VPIF_DOUT15, 17, 8, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKO2, 19, 12, 15, 1, false) > + MUX_CFG(DA850, VPIF_CLKO3, 19, 20, 15, 1, false) > #endif > }; > > @@ -595,6 +643,26 @@ const short da850_lcdcntl_pins[] __initdata = { > -1 > }; > > +const short da850_vpif_capture_pins[] __initdata = { > + DA850_VPIF_DIN0, DA850_VPIF_DIN1, DA850_VPIF_DIN2, DA850_VPIF_DIN3, > + DA850_VPIF_DIN4, DA850_VPIF_DIN5, DA850_VPIF_DIN6, DA850_VPIF_DIN7, > + DA850_VPIF_DIN8, DA850_VPIF_DIN9, DA850_VPIF_DIN10, DA850_VPIF_DIN11, > + DA850_VPIF_DIN12, DA850_VPIF_DIN13, DA850_VPIF_DIN14, DA850_VPIF_DIN15, > + DA850_VPIF_CLKIN0, DA850_VPIF_CLKIN1, DA850_VPIF_CLKIN2, > + DA850_VPIF_CLKIN3, > + -1 > +}; > + > +const short da850_vpif_display_pins[] __initdata = { > + DA850_VPIF_DOUT0, DA850_VPIF_DOUT1, DA850_VPIF_DOUT2, DA850_VPIF_DOUT3, > + DA850_VPIF_DOUT4, DA850_VPIF_DOUT5, DA850_VPIF_DOUT6, DA850_VPIF_DOUT7, > + DA850_VPIF_DOUT8, DA850_VPIF_DOUT9, DA850_VPIF_DOUT10, > + DA850_VPIF_DOUT11, DA850_VPIF_DOUT12, DA850_VPIF_DOUT13, > + DA850_VPIF_DOUT14, DA850_VPIF_DOUT15, DA850_VPIF_CLKO2, > + DA850_VPIF_CLKO3, > + -1 > +}; > + > /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ > static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { > [IRQ_DA8XX_COMMTX] = 7, > @@ -1064,6 +1132,194 @@ no_ddrpll_mem: > return ret; > } > > +/* VPIF resource, platform data */ > +static u64 da850_vpif_dma_mask = DMA_BIT_MASK(32); > + > +static struct resource da850_vpif_resource[] = { > + { > + .start = DA8XX_VPIF_BASE, > + .end = DA8XX_VPIF_BASE + 0xfff, > + .flags = IORESOURCE_MEM, > + } > +}; > + > +static struct platform_device da850_vpif_dev = { > + .name = "vpif", > + .id = -1, > + .dev = { > + .dma_mask = &da850_vpif_dma_mask, > + .coherent_dma_mask = DMA_BIT_MASK(32), > + }, > + .resource = da850_vpif_resource, > + .num_resources = ARRAY_SIZE(da850_vpif_resource), > +}; > + > +static unsigned long vpif_disp_cont_buf_offset; > + > +static int __init cfg_vpif_disp_cont_buf_offset(char *p) > +{ > + if (!p) > + return 0; > + > + return kstrtoul(p, 10, &vpif_disp_cont_buf_offset); > +} > +early_param("vpif_disp_cont_buf_offset", cfg_vpif_disp_cont_buf_offset); > + > +static unsigned long vpif_disp_cont_bufsize; > + > +static int __init cfg_vpif_disp_cont_bufsize(char *p) > +{ > + if (!p) > + return 0; > + > + return kstrtoul(p, 10, &vpif_disp_cont_bufsize); > +} > +early_param("vpif_disp_cont_bufsize", cfg_vpif_disp_cont_bufsize); > + > +static unsigned long vpif_cap_cont_buf_offset; > + > +static int __init cfg_vpif_cap_cont_buf_offset(char *p) > +{ > + if (!p) > + return 0; > + > + return kstrtoul(p, 10, &vpif_cap_cont_buf_offset); > +} > +early_param("vpif_cap_cont_buf_offset", cfg_vpif_cap_cont_buf_offset); > + > +static unsigned long vpif_cap_cont_bufsize; > + > +static int __init cfg_vpif_cap_cont_bufsize(char *p) > +{ > + if (!p) > + return 0; > + > + return kstrtoul(p, 10, &vpif_cap_cont_bufsize); > +} > +early_param("vpif_cap_cont_bufsize", cfg_vpif_cap_cont_bufsize); All these kernel parameters will need to be documented in Documentation/kernel-parameters.txt. I suspect they should rather be module parameters? > + > +static struct platform_device da850_vpif_display_dev = { > + .name = "vpif_display", > + .id = -1, > + .dev = { > + .dma_mask = &da850_vpif_dma_mask, > + .coherent_dma_mask = DMA_BIT_MASK(32), > + }, > +}; > + > +static struct platform_device da850_vpif_capture_dev = { > + .name = "vpif_capture", > + .id = -1, > + .dev = { > + .dma_mask = &da850_vpif_dma_mask, > + .coherent_dma_mask = DMA_BIT_MASK(32), > + }, > +}; > + > +int __init da850_register_vpif(void) > +{ > + return platform_device_register(&da850_vpif_dev); > +} > + > +int __init da850_register_vpif_display(struct vpif_display_config > + *display_config) > +{ > + struct resource da850_vpif_display_resource[] = { > + { > + .start = IRQ_DA850_VPIFINT, > + .end = IRQ_DA850_VPIFINT, > + .flags = IORESOURCE_IRQ, > + }, > + {}, > + }; > + unsigned long phys_end_kernel; > + int ret; > + > + if (vpif_disp_cont_bufsize) { > + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + > + (num_physpages << PAGE_SHIFT); > + phys_end_kernel += vpif_disp_cont_buf_offset; > + da850_vpif_display_resource[1].start = phys_end_kernel; > + da850_vpif_display_resource[1].end = phys_end_kernel + > + vpif_disp_cont_bufsize - 1; > + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; > + > + if (!request_mem_region(da850_vpif_display_resource[1].start, > + resource_size(&da850_vpif_display_resource[1]), > + da850_vpif_display_dev.name)) { > + pr_err("region already claimed.\n"); > + return -EBUSY; > + } > + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, > + phys_end_kernel, phys_end_kernel, > + vpif_disp_cont_bufsize, > + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); > + > + if (!ret) > + return -ENOMEM; > + } > + ret = platform_device_add_resources(&da850_vpif_display_dev, > + da850_vpif_display_resource, > + ARRAY_SIZE(da850_vpif_display_resource)); You are taking memory at the end of RAM and passing it as a IO resource to the driver. This is not correct. For contiguous memory needs can you look at the recently merged CMA framework (include/linux/dma-contiguous.h) > + if (ret) > + return -EINVAL; > + > + da850_vpif_display_dev.dev.platform_data = display_config; > + return platform_device_register(&da850_vpif_display_dev); > +} > + > +int __init da850_register_vpif_capture(struct vpif_capture_config > + *capture_config) > +{ > + static struct resource da850_vpif_capture_resource[] = { > + { > + .start = IRQ_DA850_VPIFINT, > + .end = IRQ_DA850_VPIFINT, > + .flags = IORESOURCE_IRQ, > + }, > + { > + .start = IRQ_DA850_VPIFINT, > + .end = IRQ_DA850_VPIFINT, > + .flags = IORESOURCE_IRQ, > + }, > + {}, > + }; > + unsigned long phys_end_kernel; > + int ret; > + > + if (vpif_cap_cont_bufsize) { > + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + > + (num_physpages << PAGE_SHIFT); > + phys_end_kernel += vpif_cap_cont_buf_offset; > + da850_vpif_capture_resource[2].start = phys_end_kernel; > + da850_vpif_capture_resource[2].end = phys_end_kernel + > + vpif_cap_cont_bufsize - 1; > + da850_vpif_capture_resource[2].flags = IORESOURCE_MEM; > + > + if (!request_mem_region(da850_vpif_capture_resource[2].start, > + resource_size(&da850_vpif_capture_resource[2]), > + da850_vpif_capture_dev.name)) { > + pr_err("region already claimed.\n"); > + return -EBUSY; > + } > + ret = dma_declare_coherent_memory(&da850_vpif_capture_dev.dev, > + phys_end_kernel, phys_end_kernel, > + vpif_cap_cont_bufsize, DMA_MEMORY_MAP | > + DMA_MEMORY_EXCLUSIVE); > + > + if (!ret) > + return -ENOMEM; > + } > + ret = platform_device_add_resources(&da850_vpif_capture_dev, > + da850_vpif_capture_resource, > + ARRAY_SIZE(da850_vpif_capture_resource)); The capture has the same problems as the display part above. > + if (ret) > + return -EINVAL; > + > + da850_vpif_capture_dev.dev.platform_data = capture_config; > + return platform_device_register(&da850_vpif_capture_dev); > +} > + > static struct davinci_soc_info davinci_soc_info_da850 = { > .io_desc = da850_io_desc, > .io_desc_num = ARRAY_SIZE(da850_io_desc), > diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h > index a2f1f27..0028bd7 100644 > --- a/arch/arm/mach-davinci/include/mach/da8xx.h > +++ b/arch/arm/mach-davinci/include/mach/da8xx.h > @@ -16,6 +16,7 @@ > #include <linux/platform_device.h> > #include <linux/davinci_emac.h> > #include <linux/spi/spi.h> > +#include <linux/videodev2.h> > > #include <mach/serial.h> > #include <mach/edma.h> > @@ -26,6 +27,8 @@ > #include <mach/pm.h> > #include <mach/spi.h> > > +#include <media/davinci/vpif_types.h> > + > extern void __iomem *da8xx_syscfg0_base; > extern void __iomem *da8xx_syscfg1_base; > > @@ -69,6 +72,7 @@ extern unsigned int da850_max_speed; > #define DA8XX_AEMIF_CS3_BASE 0x62000000 > #define DA8XX_AEMIF_CTL_BASE 0x68000000 > #define DA8XX_ARM_RAM_BASE 0xffff0000 > +#define DA8XX_VPIF_BASE 0x01e17000 These are sorted in increasing order of address. This helps avoid duplicates. Thanks, Sekhar
Hi Sekhar, Thanks for the review. My comments are inlined. On Tuesday 14 August 2012 05:58 PM, Sekhar Nori wrote: > Hi Prabhakar, > > On 7/24/2012 1:13 PM, Prabhakar Lad wrote: >> From: Manjunath Hadli <manjunath.hadli@ti.com> >> >> Add clock, pin mux definitions and registration function for >> VPIF capture and display driver on DA850/OMAP-L138 SoC. >> >> Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> >> Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com> >> Cc: Sekhar Nori <nsekhar@ti.com> >> --- >> arch/arm/mach-davinci/da850.c | 256 ++++++++++++++++++++++++++++ >> arch/arm/mach-davinci/include/mach/da8xx.h | 11 ++ >> arch/arm/mach-davinci/include/mach/mux.h | 42 +++++ >> arch/arm/mach-davinci/include/mach/psc.h | 1 + >> 4 files changed, 310 insertions(+), 0 deletions(-) >> >> diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c >> index b44dc84..c864431 100644 >> --- a/arch/arm/mach-davinci/da850.c >> +++ b/arch/arm/mach-davinci/da850.c >> @@ -347,6 +347,13 @@ static struct clk spi1_clk = { >> .flags = DA850_CLK_ASYNC3, >> }; >> >> +static struct clk vpif_clk = { >> + .name = "vpif", >> + .parent = &pll0_sysclk2, >> + .lpsc = DA850_LPSC1_VPIF, >> + .gpsc = 1, >> +}; >> + >> static struct clk sata_clk = { >> .name = "sata", >> .parent = &pll0_sysclk2, >> @@ -397,6 +404,7 @@ static struct clk_lookup da850_clks[] = { >> CLK(NULL, "usb20", &usb20_clk), >> CLK("spi_davinci.0", NULL, &spi0_clk), >> CLK("spi_davinci.1", NULL, &spi1_clk), >> + CLK(NULL, "vpif", &vpif_clk), > > You should dev_id for lookup instead of con_id. Looking at > drivers/media/video/davinci/vpif.c, there is a single clock that VPIF > needs, so con_id can actually be passed as NULL. > Ok I'll use dev_id. >> CLK("ahci", NULL, &sata_clk), >> CLK(NULL, NULL, NULL), >> }; >> @@ -573,6 +581,46 @@ static const struct mux_config da850_pins[] = { >> MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false) >> MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false) >> MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false) >> + /* VPIF Capture */ >> + MUX_CFG(DA850, VPIF_DIN0, 15, 4, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN1, 15, 0, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN2, 14, 28, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN3, 14, 24, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN4, 14, 20, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN5, 14, 16, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN6, 14, 12, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN7, 14, 8, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN8, 16, 4, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN9, 16, 0, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN10, 15, 28, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN11, 15, 24, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN12, 15, 20, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN13, 15, 16, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN14, 15, 12, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DIN15, 15, 8, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKIN0, 14, 0, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKIN1, 14, 4, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKIN2, 19, 8, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKIN3, 19, 16, 15, 1, false) >> + /* VPIF Display */ >> + MUX_CFG(DA850, VPIF_DOUT0, 17, 4, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT1, 17, 0, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT2, 16, 28, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT3, 16, 24, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT4, 16, 20, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT5, 16, 16, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT6, 16, 12, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT7, 16, 8, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT8, 18, 4, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT9, 18, 0, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT10, 17, 28, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT11, 17, 24, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT12, 17, 20, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT13, 17, 16, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT14, 17, 12, 15, 1, false) >> + MUX_CFG(DA850, VPIF_DOUT15, 17, 8, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKO2, 19, 12, 15, 1, false) >> + MUX_CFG(DA850, VPIF_CLKO3, 19, 20, 15, 1, false) >> #endif >> }; >> >> @@ -595,6 +643,26 @@ const short da850_lcdcntl_pins[] __initdata = { >> -1 >> }; >> >> +const short da850_vpif_capture_pins[] __initdata = { >> + DA850_VPIF_DIN0, DA850_VPIF_DIN1, DA850_VPIF_DIN2, DA850_VPIF_DIN3, >> + DA850_VPIF_DIN4, DA850_VPIF_DIN5, DA850_VPIF_DIN6, DA850_VPIF_DIN7, >> + DA850_VPIF_DIN8, DA850_VPIF_DIN9, DA850_VPIF_DIN10, DA850_VPIF_DIN11, >> + DA850_VPIF_DIN12, DA850_VPIF_DIN13, DA850_VPIF_DIN14, DA850_VPIF_DIN15, >> + DA850_VPIF_CLKIN0, DA850_VPIF_CLKIN1, DA850_VPIF_CLKIN2, >> + DA850_VPIF_CLKIN3, >> + -1 >> +}; >> + >> +const short da850_vpif_display_pins[] __initdata = { >> + DA850_VPIF_DOUT0, DA850_VPIF_DOUT1, DA850_VPIF_DOUT2, DA850_VPIF_DOUT3, >> + DA850_VPIF_DOUT4, DA850_VPIF_DOUT5, DA850_VPIF_DOUT6, DA850_VPIF_DOUT7, >> + DA850_VPIF_DOUT8, DA850_VPIF_DOUT9, DA850_VPIF_DOUT10, >> + DA850_VPIF_DOUT11, DA850_VPIF_DOUT12, DA850_VPIF_DOUT13, >> + DA850_VPIF_DOUT14, DA850_VPIF_DOUT15, DA850_VPIF_CLKO2, >> + DA850_VPIF_CLKO3, >> + -1 >> +}; >> + >> /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ >> static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { >> [IRQ_DA8XX_COMMTX] = 7, >> @@ -1064,6 +1132,194 @@ no_ddrpll_mem: >> return ret; >> } >> >> +/* VPIF resource, platform data */ >> +static u64 da850_vpif_dma_mask = DMA_BIT_MASK(32); >> + >> +static struct resource da850_vpif_resource[] = { >> + { >> + .start = DA8XX_VPIF_BASE, >> + .end = DA8XX_VPIF_BASE + 0xfff, >> + .flags = IORESOURCE_MEM, >> + } >> +}; >> + >> +static struct platform_device da850_vpif_dev = { >> + .name = "vpif", >> + .id = -1, >> + .dev = { >> + .dma_mask = &da850_vpif_dma_mask, >> + .coherent_dma_mask = DMA_BIT_MASK(32), >> + }, >> + .resource = da850_vpif_resource, >> + .num_resources = ARRAY_SIZE(da850_vpif_resource), >> +}; >> + >> +static unsigned long vpif_disp_cont_buf_offset; >> + >> +static int __init cfg_vpif_disp_cont_buf_offset(char *p) >> +{ >> + if (!p) >> + return 0; >> + >> + return kstrtoul(p, 10, &vpif_disp_cont_buf_offset); >> +} >> +early_param("vpif_disp_cont_buf_offset", cfg_vpif_disp_cont_buf_offset); >> + >> +static unsigned long vpif_disp_cont_bufsize; >> + >> +static int __init cfg_vpif_disp_cont_bufsize(char *p) >> +{ >> + if (!p) >> + return 0; >> + >> + return kstrtoul(p, 10, &vpif_disp_cont_bufsize); >> +} >> +early_param("vpif_disp_cont_bufsize", cfg_vpif_disp_cont_bufsize); >> + >> +static unsigned long vpif_cap_cont_buf_offset; >> + >> +static int __init cfg_vpif_cap_cont_buf_offset(char *p) >> +{ >> + if (!p) >> + return 0; >> + >> + return kstrtoul(p, 10, &vpif_cap_cont_buf_offset); >> +} >> +early_param("vpif_cap_cont_buf_offset", cfg_vpif_cap_cont_buf_offset); >> + >> +static unsigned long vpif_cap_cont_bufsize; >> + >> +static int __init cfg_vpif_cap_cont_bufsize(char *p) >> +{ >> + if (!p) >> + return 0; >> + >> + return kstrtoul(p, 10, &vpif_cap_cont_bufsize); >> +} >> +early_param("vpif_cap_cont_bufsize", cfg_vpif_cap_cont_bufsize); > > > All these kernel parameters will need to be documented in > Documentation/kernel-parameters.txt. I suspect they should rather be > module parameters? > This was added since dma_declare_coherent() should be done in the machine file. This was discussed over this thread, http://linux.omap.com/pipermail/davinci-linux-open-source/2012-May/024165.html. >> + >> +static struct platform_device da850_vpif_display_dev = { >> + .name = "vpif_display", >> + .id = -1, >> + .dev = { >> + .dma_mask = &da850_vpif_dma_mask, >> + .coherent_dma_mask = DMA_BIT_MASK(32), >> + }, >> +}; >> + >> +static struct platform_device da850_vpif_capture_dev = { >> + .name = "vpif_capture", >> + .id = -1, >> + .dev = { >> + .dma_mask = &da850_vpif_dma_mask, >> + .coherent_dma_mask = DMA_BIT_MASK(32), >> + }, >> +}; >> + >> +int __init da850_register_vpif(void) >> +{ >> + return platform_device_register(&da850_vpif_dev); >> +} >> + >> +int __init da850_register_vpif_display(struct vpif_display_config >> + *display_config) >> +{ >> + struct resource da850_vpif_display_resource[] = { >> + { >> + .start = IRQ_DA850_VPIFINT, >> + .end = IRQ_DA850_VPIFINT, >> + .flags = IORESOURCE_IRQ, >> + }, >> + {}, >> + }; >> + unsigned long phys_end_kernel; >> + int ret; >> + >> + if (vpif_disp_cont_bufsize) { >> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + >> + (num_physpages << PAGE_SHIFT); >> + phys_end_kernel += vpif_disp_cont_buf_offset; >> + da850_vpif_display_resource[1].start = phys_end_kernel; >> + da850_vpif_display_resource[1].end = phys_end_kernel + >> + vpif_disp_cont_bufsize - 1; >> + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; >> + >> + if (!request_mem_region(da850_vpif_display_resource[1].start, >> + resource_size(&da850_vpif_display_resource[1]), >> + da850_vpif_display_dev.name)) { >> + pr_err("region already claimed.\n"); >> + return -EBUSY; >> + } >> + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, >> + phys_end_kernel, phys_end_kernel, >> + vpif_disp_cont_bufsize, >> + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); >> + >> + if (!ret) >> + return -ENOMEM; >> + } >> + ret = platform_device_add_resources(&da850_vpif_display_dev, >> + da850_vpif_display_resource, >> + ARRAY_SIZE(da850_vpif_display_resource)); > > You are taking memory at the end of RAM and passing it as a IO resource > to the driver. This is not correct. For contiguous memory needs can you > look at the recently merged CMA framework (include/linux/dma-contiguous.h) > Ok. But looks like CMA is enabled for CPU_V6/V6K/V7. If CMA is enabled for ARM926 too than we can use the global CMA itself rather then doing it for each device, then three will be no need to do the above and all the kernel parameters can be removed too. >> + if (ret) >> + return -EINVAL; >> + >> + da850_vpif_display_dev.dev.platform_data = display_config; >> + return platform_device_register(&da850_vpif_display_dev); >> +} >> + >> +int __init da850_register_vpif_capture(struct vpif_capture_config >> + *capture_config) >> +{ >> + static struct resource da850_vpif_capture_resource[] = { >> + { >> + .start = IRQ_DA850_VPIFINT, >> + .end = IRQ_DA850_VPIFINT, >> + .flags = IORESOURCE_IRQ, >> + }, >> + { >> + .start = IRQ_DA850_VPIFINT, >> + .end = IRQ_DA850_VPIFINT, >> + .flags = IORESOURCE_IRQ, >> + }, >> + {}, >> + }; >> + unsigned long phys_end_kernel; >> + int ret; >> + >> + if (vpif_cap_cont_bufsize) { >> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + >> + (num_physpages << PAGE_SHIFT); >> + phys_end_kernel += vpif_cap_cont_buf_offset; >> + da850_vpif_capture_resource[2].start = phys_end_kernel; >> + da850_vpif_capture_resource[2].end = phys_end_kernel + >> + vpif_cap_cont_bufsize - 1; >> + da850_vpif_capture_resource[2].flags = IORESOURCE_MEM; >> + >> + if (!request_mem_region(da850_vpif_capture_resource[2].start, >> + resource_size(&da850_vpif_capture_resource[2]), >> + da850_vpif_capture_dev.name)) { >> + pr_err("region already claimed.\n"); >> + return -EBUSY; >> + } >> + ret = dma_declare_coherent_memory(&da850_vpif_capture_dev.dev, >> + phys_end_kernel, phys_end_kernel, >> + vpif_cap_cont_bufsize, DMA_MEMORY_MAP | >> + DMA_MEMORY_EXCLUSIVE); >> + >> + if (!ret) >> + return -ENOMEM; >> + } >> + ret = platform_device_add_resources(&da850_vpif_capture_dev, >> + da850_vpif_capture_resource, >> + ARRAY_SIZE(da850_vpif_capture_resource)); > > The capture has the same problems as the display part above. > ditto >> + if (ret) >> + return -EINVAL; >> + >> + da850_vpif_capture_dev.dev.platform_data = capture_config; >> + return platform_device_register(&da850_vpif_capture_dev); >> +} >> + >> static struct davinci_soc_info davinci_soc_info_da850 = { >> .io_desc = da850_io_desc, >> .io_desc_num = ARRAY_SIZE(da850_io_desc), >> diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h >> index a2f1f27..0028bd7 100644 >> --- a/arch/arm/mach-davinci/include/mach/da8xx.h >> +++ b/arch/arm/mach-davinci/include/mach/da8xx.h >> @@ -16,6 +16,7 @@ >> #include <linux/platform_device.h> >> #include <linux/davinci_emac.h> >> #include <linux/spi/spi.h> >> +#include <linux/videodev2.h> >> >> #include <mach/serial.h> >> #include <mach/edma.h> >> @@ -26,6 +27,8 @@ >> #include <mach/pm.h> >> #include <mach/spi.h> >> >> +#include <media/davinci/vpif_types.h> >> + >> extern void __iomem *da8xx_syscfg0_base; >> extern void __iomem *da8xx_syscfg1_base; >> >> @@ -69,6 +72,7 @@ extern unsigned int da850_max_speed; >> #define DA8XX_AEMIF_CS3_BASE 0x62000000 >> #define DA8XX_AEMIF_CTL_BASE 0x68000000 >> #define DA8XX_ARM_RAM_BASE 0xffff0000 >> +#define DA8XX_VPIF_BASE 0x01e17000 > > These are sorted in increasing order of address. This helps avoid > duplicates. > Ok I'll keep them sorted. Thx, --Prabhakar > Thanks, > Sekhar >
Hi Prabhakar, On 8/16/2012 3:43 PM, Prabhakar Lad wrote: > On Tuesday 14 August 2012 05:58 PM, Sekhar Nori wrote: [...] >>> +int __init da850_register_vpif_display(struct vpif_display_config >>> + *display_config) >>> +{ >>> + struct resource da850_vpif_display_resource[] = { >>> + { >>> + .start = IRQ_DA850_VPIFINT, >>> + .end = IRQ_DA850_VPIFINT, >>> + .flags = IORESOURCE_IRQ, >>> + }, >>> + {}, >>> + }; >>> + unsigned long phys_end_kernel; >>> + int ret; >>> + >>> + if (vpif_disp_cont_bufsize) { >>> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + >>> + (num_physpages << PAGE_SHIFT); >>> + phys_end_kernel += vpif_disp_cont_buf_offset; >>> + da850_vpif_display_resource[1].start = phys_end_kernel; >>> + da850_vpif_display_resource[1].end = phys_end_kernel + >>> + vpif_disp_cont_bufsize - 1; >>> + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; >>> + >>> + if (!request_mem_region(da850_vpif_display_resource[1].start, >>> + resource_size(&da850_vpif_display_resource[1]), >>> + da850_vpif_display_dev.name)) { >>> + pr_err("region already claimed.\n"); >>> + return -EBUSY; >>> + } >>> + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, >>> + phys_end_kernel, phys_end_kernel, >>> + vpif_disp_cont_bufsize, >>> + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); >>> + >>> + if (!ret) >>> + return -ENOMEM; >>> + } >>> + ret = platform_device_add_resources(&da850_vpif_display_dev, >>> + da850_vpif_display_resource, >>> + ARRAY_SIZE(da850_vpif_display_resource)); >> >> You are taking memory at the end of RAM and passing it as a IO resource >> to the driver. This is not correct. For contiguous memory needs can you >> look at the recently merged CMA framework (include/linux/dma-contiguous.h) >> > Ok. But looks like CMA is enabled for CPU_V6/V6K/V7. If CMA is enabled > for ARM926 too than we can use the global CMA itself rather then doing > it for each device, then three will be no need to do the above and all > the kernel parameters can be removed too. I hadn't followed the CMA development closely so I am not sure of the reasons behind restricting it to v6+. The patch that added this doesn't really talk about why it should be restricted to v6+. I am copying Marek here to see if he can quickly clarify, but may be you can even start a new thread asking about this. Thanks, Sekhar
Hello, On Friday, August 17, 2012 4:59 PM Sekhar Nori wrote: > On 8/16/2012 3:43 PM, Prabhakar Lad wrote: > > On Tuesday 14 August 2012 05:58 PM, Sekhar Nori wrote: > > [...] > > >>> +int __init da850_register_vpif_display(struct vpif_display_config > >>> + *display_config) > >>> +{ > >>> + struct resource da850_vpif_display_resource[] = { > >>> + { > >>> + .start = IRQ_DA850_VPIFINT, > >>> + .end = IRQ_DA850_VPIFINT, > >>> + .flags = IORESOURCE_IRQ, > >>> + }, > >>> + {}, > >>> + }; > >>> + unsigned long phys_end_kernel; > >>> + int ret; > >>> + > >>> + if (vpif_disp_cont_bufsize) { > >>> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + > >>> + (num_physpages << PAGE_SHIFT); > >>> + phys_end_kernel += vpif_disp_cont_buf_offset; > >>> + da850_vpif_display_resource[1].start = phys_end_kernel; > >>> + da850_vpif_display_resource[1].end = phys_end_kernel + > >>> + vpif_disp_cont_bufsize - 1; > >>> + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; > >>> + > >>> + if (!request_mem_region(da850_vpif_display_resource[1].start, > >>> + resource_size(&da850_vpif_display_resource[1]), > >>> + da850_vpif_display_dev.name)) { > >>> + pr_err("region already claimed.\n"); > >>> + return -EBUSY; > >>> + } > >>> + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, > >>> + phys_end_kernel, phys_end_kernel, > >>> + vpif_disp_cont_bufsize, > >>> + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); > >>> + > >>> + if (!ret) > >>> + return -ENOMEM; > >>> + } > >>> + ret = platform_device_add_resources(&da850_vpif_display_dev, > >>> + da850_vpif_display_resource, > >>> + ARRAY_SIZE(da850_vpif_display_resource)); > >> > >> You are taking memory at the end of RAM and passing it as a IO resource > >> to the driver. This is not correct. For contiguous memory needs can you > >> look at the recently merged CMA framework (include/linux/dma-contiguous.h) > >> > > Ok. But looks like CMA is enabled for CPU_V6/V6K/V7. If CMA is enabled > > for ARM926 too than we can use the global CMA itself rather then doing > > it for each device, then three will be no need to do the above and all > > the kernel parameters can be removed too. > > I hadn't followed the CMA development closely so I am not sure of the > reasons behind restricting it to v6+. The patch that added this doesn't > really talk about why it should be restricted to v6+. I am copying Marek > here to see if he can quickly clarify, but may be you can even start a > new thread asking about this. Frankly, this is a leftover from some earlier suggestions that CMA should solve the aliasing of coherent mappings, which might be a problem on v6+. If it works correctly on pre-v6, then this dependency should be removed. Feel free to submit a patch and I will take it to my fixes branch. Best regards
Hi Marek, On Fri, Aug 17, 2012 at 8:39 PM, Marek Szyprowski <m.szyprowski@samsung.com> wrote: > Hello, > > On Friday, August 17, 2012 4:59 PM Sekhar Nori wrote: > >> On 8/16/2012 3:43 PM, Prabhakar Lad wrote: >> > On Tuesday 14 August 2012 05:58 PM, Sekhar Nori wrote: >> >> [...] >> >> >>> +int __init da850_register_vpif_display(struct vpif_display_config >> >>> + *display_config) >> >>> +{ >> >>> + struct resource da850_vpif_display_resource[] = { >> >>> + { >> >>> + .start = IRQ_DA850_VPIFINT, >> >>> + .end = IRQ_DA850_VPIFINT, >> >>> + .flags = IORESOURCE_IRQ, >> >>> + }, >> >>> + {}, >> >>> + }; >> >>> + unsigned long phys_end_kernel; >> >>> + int ret; >> >>> + >> >>> + if (vpif_disp_cont_bufsize) { >> >>> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + >> >>> + (num_physpages << PAGE_SHIFT); >> >>> + phys_end_kernel += vpif_disp_cont_buf_offset; >> >>> + da850_vpif_display_resource[1].start = phys_end_kernel; >> >>> + da850_vpif_display_resource[1].end = phys_end_kernel + >> >>> + vpif_disp_cont_bufsize - 1; >> >>> + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; >> >>> + >> >>> + if (!request_mem_region(da850_vpif_display_resource[1].start, >> >>> + resource_size(&da850_vpif_display_resource[1]), >> >>> + da850_vpif_display_dev.name)) { >> >>> + pr_err("region already claimed.\n"); >> >>> + return -EBUSY; >> >>> + } >> >>> + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, >> >>> + phys_end_kernel, phys_end_kernel, >> >>> + vpif_disp_cont_bufsize, >> >>> + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); >> >>> + >> >>> + if (!ret) >> >>> + return -ENOMEM; >> >>> + } >> >>> + ret = platform_device_add_resources(&da850_vpif_display_dev, >> >>> + da850_vpif_display_resource, >> >>> + ARRAY_SIZE(da850_vpif_display_resource)); >> >> >> >> You are taking memory at the end of RAM and passing it as a IO resource >> >> to the driver. This is not correct. For contiguous memory needs can you >> >> look at the recently merged CMA framework (include/linux/dma-contiguous.h) >> >> >> > Ok. But looks like CMA is enabled for CPU_V6/V6K/V7. If CMA is enabled >> > for ARM926 too than we can use the global CMA itself rather then doing >> > it for each device, then three will be no need to do the above and all >> > the kernel parameters can be removed too. >> >> I hadn't followed the CMA development closely so I am not sure of the >> reasons behind restricting it to v6+. The patch that added this doesn't >> really talk about why it should be restricted to v6+. I am copying Marek >> here to see if he can quickly clarify, but may be you can even start a >> new thread asking about this. > > Frankly, this is a leftover from some earlier suggestions that CMA should solve the > aliasing of coherent mappings, which might be a problem on v6+. If it works correctly > on pre-v6, then this dependency should be removed. Feel free to submit a patch and > I will take it to my fixes branch. > I have created a patch for enabling CMA on CPU32_v5 [1], and also tested it works. Soon posting this patch. [1] http://git.linuxtv.org/mhadli/v4l-dvb-davinci_devices.git/commitdiff/e940a1b9262bde96eec4b18971a6307f24262667?hp=2f30ae4ee373fe4c69ab1606373538dcc99ed283 Thanks and Regards, --Prabhakar Lad > Best regards > -- > Marek Szyprowski > Samsung Poland R&D Center > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Hi Prabhakar, On Friday, August 17, 2012 5:50 PM Prabhakar Lad wrote: > On Fri, Aug 17, 2012 at 8:39 PM, Marek Szyprowski > <m.szyprowski@samsung.com> wrote: > > Hello, > > > > On Friday, August 17, 2012 4:59 PM Sekhar Nori wrote: > > > >> On 8/16/2012 3:43 PM, Prabhakar Lad wrote: > >> > On Tuesday 14 August 2012 05:58 PM, Sekhar Nori wrote: > >> > >> [...] > >> > >> >>> +int __init da850_register_vpif_display(struct vpif_display_config > >> >>> + *display_config) > >> >>> +{ > >> >>> + struct resource da850_vpif_display_resource[] = { > >> >>> + { > >> >>> + .start = IRQ_DA850_VPIFINT, > >> >>> + .end = IRQ_DA850_VPIFINT, > >> >>> + .flags = IORESOURCE_IRQ, > >> >>> + }, > >> >>> + {}, > >> >>> + }; > >> >>> + unsigned long phys_end_kernel; > >> >>> + int ret; > >> >>> + > >> >>> + if (vpif_disp_cont_bufsize) { > >> >>> + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + > >> >>> + (num_physpages << PAGE_SHIFT); > >> >>> + phys_end_kernel += vpif_disp_cont_buf_offset; > >> >>> + da850_vpif_display_resource[1].start = phys_end_kernel; > >> >>> + da850_vpif_display_resource[1].end = phys_end_kernel + > >> >>> + vpif_disp_cont_bufsize - 1; > >> >>> + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; > >> >>> + > >> >>> + if (!request_mem_region(da850_vpif_display_resource[1].start, > >> >>> + resource_size(&da850_vpif_display_resource[1]), > >> >>> + da850_vpif_display_dev.name)) { > >> >>> + pr_err("region already claimed.\n"); > >> >>> + return -EBUSY; > >> >>> + } > >> >>> + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, > >> >>> + phys_end_kernel, phys_end_kernel, > >> >>> + vpif_disp_cont_bufsize, > >> >>> + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); > >> >>> + > >> >>> + if (!ret) > >> >>> + return -ENOMEM; > >> >>> + } > >> >>> + ret = platform_device_add_resources(&da850_vpif_display_dev, > >> >>> + da850_vpif_display_resource, > >> >>> + ARRAY_SIZE(da850_vpif_display_resource)); > >> >> > >> >> You are taking memory at the end of RAM and passing it as a IO resource > >> >> to the driver. This is not correct. For contiguous memory needs can you > >> >> look at the recently merged CMA framework (include/linux/dma-contiguous.h) > >> >> > >> > Ok. But looks like CMA is enabled for CPU_V6/V6K/V7. If CMA is enabled > >> > for ARM926 too than we can use the global CMA itself rather then doing > >> > it for each device, then three will be no need to do the above and all > >> > the kernel parameters can be removed too. > >> > >> I hadn't followed the CMA development closely so I am not sure of the > >> reasons behind restricting it to v6+. The patch that added this doesn't > >> really talk about why it should be restricted to v6+. I am copying Marek > >> here to see if he can quickly clarify, but may be you can even start a > >> new thread asking about this. > > > > Frankly, this is a leftover from some earlier suggestions that CMA should solve the > > aliasing of coherent mappings, which might be a problem on v6+. If it works correctly > > on pre-v6, then this dependency should be removed. Feel free to submit a patch and > > I will take it to my fixes branch. > > > > I have created a patch for enabling CMA on CPU32_v5 [1], and also > tested it works. > Soon posting this patch. > > [1] http://git.linuxtv.org/mhadli/v4l-dvb- > davinci_devices.git/commitdiff/e940a1b9262bde96eec4b18971a6307f24262667?hp=2f30ae4ee373fe4c69a > b1606373538dcc99ed283 I've taken a look at this issue and realized that the dependency on enabled MMU is much better idea instead of listing possible CPU versions, so I've posted a new patch: http://lists.linaro.org/pipermail/linaro-mm-sig/2012-August/002374.html Best regards
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index b44dc84..c864431 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -347,6 +347,13 @@ static struct clk spi1_clk = { .flags = DA850_CLK_ASYNC3, }; +static struct clk vpif_clk = { + .name = "vpif", + .parent = &pll0_sysclk2, + .lpsc = DA850_LPSC1_VPIF, + .gpsc = 1, +}; + static struct clk sata_clk = { .name = "sata", .parent = &pll0_sysclk2, @@ -397,6 +404,7 @@ static struct clk_lookup da850_clks[] = { CLK(NULL, "usb20", &usb20_clk), CLK("spi_davinci.0", NULL, &spi0_clk), CLK("spi_davinci.1", NULL, &spi1_clk), + CLK(NULL, "vpif", &vpif_clk), CLK("ahci", NULL, &sata_clk), CLK(NULL, NULL, NULL), }; @@ -573,6 +581,46 @@ static const struct mux_config da850_pins[] = { MUX_CFG(DA850, GPIO6_10, 13, 20, 15, 8, false) MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false) MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false) + /* VPIF Capture */ + MUX_CFG(DA850, VPIF_DIN0, 15, 4, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN1, 15, 0, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN2, 14, 28, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN3, 14, 24, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN4, 14, 20, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN5, 14, 16, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN6, 14, 12, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN7, 14, 8, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN8, 16, 4, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN9, 16, 0, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN10, 15, 28, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN11, 15, 24, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN12, 15, 20, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN13, 15, 16, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN14, 15, 12, 15, 1, false) + MUX_CFG(DA850, VPIF_DIN15, 15, 8, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKIN0, 14, 0, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKIN1, 14, 4, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKIN2, 19, 8, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKIN3, 19, 16, 15, 1, false) + /* VPIF Display */ + MUX_CFG(DA850, VPIF_DOUT0, 17, 4, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT1, 17, 0, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT2, 16, 28, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT3, 16, 24, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT4, 16, 20, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT5, 16, 16, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT6, 16, 12, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT7, 16, 8, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT8, 18, 4, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT9, 18, 0, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT10, 17, 28, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT11, 17, 24, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT12, 17, 20, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT13, 17, 16, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT14, 17, 12, 15, 1, false) + MUX_CFG(DA850, VPIF_DOUT15, 17, 8, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKO2, 19, 12, 15, 1, false) + MUX_CFG(DA850, VPIF_CLKO3, 19, 20, 15, 1, false) #endif }; @@ -595,6 +643,26 @@ const short da850_lcdcntl_pins[] __initdata = { -1 }; +const short da850_vpif_capture_pins[] __initdata = { + DA850_VPIF_DIN0, DA850_VPIF_DIN1, DA850_VPIF_DIN2, DA850_VPIF_DIN3, + DA850_VPIF_DIN4, DA850_VPIF_DIN5, DA850_VPIF_DIN6, DA850_VPIF_DIN7, + DA850_VPIF_DIN8, DA850_VPIF_DIN9, DA850_VPIF_DIN10, DA850_VPIF_DIN11, + DA850_VPIF_DIN12, DA850_VPIF_DIN13, DA850_VPIF_DIN14, DA850_VPIF_DIN15, + DA850_VPIF_CLKIN0, DA850_VPIF_CLKIN1, DA850_VPIF_CLKIN2, + DA850_VPIF_CLKIN3, + -1 +}; + +const short da850_vpif_display_pins[] __initdata = { + DA850_VPIF_DOUT0, DA850_VPIF_DOUT1, DA850_VPIF_DOUT2, DA850_VPIF_DOUT3, + DA850_VPIF_DOUT4, DA850_VPIF_DOUT5, DA850_VPIF_DOUT6, DA850_VPIF_DOUT7, + DA850_VPIF_DOUT8, DA850_VPIF_DOUT9, DA850_VPIF_DOUT10, + DA850_VPIF_DOUT11, DA850_VPIF_DOUT12, DA850_VPIF_DOUT13, + DA850_VPIF_DOUT14, DA850_VPIF_DOUT15, DA850_VPIF_CLKO2, + DA850_VPIF_CLKO3, + -1 +}; + /* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */ static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = { [IRQ_DA8XX_COMMTX] = 7, @@ -1064,6 +1132,194 @@ no_ddrpll_mem: return ret; } +/* VPIF resource, platform data */ +static u64 da850_vpif_dma_mask = DMA_BIT_MASK(32); + +static struct resource da850_vpif_resource[] = { + { + .start = DA8XX_VPIF_BASE, + .end = DA8XX_VPIF_BASE + 0xfff, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device da850_vpif_dev = { + .name = "vpif", + .id = -1, + .dev = { + .dma_mask = &da850_vpif_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .resource = da850_vpif_resource, + .num_resources = ARRAY_SIZE(da850_vpif_resource), +}; + +static unsigned long vpif_disp_cont_buf_offset; + +static int __init cfg_vpif_disp_cont_buf_offset(char *p) +{ + if (!p) + return 0; + + return kstrtoul(p, 10, &vpif_disp_cont_buf_offset); +} +early_param("vpif_disp_cont_buf_offset", cfg_vpif_disp_cont_buf_offset); + +static unsigned long vpif_disp_cont_bufsize; + +static int __init cfg_vpif_disp_cont_bufsize(char *p) +{ + if (!p) + return 0; + + return kstrtoul(p, 10, &vpif_disp_cont_bufsize); +} +early_param("vpif_disp_cont_bufsize", cfg_vpif_disp_cont_bufsize); + +static unsigned long vpif_cap_cont_buf_offset; + +static int __init cfg_vpif_cap_cont_buf_offset(char *p) +{ + if (!p) + return 0; + + return kstrtoul(p, 10, &vpif_cap_cont_buf_offset); +} +early_param("vpif_cap_cont_buf_offset", cfg_vpif_cap_cont_buf_offset); + +static unsigned long vpif_cap_cont_bufsize; + +static int __init cfg_vpif_cap_cont_bufsize(char *p) +{ + if (!p) + return 0; + + return kstrtoul(p, 10, &vpif_cap_cont_bufsize); +} +early_param("vpif_cap_cont_bufsize", cfg_vpif_cap_cont_bufsize); + +static struct platform_device da850_vpif_display_dev = { + .name = "vpif_display", + .id = -1, + .dev = { + .dma_mask = &da850_vpif_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +static struct platform_device da850_vpif_capture_dev = { + .name = "vpif_capture", + .id = -1, + .dev = { + .dma_mask = &da850_vpif_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +int __init da850_register_vpif(void) +{ + return platform_device_register(&da850_vpif_dev); +} + +int __init da850_register_vpif_display(struct vpif_display_config + *display_config) +{ + struct resource da850_vpif_display_resource[] = { + { + .start = IRQ_DA850_VPIFINT, + .end = IRQ_DA850_VPIFINT, + .flags = IORESOURCE_IRQ, + }, + {}, + }; + unsigned long phys_end_kernel; + int ret; + + if (vpif_disp_cont_bufsize) { + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + + (num_physpages << PAGE_SHIFT); + phys_end_kernel += vpif_disp_cont_buf_offset; + da850_vpif_display_resource[1].start = phys_end_kernel; + da850_vpif_display_resource[1].end = phys_end_kernel + + vpif_disp_cont_bufsize - 1; + da850_vpif_display_resource[1].flags = IORESOURCE_MEM; + + if (!request_mem_region(da850_vpif_display_resource[1].start, + resource_size(&da850_vpif_display_resource[1]), + da850_vpif_display_dev.name)) { + pr_err("region already claimed.\n"); + return -EBUSY; + } + ret = dma_declare_coherent_memory(&da850_vpif_display_dev.dev, + phys_end_kernel, phys_end_kernel, + vpif_disp_cont_bufsize, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + if (!ret) + return -ENOMEM; + } + ret = platform_device_add_resources(&da850_vpif_display_dev, + da850_vpif_display_resource, + ARRAY_SIZE(da850_vpif_display_resource)); + if (ret) + return -EINVAL; + + da850_vpif_display_dev.dev.platform_data = display_config; + return platform_device_register(&da850_vpif_display_dev); +} + +int __init da850_register_vpif_capture(struct vpif_capture_config + *capture_config) +{ + static struct resource da850_vpif_capture_resource[] = { + { + .start = IRQ_DA850_VPIFINT, + .end = IRQ_DA850_VPIFINT, + .flags = IORESOURCE_IRQ, + }, + { + .start = IRQ_DA850_VPIFINT, + .end = IRQ_DA850_VPIFINT, + .flags = IORESOURCE_IRQ, + }, + {}, + }; + unsigned long phys_end_kernel; + int ret; + + if (vpif_cap_cont_bufsize) { + phys_end_kernel = virt_to_phys((void *)PAGE_OFFSET) + + (num_physpages << PAGE_SHIFT); + phys_end_kernel += vpif_cap_cont_buf_offset; + da850_vpif_capture_resource[2].start = phys_end_kernel; + da850_vpif_capture_resource[2].end = phys_end_kernel + + vpif_cap_cont_bufsize - 1; + da850_vpif_capture_resource[2].flags = IORESOURCE_MEM; + + if (!request_mem_region(da850_vpif_capture_resource[2].start, + resource_size(&da850_vpif_capture_resource[2]), + da850_vpif_capture_dev.name)) { + pr_err("region already claimed.\n"); + return -EBUSY; + } + ret = dma_declare_coherent_memory(&da850_vpif_capture_dev.dev, + phys_end_kernel, phys_end_kernel, + vpif_cap_cont_bufsize, DMA_MEMORY_MAP | + DMA_MEMORY_EXCLUSIVE); + + if (!ret) + return -ENOMEM; + } + ret = platform_device_add_resources(&da850_vpif_capture_dev, + da850_vpif_capture_resource, + ARRAY_SIZE(da850_vpif_capture_resource)); + if (ret) + return -EINVAL; + + da850_vpif_capture_dev.dev.platform_data = capture_config; + return platform_device_register(&da850_vpif_capture_dev); +} + static struct davinci_soc_info davinci_soc_info_da850 = { .io_desc = da850_io_desc, .io_desc_num = ARRAY_SIZE(da850_io_desc), diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index a2f1f27..0028bd7 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -16,6 +16,7 @@ #include <linux/platform_device.h> #include <linux/davinci_emac.h> #include <linux/spi/spi.h> +#include <linux/videodev2.h> #include <mach/serial.h> #include <mach/edma.h> @@ -26,6 +27,8 @@ #include <mach/pm.h> #include <mach/spi.h> +#include <media/davinci/vpif_types.h> + extern void __iomem *da8xx_syscfg0_base; extern void __iomem *da8xx_syscfg1_base; @@ -69,6 +72,7 @@ extern unsigned int da850_max_speed; #define DA8XX_AEMIF_CS3_BASE 0x62000000 #define DA8XX_AEMIF_CTL_BASE 0x68000000 #define DA8XX_ARM_RAM_BASE 0xffff0000 +#define DA8XX_VPIF_BASE 0x01e17000 void __init da830_init(void); void __init da850_init(void); @@ -92,6 +96,11 @@ int da8xx_register_cpuidle(void); void __iomem * __init da8xx_get_mem_ctlr(void); int da850_register_pm(struct platform_device *pdev); int __init da850_register_sata(unsigned long refclkpn); +int __init da850_register_vpif(void); +int __init da850_register_vpif_display + (struct vpif_display_config *display_config); +int __init da850_register_vpif_capture + (struct vpif_capture_config *capture_config); void da8xx_restart(char mode, const char *cmd); extern struct platform_device da8xx_serial_device; @@ -126,6 +135,8 @@ extern const short da830_ecap1_pins[]; extern const short da830_ecap2_pins[]; extern const short da830_eqep0_pins[]; extern const short da830_eqep1_pins[]; +extern const short da850_vpif_capture_pins[]; +extern const short da850_vpif_display_pins[]; extern const short da850_i2c0_pins[]; extern const short da850_i2c1_pins[]; diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h index a7e92fc..9e95b8a 100644 --- a/arch/arm/mach-davinci/include/mach/mux.h +++ b/arch/arm/mach-davinci/include/mach/mux.h @@ -928,6 +928,48 @@ enum davinci_da850_index { DA850_GPIO6_10, DA850_GPIO6_13, DA850_RTC_ALARM, + + /* VPIF Capture */ + DA850_VPIF_DIN0, + DA850_VPIF_DIN1, + DA850_VPIF_DIN2, + DA850_VPIF_DIN3, + DA850_VPIF_DIN4, + DA850_VPIF_DIN5, + DA850_VPIF_DIN6, + DA850_VPIF_DIN7, + DA850_VPIF_DIN8, + DA850_VPIF_DIN9, + DA850_VPIF_DIN10, + DA850_VPIF_DIN11, + DA850_VPIF_DIN12, + DA850_VPIF_DIN13, + DA850_VPIF_DIN14, + DA850_VPIF_DIN15, + DA850_VPIF_CLKIN0, + DA850_VPIF_CLKIN1, + DA850_VPIF_CLKIN2, + DA850_VPIF_CLKIN3, + + /* VPIF Display */ + DA850_VPIF_DOUT0, + DA850_VPIF_DOUT1, + DA850_VPIF_DOUT2, + DA850_VPIF_DOUT3, + DA850_VPIF_DOUT4, + DA850_VPIF_DOUT5, + DA850_VPIF_DOUT6, + DA850_VPIF_DOUT7, + DA850_VPIF_DOUT8, + DA850_VPIF_DOUT9, + DA850_VPIF_DOUT10, + DA850_VPIF_DOUT11, + DA850_VPIF_DOUT12, + DA850_VPIF_DOUT13, + DA850_VPIF_DOUT14, + DA850_VPIF_DOUT15, + DA850_VPIF_CLKO2, + DA850_VPIF_CLKO3, }; enum davinci_tnetv107x_index { diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h index 405318e..40a0027 100644 --- a/arch/arm/mach-davinci/include/mach/psc.h +++ b/arch/arm/mach-davinci/include/mach/psc.h @@ -166,6 +166,7 @@ #define DA830_LPSC1_McASP1 8 #define DA850_LPSC1_SATA 8 #define DA830_LPSC1_McASP2 9 +#define DA850_LPSC1_VPIF 9 #define DA8XX_LPSC1_SPI1 10 #define DA8XX_LPSC1_I2C 11 #define DA8XX_LPSC1_UART1 12