Hi Mauro, On Wednesday 23 December 2015 10:32:42 Mauro Carvalho Chehab wrote: > Em Wed, 16 Dec 2015 16:03:01 +0200 Sakari Ailus escreveu: > > On Wed, Dec 16, 2015 at 03:32:15PM +0200, Sakari Ailus wrote: > > > This is the third version of the unrestricted media entity ID range > > > support set. I've taken Mauro's comments into account and fixed a number > > > of bugs as well (omap3isp memory leak and omap4iss stream start). > > > > Javier: Mauro told me you might have OMAP4 hardware. Would you be able to > > test the OMAP4 ISS with these patches? > > > > Thanks. > > Sakari, > > Testing with OMAP4 is not possible. The driver is broken: it doesn't > support DT, and the required pdata definition is missing.
What do you mean by missing ? struct iss_platform_data is defined in include/media/omap4iss.h. > Both Javier and I tried to fix it in the last couple days, in order to test > it with a PandaBoard. We came with the enclosed patch, but it is still > incomplete. Based on what's written on this e-mail: > https://www.mail-archive.com/linux-media@vger.kernel.org/msg89247.html > > It seems that this is an already known issue. > > So, I'm considering this driver as BROKEN. Not much sense on doing any > tests on it, while this doesn't get fixed. > > Regards, > Mauro > > PS.: With the enclosed patch, I got this error: > [ 0.267639] platform omap4iss: failed to claim resource 2 > > But, even if I comment out the platform code that returns this error, > there are still other missing things: > [ 7.131622] omap4iss omap4iss: Unable to get iss_fck clock info > [ 7.137878] omap4iss omap4iss: Unable to get clocks > > --- > > ARM: add a pdata quirks for OMAP4 panda camera > > This is a hack to make it to believe that the pandaboard > has a camera. > > > diff --git a/arch/arm/mach-omap2/pdata-quirks.c > b/arch/arm/mach-omap2/pdata-quirks.c index 1dfe34654c43..998bb6936dc0 > 100644 > --- a/arch/arm/mach-omap2/pdata-quirks.c > +++ b/arch/arm/mach-omap2/pdata-quirks.c > @@ -36,6 +36,8 @@ > #include "soc.h" > #include "hsmmc.h" > > +#include "../../../drivers/staging/media/omap4iss/iss.h" > + > struct pdata_init { > const char *compatible; > void (*fn)(void); > @@ -408,6 +410,124 @@ static void __init t410_abort_init(void) > } > #endif > > +#ifdef CONFIG_ARCH_OMAP4 > + > +static struct resource panda_iss_resource[] = { > + { > + .start = 0x52000000, > + .end = 0x52000000 + 0x100, > + .name = "top", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52001000, > + .end = 0x52001000 + 0x170, > + .name = "csi2_a_regs1", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52001170, > + .end = 0x52001170 + 0x020, > + .name = "camerarx_core1", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52001400, > + .end = 0x52001400 + 0x170, > + .name = "csi2_b_regs1", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52001570, > + .end = 0x52001570 + 0x020, > + .name = "camerarx_core2", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52002000, > + .end = 0x52002000 + 0x200, > + .name = "bte", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52010000, > + .end = 0x52010000 + 0x0a0, > + .name = "isp_sys1", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52010400, > + .end = 0x52010400 + 0x400, > + .name = "isp_resizer", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52010800, > + .end = 0x52010800 + 0x800, > + .name = "isp_ipipe", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52011000, > + .end = 0x52011000 + 0x200, > + .name = "isp_isif", > + .flags = IORESOURCE_MEM, > + }, { > + .start = 0x52011200, > + .end = 0x52011200 + 0x080, > + .name = "isp_ipipeif", > + .flags = IORESOURCE_MEM, > + } > +}; > + > +static struct i2c_board_info panda_camera_i2c_device = { > + I2C_BOARD_INFO("smia", 0x10), > +}; > + > +static struct iss_subdev_i2c_board_info panda_camera_subdevs[] = { > + { > + .board_info = &panda_camera_i2c_device, > + .i2c_adapter_id = 3, > + }, > +}; > + > +static struct iss_v4l2_subdevs_group iss_subdevs[] = { > + { > + .subdevs = panda_camera_subdevs, > + .interface = ISS_INTERFACE_CSI2A_PHY1, > + .bus = { > + .csi2 = { > + .lanecfg = { > + .clk = { > + .pol = 0, > + .pos = 2, > + }, > + .data[0] = { > + .pol = 0, > + .pos = 1, > + }, > + .data[1] = { > + .pol = 0, > + .pos = 3, > + }, > + }, > + } }, > + }, > + { /* sentinel */ }, > +}; > + > +static struct iss_platform_data iss_pdata = { > + .subdevs = iss_subdevs, > +}; > + > +static struct platform_device omap4iss_device = { > + .name = "omap4iss", > + .id = -1, > + .dev = { > + .platform_data = &iss_pdata, > + }, > + .num_resources = ARRAY_SIZE(panda_iss_resource), > + .resource = panda_iss_resource, > +}; > + > +static void __init omap4_panda_legacy_init(void) > +{ > + platform_device_register(&omap4iss_device); > +} > + > +#endif /* CONFIG_ARCH_OMAP4 */ > + > #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) > static struct iommu_platform_data omap4_iommu_pdata = { > .reset_name = "mmu_cache", > @@ -539,6 +659,9 @@ static struct pdata_init pdata_quirks[] __initdata = { > #ifdef CONFIG_SOC_TI81XX > { "hp,t410", t410_abort_init, }, > #endif > +#ifdef CONFIG_ARCH_OMAP4 > + { "ti,omap4-panda", omap4_panda_legacy_init, }, > +#endif > #ifdef CONFIG_SOC_OMAP5 > { "ti,omap5-uevm", omap5_uevm_legacy_init, }, > #endif > > diff --git a/drivers/staging/media/omap4iss/iss.c > b/drivers/staging/media/omap4iss/iss.c index 30b473cfb020..b528cacda17b > 100644 > --- a/drivers/staging/media/omap4iss/iss.c > +++ b/drivers/staging/media/omap4iss/iss.c > @@ -1412,6 +1412,9 @@ static int iss_probe(struct platform_device *pdev) > unsigned int i; > int ret; > > + > +printk("%s: pdata=%p\n", __func__, pdata); > + > if (!pdata) > return -EINVAL; > > @@ -1437,24 +1440,33 @@ static int iss_probe(struct platform_device *pdev) > iss->syscon = syscon_regmap_lookup_by_compatible("syscon"); > if (IS_ERR(iss->syscon)) { > ret = PTR_ERR(iss->syscon); > + dev_err(iss->dev, "Unable to find syscon"); > goto error; > } > > /* Clocks */ > ret = iss_map_mem_resource(pdev, iss, OMAP4_ISS_MEM_TOP); > - if (ret < 0) > + if (ret < 0) { > + dev_err(iss->dev, "Unable to map memory resource\n"); > goto error; > + } > > ret = iss_get_clocks(iss); > - if (ret < 0) > + if (ret < 0) { > + dev_err(iss->dev, "Unable to get clocks\n"); > goto error; > + } > > - if (!omap4iss_get(iss)) > + if (!omap4iss_get(iss)) { > + dev_err(iss->dev, "Failed to acquire ISS resource\n"); > goto error; > + } > > ret = iss_reset(iss); > - if (ret < 0) > + if (ret < 0) { > + dev_err(iss->dev, "Unable to reset ISS\n"); > goto error_iss; > + } > > iss->revision = iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_HL_REVISION); > dev_info(iss->dev, "Revision %08x found\n", iss->revision); -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
