diff options
author | Arnd Bergmann <arnd@arndb.de> | 2021-04-01 20:59:59 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2021-04-01 21:00:00 +0200 |
commit | 1d79dca631e8e7fe886f44f49b1e0a16e1ac1dfc (patch) | |
tree | 6add3b4c9ba6bb757301e30de7503de2d88c3a55 /drivers | |
parent | 7da68c64bc9037da7e470bfd219a2b5b7e7c5af1 (diff) | |
parent | d995d3d025bbd2d89abf12418f20d19bc0cb0130 (diff) | |
download | linux-1d79dca631e8e7fe886f44f49b1e0a16e1ac1dfc.tar.gz |
Merge tag 'omap-for-v5.13/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/drivers
Driver changes for omaps for genpd support for v5.13 In order to move omap4/5 and dra7 to probe with devicetree data and genpd, we need to patch the related drivers to prepare. These are mostly ti-sysc interconnect target module driver changes and soc init changes. However, there are minor changes to other drivers too. There are changes for pci-dra7xx probe, omap-prm idle configuration, and a omap5 clock change: - ti-sysc needs iorange check improved when the interconnect target module has no control registers listed - ti-sysc needs to probe l4_wkup and l4_cfg interconnects first to avoid issues with missing resources and unnecessary deferred probe - ti-sysc debug option can now detect more devices - ti-sysc now warns if an old incomplete devicetree data is found as we now rely on it being complete for am3 and 4 - soc init code needs to check for prcm and prm nodes for omap4/5 and dra7 - omap-prm driver needs to enable autoidle retention support for omap4 - omap5 clocks are missing gpmc and ocmc clock registers - pci-dra7xx now needs to use builtin_platform_driver instead of using builtin_platform_driver_probe for deferred probe to work There are also few minor non-urgent fixes: - soc init code pdata_quirks_init_clocks should be static - ti-sysc has few unneeded semiconon typos - ti-sysc can use kzalloc instead of kcalloc for a single element * tag 'omap-for-v5.13/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Use kzalloc for allocating only one thing bus: ti-sysc: remove unneeded semicolon ARM: OMAP2+: Make symbol 'pdata_quirks_init_clocks' static PCI: pci-dra7xx: Prepare for deferred probe with module_platform_driver clk: ti: omap5: Add missing gpmc and ocmc clkctrl soc: ti: omap-prm: Allow hardware supported retention when idle ARM: OMAP2+: Init both prm and prcm nodes early for clocks bus: ti-sysc: Check for old incomplete dtb bus: ti-sysc: Detect more modules for debugging bus: ti-sysc: Probe for l4_wkup and l4_cfg interconnect devices first bus: ti-sysc: Fix initializing module_pa for modules without sysc register ARM: dts: Fix moving mmc devices with aliases for omap4 & 5 ARM: dts: Drop duplicate sha2md5_fck to fix clk_disable race soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva bus: ti-sysc: Fix warning on unbind if reset is not deasserted ARM: OMAP2+: Fix smartreflex init regression after dropping legacy data soc: ti: omap-prm: Fix reboot issue with invalid pcie reset map for dra7 ARM: dts: am33xx: add aliases for mmc interfaces bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD Link: https://lore.kernel.org/r/pull-1617004205-537424@atomide.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/bus/omap_l3_noc.c | 4 | ||||
-rw-r--r-- | drivers/bus/ti-sysc.c | 88 | ||||
-rw-r--r-- | drivers/clk/ti/clk-54xx.c | 2 | ||||
-rw-r--r-- | drivers/pci/controller/dwc/pci-dra7xx.c | 13 | ||||
-rw-r--r-- | drivers/soc/ti/omap_prm.c | 24 |
5 files changed, 110 insertions, 21 deletions
diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c index b040447575ad..dcfb32ee5cb6 100644 --- a/drivers/bus/omap_l3_noc.c +++ b/drivers/bus/omap_l3_noc.c @@ -285,7 +285,7 @@ static int omap_l3_probe(struct platform_device *pdev) */ l3->debug_irq = platform_get_irq(pdev, 0); ret = devm_request_irq(l3->dev, l3->debug_irq, l3_interrupt_handler, - 0x0, "l3-dbg-irq", l3); + IRQF_NO_THREAD, "l3-dbg-irq", l3); if (ret) { dev_err(l3->dev, "request_irq failed for %d\n", l3->debug_irq); @@ -294,7 +294,7 @@ static int omap_l3_probe(struct platform_device *pdev) l3->app_irq = platform_get_irq(pdev, 1); ret = devm_request_irq(l3->dev, l3->app_irq, l3_interrupt_handler, - 0x0, "l3-app-irq", l3); + IRQF_NO_THREAD, "l3-app-irq", l3); if (ret) dev_err(l3->dev, "request_irq failed for %d\n", l3->app_irq); diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index a27d751cf219..8880259b41ae 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -288,7 +288,7 @@ static int sysc_add_named_clock_from_child(struct sysc *ddata, * limit for clk_get(). If cl ever needs to be freed, it should be done * with clkdev_drop(). */ - cl = kcalloc(1, sizeof(*cl), GFP_KERNEL); + cl = kzalloc(sizeof(*cl), GFP_KERNEL); if (!cl) return -ENOMEM; @@ -635,6 +635,51 @@ static int sysc_parse_and_check_child_range(struct sysc *ddata) return 0; } +/* Interconnect instances to probe before l4_per instances */ +static struct resource early_bus_ranges[] = { + /* am3/4 l4_wkup */ + { .start = 0x44c00000, .end = 0x44c00000 + 0x300000, }, + /* omap4/5 and dra7 l4_cfg */ + { .start = 0x4a000000, .end = 0x4a000000 + 0x300000, }, + /* omap4 l4_wkup */ + { .start = 0x4a300000, .end = 0x4a300000 + 0x30000, }, + /* omap5 and dra7 l4_wkup without dra7 dcan segment */ + { .start = 0x4ae00000, .end = 0x4ae00000 + 0x30000, }, +}; + +static atomic_t sysc_defer = ATOMIC_INIT(10); + +/** + * sysc_defer_non_critical - defer non_critical interconnect probing + * @ddata: device driver data + * + * We want to probe l4_cfg and l4_wkup interconnect instances before any + * l4_per instances as l4_per instances depend on resources on l4_cfg and + * l4_wkup interconnects. + */ +static int sysc_defer_non_critical(struct sysc *ddata) +{ + struct resource *res; + int i; + + if (!atomic_read(&sysc_defer)) + return 0; + + for (i = 0; i < ARRAY_SIZE(early_bus_ranges); i++) { + res = &early_bus_ranges[i]; + if (ddata->module_pa >= res->start && + ddata->module_pa <= res->end) { + atomic_set(&sysc_defer, 0); + + return 0; + } + } + + atomic_dec_if_positive(&sysc_defer); + + return -EPROBE_DEFER; +} + static struct device_node *stdout_path; static void sysc_init_stdout_path(struct sysc *ddata) @@ -856,15 +901,19 @@ static int sysc_map_and_check_registers(struct sysc *ddata) struct device_node *np = ddata->dev->of_node; int error; - if (!of_get_property(np, "reg", NULL)) - return 0; - error = sysc_parse_and_check_child_range(ddata); if (error) return error; + error = sysc_defer_non_critical(ddata); + if (error) + return error; + sysc_check_children(ddata); + if (!of_get_property(np, "reg", NULL)) + return 0; + error = sysc_parse_registers(ddata); if (error) return error; @@ -1447,12 +1496,16 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK("dwc3", 0, 0, 0x10, -ENODEV, 0x500a0200, 0xffffffff, 0), SYSC_QUIRK("d2d", 0x4a0b6000, 0, 0x10, 0x14, 0x00000010, 0xffffffff, 0), SYSC_QUIRK("d2d", 0x4a0cd000, 0, 0x10, 0x14, 0x00000010, 0xffffffff, 0), + SYSC_QUIRK("elm", 0x48080000, 0, 0x10, 0x14, 0x00000020, 0xffffffff, 0), + SYSC_QUIRK("emif", 0, 0, -ENODEV, -ENODEV, 0x40441403, 0xffff0fff, 0), + SYSC_QUIRK("emif", 0, 0, -ENODEV, -ENODEV, 0x50440500, 0xffffffff, 0), SYSC_QUIRK("epwmss", 0, 0, 0x4, -ENODEV, 0x47400001, 0xffffffff, 0), SYSC_QUIRK("gpu", 0, 0x1fc00, 0x1fc10, -ENODEV, 0, 0, 0), SYSC_QUIRK("gpu", 0, 0xfe00, 0xfe10, -ENODEV, 0x40000000 , 0xffffffff, 0), SYSC_QUIRK("hdmi", 0, 0, 0x10, -ENODEV, 0x50031d00, 0xffffffff, 0), SYSC_QUIRK("hsi", 0, 0, 0x10, 0x14, 0x50043101, 0xffffffff, 0), SYSC_QUIRK("iss", 0, 0, 0x10, -ENODEV, 0x40000101, 0xffffffff, 0), + SYSC_QUIRK("keypad", 0x4a31c000, 0, 0x10, 0x14, 0x00000020, 0xffffffff, 0), SYSC_QUIRK("mcasp", 0, 0, 0x4, -ENODEV, 0x44306302, 0xffffffff, 0), SYSC_QUIRK("mcasp", 0, 0, 0x4, -ENODEV, 0x44307b02, 0xffffffff, 0), SYSC_QUIRK("mcbsp", 0, -ENODEV, 0x8c, -ENODEV, 0, 0, 0), @@ -1464,11 +1517,14 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK("ocp2scp", 0, 0, -ENODEV, -ENODEV, 0x50060007, 0xffffffff, 0), SYSC_QUIRK("padconf", 0, 0, 0x10, -ENODEV, 0x4fff0800, 0xffffffff, 0), SYSC_QUIRK("padconf", 0, 0, -ENODEV, -ENODEV, 0x40001100, 0xffffffff, 0), + SYSC_QUIRK("pcie", 0x51000000, -ENODEV, -ENODEV, -ENODEV, 0, 0, 0), + SYSC_QUIRK("pcie", 0x51800000, -ENODEV, -ENODEV, -ENODEV, 0, 0, 0), SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x40000100, 0xffffffff, 0), SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x00004102, 0xffffffff, 0), SYSC_QUIRK("prcm", 0, 0, -ENODEV, -ENODEV, 0x40000400, 0xffffffff, 0), SYSC_QUIRK("rfbi", 0x4832a800, 0, 0x10, 0x14, 0x00000010, 0xffffffff, 0), SYSC_QUIRK("rfbi", 0x58002000, 0, 0x10, 0x14, 0x00000010, 0xffffffff, 0), + SYSC_QUIRK("sata", 0, 0xfc, 0x1100, -ENODEV, 0x5e412000, 0xffffffff, 0), SYSC_QUIRK("scm", 0, 0, 0x10, -ENODEV, 0x40000900, 0xffffffff, 0), SYSC_QUIRK("scm", 0, 0, -ENODEV, -ENODEV, 0x4e8b0100, 0xffffffff, 0), SYSC_QUIRK("scm", 0, 0, -ENODEV, -ENODEV, 0x4f000100, 0xffffffff, 0), @@ -1592,7 +1648,7 @@ static u32 sysc_quirk_dispc(struct sysc *ddata, int dispc_offset, case SOC_UNKNOWN: default: return 0; - }; + } /* Remap the whole module range to be able to reset dispc outputs */ devm_iounmap(ddata->dev, ddata->module_va); @@ -2802,6 +2858,7 @@ static int sysc_init_soc(struct sysc *ddata) const struct soc_device_attribute *match; struct ti_sysc_platform_data *pdata; unsigned long features = 0; + struct device_node *np; if (sysc_soc) return 0; @@ -2822,6 +2879,21 @@ static int sysc_init_soc(struct sysc *ddata) if (match && match->data) sysc_soc->soc = (int)match->data; + /* + * Check and warn about possible old incomplete dtb. We now want to see + * simple-pm-bus instead of simple-bus in the dtb for genpd using SoCs. + */ + switch (sysc_soc->soc) { + case SOC_AM3: + case SOC_AM4: + np = of_find_node_by_path("/ocp"); + WARN_ONCE(np && of_device_is_compatible(np, "simple-bus"), + "ti-sysc: Incomplete old dtb, please update\n"); + break; + default: + break; + } + /* Ignore devices that are not available on HS and EMU SoCs */ if (!sysc_soc->general_purpose) { switch (sysc_soc->soc) { @@ -2830,7 +2902,7 @@ static int sysc_init_soc(struct sysc *ddata) break; default: break; - }; + } } match = soc_device_match(sysc_soc_feat_match); @@ -3053,7 +3125,9 @@ static int sysc_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); - reset_control_assert(ddata->rsts); + + if (!reset_control_status(ddata->rsts)) + reset_control_assert(ddata->rsts); unprepare: sysc_unprepare(ddata); diff --git a/drivers/clk/ti/clk-54xx.c b/drivers/clk/ti/clk-54xx.c index f0542391ca4b..90e0a9ea6351 100644 --- a/drivers/clk/ti/clk-54xx.c +++ b/drivers/clk/ti/clk-54xx.c @@ -156,6 +156,8 @@ static const struct omap_clkctrl_reg_data omap5_l3main1_clkctrl_regs[] __initcon static const struct omap_clkctrl_reg_data omap5_l3main2_clkctrl_regs[] __initconst = { { OMAP5_L3_MAIN_2_CLKCTRL, NULL, 0, "l3_iclk_div" }, + { OMAP5_L3_MAIN_2_GPMC_CLKCTRL, NULL, CLKF_HW_SUP, "l3_iclk_div" }, + { OMAP5_L3_MAIN_2_OCMC_RAM_CLKCTRL, NULL, CLKF_HW_SUP, "l3_iclk_div" }, { 0 }, }; diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c index b105af63854a..047cfbdc1330 100644 --- a/drivers/pci/controller/dwc/pci-dra7xx.c +++ b/drivers/pci/controller/dwc/pci-dra7xx.c @@ -443,8 +443,8 @@ static const struct dw_pcie_ep_ops pcie_ep_ops = { .get_features = dra7xx_pcie_get_features, }; -static int __init dra7xx_add_pcie_ep(struct dra7xx_pcie *dra7xx, - struct platform_device *pdev) +static int dra7xx_add_pcie_ep(struct dra7xx_pcie *dra7xx, + struct platform_device *pdev) { int ret; struct dw_pcie_ep *ep; @@ -472,8 +472,8 @@ static int __init dra7xx_add_pcie_ep(struct dra7xx_pcie *dra7xx, return 0; } -static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx, - struct platform_device *pdev) +static int dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx, + struct platform_device *pdev) { int ret; struct dw_pcie *pci = dra7xx->pci; @@ -682,7 +682,7 @@ static int dra7xx_pcie_configure_two_lane(struct device *dev, return 0; } -static int __init dra7xx_pcie_probe(struct platform_device *pdev) +static int dra7xx_pcie_probe(struct platform_device *pdev) { u32 reg; int ret; @@ -938,6 +938,7 @@ static const struct dev_pm_ops dra7xx_pcie_pm_ops = { }; static struct platform_driver dra7xx_pcie_driver = { + .probe = dra7xx_pcie_probe, .driver = { .name = "dra7-pcie", .of_match_table = of_dra7xx_pcie_match, @@ -946,4 +947,4 @@ static struct platform_driver dra7xx_pcie_driver = { }, .shutdown = dra7xx_pcie_shutdown, }; -builtin_platform_driver_probe(dra7xx_pcie_driver, dra7xx_pcie_probe); +builtin_platform_driver(dra7xx_pcie_driver); diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c index bf1468e5bccb..ea64e187854e 100644 --- a/drivers/soc/ti/omap_prm.c +++ b/drivers/soc/ti/omap_prm.c @@ -88,6 +88,7 @@ struct omap_reset_data { #define OMAP_PRM_HAS_RSTCTRL BIT(0) #define OMAP_PRM_HAS_RSTST BIT(1) #define OMAP_PRM_HAS_NO_CLKDM BIT(2) +#define OMAP_PRM_RET_WHEN_IDLE BIT(3) #define OMAP_PRM_HAS_RESETS (OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_RSTST) @@ -174,7 +175,8 @@ static const struct omap_prm_data omap4_prm_data[] = { .name = "core", .base = 0x4a306700, .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_reton, .rstctrl = 0x210, .rstst = 0x214, .clkdm_name = "ducati", - .rstmap = rst_map_012 + .rstmap = rst_map_012, + .flags = OMAP_PRM_RET_WHEN_IDLE, }, { .name = "ivahd", .base = 0x4a306f00, @@ -199,7 +201,8 @@ static const struct omap_prm_data omap4_prm_data[] = { }, { .name = "l4per", .base = 0x4a307400, - .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_reton + .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_reton, + .flags = OMAP_PRM_RET_WHEN_IDLE, }, { .name = "cefuse", .base = 0x4a307600, @@ -332,7 +335,7 @@ static const struct omap_prm_data dra7_prm_data[] = { { .name = "l3init", .base = 0x4ae07300, .pwrstctrl = 0x0, .pwrstst = 0x4, .dmap = &omap_prm_alwon, - .rstctrl = 0x10, .rstst = 0x14, .rstmap = rst_map_012, + .rstctrl = 0x10, .rstst = 0x14, .rstmap = rst_map_01, .clkdm_name = "pcie" }, { @@ -517,7 +520,7 @@ static int omap_prm_domain_power_on(struct generic_pm_domain *domain) { struct omap_prm_domain *prmd; int ret; - u32 v; + u32 v, mode; prmd = genpd_to_prm_domain(domain); if (!prmd->cap) @@ -530,7 +533,12 @@ static int omap_prm_domain_power_on(struct generic_pm_domain *domain) else v = readl_relaxed(prmd->prm->base + prmd->pwrstctrl); - writel_relaxed(v | OMAP_PRMD_ON_ACTIVE, + if (prmd->prm->data->flags & OMAP_PRM_RET_WHEN_IDLE) + mode = OMAP_PRMD_RETENTION; + else + mode = OMAP_PRMD_ON_ACTIVE; + + writel_relaxed((v & ~PRM_POWERSTATE_MASK) | mode, prmd->prm->base + prmd->pwrstctrl); /* wait for the transition bit to get cleared */ @@ -830,8 +838,12 @@ static int omap_reset_deassert(struct reset_controller_dev *rcdev, reset->prm->data->name, id); exit: - if (reset->clkdm) + if (reset->clkdm) { + /* At least dra7 iva needs a delay before clkdm idle */ + if (has_rstst) + udelay(1); pdata->clkdm_allow_idle(reset->clkdm); + } return ret; } |