diff options
| author | Tero Kristo <t-kristo@ti.com> | 2019-04-04 11:11:04 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2019-04-25 20:51:33 +0300 |
| commit | 2b1202d708fd3117bca6bad8770353f389ee0f08 (patch) | |
| tree | c9b5fc9a2940a48767557886d32bb3414bd6fe26 | |
| parent | a348f05361c968cf4a54b6a4f3aeb6f9a271956a (diff) | |
| download | linux-2b1202d708fd3117bca6bad8770353f389ee0f08.tar.xz | |
clk: ti: dra7x: prevent non-existing clkctrl clocks from registering
Certain clkctrl clocks (like the USB_OTG_SS4) do not exist on some
variants of the dra7x SoC. Append a flag for these clocks and skip
the registration in cases where the clocks do not exist.
Reported-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| -rw-r--r-- | drivers/clk/ti/clk-7xx-compat.c | 2 | ||||
| -rw-r--r-- | drivers/clk/ti/clk-7xx.c | 2 | ||||
| -rw-r--r-- | drivers/clk/ti/clkctrl.c | 14 | ||||
| -rw-r--r-- | drivers/clk/ti/clock.h | 6 |
4 files changed, 22 insertions, 2 deletions
diff --git a/drivers/clk/ti/clk-7xx-compat.c b/drivers/clk/ti/clk-7xx-compat.c index e3cb7f0b03ae..0d53bd0998ba 100644 --- a/drivers/clk/ti/clk-7xx-compat.c +++ b/drivers/clk/ti/clk-7xx-compat.c @@ -362,7 +362,7 @@ static const struct omap_clkctrl_reg_data dra7_l3init_clkctrl_regs[] __initconst { DRA7_MMC2_CLKCTRL, dra7_mmc2_bit_data, CLKF_SW_SUP, "l3init_cm:clk:0010:25" }, { DRA7_USB_OTG_SS2_CLKCTRL, dra7_usb_otg_ss2_bit_data, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, { DRA7_USB_OTG_SS3_CLKCTRL, NULL, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, - { DRA7_USB_OTG_SS4_CLKCTRL, NULL, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, + { DRA7_USB_OTG_SS4_CLKCTRL, NULL, CLKF_HW_SUP | CLKF_SOC_DRA74 | CLKF_SOC_DRA76, "dpll_core_h13x2_ck" }, { DRA7_SATA_CLKCTRL, dra7_sata_bit_data, CLKF_SW_SUP, "func_48m_fclk" }, { DRA7_PCIE1_CLKCTRL, dra7_pcie1_bit_data, CLKF_SW_SUP, "l4_root_clk_div", "pcie_clkdm" }, { DRA7_PCIE2_CLKCTRL, dra7_pcie2_bit_data, CLKF_SW_SUP, "l4_root_clk_div", "pcie_clkdm" }, diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c index 597fb4a59318..098c342d9c36 100644 --- a/drivers/clk/ti/clk-7xx.c +++ b/drivers/clk/ti/clk-7xx.c @@ -348,7 +348,7 @@ static const struct omap_clkctrl_reg_data dra7_l3init_clkctrl_regs[] __initconst { DRA7_L3INIT_MMC2_CLKCTRL, dra7_mmc2_bit_data, CLKF_SW_SUP, "l3init-clkctrl:0010:25" }, { DRA7_L3INIT_USB_OTG_SS2_CLKCTRL, dra7_usb_otg_ss2_bit_data, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, { DRA7_L3INIT_USB_OTG_SS3_CLKCTRL, NULL, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, - { DRA7_L3INIT_USB_OTG_SS4_CLKCTRL, NULL, CLKF_HW_SUP, "dpll_core_h13x2_ck" }, + { DRA7_L3INIT_USB_OTG_SS4_CLKCTRL, NULL, CLKF_HW_SUP | CLKF_SOC_DRA74 | CLKF_SOC_DRA76, "dpll_core_h13x2_ck" }, { DRA7_L3INIT_SATA_CLKCTRL, dra7_sata_bit_data, CLKF_SW_SUP, "func_48m_fclk" }, { DRA7_L3INIT_OCP2SCP1_CLKCTRL, NULL, CLKF_HW_SUP, "l4_root_clk_div" }, { DRA7_L3INIT_OCP2SCP3_CLKCTRL, NULL, CLKF_HW_SUP, "l4_root_clk_div" }, diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c index 639f515e08f0..4cdeb8d4830c 100644 --- a/drivers/clk/ti/clkctrl.c +++ b/drivers/clk/ti/clkctrl.c @@ -446,6 +446,7 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node) u32 addr; int ret; char *c; + u16 soc_mask = 0; if (!(ti_clk_get_features()->flags & TI_CLK_CLKCTRL_COMPAT) && of_node_name_eq(node, "clk")) @@ -469,6 +470,13 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node) else data = dra7_clkctrl_data; } + + if (of_machine_is_compatible("ti,dra72")) + soc_mask = CLKF_SOC_DRA72; + if (of_machine_is_compatible("ti,dra74")) + soc_mask = CLKF_SOC_DRA74; + if (of_machine_is_compatible("ti,dra76")) + soc_mask = CLKF_SOC_DRA76; #endif #ifdef CONFIG_SOC_AM33XX if (of_machine_is_compatible("ti,am33xx")) { @@ -562,6 +570,12 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node) reg_data = data->regs; while (reg_data->parent) { + if ((reg_data->flags & CLKF_SOC_MASK) && + (reg_data->flags & soc_mask) == 0) { + reg_data++; + continue; + } + hw = kzalloc(sizeof(*hw), GFP_KERNEL); if (!hw) return; diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h index 4223a399b317..773e2c4ac390 100644 --- a/drivers/clk/ti/clock.h +++ b/drivers/clk/ti/clock.h @@ -83,6 +83,12 @@ enum { #define CLKF_HW_SUP BIT(6) #define CLKF_NO_IDLEST BIT(7) +#define CLKF_SOC_MASK GENMASK(10, 8) + +#define CLKF_SOC_DRA72 BIT(8) +#define CLKF_SOC_DRA74 BIT(9) +#define CLKF_SOC_DRA76 BIT(10) + #define CLK(dev, con, ck) \ { \ .lk = { \ |