diff options
| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-04-02 14:50:52 +0200 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2019-04-25 21:34:04 +0200 |
| commit | 2423eeaead6f83f289c85394313e693cdefb728c (patch) | |
| tree | 13e2bd64ca8f3a73b1191a991fcf0a8ae53ecd3b /drivers/clk | |
| parent | clk: at91: allow configuring generated PCR layout (diff) | |
| download | linux-2423eeaead6f83f289c85394313e693cdefb728c.tar.xz linux-2423eeaead6f83f289c85394313e693cdefb728c.zip | |
clk: at91: usb: Add sam9x60 support
The sam9x60 USB clock supports four different parents, ensure they can be
selected.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/at91/clk-usb.c | 33 | ||||
| -rw-r--r-- | drivers/clk/at91/pmc.h | 3 |
2 files changed, 30 insertions, 6 deletions
diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c index 79ee1c760f2a..ebc37ee33518 100644 --- a/drivers/clk/at91/clk-usb.c +++ b/drivers/clk/at91/clk-usb.c @@ -23,9 +23,13 @@ #define RM9200_USB_DIV_SHIFT 28 #define RM9200_USB_DIV_TAB_SIZE 4 +#define SAM9X5_USBS_MASK GENMASK(0, 0) +#define SAM9X60_USBS_MASK GENMASK(1, 0) + struct at91sam9x5_clk_usb { struct clk_hw hw; struct regmap *regmap; + u32 usbs_mask; }; #define to_at91sam9x5_clk_usb(hw) \ @@ -111,8 +115,7 @@ static int at91sam9x5_clk_usb_set_parent(struct clk_hw *hw, u8 index) if (index > 1) return -EINVAL; - regmap_update_bits(usb->regmap, AT91_PMC_USB, AT91_PMC_USBS, - index ? AT91_PMC_USBS : 0); + regmap_update_bits(usb->regmap, AT91_PMC_USB, usb->usbs_mask, index); return 0; } @@ -124,7 +127,7 @@ static u8 at91sam9x5_clk_usb_get_parent(struct clk_hw *hw) regmap_read(usb->regmap, AT91_PMC_USB, &usbr); - return usbr & AT91_PMC_USBS; + return usbr & usb->usbs_mask; } static int at91sam9x5_clk_usb_set_rate(struct clk_hw *hw, unsigned long rate, @@ -190,9 +193,10 @@ static const struct clk_ops at91sam9n12_usb_ops = { .set_rate = at91sam9x5_clk_usb_set_rate, }; -struct clk_hw * __init -at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, - const char **parent_names, u8 num_parents) +static struct clk_hw * __init +_at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, + const char **parent_names, u8 num_parents, + u32 usbs_mask) { struct at91sam9x5_clk_usb *usb; struct clk_hw *hw; @@ -212,6 +216,7 @@ at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, usb->hw.init = &init; usb->regmap = regmap; + usb->usbs_mask = SAM9X5_USBS_MASK; hw = &usb->hw; ret = clk_hw_register(NULL, &usb->hw); @@ -224,6 +229,22 @@ at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, } struct clk_hw * __init +at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, + const char **parent_names, u8 num_parents) +{ + return _at91sam9x5_clk_register_usb(regmap, name, parent_names, + num_parents, SAM9X5_USBS_MASK); +} + +struct clk_hw * __init +sam9x60_clk_register_usb(struct regmap *regmap, const char *name, + const char **parent_names, u8 num_parents) +{ + return _at91sam9x5_clk_register_usb(regmap, name, parent_names, + num_parents, SAM9X60_USBS_MASK); +} + +struct clk_hw * __init at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, const char *parent_name) { diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 4027306b904c..44345e4ab1c9 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -194,6 +194,9 @@ struct clk_hw * __init at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, const char *parent_name); struct clk_hw * __init +sam9x60_clk_register_usb(struct regmap *regmap, const char *name, + const char **parent_names, u8 num_parents); +struct clk_hw * __init at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, const char *parent_name, const u32 *divisors); |