diff options
| author | Michael Turquette <mturquette@baylibre.com> | 2015-06-19 07:37:14 -0700 |
|---|---|---|
| committer | Michael Turquette <mturquette@baylibre.com> | 2015-06-19 07:37:14 -0700 |
| commit | 909aa10e6d6a9524f95dadb6b3ded1c38ec34e11 (patch) | |
| tree | 5fb10cd60e0b3c0b2372e1aed143305b32fe3888 /drivers/clk | |
| parent | 0f57d86787d8b1076ea8f9cbdddda2a46d534a27 (diff) | |
| parent | 28df9c2fb6f896179fcffd5a3f5a86e2d1dff0a5 (diff) | |
Merge branch 'ccf/atmel-fixes-for-4.1' of https://github.com/bbrezillon/linux-at91 into clk-fixes
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/at91/clk-peripheral.c | 8 | ||||
| -rw-r--r-- | drivers/clk/at91/clk-pll.c | 12 | ||||
| -rw-r--r-- | drivers/clk/at91/pmc.h | 2 |
3 files changed, 15 insertions, 7 deletions
diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c index 597fed423d7d..df2c1afa52b4 100644 --- a/drivers/clk/at91/clk-peripheral.c +++ b/drivers/clk/at91/clk-peripheral.c @@ -29,7 +29,7 @@ #define PERIPHERAL_RSHIFT_MASK 0x3 #define PERIPHERAL_RSHIFT(val) (((val) >> 16) & PERIPHERAL_RSHIFT_MASK) -#define PERIPHERAL_MAX_SHIFT 4 +#define PERIPHERAL_MAX_SHIFT 3 struct clk_peripheral { struct clk_hw hw; @@ -242,7 +242,7 @@ static long clk_sam9x5_peripheral_round_rate(struct clk_hw *hw, return *parent_rate; if (periph->range.max) { - for (; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (; shift <= PERIPHERAL_MAX_SHIFT; shift++) { cur_rate = *parent_rate >> shift; if (cur_rate <= periph->range.max) break; @@ -254,7 +254,7 @@ static long clk_sam9x5_peripheral_round_rate(struct clk_hw *hw, best_diff = cur_rate - rate; best_rate = cur_rate; - for (; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (; shift <= PERIPHERAL_MAX_SHIFT; shift++) { cur_rate = *parent_rate >> shift; if (cur_rate < rate) cur_diff = rate - cur_rate; @@ -289,7 +289,7 @@ static int clk_sam9x5_peripheral_set_rate(struct clk_hw *hw, if (periph->range.max && rate > periph->range.max) return -EINVAL; - for (shift = 0; shift < PERIPHERAL_MAX_SHIFT; shift++) { + for (shift = 0; shift <= PERIPHERAL_MAX_SHIFT; shift++) { if (parent_rate >> shift == rate) { periph->auto_div = false; periph->div = shift; diff --git a/drivers/clk/at91/clk-pll.c b/drivers/clk/at91/clk-pll.c index 6ec79dbc0840..cbbe40377ad6 100644 --- a/drivers/clk/at91/clk-pll.c +++ b/drivers/clk/at91/clk-pll.c @@ -173,8 +173,7 @@ static long clk_pll_get_best_div_mul(struct clk_pll *pll, unsigned long rate, int i = 0; /* Check if parent_rate is a valid input rate */ - if (parent_rate < characteristics->input.min || - parent_rate > characteristics->input.max) + if (parent_rate < characteristics->input.min) return -ERANGE; /* @@ -187,6 +186,15 @@ static long clk_pll_get_best_div_mul(struct clk_pll *pll, unsigned long rate, if (!mindiv) mindiv = 1; + if (parent_rate > characteristics->input.max) { + tmpdiv = DIV_ROUND_UP(parent_rate, characteristics->input.max); + if (tmpdiv > PLL_DIV_MAX) + return -ERANGE; + + if (tmpdiv > mindiv) + mindiv = tmpdiv; + } + /* * Calculate the maximum divider which is limited by PLL register * layout (limited by the MUL or DIV field size). diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index 69abb08cf146..eb8e5dc9076d 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -121,7 +121,7 @@ extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, struct at91_pmc *pmc); #endif -#if defined(CONFIG_HAVE_AT91_SMD) +#if defined(CONFIG_HAVE_AT91_H32MX) extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np, struct at91_pmc *pmc); #endif |