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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2014-05-06 11:46:10 +0300
committerLee Jones <lee.jones@linaro.org>2014-06-03 08:11:28 +0100
commitac8320c471e187d7fdc90f807199ff77c116a668 (patch)
tree19052d42fd12b3290a26a2d1c5f99aeba06a5d70 /drivers/mfd
parenta58cc84cafa2376a2d5fcdb3d513327a2fb813c2 (diff)
mfd: twl6040: Correct HPPLL configuration for 19.2 and 38.4 MHz mclk
When the MCLK is 19.2 or 38.4 MHz the HPPLL need to be enabled and can be put in bypass mode. This will fix HPPLL use on boards with 19.2MHz mclk. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/twl6040.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index 12b314ea48d..ae26d84b3a5 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -441,12 +441,9 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
TWL6040_HPLLENA;
break;
case 19200000:
- /*
- * PLL disabled
- * (enable PLL if MCLK jitter quality
- * doesn't meet specification)
- */
- hppllctl |= TWL6040_MCLK_19200KHZ;
+ /* PLL enabled, bypass mode */
+ hppllctl |= TWL6040_MCLK_19200KHZ |
+ TWL6040_HPLLBP | TWL6040_HPLLENA;
break;
case 26000000:
/* PLL enabled, active mode */
@@ -454,9 +451,9 @@ int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
TWL6040_HPLLENA;
break;
case 38400000:
- /* PLL enabled, active mode */
+ /* PLL enabled, bypass mode */
hppllctl |= TWL6040_MCLK_38400KHZ |
- TWL6040_HPLLENA;
+ TWL6040_HPLLBP | TWL6040_HPLLENA;
break;
default:
dev_err(twl6040->dev,