Messages in this thread Patch in this message | | | From | Mark Brown <> | Subject | [PATCH 3/3] mfd: wm5102: Don't wait for boot when boot sequencer is disabled | Date | Wed, 3 Apr 2013 19:05:21 +0100 |
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From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
As we are using a custom boot sequence we don't need to wait for the standard boot sequence in device init when the normal write sequence is disabled.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> --- drivers/mfd/arizona-core.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 69e9796..2b6a994 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -590,10 +590,24 @@ int arizona_dev_init(struct arizona *arizona) } } - ret = arizona_wait_for_boot(arizona); - if (ret != 0) { - dev_err(arizona->dev, "Device failed initial boot: %d\n", ret); - goto err_reset; + switch (arizona->type) { + case WM5102: + ret = regmap_read(arizona->regmap, 0x19, &val); + if (ret != 0) + dev_err(dev, + "Failed to check write sequencer state: %d\n", + ret); + else if (val & 0x01) + break; + /* Fall through */ + default: + ret = arizona_wait_for_boot(arizona); + if (ret != 0) { + dev_err(arizona->dev, + "Device failed initial boot: %d\n", ret); + goto err_reset; + } + break; } if (apply_patch) { -- 1.7.10.4
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