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greybus: arche-platform: Disable clock as part of driver remove 

As part of driver remove (cleanup) function, disable the clock for both
SVC, APB1 & APB2.

Testing Done:
Tested on EVT1 platform with Connect=>disconnect=>connect
iteration, almost close to 100 iterations have passed (demo branch).
And also tested with kernel-only build.

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Vaibhav Hiremath 2016-01-26 07:23:29 +05:30 committed by Greg Kroah-Hartman
parent 4fbf69c71c
commit d8b16338df
2 changed files with 5 additions and 0 deletions
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4
drivers/staging/greybus/arche-apb-ctrl.c
View File

@ -220,6 +220,10 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev,
static void apb_ctrl_cleanup(struct arche_apb_ctrl_drvdata *apb)
{
/* disable the clock */
if (gpio_is_valid(apb->clk_en_gpio))
gpio_set_value(apb->clk_en_gpio, 0);
if (!IS_ERR(apb->vcore) && regulator_is_enabled(apb->vcore) > 0)
regulator_disable(apb->vcore);

1
drivers/staging/greybus/arche-platform.c
View File

@ -104,6 +104,7 @@ static void unexport_gpios(struct arche_platform_drvdata *arche_pdata)
static void arche_platform_cleanup(struct arche_platform_drvdata *arche_pdata)
{
clk_disable_unprepare(arche_pdata->svc_ref_clk);
/* As part of exit, put APB back in reset state */
svc_reset_onoff(arche_pdata->svc_reset_gpio,
arche_pdata->is_reset_act_hi);