lkml.org 
[lkml]   [2018]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work
On Wed, Oct 03, 2018 at 03:58:41PM +0200, Wolfram Sang wrote:
> From: Dien Pham <dien.pham.ry@renesas.com>
>
> Because BD9571MWV_DVFS_MONIVDAC is not defined in the volatile table,
> the physical register value is not updated by regmap and DVFS doesn't
> work as expected. Fix it!
>
> Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
> [wsa: rebase, add 'Fixes', reword commit message]
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
> Fixes: d3ea21272094 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver")
> ---

Any blockers for this one?

>
> Grabbed from the BSP and confirmed by the datasheet. The register is RO
> and reflecting states depending on other registers.
>
> drivers/mfd/bd9571mwv.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
> index 503979c81dae..fab3cdc27ed6 100644
> --- a/drivers/mfd/bd9571mwv.c
> +++ b/drivers/mfd/bd9571mwv.c
> @@ -59,6 +59,7 @@ static const struct regmap_access_table bd9571mwv_writable_table = {
> };
>
> static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
> + regmap_reg_range(BD9571MWV_DVFS_MONIVDAC, BD9571MWV_DVFS_MONIVDAC),
> regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
> regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
> regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
> --
> 2.19.0
>
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2018-11-09 12:04    [W:0.050 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site