* [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work
@ 2018-10-03 13:58 Wolfram Sang
2018-11-09 11:04 ` Wolfram Sang
2018-11-13 8:00 ` Lee Jones
0 siblings, 2 replies; 4+ messages in thread
From: Wolfram Sang @ 2018-10-03 13:58 UTC (permalink / raw)
To: linux-kernel
Cc: linux-renesas-soc, Marek Vasut, Lee Jones, Dien Pham, Wolfram Sang
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")
---
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
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work
2018-10-03 13:58 [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work Wolfram Sang
@ 2018-11-09 11:04 ` Wolfram Sang
2018-11-11 13:26 ` Marek Vasut
2018-11-13 8:00 ` Lee Jones
1 sibling, 1 reply; 4+ messages in thread
From: Wolfram Sang @ 2018-11-09 11:04 UTC (permalink / raw)
To: Wolfram Sang
Cc: linux-kernel, linux-renesas-soc, Marek Vasut, Lee Jones, Dien Pham
[-- Attachment #1: Type: text/plain, Size: 1420 bytes --]
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
>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work
2018-11-09 11:04 ` Wolfram Sang
@ 2018-11-11 13:26 ` Marek Vasut
0 siblings, 0 replies; 4+ messages in thread
From: Marek Vasut @ 2018-11-11 13:26 UTC (permalink / raw)
To: Wolfram Sang, Wolfram Sang
Cc: linux-kernel, linux-renesas-soc, Lee Jones, Dien Pham
On 11/09/2018 12:04 PM, Wolfram Sang wrote:
> 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),
>> --
Makes sense,
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
--
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work
2018-10-03 13:58 [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work Wolfram Sang
2018-11-09 11:04 ` Wolfram Sang
@ 2018-11-13 8:00 ` Lee Jones
1 sibling, 0 replies; 4+ messages in thread
From: Lee Jones @ 2018-11-13 8:00 UTC (permalink / raw)
To: Wolfram Sang; +Cc: linux-kernel, linux-renesas-soc, Marek Vasut, Dien Pham
On Wed, 03 Oct 2018, 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")
> ---
>
> 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(+)
Applied, thanks.
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 4+ messages in thread
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2018-10-03 13:58 [PATCH] mfd: bd9571mwv: add volatile register to make DVFS work Wolfram Sang
2018-11-09 11:04 ` Wolfram Sang
2018-11-11 13:26 ` Marek Vasut
2018-11-13 8:00 ` Lee Jones
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