On 28.10.2015 13:55, Alim Akhtar wrote:
>
>
> On 10/28/2015 10:04 AM, Krzysztof Kozlowski wrote:
>> On 28.10.2015 10:26, Krzysztof Kozlowski wrote:
>>> On 26.10.2015 21:51, Alim Akhtar wrote:
>>>> S2MPS15 PMIC has three 32k buffered clocks outputs. This patch
>>>> adds supports for the same to the s2mps11 clock driver.
>>>>
>>>> Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
>>>> ---
>>>> drivers/clk/Kconfig | 5 +++--
>>>> drivers/clk/clk-s2mps11.c | 24 ++++++++++++++++++++++++
>>>> 2 files changed, 27 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
>>>> index a1fa61159179..037a314b5d76 100644
>>>> --- a/drivers/clk/Kconfig
>>>> +++ b/drivers/clk/Kconfig
>>>> @@ -120,9 +120,10 @@ config COMMON_CLK_S2MPS11
>>>> tristate "Clock driver for S2MPS1X/S5M8767 MFD"
>>>> depends on MFD_SEC_CORE
>>>> ---help---
>>>> - This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
>>>> + This driver supports S2MPS1X/S5M8767 crystal oscillator
>>>> clock. These multi-function devices have two (S2MPS14) or three
>>>> - (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz
>>>> each.
>>>> + (S2MPS11/S2MPS13/S2MPS15/S5M8767) fixed-rate oscillators,
>>>> + clocked at 32KHz each.
>>>>
>>>> config CLK_TWL6040
>>>> tristate "External McPDM functional clock from twl6040"
>>>> diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
>>>> index d266299dfdb1..455500dca653 100644
>>>> --- a/drivers/clk/clk-s2mps11.c
>>>> +++ b/drivers/clk/clk-s2mps11.c
>>>> @@ -25,6 +25,7 @@
>>>> #include <linux/mfd/samsung/s2mps11.h>
>>>> #include <linux/mfd/samsung/s2mps13.h>
>>>> #include <linux/mfd/samsung/s2mps14.h>
>>>> +#include <linux/mfd/samsung/s2mps15.h>
>>>> #include <linux/mfd/samsung/s5m8767.h>
>>>> #include <linux/mfd/samsung/core.h>
>>>>
>>>> @@ -148,6 +149,24 @@ static struct clk_init_data
>>>> s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
>>>> },
>>>> };
>>>>
>>>> +static struct clk_init_data s2mps15_clks_init[S2MPS11_CLKS_NUM] = {
>>>> + [S2MPS11_CLK_AP] = {
>>>> + .name = "s2mps15_ap",
>>>> + .ops = &s2mps11_clk_ops,
>>>> + .flags = CLK_IS_ROOT,
>>>> + },
>>>> + [S2MPS11_CLK_CP] = {
>>>> + .name = "s2mps15_cp",
>>>> + .ops = &s2mps11_clk_ops,
>>>> + .flags = CLK_IS_ROOT,
>>>> + },
>>>> + [S2MPS11_CLK_BT] = {
>>>> + .name = "s2mps15_bt",
>>>> + .ops = &s2mps11_clk_ops,
>>>> + .flags = CLK_IS_ROOT,
>>>> + },
>>>> +};
>>>> +
>>>> static struct device_node *s2mps11_clk_parse_dt(struct
>>>> platform_device *pdev,
>>>> struct clk_init_data *clks_init)
>>>> {
>>>> @@ -207,6 +226,10 @@ static int s2mps11_clk_probe(struct
>>>> platform_device *pdev)
>>>> s2mps11_reg = S2MPS14_REG_RTCCTRL;
>>>> clks_init = s2mps14_clks_init;
>>>> break;
>>>> + case S2MPS15X:
>>>> + s2mps11_reg = S2MPS15_REG_RTC_BUF;
>>>> + clks_init = s2mps15_clks_init;
>>>
>>> Another question (after looking at RTC driver):
>>> Is this the same register address as S2MPS14?
>>
>> I found the answer - this is the same address as in S2MPS13 and S2MPS14:
>> 0xc. The S2MPS14 has only two clocks though but S2MPS13 has three.
>> Again, as in RTC, you should re-use existing support.
>>
>> It looks there is no need for this patch at all.
>>
> Yes, checked that, rtc looks same to s2mps14 and clk looks same as
> s2mps13{ not s2mps11}, because of the RTC_BUF address changes.
> Will drop patch 4 and 5 and use the existing names where applicable.
Thanks!
> I think I don't have to change the binding or Kconfig changes?
I think you don't have to. Only the main MFD driver will be updated with
respective child driver names and compatible.
Best regards,
Krzysztof
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