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SubjectRe: [PATCH 1/2] arm64: dts: exynos7: Add pmic s2mps15 device tree node


On 11/02/2015 05:00 PM, Javier Martinez Canillas wrote:
> Hello Alim,
>
> This patch looks mostly good to me, I just have two comments below:
>
> On 11/02/2015 11:04 AM, Alim Akhtar wrote:
>> This patch add pmic (s2mps15) node of espresso board,
>> which includes addition of regulators and pmic-clk sub-nodes.
>>
>> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
>> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
>> ---
>> This patch should go in after driver side changes [1] lands.
>> [1]-> https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg47736.html
>>
>> arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 349 +++++++++++++++++++++++
>> 1 file changed, 349 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
>> index 838a3626dac1..8ce04a0ec928 100644
>> --- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
>> +++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
>> @@ -53,6 +53,355 @@
>> status = "okay";
>> };
>>
>> +&hsi2c_4 {
>> + samsung,i2c-sda-delay = <100>;
>> + samsung,i2c-max-bus-freq = <200000>;
>> + status = "okay";
>> +
>> + s2mps15_pmic@66 {
>> + compatible = "samsung,s2mps15-pmic";
>> + reg = <0x66>;
>> + interrupts = <2 0>;
>
> Maybe using IRQ_TYPE_NONE instead of 0?
>
Ok will check
>> + interrupt-parent = <&gpa0>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pmic_irq>;
>> + wakeup-source;
>> +
>> + s2mps15_osc: clocks {
>> + compatible = "samsung,s2mps13-clk";
>> + #clock-cells = <1>;
>> + clock-output-names = "s2mps13_ap", "s2mps13_cp",
>> + "s2mps13_bt";
>> + };
>> +
>> + regulators {
>> + ldo1_reg: LDO1 {
>> + regulator-name = "vdd_ldo1";
>> + regulator-min-microvolt = <500000>;
>> + regulator-max-microvolt = <900000>;
>> + regulator-always-on;
>
> I see that all regulators are marked as regulator-always-on but that will
> prevent the regulator subsystem to disable unused regulators. Can you please
> double check which regulators should really be always on and which ones can
> be disabled if are not used?
>
I kept it on always, as I am still in a process for validating all IPs
on board. Will see if I can remove some of them, which I feel can be done.
> After those two changes:
>
> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
>
Thanks!
> Best regards,
>


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