SA8540P-ride is one of the Qualcomm platforms that does not have access
to UEFI runtime services and on which the RTC registers are read-only,
as described in:
https://lore.kernel.org/all/20230202155448.6715-1-johan+linaro@kernel.org/
Reserve four bytes in one of the PMIC registers to hold the RTC offset
the same way as it was done for sc8280xp-crd which has similar
limitations:
commit e67b45582c ("arm64: dts: qcom: sc8280xp-crd: enable rtc")
On SA8540P-ride, the register bank SDAM6 of the first PMIC is not
writable. Following recommendations provided during the review, use
SDAM2 from the second PMIC at offset 0xa0 instead.
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Signed-off-by: Eric Chanudet <echanude@redhat.com>
Link: https://lore.kernel.org/r/20230809203506.1833205-1-echanude@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
The SA8540P PMICs are named PMM8540. Rename the devicetree source labels
to reflect this.
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Eric Chanudet <echanude@redhat.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230111160335.7175-3-johan+linaro@kernel.org
Add the missing interrupt-controller include which is needed by the RTC
node.
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Eric Chanudet <echanude@redhat.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230111160335.7175-2-johan+linaro@kernel.org
Add the rtc block on the first pmic to enable the rtc for sa8540p-ride.
Signed-off-by: Eric Chanudet <echanude@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com> # sa8540p-ride
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221219191000.2570545-3-echanude@redhat.com
pm8450a.dtsi was introduced for the descriptions of pmics used on
sa8540p based boards. Rename the dtsi to make this relationship
explicit.
Signed-off-by: Eric Chanudet <echanude@redhat.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com> # sa8540p-ride
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221219191000.2570545-2-echanude@redhat.com
